Feat: t5_jax_simple_parallel implements a working example of fsdp
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aca80720c8
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@ -1,5 +1,6 @@
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*.ipynb
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t5_*/
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model_checkpoints/
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exports/
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modified_t5_model/
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traces/
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@ -1 +1,2 @@
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__pycache__
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gpt-neo-125m/
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@ -17,17 +17,6 @@ file_path = '/home/richard/Projects/learn_t5/simple_model/combined_data_t5_retri
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# training_size = len(split_datasets['train'])
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from transformers import T5TokenizerFast
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tokenizer = T5TokenizerFast.from_pretrained("t5-base", return_tensors="np", clean_up_tokenization_spaces=True)
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# Define additional special tokens
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additional_special_tokens = ["<THING_START>", "<THING_END>", "<PROPERTY_START>", "<PROPERTY_END>", "<NAME>", "<DESC>", "SIG", "UNIT", "DATA_TYPE"]
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# Add the additional special tokens to the tokenizer
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tokenizer.add_special_tokens({"additional_special_tokens": additional_special_tokens})
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model = FlaxT5ForConditionalGeneration.from_pretrained("t5-base")
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model_module = __import__(model.__module__, fromlist=["shift_tokens_tight"])
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shift_tokens_right_fn = getattr(model_module, "shift_tokens_right") # noqa: B009
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# class takes in a dataset
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class DataPrepare():
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@ -37,6 +26,19 @@ class DataPrepare():
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self.train_dataset: Optional[Dataset] = None
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self.size: int = len(raw_dataset)
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self.config: ConfigDict = config
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self.tokenizer = T5TokenizerFast.from_pretrained("t5-base", return_tensors="np", clean_up_tokenization_spaces=False)
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# Define additional special tokens
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# additional_special_tokens = ["<THING_START>", "<THING_END>", "<PROPERTY_START>", "<PROPERTY_END>", "<NAME>", "<DESC>", "<SIG>", "<UNIT>", "<DATA_TYPE>"]
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additional_special_tokens = ["<THING_START>", "<THING_END>", "<PROPERTY_START>", "<PROPERTY_END>", "<NAME>", "<DESC>", "SIG", "UNIT", "DATA_TYPE"]
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# Add the additional special tokens to the tokenizer
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self.tokenizer.add_special_tokens({"additional_special_tokens": additional_special_tokens})
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model = FlaxT5ForConditionalGeneration.from_pretrained("t5-base")
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model_module = __import__(model.__module__, fromlist=["shift_tokens_tight"])
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self.shift_tokens_right_fn = getattr(model_module, "shift_tokens_right") # noqa: B009
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self.make_dataset()
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@ -52,31 +54,37 @@ class DataPrepare():
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# text_target sets the corresponding label to inputs
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# there is no need to create a separate 'labels'
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# produce input_ids and decoder_input_ids
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model_inputs = tokenizer(
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model_inputs = self.tokenizer(
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inputs,
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max_length=self.config.max_length,
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padding="max_length",
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truncation=True,
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return_tensors="np"
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)
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labels = tokenizer(
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# we separate it out because we need the attention mask
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labels = self.tokenizer(
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text_target=targets,
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max_length=self.config.max_length,
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padding="max_length",
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truncation=True,
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return_tensors="np"
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)
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model_inputs['input_ids'] = np.asarray(model_inputs['input_ids'])
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model_inputs['attention_mask'] = np.asarray(model_inputs['attention_mask'])
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# for loss computation
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model_inputs["labels"] = labels["input_ids"]
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# make decoder input ids
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decoder_input_ids = shift_tokens_right_fn(
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# this is actually "model output" shifted right
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decoder_input_ids = self.shift_tokens_right_fn(
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labels["input_ids"], self.config.pad_token_id, self.config.decoder_start_token_id
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)
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# require by model
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model_inputs["decoder_input_ids"] = np.asarray(decoder_input_ids)
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# We need decoder_attention_mask so we can ignore pad tokens from loss
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model_inputs["decoder_attention_mask"] = labels["attention_mask"]
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# decoder_attention_mask = shift_tokens_right_fn(
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# labels["attention_mask"], self.config.pad_token_id, self.config.decoder_start_token_id
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# )
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# We need decoder_attention_mask so we can ignore pad tokens in loss
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model_inputs["decoder_attention_mask"] = np.asarray(labels["attention_mask"])
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return model_inputs
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@ -89,13 +97,13 @@ class DataPrepare():
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remove_columns=self.raw_dataset.column_names,)
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# set to numpy
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train_dataset.set_format(
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type='numpy',
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columns=[
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'input_ids', 'attention_mask',
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'labels', 'decoder_input_ids',
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'decoder_attention_mask']
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)
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# train_dataset.set_format(
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# type='numpy',
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# columns=[
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# 'input_ids', 'attention_mask', 'labels',
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# 'decoder_input_ids',
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# 'decoder_attention_mask']
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# )
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# check that data fits
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# for name in ['input_ids', 'attention_mask', 'labels', 'decoder_input_ids', 'decoder_attention_mask']:
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@ -140,15 +148,15 @@ class DataPrepare():
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for idx in batch_idx:
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batch = dataset[idx]
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batch = {k: v for k, v in batch.items()}
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batch = {k: np.array(v) for k, v in batch.items()}
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yield batch
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# testing out the class
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# %%
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# init object
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# e.g. Config
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# # testing out the class
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# # %%
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# # init object
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# # e.g. Config
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# data_config = ConfigDict(
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# dict(
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# max_length=86,
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@ -172,3 +180,13 @@ class DataPrepare():
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# batch = next(iter(train_loader))
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# batch['input_ids'].shape
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# # %%
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#
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# sentence = "<THING_START><THING_END><PROPERTY_START><PROPERTY_END><NAME><DESC><DESC><UNIT>"
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# tokens = tokenizer.tokenize(sentence)
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# print("Tokens:", tokens)
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# # Get the IDs (integer indices) of specific tokens
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# token_ids = [tokenizer.convert_tokens_to_ids(token) for token in tokens]
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# print("Token IDs:", token_ids)
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#
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#
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# # %%
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@ -242,6 +242,7 @@ def train_step(state, x):
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# with mesh: # not strictly necessary in this case
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# with mesh block is useful for explicit scope for device sharding
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# but mesh management is automatic via jit sharding annotations
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with mesh:
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new_state = train_step(initialized_state, x)
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print(f'Sharding of Weight 1:')
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@ -0,0 +1,854 @@
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{
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"transformer": {
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"h": {
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"0": {
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"attn": {
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"attention": {
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"k_proj": {
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"kernel": [
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768,
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768
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]
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},
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"out_proj": {
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"bias": [
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768
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],
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"kernel": [
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768,
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768
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]
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},
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"q_proj": {
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"kernel": [
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768,
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768
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]
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},
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"v_proj": {
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"kernel": [
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768,
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768
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]
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}
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}
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},
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"ln_1": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"ln_2": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"mlp": {
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"c_fc": {
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"bias": [
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3072
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],
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"kernel": [
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768,
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3072
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]
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},
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"c_proj": {
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"bias": [
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768
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],
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"kernel": [
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3072,
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768
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]
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}
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}
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},
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"1": {
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"attn": {
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"attention": {
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"k_proj": {
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"kernel": [
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768,
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768
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]
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},
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"out_proj": {
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"bias": [
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768
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],
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"kernel": [
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768,
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768
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]
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},
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"q_proj": {
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"kernel": [
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768,
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768
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]
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},
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"v_proj": {
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"kernel": [
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768,
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768
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]
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}
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}
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},
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"ln_1": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"ln_2": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"mlp": {
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"c_fc": {
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"bias": [
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3072
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],
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"kernel": [
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768,
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3072
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]
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},
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"c_proj": {
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"bias": [
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768
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],
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"kernel": [
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3072,
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768
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]
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}
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}
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},
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"10": {
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"attn": {
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"attention": {
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"k_proj": {
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"kernel": [
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768,
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768
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]
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},
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"out_proj": {
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"bias": [
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768
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],
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"kernel": [
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768,
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768
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]
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},
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"q_proj": {
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"kernel": [
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768,
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768
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]
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},
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"v_proj": {
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"kernel": [
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768,
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768
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]
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}
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}
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},
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"ln_1": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"ln_2": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"mlp": {
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"c_fc": {
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"bias": [
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3072
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],
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"kernel": [
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768,
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3072
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]
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},
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"c_proj": {
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"bias": [
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768
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],
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"kernel": [
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3072,
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768
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]
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}
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}
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},
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"11": {
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"attn": {
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"attention": {
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"k_proj": {
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"kernel": [
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768,
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768
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]
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},
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"out_proj": {
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"bias": [
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768
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],
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"kernel": [
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768,
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768
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]
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},
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"q_proj": {
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"kernel": [
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768,
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768
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]
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},
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"v_proj": {
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"kernel": [
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768,
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768
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]
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}
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}
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},
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"ln_1": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"ln_2": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"mlp": {
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"c_fc": {
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"bias": [
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3072
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],
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"kernel": [
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768,
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3072
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]
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},
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"c_proj": {
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"bias": [
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768
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],
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"kernel": [
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3072,
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768
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]
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}
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}
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},
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"2": {
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"attn": {
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"attention": {
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"k_proj": {
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"kernel": [
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768,
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768
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]
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},
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"out_proj": {
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"bias": [
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768
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],
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"kernel": [
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768,
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768
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]
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},
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"q_proj": {
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"kernel": [
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768,
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768
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]
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},
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"v_proj": {
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"kernel": [
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768,
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768
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]
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}
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}
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},
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"ln_1": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"ln_2": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"mlp": {
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"c_fc": {
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"bias": [
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3072
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],
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"kernel": [
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768,
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3072
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]
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},
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"c_proj": {
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"bias": [
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768
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],
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"kernel": [
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3072,
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768
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]
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}
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}
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},
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"3": {
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"attn": {
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"attention": {
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"k_proj": {
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"kernel": [
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768,
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768
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]
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},
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"out_proj": {
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"bias": [
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768
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],
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"kernel": [
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768,
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768
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]
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},
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"q_proj": {
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"kernel": [
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768,
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768
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]
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},
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"v_proj": {
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"kernel": [
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768,
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768
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]
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}
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}
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},
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"ln_1": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"ln_2": {
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"bias": [
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768
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],
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"scale": [
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768
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]
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},
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"mlp": {
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"c_fc": {
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"bias": [
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3072
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],
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"kernel": [
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768,
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3072
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]
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},
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"c_proj": {
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"bias": [
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768
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],
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"kernel": [
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3072,
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768
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]
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}
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}
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},
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"4": {
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"attn": {
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"attention": {
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"k_proj": {
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"kernel": [
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768,
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768
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]
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},
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"out_proj": {
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"bias": [
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768
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],
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"kernel": [
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768,
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768
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]
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},
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"q_proj": {
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"kernel": [
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768,
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768
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]
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},
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||||
"v_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"ln_1": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"ln_2": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"mlp": {
|
||||
"c_fc": {
|
||||
"bias": [
|
||||
3072
|
||||
],
|
||||
"kernel": [
|
||||
768,
|
||||
3072
|
||||
]
|
||||
},
|
||||
"c_proj": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"kernel": [
|
||||
3072,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"5": {
|
||||
"attn": {
|
||||
"attention": {
|
||||
"k_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"out_proj": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"q_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"v_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"ln_1": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"ln_2": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"mlp": {
|
||||
"c_fc": {
|
||||
"bias": [
|
||||
3072
|
||||
],
|
||||
"kernel": [
|
||||
768,
|
||||
3072
|
||||
]
|
||||
},
|
||||
"c_proj": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"kernel": [
|
||||
3072,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"6": {
|
||||
"attn": {
|
||||
"attention": {
|
||||
"k_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"out_proj": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"q_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"v_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"ln_1": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"ln_2": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"mlp": {
|
||||
"c_fc": {
|
||||
"bias": [
|
||||
3072
|
||||
],
|
||||
"kernel": [
|
||||
768,
|
||||
3072
|
||||
]
|
||||
},
|
||||
"c_proj": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"kernel": [
|
||||
3072,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"7": {
|
||||
"attn": {
|
||||
"attention": {
|
||||
"k_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"out_proj": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"q_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"v_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"ln_1": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"ln_2": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"mlp": {
|
||||
"c_fc": {
|
||||
"bias": [
|
||||
3072
|
||||
],
|
||||
"kernel": [
|
||||
768,
|
||||
3072
|
||||
]
|
||||
},
|
||||
"c_proj": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"kernel": [
|
||||
3072,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"8": {
|
||||
"attn": {
|
||||
"attention": {
|
||||
"k_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"out_proj": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"q_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"v_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"ln_1": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"ln_2": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"mlp": {
|
||||
"c_fc": {
|
||||
"bias": [
|
||||
3072
|
||||
],
|
||||
"kernel": [
|
||||
768,
|
||||
3072
|
||||
]
|
||||
},
|
||||
"c_proj": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"kernel": [
|
||||
3072,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"9": {
|
||||
"attn": {
|
||||
"attention": {
|
||||
"k_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"out_proj": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"q_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
},
|
||||
"v_proj": {
|
||||
"kernel": [
|
||||
768,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
},
|
||||
"ln_1": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"ln_2": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"mlp": {
|
||||
"c_fc": {
|
||||
"bias": [
|
||||
3072
|
||||
],
|
||||
"kernel": [
|
||||
768,
|
||||
3072
|
||||
]
|
||||
},
|
||||
"c_proj": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"kernel": [
|
||||
3072,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
}
|
||||
},
|
||||
"ln_f": {
|
||||
"bias": [
|
||||
768
|
||||
],
|
||||
"scale": [
|
||||
768
|
||||
]
|
||||
},
|
||||
"wpe": {
|
||||
"embedding": [
|
||||
2048,
|
||||
768
|
||||
]
|
||||
},
|
||||
"wte": {
|
||||
"embedding": [
|
||||
50257,
|
||||
768
|
||||
]
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
# %%
|
||||
import jax
|
||||
import jax.numpy as jnp
|
||||
from flax.core.frozen_dict import freeze, unfreeze
|
||||
from partitions import set_partitions
|
||||
|
||||
from transformers import FlaxAutoModelForCausalLM
|
||||
# this inits the model directly
|
||||
model = FlaxAutoModelForCausalLM.from_pretrained(
|
||||
"gpt-neo-125m",
|
||||
)
|
||||
params = model.params
|
||||
|
||||
# %%
|
||||
import json
|
||||
shape_dict = jax.tree.map(jnp.shape, params)
|
||||
# print(json.dumps(shape_dict, sort_keys=True, indent=4))
|
||||
with open('gpt-neo-125m.json', 'w') as f:
|
||||
json.dump(shape_dict, fp=f, sort_keys=True, indent=2)
|
||||
|
||||
# %%
|
||||
param_spec = set_partitions(unfreeze(params))
|
||||
|
||||
# %%
|
||||
|
|
@ -0,0 +1,108 @@
|
|||
#!/usr/bin/env python
|
||||
# coding=utf-8
|
||||
# Copyright 2021 The Google Research Authors and The HuggingFace Team All rights reserved.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||||
# you may not use this file except in compliance with the License.
|
||||
# You may obtain a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
# See the License for the specific language governing permissions and
|
||||
# limitations under the License.
|
||||
"""Utilities for constructing PyTrees of PartitionSpecs."""
|
||||
|
||||
# utils adapted from https://github.com/google-research/google-research/blob/master/flax_models/t5x/partitions.py
|
||||
|
||||
import re
|
||||
|
||||
from flax.core.frozen_dict import freeze
|
||||
from flax.traverse_util import flatten_dict, unflatten_dict
|
||||
from jax.sharding import PartitionSpec as P
|
||||
|
||||
|
||||
# Sentinels
|
||||
_unmatched = object()
|
||||
|
||||
# For specifying empty leaf dict `{}`
|
||||
empty_dict = object()
|
||||
|
||||
|
||||
def _match(qs, ks):
|
||||
"""Return True if regexes in qs match any window of strings in tuple ks."""
|
||||
# compile regexes and force complete match
|
||||
qts = tuple((re.compile(x + "$") for x in qs))
|
||||
for i in range(len(ks) - len(qs) + 1):
|
||||
matches = [x.match(y) for x, y in zip(qts, ks[i:])]
|
||||
if matches and all(matches):
|
||||
return True
|
||||
return False
|
||||
|
||||
|
||||
def _replacement_rules(rules):
|
||||
def replace(key, val):
|
||||
for rule, replacement in rules:
|
||||
if _match(rule, key):
|
||||
return replacement
|
||||
return val
|
||||
|
||||
return replace
|
||||
|
||||
|
||||
# PartitionSpec for GPTNeo
|
||||
# replicate the hidden dim and shard feed-forward and head dim
|
||||
# def _get_partition_rules():
|
||||
# return [
|
||||
# # embeddings
|
||||
# (("transformer", "wpe", "embedding"), P("mp", None)),
|
||||
# (("transformer", "wte", "embedding"), P("mp", None)),
|
||||
# # atention
|
||||
# (("attention", "(q_proj|k_proj|v_proj)", "kernel"), P(None, "mp")),
|
||||
# (("attention", "out_proj", "kernel"), P("mp", None)),
|
||||
# (("attention", "out_proj", "bias"), None),
|
||||
# # mlp
|
||||
# (("mlp", "c_fc", "kernel"), P(None, "mp")),
|
||||
# (("mlp", "c_fc", "bias"), P("mp")),
|
||||
# (("mlp", "c_proj", "kernel"), P("mp", None)),
|
||||
# (("mlp", "c_proj", "bias"), None),
|
||||
# # layer norms
|
||||
# ((r"ln_\d+", "bias"), None),
|
||||
# ((r"\d+", r"ln_\d+", "scale"), None),
|
||||
# (("ln_f", "bias"), None),
|
||||
# (("ln_f", "scale"), None),
|
||||
# ]
|
||||
|
||||
def _get_partition_rules():
|
||||
return [
|
||||
# embedding
|
||||
(("shared", "embedding"), P("model", None)),
|
||||
# SelfAttention
|
||||
(("SelfAttention", "(q|k|v)", "kernel"), P(None, "model")),
|
||||
(("SelfAttention", "o", "kernel"), P("model", None)),
|
||||
(("SelfAttention", "relative_attention_bias", "embedding"), P(None)),
|
||||
# EncDecAttention
|
||||
(("EncDecAttention", "(q|k|v)", "kernel"), P(None, "model")),
|
||||
(("EncDecAttention", "o", "kernel"), P("model", None)),
|
||||
# DenseReluDense
|
||||
(("DenseReluDense", "wi", "kernel"), P(None, "model")),
|
||||
(("DenseReluDense", "wo", "kernel"), P("model", None)),
|
||||
# layer norms
|
||||
(("final_layer_norm", "weight"), P(None)),
|
||||
(("layer_norm", "weight"), P(None)),
|
||||
]
|
||||
|
||||
|
||||
def set_partitions(in_dict):
|
||||
rules = _get_partition_rules()
|
||||
replace = _replacement_rules(rules)
|
||||
initd = {k: _unmatched for k in flatten_dict(in_dict)}
|
||||
result = {k: replace(k, v) for k, v in initd.items()}
|
||||
assert _unmatched not in result.values(), "Incomplete partition spec."
|
||||
# for item in result.values():
|
||||
# if item:
|
||||
# print(item)
|
||||
|
||||
return freeze(unflatten_dict(result))
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,651 @@
|
|||
# MARK: START
|
||||
# %%
|
||||
# let's make 8-device simulator
|
||||
import sys
|
||||
sys.dont_write_bytecode = True
|
||||
import os
|
||||
|
||||
# Set this to True to run the model on CPU only.
|
||||
USE_CPU_ONLY = True
|
||||
|
||||
flags = os.environ.get("XLA_FLAGS", "")
|
||||
if USE_CPU_ONLY:
|
||||
flags += " --xla_force_host_platform_device_count=4" # Simulate 8 devices
|
||||
# Enforce CPU-only execution
|
||||
os.environ["CUDA_VISIBLE_DEVICES"] = ""
|
||||
os.environ["JAX_PLATFORMS"] = "cpu"
|
||||
else:
|
||||
# GPU flags
|
||||
flags += (
|
||||
"--xla_gpu_enable_triton_softmax_fusion=true "
|
||||
"--xla_gpu_triton_gemm_any=false "
|
||||
"--xla_gpu_enable_async_collectives=true "
|
||||
"--xla_gpu_enable_latency_hiding_scheduler=true "
|
||||
"--xla_gpu_enable_highest_priority_async_stream=true "
|
||||
)
|
||||
os.environ["XLA_FLAGS"] = flags
|
||||
|
||||
import functools
|
||||
from functools import partial
|
||||
from pprint import pprint
|
||||
from typing import Any, Dict, Tuple, Callable, Sequence
|
||||
|
||||
import flax.linen as nn
|
||||
import jax
|
||||
import jax.numpy as jnp
|
||||
import numpy as np
|
||||
from jax.experimental.shard_map import shard_map
|
||||
from jax.sharding import Mesh, NamedSharding
|
||||
# from jax.experimental.pjit import pjit # superseded by jax.jit
|
||||
from jax.experimental import mesh_utils
|
||||
from jax.sharding import PartitionSpec
|
||||
from ml_collections import ConfigDict
|
||||
import optax
|
||||
import logging
|
||||
import time
|
||||
from datasets import Dataset, load_from_disk
|
||||
|
||||
from flax import jax_utils, traverse_util
|
||||
from flax.jax_utils import pad_shard_unpad, unreplicate
|
||||
from flax.training import train_state
|
||||
from flax.training.common_utils import get_metrics, onehot, shard, shard_prng_key
|
||||
from flax.core.frozen_dict import freeze, unfreeze
|
||||
import flax.core
|
||||
|
||||
from partitions import set_partitions
|
||||
|
||||
from tqdm import tqdm
|
||||
|
||||
from dataload import DataPrepare
|
||||
|
||||
|
||||
PyTree = Any
|
||||
Metrics = Dict[str, Tuple[jax.Array, ...]]
|
||||
|
||||
if USE_CPU_ONLY:
|
||||
jax.config.update('jax_platform_name', 'cpu')
|
||||
else:
|
||||
jax.config.update("jax_default_matmul_precision", "bfloat16")
|
||||
|
||||
|
||||
# %%
|
||||
# get platform type
|
||||
from jax.lib import xla_bridge
|
||||
print(xla_bridge.get_backend().platform)
|
||||
|
||||
# %%
|
||||
# config options
|
||||
file_path = '/home/richard/Projects/learn_t5/simple_model/combined_data_t5_retrieval'
|
||||
save_path = 't5_80_1_bf16'
|
||||
# file_path = 'combined_data'
|
||||
split_datasets = load_from_disk(file_path)
|
||||
training_size = len(split_datasets['train'])
|
||||
# Store some constant
|
||||
seed = 117
|
||||
num_epochs = 5
|
||||
batch_size = 2 # 384 is the best
|
||||
num_train_epochs = num_epochs
|
||||
per_device_train_batch_size = batch_size
|
||||
train_batch_size = per_device_train_batch_size * jax.device_count()
|
||||
per_device_eval_batch_size = batch_size
|
||||
eval_batch_size = per_device_eval_batch_size * jax.device_count()
|
||||
steps_per_epoch = training_size // train_batch_size
|
||||
total_train_steps = steps_per_epoch * num_epochs
|
||||
|
||||
warmup_steps = 0
|
||||
learning_rate = 2e-5
|
||||
|
||||
weight_decay = 0.01
|
||||
adam_beta1 = 0.9
|
||||
adam_beta2 = 0.999
|
||||
adam_epsilon = 1e-8
|
||||
label_smoothing_factor = 0.0
|
||||
|
||||
num_beams = 1
|
||||
val_max_target_length = 128
|
||||
|
||||
predict_with_generate = True
|
||||
|
||||
|
||||
# %%
|
||||
# prepare data
|
||||
# init object
|
||||
# e.g. Config
|
||||
data_config = ConfigDict(
|
||||
dict(
|
||||
max_length=86,
|
||||
pad_token_id=0,
|
||||
decoder_start_token_id=0
|
||||
)
|
||||
)
|
||||
|
||||
dataprep = DataPrepare(split_datasets['train'], data_config)
|
||||
# # example usage
|
||||
# # %%
|
||||
seed = 117
|
||||
rng = jax.random.PRNGKey(seed)
|
||||
train_loader = dataprep.data_loader(rng, batch_size=batch_size)
|
||||
batch = next(iter(train_loader))
|
||||
# batch
|
||||
|
||||
# %%
|
||||
# model
|
||||
|
||||
|
||||
from t5_model.pure_t5 import FlaxT5ForConditionalGenerationModule as model_init
|
||||
# from t5_model.pure_t5 import FlaxT5DenseActDense as model_init
|
||||
from t5_model.pure_t5 import make_config
|
||||
config = make_config()
|
||||
model = model_init(config)
|
||||
|
||||
# %%
|
||||
from transformers import FlaxT5ForConditionalGeneration
|
||||
from transformers import T5Config
|
||||
model, params = FlaxT5ForConditionalGeneration.from_pretrained("t5-base", _do_init=False)
|
||||
|
||||
|
||||
|
||||
# useful for transformer model
|
||||
# model.enable_gradient_checkpointing()
|
||||
|
||||
# enable bf16 except for layer_norm
|
||||
# from flax import traverse_util
|
||||
# flat_params = traverse_util.flatten_dict(model.params)
|
||||
# mask = {
|
||||
# path: not (path[-2] == "layer_norm" and path[-1] == "weight") for path in flat_params
|
||||
# }
|
||||
# mask = traverse_util.unflatten_dict(mask)
|
||||
# model.params = model.to_bf16(model.params, mask)
|
||||
|
||||
|
||||
##################################################################
|
||||
# set partition on model
|
||||
|
||||
# %%
|
||||
# # let's output the model parameters to a json file for study
|
||||
# import json
|
||||
# shape_dict = jax.tree.map(jnp.shape, params)
|
||||
# # print(json.dumps(shape_dict, sort_keys=True, indent=4))
|
||||
# with open('t5.json', 'w') as f:
|
||||
# json.dump(shape_dict, fp=f, sort_keys=True, indent=2)
|
||||
|
||||
# MARK: setup mesh
|
||||
# %%
|
||||
device_mesh = mesh_utils.create_device_mesh((2,2))
|
||||
print(device_mesh)
|
||||
|
||||
mesh = Mesh(devices=device_mesh, axis_names=('data', 'model'))
|
||||
print(mesh)
|
||||
|
||||
def mesh_sharding(pspec: PartitionSpec) -> NamedSharding:
|
||||
return NamedSharding(mesh, pspec)
|
||||
|
||||
|
||||
##################################################
|
||||
# optimizers
|
||||
# %%
|
||||
|
||||
def create_learning_rate_fn(
|
||||
train_ds_size: int, train_batch_size: int, num_train_epochs: int, num_warmup_steps: int, learning_rate: float
|
||||
) -> Callable[[int], jnp.ndarray]:
|
||||
"""Returns a linear warmup, linear_decay learning rate function."""
|
||||
steps_per_epoch = train_ds_size // train_batch_size
|
||||
num_train_steps = steps_per_epoch * num_train_epochs
|
||||
warmup_fn = optax.linear_schedule(init_value=0.0, end_value=learning_rate, transition_steps=num_warmup_steps)
|
||||
decay_fn = optax.linear_schedule(
|
||||
init_value=learning_rate, end_value=0, transition_steps=num_train_steps - num_warmup_steps
|
||||
)
|
||||
schedule_fn = optax.join_schedules(schedules=[warmup_fn, decay_fn], boundaries=[num_warmup_steps])
|
||||
return schedule_fn
|
||||
|
||||
|
||||
# Create learning rate schedule
|
||||
linear_decay_lr_schedule_fn = create_learning_rate_fn(
|
||||
training_size,
|
||||
train_batch_size,
|
||||
num_train_epochs,
|
||||
warmup_steps,
|
||||
learning_rate,
|
||||
)
|
||||
|
||||
# We use Optax's "masking" functionality to not apply weight decay
|
||||
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
|
||||
# mask boolean with the same structure as the parameters.
|
||||
# The mask is True for parameters that should be decayed.
|
||||
def decay_mask_fn(params):
|
||||
flat_params = traverse_util.flatten_dict(params)
|
||||
# find out all LayerNorm parameters
|
||||
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
|
||||
layer_norm_named_params = {
|
||||
layer[-2:]
|
||||
for layer_norm_name in layer_norm_candidates
|
||||
for layer in flat_params.keys()
|
||||
if layer_norm_name in "".join(layer).lower()
|
||||
}
|
||||
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
|
||||
return traverse_util.unflatten_dict(flat_mask)
|
||||
|
||||
# create adam optimizer
|
||||
adamw = optax.adamw(
|
||||
learning_rate=linear_decay_lr_schedule_fn,
|
||||
b1=adam_beta1,
|
||||
b2=adam_beta2,
|
||||
eps=adam_epsilon,
|
||||
weight_decay=weight_decay,
|
||||
mask=decay_mask_fn,
|
||||
)
|
||||
|
||||
|
||||
# %%
|
||||
# specify sharding
|
||||
|
||||
# shard data
|
||||
x_sharding = mesh_sharding(PartitionSpec('data', None)) # replicate across data axis
|
||||
batch = {key: jax.device_put(jnp.array(value), x_sharding) for key, value in batch.items()}
|
||||
# Defining the required dimensions for the self-attention layer input
|
||||
# batch_size = 2
|
||||
# seq_length = 768
|
||||
# n_heads = 12
|
||||
# head_dim = 768
|
||||
# %%
|
||||
|
||||
# Create a large array with the shape (batch_size, seq_length, n_heads, head_dim)
|
||||
# large_input = np.random.rand(2,768,768)
|
||||
# batch = jax.device_put(large_input, x_sharding)
|
||||
|
||||
# %%
|
||||
# jax.debug.visualize_array_sharding(batch['input_ids'])
|
||||
|
||||
# %%
|
||||
# shard output
|
||||
# we will shard state by tracking its output upon jax.eval_shape after init
|
||||
# define an init function to return a TrainState
|
||||
# def init_fn(rng, batch, model, optimizer):
|
||||
# # do be careful with the model init
|
||||
# # imported models might have complicated init methods
|
||||
# variables = model.init(rng,
|
||||
# input_ids=batch['input_ids'],
|
||||
# attention_mask=batch['attention_mask'],
|
||||
# decoder_input_ids=batch['decoder_attention_mask'],
|
||||
# decoder_attention_mask=batch['decoder_attention_mask']
|
||||
# )
|
||||
# state = train_state.TrainState.create( # Create a `TrainState`.
|
||||
# apply_fn=model.apply,
|
||||
# params=variables['params'],
|
||||
# tx=optimizer)
|
||||
# return state
|
||||
|
||||
|
||||
def init_fn(rng, batch, model, optimizer):
|
||||
# do be careful with the model init
|
||||
# imported models might have complicated init methods
|
||||
variables = model.init(
|
||||
rng,
|
||||
input_ids=batch['input_ids'],
|
||||
attention_mask=batch['attention_mask'],
|
||||
decoder_input_ids=batch['decoder_attention_mask'],
|
||||
decoder_attention_mask=batch['decoder_attention_mask']
|
||||
)
|
||||
state = train_state.TrainState.create( # Create a `TrainState`.
|
||||
apply_fn=model.apply,
|
||||
params=variables['params'],
|
||||
tx=optimizer)
|
||||
return state
|
||||
|
||||
# %%
|
||||
# alternative
|
||||
# def init_fn(rng, batch, model, optimizer):
|
||||
# # do be careful with the model init
|
||||
# # imported models might have complicated init methods
|
||||
# variables = model.init(
|
||||
# rng, batch
|
||||
# )
|
||||
# state = train_state.TrainState.create( # Create a `TrainState`.
|
||||
# apply_fn=model.apply,
|
||||
# params=variables['params'],
|
||||
# tx=optimizer)
|
||||
# return state
|
||||
|
||||
|
||||
# %%
|
||||
# Create an abstract closure to wrap the function before feeding it in
|
||||
# because `jax.eval_shape` only takes pytrees as arguments.
|
||||
# eval_shape(fn, rng_key, x)
|
||||
# used to perform shape inference
|
||||
# returns a nested PyTree containing jax.ShapeDtypeStruct objects as leaves
|
||||
rng, init_rng = jax.random.split(rng)
|
||||
abstract_variables = jax.eval_shape(
|
||||
functools.partial(init_fn, model=model, optimizer=adamw), init_rng, batch)
|
||||
|
||||
|
||||
# %%
|
||||
# This `state_sharding` has the same pytree structure as `state`, the output
|
||||
# of the `init_fn`.
|
||||
# flan.linen.get_sharding
|
||||
# extracts a jax.sharding tree from a PyTree containing Partitioned values and a mesh
|
||||
# jax.sharding: describes how a jax.Array is laid out across devices
|
||||
state_sharding = nn.get_sharding(abstract_variables, mesh)
|
||||
print(state_sharding)
|
||||
|
||||
# warning: do not have singleton None in your nn.partition definitions, it will screw with your sanity
|
||||
|
||||
|
||||
# %%
|
||||
jit_init_fn = jax.jit(
|
||||
init_fn,
|
||||
static_argnames=('model', 'optimizer'), # skip model and optimizer
|
||||
in_shardings=(mesh_sharding(()), x_sharding), # for PRNG key and data
|
||||
out_shardings=state_sharding
|
||||
)
|
||||
|
||||
|
||||
rng, init_rng = jax.random.split(rng)
|
||||
initialized_state = jit_init_fn(rng, batch, model, adamw)
|
||||
|
||||
# %%
|
||||
# we can analyze the params structure
|
||||
# for weight, partitioned in initialized_state.params['decoder'].items():
|
||||
# print(f'Sharding of {weight}: {partitioned}')
|
||||
# jax.debug.visualize_array_sharding(initialized_state.params['DotReluDot_0']['Dense_0']['kernel'].value)
|
||||
# jax.debug.visualize_array_sharding(initialized_state.params['DotReluDot_0']['W2'].value)
|
||||
jax.tree.map(jnp.shape, initialized_state.params['decoder'])
|
||||
|
||||
|
||||
# %%
|
||||
print(initialized_state.params['decoder']['block']['0']['layer']['0']['SelfAttention']['k']['kernel'].value.sharding)
|
||||
print(initialized_state.step)
|
||||
print(initialized_state.step.sharding)
|
||||
|
||||
|
||||
# %%
|
||||
# train step
|
||||
def loss_fn(logits, labels, padding_mask, label_smoothing_factor=0.0):
|
||||
"""
|
||||
The label smoothing implementation is adapted from Flax's official example:
|
||||
https://github.com/google/flax/blob/87a211135c6a377c8f29048a1cac3840e38b9da4/examples/wmt/train.py#L104
|
||||
"""
|
||||
vocab_size = logits.shape[-1]
|
||||
confidence = 1.0 - label_smoothing_factor
|
||||
low_confidence = (1.0 - confidence) / (vocab_size - 1)
|
||||
normalizing_constant = -(
|
||||
confidence * jnp.log(confidence) + (vocab_size - 1) * low_confidence * jnp.log(low_confidence + 1e-20)
|
||||
)
|
||||
soft_labels = onehot(labels, vocab_size, on_value=confidence, off_value=low_confidence)
|
||||
|
||||
loss = optax.softmax_cross_entropy(logits, soft_labels)
|
||||
loss = loss - normalizing_constant
|
||||
|
||||
# ignore padded tokens from loss
|
||||
loss = loss * padding_mask
|
||||
loss = loss.sum()
|
||||
num_labels = padding_mask.sum()
|
||||
return loss, num_labels
|
||||
|
||||
# %%
|
||||
|
||||
# single device code annotated with jax.jit
|
||||
@functools.partial(
|
||||
jax.jit,
|
||||
# in_shardings=(state_sharding, x_sharding),
|
||||
out_shardings=state_sharding
|
||||
)
|
||||
def train_step(state, batch):
|
||||
label_smoothing_factor=0.0
|
||||
# dropout_rng, new_dropout_rng = jax.random.split(state.dropout_rng)
|
||||
|
||||
def compute_loss(params):
|
||||
labels = batch.pop("labels")
|
||||
logits = state.apply_fn(
|
||||
{'params': params},
|
||||
input_ids=batch['input_ids'],
|
||||
attention_mask=batch['attention_mask'],
|
||||
decoder_input_ids=batch['decoder_attention_mask'],
|
||||
decoder_attention_mask=batch['decoder_attention_mask'],
|
||||
)[0]
|
||||
loss, num_labels = loss_fn(logits, labels, batch["decoder_attention_mask"], label_smoothing_factor)
|
||||
return loss, num_labels
|
||||
|
||||
# compute gradients through computational graph
|
||||
# allow values to pass through
|
||||
grad_fn = jax.value_and_grad(compute_loss, has_aux=True)
|
||||
(loss, num_labels), grad = grad_fn(state.params)
|
||||
# num_labels = jax.lax.psum(num_labels, "batch")
|
||||
|
||||
|
||||
# true grad = total grad / total samples
|
||||
# grad = jax.lax.psum(grad, "batch")
|
||||
# grad = jax.tree_util.tree_map(lambda x: x / num_labels, grad)
|
||||
new_state = state.apply_gradients(grads=grad)
|
||||
|
||||
# metrics = {"loss": loss, "learning_rate": linear_decay_lr_schedule_fn(state.step)}
|
||||
return new_state
|
||||
|
||||
|
||||
|
||||
# %%
|
||||
|
||||
# variables = model.init(
|
||||
# rng,
|
||||
# input_ids=batch['input_ids'],
|
||||
# attention_mask=batch['attention_mask'],
|
||||
# decoder_input_ids=batch['decoder_attention_mask'],
|
||||
# decoder_attention_mask=batch['decoder_attention_mask']
|
||||
# )
|
||||
# x_sharding = mesh_sharding(PartitionSpec('data', None)) # replicate across data axis
|
||||
# batch = {key: jax.device_put(jnp.array(value), x_sharding) for key, value in batch.items()}
|
||||
|
||||
with mesh:
|
||||
new_state = train_step(initialized_state, batch)
|
||||
|
||||
|
||||
|
||||
# %%
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
# # %%
|
||||
# #############################################################
|
||||
# # we cannot integrate our model pspec with train_state
|
||||
# # we just shard separately
|
||||
# # update: we also cannot use the method of modifying a partitionspec tree
|
||||
# # we have to do it the RIGHT way, following flax_pjit_tutorial to the letter
|
||||
#
|
||||
# # %%
|
||||
# def get_optim_initial_state(params):
|
||||
# params = params
|
||||
# state = adamw.init(params)
|
||||
# return tuple((state)), params
|
||||
#
|
||||
# # %%
|
||||
# # create partitions for model
|
||||
# from partitions import set_partitions
|
||||
# # set_partitions freezes the params on return
|
||||
# model_param_spec = set_partitions(unfreeze(params))
|
||||
#
|
||||
# # %%
|
||||
# params_shapes = jax.tree.map(lambda x: x.shape, params)
|
||||
# # actually tuple
|
||||
# optim_state_shapes = jax.eval_shape(get_optim_initial_state, params_shapes)
|
||||
#
|
||||
# # %%
|
||||
# # get pspec for opt_state
|
||||
# def get_opt_spec(x):
|
||||
# if isinstance(x, dict):
|
||||
# return unfreeze(model_param_spec)
|
||||
# return PartitionSpec()
|
||||
#
|
||||
# # this function replaces the empty model params spec with the 'model_param_spec'
|
||||
# opt_state_spec, param_spec = jax.tree.map(
|
||||
# get_opt_spec, optim_state_shapes, is_leaf=lambda x: isinstance(x, (dict, optax.EmptyState))
|
||||
# )
|
||||
#
|
||||
# # %%
|
||||
#
|
||||
# model = FlaxT5ForConditionalGeneration.from_pretrained("t5-base", _do_init=True)
|
||||
# # store on cpu
|
||||
# model.params = jax.tree_util.tree_map(lambda x: np.asarray(x), model.params)
|
||||
#
|
||||
# # %%
|
||||
# device_mesh = mesh_utils.create_device_mesh((2,2))
|
||||
# print(device_mesh)
|
||||
#
|
||||
# mesh = Mesh(devices=device_mesh, axis_names=('data', 'model'))
|
||||
# print(mesh)
|
||||
#
|
||||
# def mesh_sharding(pspec: PartitionSpec) -> NamedSharding:
|
||||
# return NamedSharding(mesh, pspec)
|
||||
#
|
||||
#
|
||||
# # opt_state_sharding = mesh_sharding(opt_state_spec)
|
||||
# # param_sharding = mesh_sharding(param_spec)
|
||||
#
|
||||
#
|
||||
# # %%
|
||||
# opt_state_sharding = nn.get_sharding(opt_state_spec, mesh)
|
||||
# param_sharding = nn.get_sharding(param_spec, mesh)
|
||||
#
|
||||
# # %%
|
||||
# # jit the get_initial_state function to shard params and init optimizer state in
|
||||
# # a sharded way
|
||||
# from jax.experimental.pjit import pjit
|
||||
#
|
||||
# with mesh:
|
||||
# p_get_initial_state = pjit(
|
||||
# get_optim_initial_state,
|
||||
# in_shardings=None,
|
||||
# out_shardings=(opt_state_spec, param_spec),
|
||||
# )
|
||||
#
|
||||
# # Convert your PartitionSpec to NamedSharding for model params
|
||||
# param_sharding = NamedSharding(mesh, freeze(param_spec))
|
||||
# # Use device_put with sharding to move params onto the mesh
|
||||
# sharded_params = jax.device_put(freeze(params), param_sharding)
|
||||
#
|
||||
# with mesh:
|
||||
# # params is already frozen
|
||||
# sharded_opt_state, sharded_params = p_get_initial_state(unfreeze(sharded_params))
|
||||
#
|
||||
# # %%
|
||||
#
|
||||
# # give up this section
|
||||
# #############################################################
|
||||
# # create train state
|
||||
#
|
||||
# # %%
|
||||
# # Initialize random key and input for initialization
|
||||
# rng = jax.random.PRNGKey(seed)
|
||||
# loader_rng, rng = jax.random.split(rng)
|
||||
# train_loader = dataprep.data_loader(rng, batch_size=2)
|
||||
# batch = next(iter(train_loader))
|
||||
#
|
||||
# # use the T5 base model to do this
|
||||
# from transformers import FlaxAutoModel
|
||||
# model, params = FlaxAutoModel.from_pretrained(
|
||||
# 't5-base',
|
||||
# _do_init=False
|
||||
# )
|
||||
# t5_module = model.module
|
||||
#
|
||||
# # %%
|
||||
# init_rng, rng = jax.random.split(rng)
|
||||
# variables = t5_module.init(init_rng,
|
||||
# input_ids=batch['input_ids'],
|
||||
# attention_mask=batch['attention_mask'],
|
||||
# decoder_input_ids=batch['decoder_attention_mask'],
|
||||
# decoder_attention_mask=batch['decoder_attention_mask']
|
||||
# )
|
||||
# params = variables['params']
|
||||
#
|
||||
# # create an init function
|
||||
# # %%
|
||||
# # we will shard state by tracking its output upon jax.eval_shape after init
|
||||
# # define an init function to return a TrainState
|
||||
# def init_fn(rng: jax.random.PRNGKey, batch=batch, model=t5_module, optimizer=adamw) -> train_state.TrainState:
|
||||
# init_rng, rng = jax.random.split(rng)
|
||||
# variables = model.init(
|
||||
# init_rng,
|
||||
# input_ids=batch['input_ids'],
|
||||
# attention_mask=batch['attention_mask'],
|
||||
# decoder_input_ids=batch['decoder_attention_mask'],
|
||||
# decoder_attention_mask=batch['decoder_attention_mask']
|
||||
# )
|
||||
# params = variables.pop("params")
|
||||
# state = train_state.TrainState.create(
|
||||
# apply_fn=model.__call__,
|
||||
# params=params,
|
||||
# tx=optimizer,
|
||||
# )
|
||||
# return state
|
||||
#
|
||||
# # model = FlaxT5ForConditionalGeneration.from_pretrained("t5-base", _do_init=True)
|
||||
# # Create an abstract closure to wrap the function before feeding it in
|
||||
# # because `jax.eval_shape` only takes pytrees as arguments.
|
||||
# # eval_shape(fn, rng_key, x)
|
||||
# # used to perform shape inference
|
||||
# # returns a nested PyTree containing jax.ShapeDtypeStruct objects as leaves
|
||||
# init_rng, rng = jax.random.split(rng)
|
||||
# abstract_variables = jax.eval_shape(
|
||||
# functools.partial(init_fn, model=t5_module, optimizer=adamw),
|
||||
# init_rng,
|
||||
# batch
|
||||
# )
|
||||
#
|
||||
# # %%
|
||||
# # let's make our mesh
|
||||
#
|
||||
# device_mesh = mesh_utils.create_device_mesh((2,2))
|
||||
# print(device_mesh)
|
||||
#
|
||||
# mesh = Mesh(devices=device_mesh, axis_names=('data', 'model'))
|
||||
# print(mesh)
|
||||
#
|
||||
# def mesh_sharding(pspec: PartitionSpec) -> NamedSharding:
|
||||
# return NamedSharding(mesh, pspec)
|
||||
#
|
||||
# # %%
|
||||
# # making jax compatible batch
|
||||
#
|
||||
# # %%
|
||||
# x_sharding = mesh_sharding(PartitionSpec('data', None)) # replicate across data axis
|
||||
# # batch = jax.device_put(batch), x_sharding)
|
||||
# # jax.debug.visualize_array_sharding(batch)
|
||||
#
|
||||
# # %%
|
||||
# state_sharding = nn.get_sharding(abstract_variables, mesh)
|
||||
# print(state_sharding)
|
||||
#
|
||||
# # %%
|
||||
# # integrate model_param_specs and state_out_specs
|
||||
#
|
||||
# # %%
|
||||
# # i want to make a Sharding object
|
||||
# # model_sharding = mesh_sharding(model_param_spec)
|
||||
#
|
||||
# # %%
|
||||
# jit_init_fn = jax.jit(
|
||||
# init_fn, # rng, batch, model, optimizer
|
||||
# static_argnames=('model', 'optimizer'), # skip model and optimizer
|
||||
# in_shardings=(mesh_sharding(()), x_sharding), # mesh_sharding(()), mesh_sharding(())), # for PRNG key and data
|
||||
# out_shardings=state_sharding
|
||||
# )
|
||||
#
|
||||
# # %%
|
||||
#
|
||||
# init_rng, rng = jax.random.split(rng)
|
||||
# initialized_state = jit_init_fn(
|
||||
# init_rng,
|
||||
# batch,
|
||||
# t5_module,
|
||||
# adamw)
|
||||
#
|
||||
# # jax.debug.visualize_array_sharding(initialized_state.params['DotReluDot_0']['Dense_0']['kernel'].value)
|
||||
# # jax.debug.visualize_array_sharding(initialized_state.params['DotReluDot_0']['W2'].value)
|
||||
#
|
||||
#
|
||||
# # %%
|
||||
#
|
||||
# # %%
|
||||
#
|
||||
# %%
|
||||
87
t5_jax.py
87
t5_jax.py
|
|
@ -46,11 +46,13 @@ from datasets import load_from_disk
|
|||
|
||||
|
||||
import nltk # Here to have a nice missing dependency error message early on
|
||||
from typing import Dict, Any, Union
|
||||
|
||||
from flax import jax_utils, traverse_util
|
||||
from flax.jax_utils import pad_shard_unpad, unreplicate
|
||||
from flax.training import train_state
|
||||
from flax.training.common_utils import get_metrics, onehot, shard, shard_prng_key
|
||||
from flax.core.frozen_dict import FrozenDict, unfreeze
|
||||
import flax.core
|
||||
|
||||
|
||||
|
|
@ -60,9 +62,20 @@ import time
|
|||
|
||||
# %%
|
||||
import os
|
||||
os.environ['XLA_FLAGS'] = (
|
||||
'--xla_gpu_triton_gemm_any=true --xla_gpu_enable_custom_fusions=true --xla_gpu_enable_address_computation_fusion=true'
|
||||
# os.environ['XLA_FLAGS'] = (
|
||||
# '--xla_gpu_triton_gemm_any=true '
|
||||
# '--xla_gpu_enable_custom_fusions=true '
|
||||
# '--xla_gpu_enable_address_computation_fusion=true'
|
||||
# )
|
||||
flags = (
|
||||
'--xla_gpu_enable_triton_softmax_fusion=true '
|
||||
'--xla_gpu_triton_gemm_any=True '
|
||||
# '--xla_gpu_enable_async_collectives=true '
|
||||
'--xla_gpu_enable_latency_hiding_scheduler=true '
|
||||
'--xla_gpu_enable_highest_priority_async_stream=true '
|
||||
)
|
||||
os.environ["XLA_FLAGS"] = flags
|
||||
|
||||
|
||||
os.environ.update({
|
||||
"TOKENIZERS_PARALLELISM" : "false",
|
||||
|
|
@ -76,8 +89,8 @@ os.environ.update({
|
|||
|
||||
# %%
|
||||
# get platform type
|
||||
from jax.lib import xla_bridge
|
||||
print(xla_bridge.get_backend().platform)
|
||||
from jax.extend.backend import get_backend
|
||||
print(get_backend().platform)
|
||||
|
||||
|
||||
# %%
|
||||
|
|
@ -90,14 +103,14 @@ except (LookupError, OSError):
|
|||
# %%
|
||||
# config options
|
||||
file_path = '/home/richard/Projects/learn_t5/simple_model/combined_data_t5_retrieval'
|
||||
save_path = 't5_80_1_bf16'
|
||||
save_path = 't5_5e_1_pmap'
|
||||
# file_path = 'combined_data'
|
||||
split_datasets = load_from_disk(file_path)
|
||||
training_size = len(split_datasets['train'])
|
||||
# Store some constant
|
||||
seed = 117
|
||||
num_epochs = 5
|
||||
batch_size = 384 # 384 is the best
|
||||
batch_size = 32 # 384 is the best
|
||||
num_train_epochs = num_epochs
|
||||
per_device_train_batch_size = batch_size
|
||||
train_batch_size = per_device_train_batch_size * jax.device_count()
|
||||
|
|
@ -116,7 +129,7 @@ adam_epsilon = 1e-8
|
|||
label_smoothing_factor = 0.0
|
||||
|
||||
num_beams = 1
|
||||
val_max_target_length = 128
|
||||
val_max_target_length = 86
|
||||
|
||||
predict_with_generate = True
|
||||
|
||||
|
|
@ -126,7 +139,7 @@ predict_with_generate = True
|
|||
from transformers import T5TokenizerFast
|
||||
tokenizer = T5TokenizerFast.from_pretrained("t5-base", return_tensors="np", clean_up_tokenization_spaces=True)
|
||||
# Define additional special tokens
|
||||
additional_special_tokens = ["<THING_START>", "<THING_END>", "<PROPERTY_START>", "<PROPERTY_END>", "<NAME>", "<DESC>", "SIG", "UNIT", "DATA_TYPE"]
|
||||
additional_special_tokens = ["<THING_START>", "<THING_END>", "<PROPERTY_START>", "<PROPERTY_END>", "<NAME>", "<DESC>", "<SIG>", "<UNIT>", "<DATA_TYPE>"]
|
||||
# Add the additional special tokens to the tokenizer
|
||||
tokenizer.add_special_tokens({"additional_special_tokens": additional_special_tokens})
|
||||
|
||||
|
|
@ -172,15 +185,43 @@ from flax import traverse_util
|
|||
|
||||
model = FlaxT5ForConditionalGeneration.from_pretrained("t5-base")
|
||||
# useful for transformer model
|
||||
model.enable_gradient_checkpointing()
|
||||
# model.enable_gradient_checkpointing()
|
||||
|
||||
# enable bf16 except for layer_norm
|
||||
flat_params = traverse_util.flatten_dict(model.params)
|
||||
mask = {
|
||||
path: not (path[-2] == "layer_norm" and path[-1] == "weight") for path in flat_params
|
||||
}
|
||||
mask = traverse_util.unflatten_dict(mask)
|
||||
model.params = model.to_bf16(model.params, mask)
|
||||
# flat_params = traverse_util.flatten_dict(model.params)
|
||||
# mask = {
|
||||
# path: not (path[-2] == "layer_norm" and path[-1] == "weight") for path in flat_params
|
||||
# }
|
||||
# mask = traverse_util.unflatten_dict(mask)
|
||||
# # borrowed from transformers modeling_flax_utils
|
||||
# def cast_floating_to(params: Union[Dict, FrozenDict], dtype: jnp.dtype, mask: Any = None) -> Any:
|
||||
# """
|
||||
# Helper method to cast floating-point values of given parameter `PyTree` to given `dtype`.
|
||||
# """
|
||||
#
|
||||
# # taken from https://github.com/deepmind/jmp/blob/3a8318abc3292be38582794dbf7b094e6583b192/jmp/_src/policy.py#L27
|
||||
# def conditional_cast(param):
|
||||
# if isinstance(param, jnp.ndarray) and jnp.issubdtype(param.dtype, jnp.floating):
|
||||
# param = param.astype(dtype)
|
||||
# return param
|
||||
#
|
||||
# if mask is None:
|
||||
# return jax.tree_util.tree_map(conditional_cast, params)
|
||||
#
|
||||
# flat_params = traverse_util.flatten_dict(params)
|
||||
# flat_mask, _ = jax.tree_util.tree_flatten(mask)
|
||||
#
|
||||
# for masked, key in zip(flat_mask, sorted(flat_params.keys())):
|
||||
# if masked:
|
||||
# flat_params[key] = conditional_cast(flat_params[key])
|
||||
#
|
||||
# return traverse_util.unflatten_dict(flat_params)
|
||||
#
|
||||
# # Cast parameters to bfloat16 if desired
|
||||
# # params = jax.tree.tree_map(lambda x: x.astype(jnp.bfloat16), params)
|
||||
# # instead of casting the whole thing, we cast only certain parts of the tree
|
||||
# params = cast_floating_to(model.params, jnp.bfloat16, mask)
|
||||
|
||||
|
||||
# %%
|
||||
# # Function to extract shape and dtype without showing values
|
||||
|
|
@ -527,10 +568,12 @@ for epoch in epochs:
|
|||
# jax.profiler.stop_trace()
|
||||
# %%
|
||||
|
||||
# output_dir = save_path
|
||||
# # save checkpoint after each epoch and push checkpoint to the hub
|
||||
# if jax.process_index() == 0:
|
||||
# params = jax.device_get(jax.tree_util.tree_map(lambda x: x[0], state.params))
|
||||
# params = jax.tree_util.tree_map(lambda x: x.astype(jnp.float32), params)
|
||||
# model.save_pretrained(output_dir, params=params)
|
||||
# tokenizer.save_pretrained(output_dir)
|
||||
output_dir = save_path
|
||||
# save checkpoint after each epoch and push checkpoint to the hub
|
||||
if jax.process_index() == 0:
|
||||
params = jax.device_get(jax.tree_util.tree_map(lambda x: x[0], state.params))
|
||||
params = jax.tree_util.tree_map(lambda x: x.astype(jnp.float32), params)
|
||||
model.save_pretrained(output_dir, params=params)
|
||||
tokenizer.save_pretrained(output_dir)
|
||||
|
||||
# %%
|
||||
|
|
|
|||
|
|
@ -0,0 +1,697 @@
|
|||
# %%
|
||||
import os
|
||||
# Set this to True to run the model on CPU only.
|
||||
USE_CPU_ONLY = False
|
||||
|
||||
flags = os.environ.get("XLA_FLAGS", "")
|
||||
if USE_CPU_ONLY:
|
||||
flags += " --xla_force_host_platform_device_count=4" # Simulate 8 devices
|
||||
# Enforce CPU-only execution
|
||||
os.environ["CUDA_VISIBLE_DEVICES"] = ""
|
||||
os.environ["JAX_PLATFORMS"] = "cpu"
|
||||
else:
|
||||
# GPU flags
|
||||
flags = (
|
||||
'--xla_gpu_enable_triton_softmax_fusion=true '
|
||||
'--xla_gpu_triton_gemm_any=True '
|
||||
# '--xla_gpu_enable_async_collectives=true '
|
||||
'--xla_gpu_enable_latency_hiding_scheduler=true '
|
||||
'--xla_gpu_enable_highest_priority_async_stream=true '
|
||||
)
|
||||
os.environ["CUDA_VISIBLE_DEVICES"] = "0"
|
||||
|
||||
os.environ["XLA_FLAGS"] = flags
|
||||
os.environ.update({
|
||||
"TOKENIZERS_PARALLELISM" : "false",
|
||||
"CUDA_DEVICE_MAX_CONNECTIONS" : "1",
|
||||
"NCCL_LL128_BUFFSIZE": "-2",
|
||||
"NCCL_LL_BUFFSIZE": "-2",
|
||||
"NCCL_PROTO": "SIMPLE,LL,LL128",
|
||||
"XLA_PYTHON_CLIENT_MEM_FRACTION" : "0.90",
|
||||
# "XLA_PYTHON_CLIENT_PREALLOCATE" : "false"
|
||||
})
|
||||
|
||||
|
||||
|
||||
|
||||
import functools
|
||||
from functools import partial
|
||||
from pprint import pprint
|
||||
from typing import Any, Dict, Tuple, Callable, Sequence, Dict, Union
|
||||
|
||||
import flax.linen as nn
|
||||
import jax
|
||||
import jax.numpy as jnp
|
||||
import numpy as np
|
||||
from jax.experimental.shard_map import shard_map
|
||||
from jax.sharding import Mesh, NamedSharding
|
||||
# from jax.experimental.pjit import pjit # superseded by jax.jit
|
||||
from jax.experimental import mesh_utils
|
||||
from jax.sharding import PartitionSpec
|
||||
from ml_collections import ConfigDict
|
||||
import optax
|
||||
import logging
|
||||
import time
|
||||
from datasets import Dataset, load_from_disk
|
||||
|
||||
from flax import jax_utils, traverse_util
|
||||
from flax.jax_utils import pad_shard_unpad, unreplicate
|
||||
from flax.training import train_state
|
||||
from flax.training.common_utils import get_metrics, onehot, shard, shard_prng_key
|
||||
from flax.core.frozen_dict import freeze, unfreeze, FrozenDict
|
||||
import flax.core
|
||||
|
||||
# model checkpointing and saving utilities
|
||||
from flax import linen as nn
|
||||
from flax.training import checkpoints, train_state
|
||||
from flax import struct, serialization
|
||||
import orbax.checkpoint as ocp
|
||||
from flax.training import orbax_utils
|
||||
|
||||
from parallel.partitions import set_partitions
|
||||
|
||||
from tqdm import tqdm
|
||||
|
||||
from parallel.dataload import DataPrepare
|
||||
|
||||
|
||||
PyTree = Any
|
||||
Metrics = Dict[str, Tuple[jax.Array, ...]]
|
||||
|
||||
if USE_CPU_ONLY:
|
||||
jax.config.update('jax_platform_name', 'cpu')
|
||||
else:
|
||||
jax.config.update("jax_default_matmul_precision", "bfloat16")
|
||||
|
||||
jax.config.update("jax_compilation_cache_dir", "/tmp/jax_cache")
|
||||
jax.config.update("jax_persistent_cache_min_entry_size_bytes", -1)
|
||||
jax.config.update("jax_persistent_cache_min_compile_time_secs", 0)
|
||||
|
||||
|
||||
|
||||
|
||||
# %%
|
||||
## get platform type
|
||||
from jax.extend.backend import get_backend
|
||||
print(get_backend().platform)
|
||||
print(jax.devices())
|
||||
|
||||
# %%
|
||||
# config options
|
||||
file_path = '/home/richard/Projects/learn_t5/simple_model/combined_data_t5_retrieval/'
|
||||
save_path = '/home/richard/Projects/06_research/jax_models/t5_80e_fp32_parallel/'
|
||||
# file_path = 'combined_data'
|
||||
split_datasets = load_from_disk(file_path)
|
||||
training_size = len(split_datasets['train'])
|
||||
# Store some constant
|
||||
seed = 117
|
||||
num_epochs = 5
|
||||
batch_size = 32
|
||||
num_train_epochs = num_epochs
|
||||
per_device_train_batch_size = batch_size
|
||||
train_batch_size = per_device_train_batch_size * jax.device_count()
|
||||
per_device_eval_batch_size = batch_size
|
||||
eval_batch_size = per_device_eval_batch_size * jax.device_count()
|
||||
steps_per_epoch = training_size // train_batch_size
|
||||
total_train_steps = steps_per_epoch * num_epochs
|
||||
|
||||
warmup_steps = 0
|
||||
learning_rate = 5e-5
|
||||
|
||||
weight_decay = 0.01
|
||||
adam_beta1 = 0.9
|
||||
adam_beta2 = 0.999
|
||||
adam_epsilon = 1e-8
|
||||
label_smoothing_factor = 0.0
|
||||
num_beams = 1
|
||||
val_max_target_length = 128
|
||||
predict_with_generate = True
|
||||
|
||||
|
||||
# %%
|
||||
# prepare data
|
||||
# init object
|
||||
# e.g. Config
|
||||
print("preparing data")
|
||||
data_config = ConfigDict(
|
||||
dict(
|
||||
max_length=128,
|
||||
pad_token_id=0,
|
||||
decoder_start_token_id=0
|
||||
)
|
||||
)
|
||||
|
||||
dataprep = DataPrepare(split_datasets['train'], data_config)
|
||||
# # example usage
|
||||
# # %%
|
||||
seed = 117
|
||||
rng = jax.random.PRNGKey(seed)
|
||||
train_loader = dataprep.data_loader(rng, batch_size=batch_size)
|
||||
batch = next(iter(train_loader))
|
||||
# batch
|
||||
|
||||
# %%
|
||||
# model
|
||||
|
||||
# working
|
||||
# from parallel.t5_model.pure_t5 import FlaxT5ForConditionalGenerationModule as model_init
|
||||
# # from t5_model.pure_t5 import FlaxT5DenseActDense as model_init
|
||||
# from parallel.t5_model.pure_t5 import make_config
|
||||
# config = make_config()
|
||||
# model = model_init(config=config, dtype=jnp.bfloat16, gradient_checkpointing=True)
|
||||
|
||||
|
||||
# %%
|
||||
# from transformers import FlaxT5ForConditionalGeneration, T5Config
|
||||
# model = FlaxT5ForConditionalGeneration.from_pretrained(
|
||||
# "t5-base",
|
||||
# dtype=jnp.bfloat16,
|
||||
# )
|
||||
# # pretrained_params = model.params
|
||||
# model = model.module
|
||||
|
||||
# %%
|
||||
# from t5_model.configuration_t5 import FrozenT5Config as T5ConfigCustom
|
||||
from t5_model.modeling_t5_flax import FlaxT5ForConditionalGeneration as custom_model
|
||||
main_model = custom_model.from_pretrained(
|
||||
"t5-base",
|
||||
dtype=jnp.float32,
|
||||
# gradient_checkpointing=True,
|
||||
)
|
||||
params = main_model.params
|
||||
# pretrained_params = model.params
|
||||
model = main_model.module
|
||||
|
||||
# %%
|
||||
# # testing config hashability
|
||||
# # some explanation:
|
||||
# # The PreTrainedModel class loads a T5Config model that is not hashable because
|
||||
# # it is a complicated class that pretends to be a dataclass.
|
||||
# # The solution is to extract a dict from it, then make a ConfigDict from
|
||||
# # ml_collections library so that we can get values via the "." operator.
|
||||
# # also, we can switch between FrozenConfigDict and ConfigDict, allowing us to
|
||||
# # modify the config before passing to the next layer
|
||||
# from transformers import T5Config
|
||||
# from t5_model.configuration_t5 import FrozenT5Config
|
||||
# from ml_collections import ConfigDict, FrozenConfigDict
|
||||
#
|
||||
# config = T5Config.from_pretrained("t5-base").to_dict()
|
||||
# config.pop('architectures')
|
||||
# config.pop('id2label')
|
||||
# # test if it works
|
||||
# frozen_config = FrozenConfigDict(config)
|
||||
# # test hash
|
||||
# hash(frozen_config)
|
||||
|
||||
# %%
|
||||
|
||||
# %%
|
||||
# # print model
|
||||
# rng, input_rng = jax.random.split(rng)
|
||||
# model.tabulate(
|
||||
# input_rng,
|
||||
# input_ids=batch['input_ids'],
|
||||
# attention_mask=batch['attention_mask'],
|
||||
# decoder_input_ids=batch['decoder_input_ids'],
|
||||
# decoder_attention_mask=batch['decoder_attention_mask'],
|
||||
# console_kwargs={"force_jupyter": True}
|
||||
# )
|
||||
|
||||
# %%
|
||||
# print model datatype to verify
|
||||
# rng, input_rng = jax.random.split(rng)
|
||||
# variables = model.init(
|
||||
# input_rng,
|
||||
# input_ids=batch['input_ids'],
|
||||
# attention_mask=batch['attention_mask'],
|
||||
# decoder_input_ids=batch['decoder_input_ids'],
|
||||
# decoder_attention_mask=batch['decoder_attention_mask']
|
||||
# )
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
# %%
|
||||
# create mesh
|
||||
print("creating mesh")
|
||||
device_mesh = mesh_utils.create_device_mesh((1,1))
|
||||
print(device_mesh)
|
||||
|
||||
mesh = Mesh(devices=device_mesh, axis_names=('data', 'model'))
|
||||
print(mesh)
|
||||
|
||||
def mesh_sharding(pspec: PartitionSpec) -> NamedSharding:
|
||||
return NamedSharding(mesh, pspec, memory_kind="device")
|
||||
|
||||
x_sharding = mesh_sharding(PartitionSpec('data', None)) # replicate across data axis
|
||||
model_sharding=mesh_sharding(PartitionSpec(None, 'model'))
|
||||
|
||||
|
||||
# %%
|
||||
# optimizers
|
||||
|
||||
def create_learning_rate_fn(
|
||||
train_ds_size: int, train_batch_size: int, num_train_epochs: int, num_warmup_steps: int, learning_rate: float
|
||||
) -> Callable[[int], jnp.ndarray]:
|
||||
"""Returns a linear warmup, linear_decay learning rate function."""
|
||||
steps_per_epoch = train_ds_size // train_batch_size
|
||||
num_train_steps = steps_per_epoch * num_train_epochs
|
||||
warmup_fn = optax.linear_schedule(init_value=0.0, end_value=learning_rate, transition_steps=num_warmup_steps)
|
||||
decay_fn = optax.linear_schedule(
|
||||
init_value=learning_rate, end_value=0, transition_steps=num_train_steps - num_warmup_steps
|
||||
)
|
||||
schedule_fn = optax.join_schedules(schedules=[warmup_fn, decay_fn], boundaries=[num_warmup_steps])
|
||||
return schedule_fn
|
||||
|
||||
|
||||
# Create learning rate schedule
|
||||
linear_decay_lr_schedule_fn = create_learning_rate_fn(
|
||||
training_size,
|
||||
train_batch_size,
|
||||
num_train_epochs,
|
||||
warmup_steps,
|
||||
learning_rate,
|
||||
)
|
||||
|
||||
# We use Optax's "masking" functionality to not apply weight decay
|
||||
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
|
||||
# mask boolean with the same structure as the parameters.
|
||||
# The mask is True for parameters that should be decayed.
|
||||
def decay_mask_fn(params):
|
||||
flat_params = traverse_util.flatten_dict(params)
|
||||
# find out all LayerNorm parameters
|
||||
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
|
||||
layer_norm_named_params = {
|
||||
layer[-2:]
|
||||
for layer_norm_name in layer_norm_candidates
|
||||
for layer in flat_params.keys()
|
||||
if layer_norm_name in "".join(layer).lower()
|
||||
}
|
||||
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
|
||||
return traverse_util.unflatten_dict(flat_mask)
|
||||
|
||||
# create adam optimizer
|
||||
adamw = optax.adamw(
|
||||
learning_rate=linear_decay_lr_schedule_fn,
|
||||
b1=adam_beta1,
|
||||
b2=adam_beta2,
|
||||
eps=adam_epsilon,
|
||||
weight_decay=weight_decay,
|
||||
mask=decay_mask_fn,
|
||||
)
|
||||
|
||||
|
||||
print("compile")
|
||||
|
||||
|
||||
# enable bf16 except for layer_norm
|
||||
def create_mask_for_layer_norm(params):
|
||||
flat_params = traverse_util.flatten_dict(params)
|
||||
mask = {
|
||||
path: not (path[-2] == "layer_norm" and path[-1] == "weight") for path in flat_params
|
||||
}
|
||||
mask = traverse_util.unflatten_dict(mask)
|
||||
return mask
|
||||
|
||||
# borrowed from transformers modeling_flax_utils
|
||||
def cast_floating_to(params: Union[Dict, FrozenDict], dtype: jnp.dtype, mask: Any = None) -> Any:
|
||||
"""
|
||||
Helper method to cast floating-point values of given parameter `PyTree` to given `dtype`.
|
||||
"""
|
||||
|
||||
# taken from https://github.com/deepmind/jmp/blob/3a8318abc3292be38582794dbf7b094e6583b192/jmp/_src/policy.py#L27
|
||||
def conditional_cast(param):
|
||||
if isinstance(param, jnp.ndarray) and jnp.issubdtype(param.dtype, jnp.floating):
|
||||
param = param.astype(dtype)
|
||||
return param
|
||||
|
||||
if mask is None:
|
||||
return jax.tree_util.tree_map(conditional_cast, params)
|
||||
|
||||
flat_params = traverse_util.flatten_dict(params)
|
||||
flat_mask, _ = jax.tree_util.tree_flatten(mask)
|
||||
|
||||
for masked, key in zip(flat_mask, sorted(flat_params.keys())):
|
||||
if masked:
|
||||
flat_params[key] = conditional_cast(flat_params[key])
|
||||
|
||||
return traverse_util.unflatten_dict(flat_params)
|
||||
|
||||
# Cast all parameters to bfloat16 if desired
|
||||
# params = jax.tree.tree_map(lambda x: x.astype(jnp.bfloat16), params)
|
||||
|
||||
# %%
|
||||
def init_fn(params, model, optimizer):
|
||||
# do be careful with the model init
|
||||
# imported models might have complicated init methods
|
||||
# mask = create_mask_for_layer_norm(params)
|
||||
# override params with bfloat version
|
||||
# params= cast_floating_to(params, jnp.bfloat16, mask)
|
||||
|
||||
state = train_state.TrainState.create( # Create a `TrainState`.
|
||||
apply_fn=model.apply,
|
||||
params=params,
|
||||
tx=optimizer)
|
||||
return state
|
||||
|
||||
|
||||
# def init_fn(rng, batch, model, optimizer):
|
||||
# # do be careful with the model init
|
||||
# # imported models might have complicated init methods
|
||||
# variables = model.init(
|
||||
# rng,
|
||||
# input_ids=batch['input_ids'],
|
||||
# attention_mask=batch['attention_mask'],
|
||||
# decoder_input_ids=batch['decoder_input_ids'],
|
||||
# decoder_attention_mask=batch['decoder_attention_mask']
|
||||
# )
|
||||
# params = variables['params']
|
||||
# mask = create_mask_for_layer_norm(params)
|
||||
# # override params with bfloat version
|
||||
# params= cast_floating_to(params, jnp.bfloat16, mask)
|
||||
#
|
||||
# state = train_state.TrainState.create( # Create a `TrainState`.
|
||||
# apply_fn=model.apply,
|
||||
# params=params,
|
||||
# tx=optimizer)
|
||||
# return state
|
||||
|
||||
|
||||
|
||||
# %%
|
||||
# Create an abstract closure to wrap the function before feeding it in
|
||||
# because `jax.eval_shape` only takes pytrees as arguments.
|
||||
# eval_shape(fn, rng_key, x)
|
||||
# used to perform shape inference
|
||||
# returns a nested PyTree containing jax.ShapeDtypeStruct objects as leaves
|
||||
# rng, init_rng = jax.random.split(rng)
|
||||
abstract_variables = jax.eval_shape(
|
||||
functools.partial(init_fn, model=model, optimizer=adamw), params)
|
||||
|
||||
# rng, init_rng = jax.random.split(rng)
|
||||
# abstract_variables = jax.eval_shape(
|
||||
# functools.partial(init_fn, model=model, optimizer=adamw), init_rng, batch)
|
||||
|
||||
|
||||
# %%
|
||||
# This `state_sharding` has the same pytree structure as `state`, the output
|
||||
# of the `init_fn`.
|
||||
# flan.linen.get_sharding
|
||||
# extracts a jax.sharding tree from a PyTree containing Partitioned values and a mesh
|
||||
# jax.sharding: describes how a jax.Array is laid out across devices
|
||||
state_sharding = nn.get_sharding(abstract_variables, mesh)
|
||||
# print(state_sharding)
|
||||
|
||||
# warning: do not have singleton None in your nn.partition definitions, it will screw with your sanity
|
||||
|
||||
##################################################
|
||||
# # %%
|
||||
# # replace the params tree with the new modified tree
|
||||
# # create partitions for model
|
||||
# from parallel.partitions import set_partitions
|
||||
# # set_partitions freezes the params on return
|
||||
# model_part_spec = set_partitions(unfreeze(params))
|
||||
# # p is already a partition spec
|
||||
# model_named_sharding = jax.tree.map(lambda p: mesh_sharding(p), model_part_spec)
|
||||
#
|
||||
# # %%
|
||||
# # get_shapes = jax.tree.map(jnp.shape, params)
|
||||
# # actually tuple
|
||||
# # state_shapes = jax.eval_shape(state_sharding, get_shapes)
|
||||
#
|
||||
# # %%
|
||||
# # get pspec for opt_state
|
||||
# def get_opt_spec(x):
|
||||
# if isinstance(x, dict):
|
||||
# return unfreeze(model_named_sharding)
|
||||
# # return an empty partspec
|
||||
# return mesh_sharding((PartitionSpec()))
|
||||
#
|
||||
# # this function replaces the empty model params spec with the 'model_named_shard'
|
||||
# state_sharding = jax.tree.map(
|
||||
# get_opt_spec, state_sharding, is_leaf=lambda x: isinstance(x, (dict, optax.EmptyState))
|
||||
# )
|
||||
|
||||
|
||||
|
||||
# %%
|
||||
jit_init_fn = jax.jit(
|
||||
init_fn,
|
||||
static_argnames=('model', 'optimizer'), # skip model and optimizer
|
||||
in_shardings=mesh_sharding(PartitionSpec(())), # we don't shard params explicitly
|
||||
out_shardings=state_sharding # but returned initialized_state is sharded
|
||||
)
|
||||
initialized_state = jit_init_fn(params, model, adamw)
|
||||
|
||||
|
||||
# jit_init_fn = jax.jit(
|
||||
# init_fn,
|
||||
# static_argnames=('model', 'optimizer'), # skip model and optimizer
|
||||
# in_shardings=(mesh_sharding(()), x_sharding), # for PRNG key and data
|
||||
# out_shardings=state_sharding
|
||||
# )
|
||||
#
|
||||
#
|
||||
# rng, init_rng = jax.random.split(rng)
|
||||
# initialized_state = jit_init_fn(rng, batch, model, adamw)
|
||||
|
||||
|
||||
# %%
|
||||
# train step
|
||||
def loss_fn(logits, labels, padding_mask, label_smoothing_factor=0.0):
|
||||
"""
|
||||
The label smoothing implementation is adapted from Flax's official example:
|
||||
https://github.com/google/flax/blob/87a211135c6a377c8f29048a1cac3840e38b9da4/examples/wmt/train.py#L104
|
||||
"""
|
||||
vocab_size = logits.shape[-1]
|
||||
confidence = 1.0 - label_smoothing_factor
|
||||
low_confidence = (1.0 - confidence) / (vocab_size - 1)
|
||||
normalizing_constant = -(
|
||||
confidence * jnp.log(confidence) + (vocab_size - 1) * low_confidence * jnp.log(low_confidence + 1e-20)
|
||||
)
|
||||
soft_labels = onehot(labels, vocab_size, on_value=confidence, off_value=low_confidence)
|
||||
|
||||
loss = optax.softmax_cross_entropy(logits, soft_labels)
|
||||
loss = loss - normalizing_constant
|
||||
|
||||
# ignore padded tokens from loss
|
||||
loss = loss * padding_mask
|
||||
loss = loss.sum()
|
||||
num_labels = padding_mask.sum()
|
||||
return loss, num_labels
|
||||
|
||||
# %%
|
||||
|
||||
# sharded_loss_fn = jax.jit(
|
||||
# loss_fn,
|
||||
# in_shardings=(mesh_sharding('model'), x_sharding), # params partitioned across 'model' axis
|
||||
# out_shardings=(mesh_sharding('model')), # Loss should be aggregated across 'model'
|
||||
# )
|
||||
|
||||
def gather_and_sum(
|
||||
sharded_values,
|
||||
in_shardings
|
||||
):
|
||||
with mesh:
|
||||
# Gather sharded values into a single device
|
||||
gathered_values = jax.jit(
|
||||
lambda x: x, in_shardings=in_shardings, out_shardings=None
|
||||
)(sharded_values)
|
||||
|
||||
# Compute the sum of gathered values
|
||||
summed_value = jax.tree.map(lambda x: jnp.sum(x), gathered_values)
|
||||
return summed_value
|
||||
|
||||
|
||||
# single device code annotated with jax.jit
|
||||
@functools.partial(
|
||||
jax.jit,
|
||||
# state is state_sharding initialized from init_fn
|
||||
# x_sharding is data sharded explicitly later
|
||||
in_shardings=(state_sharding, x_sharding),
|
||||
# return state as state_sharding
|
||||
# we do not shard the metrics
|
||||
out_shardings=(state_sharding, mesh_sharding(PartitionSpec())),
|
||||
donate_argnames=('state'),
|
||||
)
|
||||
def train_step(state, batch):
|
||||
|
||||
label_smoothing_factor=0.0
|
||||
# dropout_rng, new_dropout_rng = jax.random.split(state.dropout_rng)
|
||||
def compute_loss(params, batch):
|
||||
# check constraints
|
||||
# frozen dict not allowed as sharding object
|
||||
# params = jax.lax.with_sharding_constraint(params, unfreeze(model_named_sharding))
|
||||
# batch = jax.lax.with_sharding_constraint(batch, x_sharding)
|
||||
# labels = batch.pop("decoder_input_ids")
|
||||
# no use of labels here
|
||||
logits = state.apply_fn(
|
||||
{'params': params},
|
||||
input_ids=batch['input_ids'],
|
||||
attention_mask=batch['attention_mask'],
|
||||
decoder_input_ids=batch['decoder_input_ids'],
|
||||
decoder_attention_mask=batch['decoder_attention_mask'],
|
||||
)[0] # zero because output is some structure, where first is the logit
|
||||
# use labels here
|
||||
loss, num_labels = loss_fn(
|
||||
logits,
|
||||
batch["labels"],
|
||||
batch["decoder_attention_mask"],
|
||||
label_smoothing_factor)
|
||||
return loss, num_labels
|
||||
|
||||
# compute gradients through computational graph
|
||||
# allow values to pass through
|
||||
grad_fn = jax.value_and_grad(compute_loss, has_aux=True)
|
||||
(loss, num_labels), grad = grad_fn(state.params, batch)
|
||||
# num_labels = jax.lax.psum(num_labels, "batch")
|
||||
|
||||
|
||||
# true grad = total grad / total samples
|
||||
# needs to be in a singleton tuple for some reason
|
||||
# gathered_grad = gather_and_sum(grad, (unfreeze(model_named_sharding),))
|
||||
|
||||
# gathered_num_labels = gather_and_sum(num_labels, mesh_sharding(PartitionSpec()))
|
||||
|
||||
# summed_gradients = jax.tree.map(lambda x: jnp.sum(x)/gathered_num_labels, gathered_grad)
|
||||
# grad = jax.lax.psum(grad, "batch")
|
||||
# grad = jax.tree_util.tree_map(lambda x: x / num_labels, grad)
|
||||
|
||||
new_state = state.apply_gradients(grads=grad)
|
||||
with jax.named_scope("sync_metrics"):
|
||||
step_metrics = {"loss": loss, "learning_rate": linear_decay_lr_schedule_fn(state.step)}
|
||||
# step_metrics = jax.tree.map(
|
||||
# # previously needed lax.psum
|
||||
# # now just write single device code, let compiler handle
|
||||
# lambda x: jnp.mean(x), step_metrics
|
||||
# )
|
||||
|
||||
# if metrics is None:
|
||||
# metrics = step_metrics
|
||||
# else:
|
||||
# # combine all the synced metrics
|
||||
# metrics = jax.tree.map(jnp.mean, metrics, step_metrics)
|
||||
|
||||
|
||||
return new_state, step_metrics
|
||||
|
||||
|
||||
|
||||
|
||||
# %%
|
||||
# prep 1 step
|
||||
print("1 step for jit-ting")
|
||||
|
||||
|
||||
with mesh:
|
||||
state, metrics = train_step(initialized_state, batch)
|
||||
|
||||
|
||||
# %%
|
||||
|
||||
# %%
|
||||
# tr
|
||||
print("***** Running training *****")
|
||||
print(f" Num examples = {training_size}")
|
||||
print(f" Num Epochs = {num_epochs}")
|
||||
print(f" Instantaneous batch size per device = {per_device_train_batch_size}")
|
||||
print(f" Total train batch size (w. parallel & distributed) = {train_batch_size}")
|
||||
print(f" Total optimization steps = {total_train_steps}")
|
||||
|
||||
|
||||
# %%
|
||||
# jax.profiler.start_trace("./traces")
|
||||
|
||||
# function to shard a batch by treating it as a pytree
|
||||
def shard_batch(batch):
|
||||
# Shard each element in the dictionary (i.e., each key-value pair)
|
||||
return jax.tree_util.tree_map(
|
||||
lambda x: jax.device_put(x, x_sharding),
|
||||
batch
|
||||
)
|
||||
|
||||
|
||||
print("*" * 10)
|
||||
print("training start")
|
||||
rng, input_rng = jax.random.split(rng)
|
||||
train_time = 0
|
||||
epochs = tqdm(range(num_epochs), desc=f"Epoch ... (1/{num_epochs})", position=0)
|
||||
for epoch in epochs:
|
||||
train_start = time.time()
|
||||
|
||||
# Create sampling rng
|
||||
train_metrics = []
|
||||
steps_per_epoch = training_size // train_batch_size
|
||||
train_loader = dataprep.data_loader(rng, batch_size=batch_size, shuffle=True, drop_last=True)
|
||||
# Generate an epoch by shuffling sampling indices from the train dataset
|
||||
for _ in tqdm(range(steps_per_epoch), desc="Training...", position=1, leave=False):
|
||||
batch = next(train_loader)
|
||||
# send to device
|
||||
# batch = {key: jax.device_put(jnp.array(value, dtype=jnp.uint16), x_sharding) for key, value in batch.items()}
|
||||
# batch['input_ids']=jax.device_put(jnp.array(batch['input_ids'], dtype=jnp.int32), x_sharding)
|
||||
# batch['attention_mask']=jax.device_put(jnp.array(batch['attention_mask'], dtype=jnp.int32), x_sharding)
|
||||
# batch['decoder_input_ids']=jax.device_put(jnp.array(batch['decoder_input_ids'], dtype=jnp.int32), x_sharding)
|
||||
# batch['decoder_attention_mask']=jax.device_put(jnp.array(batch['decoder_attention_mask'], dtype=jnp.int32), x_sharding)
|
||||
sharded_batch = shard_batch(batch)
|
||||
with mesh:
|
||||
state, train_metric = train_step(state, sharded_batch)
|
||||
|
||||
# train_metrics.append(train_metric)
|
||||
|
||||
|
||||
# this is for more accurate time stats, but slows down training
|
||||
# train_metric['loss'].block_until_ready()
|
||||
train_time = time.time() - train_start
|
||||
|
||||
|
||||
|
||||
epochs.write(
|
||||
f"Epoch... ({epoch + 1}/{num_epochs} | "
|
||||
f"Loss: {train_metric['loss']}, "
|
||||
f"Learning Rate:{train_metric['learning_rate']}, "
|
||||
f"Last train time: {train_time})"
|
||||
)
|
||||
# jax.profiler.stop_trace()
|
||||
# %%
|
||||
# with mesh:
|
||||
# gathered_params = jax.jit(
|
||||
# lambda x: x,
|
||||
# in_shardings=(unfreeze(model_named_sharding),),
|
||||
# out_shardings=mesh_sharding(PartitionSpec())
|
||||
# )(state.params)
|
||||
|
||||
main_model = custom_model.from_pretrained('t5-base')
|
||||
output_dir = save_path
|
||||
# save checkpoint after each epoch and push checkpoint to the hub
|
||||
if jax.process_index() == 0:
|
||||
params = jax.tree_util.tree_map(lambda x: x.astype(jnp.float32), params)
|
||||
main_model.save_pretrained(output_dir, params=params)
|
||||
|
||||
# # stick to defaults
|
||||
# options = ocp.CheckpointManagerOptions()
|
||||
# with ocp.CheckpointManager(
|
||||
# ocp.test_utils.erase_and_create_empty(save_path),
|
||||
# options=options,
|
||||
# ) as mngr:
|
||||
#
|
||||
# mngr.save(0, args=ocp.args.StandardSave(state))
|
||||
# mngr.wait_until_finished()
|
||||
|
||||
# After providing `args` during an initial `save` or `restore` call, the
|
||||
# `CheckpointManager` instance records the type so that you do not need to
|
||||
# specify it again. If the `CheckpointManager` instance is not provided with a
|
||||
# `ocp.args.CheckpointArgs` instance for a particular item on a previous
|
||||
# occasion it cannot be restored without specifying the argument at restore
|
||||
# time.
|
||||
|
||||
# # In many cases, you can restore exactly as saved without specifying additional
|
||||
# # arguments.
|
||||
# mngr.restore(0)
|
||||
# # If customization of properties like sharding or dtype is desired, just provide
|
||||
# # the abstract target PyTree, the properties of which will be used to set
|
||||
# # the properties of the restored arrays.
|
||||
# mngr.restore(0, args=ocp.args.StandardRestore(abstract_pytree))
|
||||
|
||||
# %%
|
||||
|
|
@ -13,9 +13,12 @@
|
|||
# # prediction code
|
||||
# ## import and process test data
|
||||
|
||||
|
||||
# %%
|
||||
# import libraries
|
||||
import os
|
||||
|
||||
os.environ["CUDA_VISIBLE_DEVICES"] = "0,1,2,3"
|
||||
|
||||
import pandas as pd
|
||||
import matplotlib.pyplot as plt
|
||||
|
||||
|
|
@ -35,7 +38,7 @@ jax.config.update("jax_default_matmul_precision", "bfloat16")
|
|||
jax.config.update("jax_enable_x64", False)
|
||||
|
||||
|
||||
from transformers import FlaxAutoModelForSeq2SeqLM, AutoConfig
|
||||
# from transformers import FlaxAutoModelForSeq2SeqLM, AutoConfig
|
||||
|
||||
|
||||
import datasets
|
||||
|
|
@ -51,9 +54,13 @@ from flax.jax_utils import pad_shard_unpad, unreplicate
|
|||
from flax.training import train_state
|
||||
from flax.training.common_utils import get_metrics, onehot, shard, shard_prng_key
|
||||
|
||||
from ml_collections import ConfigDict
|
||||
|
||||
import time
|
||||
|
||||
from parallel.dataload import DataPrepare
|
||||
import orbax.checkpoint as ocp
|
||||
|
||||
|
||||
# %%
|
||||
|
||||
|
|
@ -86,121 +93,22 @@ def process_df(df):
|
|||
# takes 1 minute to run without batching
|
||||
test_dataset = Dataset.from_list(process_df(df))
|
||||
|
||||
|
||||
# %% [markdown]
|
||||
# ## Load model for attributes
|
||||
|
||||
# %%
|
||||
# load model
|
||||
model_name_or_path = "./t5_80_1_bf16" # Replace with your specific model name
|
||||
|
||||
# Load configuration
|
||||
config = AutoConfig.from_pretrained(model_name_or_path)
|
||||
|
||||
# Load model
|
||||
model = FlaxAutoModelForSeq2SeqLM.from_pretrained(
|
||||
pretrained_model_name_or_path=model_name_or_path
|
||||
)
|
||||
|
||||
|
||||
# %% [markdown]
|
||||
# ## Tokenizer
|
||||
|
||||
# %%
|
||||
# prepare tokenizer
|
||||
from transformers import T5TokenizerFast
|
||||
tokenizer = T5TokenizerFast.from_pretrained("t5-base", return_tensors="np", clean_up_tokenization_spaces=True)
|
||||
# Define additional special tokens
|
||||
additional_special_tokens = ["<THING_START>", "<THING_END>", "<PROPERTY_START>", "<PROPERTY_END>", "<NAME>", "<DESC>", "SIG", "UNIT", "DATA_TYPE"]
|
||||
# Add the additional special tokens to the tokenizer
|
||||
tokenizer.add_special_tokens({"additional_special_tokens": additional_special_tokens})
|
||||
|
||||
max_length = 86
|
||||
|
||||
model_module = __import__(model.__module__, fromlist=["shift_tokens_tight"])
|
||||
shift_tokens_right_fn = getattr(model_module, "shift_tokens_right")
|
||||
|
||||
# given a dataset entry, run it through the tokenizer
|
||||
# Setting padding="max_length" as we need fixed length inputs for jitted functions
|
||||
def preprocess_function(example):
|
||||
inputs = example['input']
|
||||
targets = example['output']
|
||||
# text_target sets the corresponding label to inputs
|
||||
# there is no need to create a separate 'labels'
|
||||
model_inputs = tokenizer(
|
||||
inputs,
|
||||
max_length=max_length,
|
||||
padding="max_length",
|
||||
truncation=True,
|
||||
return_tensors="np"
|
||||
)
|
||||
labels = tokenizer(
|
||||
text_target=targets,
|
||||
max_length=max_length,
|
||||
padding="max_length",
|
||||
truncation=True,
|
||||
return_tensors="np"
|
||||
)
|
||||
|
||||
model_inputs["labels"] = labels["input_ids"]
|
||||
decoder_input_ids = shift_tokens_right_fn(
|
||||
labels["input_ids"], config.pad_token_id, config.decoder_start_token_id
|
||||
)
|
||||
model_inputs["decoder_input_ids"] = np.asarray(decoder_input_ids)
|
||||
|
||||
# We need decoder_attention_mask so we can ignore pad tokens from loss
|
||||
model_inputs["decoder_attention_mask"] = labels["attention_mask"]
|
||||
|
||||
return model_inputs
|
||||
|
||||
# map maps function to each "row" in the dataset
|
||||
# aka the data in the immediate nesting
|
||||
test_dataset = test_dataset.map(
|
||||
preprocess_function,
|
||||
batched=True,
|
||||
num_proc=1,
|
||||
remove_columns=test_dataset.column_names,
|
||||
)
|
||||
|
||||
def data_loader(rng: jax.random.PRNGKey, dataset: Dataset, batch_size: int, shuffle: bool = False, drop_last=True):
|
||||
"""
|
||||
Returns batches of size `batch_size` from `dataset`. If `drop_last` is set to `False`, the final batch may be incomplete,
|
||||
and range in size from 1 to `batch_size`. Shuffle batches if `shuffle` is `True`.
|
||||
"""
|
||||
if shuffle:
|
||||
batch_idx = jax.random.permutation(rng, len(dataset))
|
||||
batch_idx = np.asarray(batch_idx)
|
||||
else:
|
||||
batch_idx = np.arange(len(dataset))
|
||||
|
||||
if drop_last:
|
||||
steps_per_epoch = len(dataset) // batch_size
|
||||
batch_idx = batch_idx[: steps_per_epoch * batch_size] # Skip incomplete batch.
|
||||
batch_idx = batch_idx.reshape((steps_per_epoch, batch_size))
|
||||
else:
|
||||
steps_per_epoch = math.ceil(len(dataset) / batch_size)
|
||||
batch_idx = np.array_split(batch_idx, steps_per_epoch)
|
||||
|
||||
for idx in batch_idx:
|
||||
batch = dataset[idx]
|
||||
batch = {k: np.array(v) for k, v in batch.items()}
|
||||
|
||||
yield batch
|
||||
|
||||
# %% [markdown]
|
||||
# # model generation
|
||||
# from t5_model.modeling_t5_flax import FlaxT5ForConditionalGeneration
|
||||
from transformers import FlaxT5ForConditionalGeneration
|
||||
# model_name_or_path = "./t5_80_1" # Replace with your specific model name
|
||||
model_name_or_path = "./model_checkpoints/simple_test" # Replace with your specific model name
|
||||
model = FlaxT5ForConditionalGeneration.from_pretrained(model_name_or_path)
|
||||
params = model.params
|
||||
|
||||
# %%
|
||||
seed = 117
|
||||
num_epochs = 80
|
||||
batch_size = 96
|
||||
num_train_epochs = num_epochs
|
||||
batch_size = 128
|
||||
per_device_train_batch_size = batch_size
|
||||
train_batch_size = per_device_train_batch_size * jax.device_count()
|
||||
per_device_eval_batch_size = batch_size
|
||||
eval_batch_size = per_device_eval_batch_size * jax.device_count()
|
||||
steps_per_epoch = len(test_dataset) // train_batch_size
|
||||
total_train_steps = steps_per_epoch * num_epochs
|
||||
|
||||
num_beams = 1
|
||||
val_max_target_length = 128
|
||||
|
|
@ -208,33 +116,31 @@ val_max_target_length = 128
|
|||
predict_with_generate = True
|
||||
|
||||
|
||||
# Initialize our training
|
||||
# Initialize our prediction
|
||||
rng = jax.random.PRNGKey(seed)
|
||||
rng, dropout_rng = jax.random.split(rng)
|
||||
|
||||
|
||||
# %%
|
||||
|
||||
# reload model to prevent leakage of variables
|
||||
# load model
|
||||
model_name_or_path = "t5_80_1" # Replace with your specific model name
|
||||
|
||||
# Load configuration
|
||||
config = AutoConfig.from_pretrained(model_name_or_path)
|
||||
|
||||
# Load model
|
||||
model = FlaxAutoModelForSeq2SeqLM.from_pretrained(
|
||||
model_name_or_path
|
||||
print("preparing data")
|
||||
data_config = ConfigDict(
|
||||
dict(
|
||||
max_length=128,
|
||||
pad_token_id=0,
|
||||
decoder_start_token_id=0
|
||||
)
|
||||
)
|
||||
|
||||
dataprep = DataPrepare(test_dataset, data_config)
|
||||
# # example usage
|
||||
# # %%
|
||||
seed = 117
|
||||
rng = jax.random.PRNGKey(seed)
|
||||
|
||||
|
||||
# %%
|
||||
# Ensure model.params is properly initialized (this is just an example)
|
||||
# Normally you would get this from a model initialization call with dummy input
|
||||
params = model.params
|
||||
# ensure full size floats
|
||||
params_f16 = jax.tree_util.tree_map(lambda x: x.astype(jnp.float32), params)
|
||||
# we need to replicate model over devices
|
||||
replicated_params = jax.device_put_replicated(params_f16, jax.devices())
|
||||
replicated_params = jax.device_put_replicated(params, jax.devices())
|
||||
|
||||
|
||||
# Define generation function
|
||||
|
|
@ -245,25 +151,29 @@ num_beams = num_beams if num_beams is not None else model.config.num_beams
|
|||
gen_kwargs = {"max_length": max_length, "num_beams": num_beams}
|
||||
|
||||
def generate_step(params, batch):
|
||||
output_ids = model.generate(batch["input_ids"], attention_mask=batch["attention_mask"], params=params, **gen_kwargs)
|
||||
output_ids = model.generate(
|
||||
batch["input_ids"],
|
||||
attention_mask=batch["attention_mask"],
|
||||
params=params,
|
||||
**gen_kwargs)
|
||||
return output_ids.sequences
|
||||
|
||||
# Create parallel version of the train and eval step
|
||||
p_generate_step = jax.pmap(generate_step, "batch")
|
||||
|
||||
|
||||
|
||||
pred_generations = []
|
||||
pred_labels = []
|
||||
decoder_input_list = []
|
||||
|
||||
rng, input_rng = jax.random.split(rng)
|
||||
|
||||
pred_loader = data_loader(input_rng, test_dataset, eval_batch_size, drop_last=False)
|
||||
|
||||
pred_loader = dataprep.data_loader(input_rng, batch_size=batch_size, shuffle=False, drop_last=False)
|
||||
pred_steps = math.ceil(len(test_dataset) / eval_batch_size)
|
||||
|
||||
print("***** Running training *****")
|
||||
print(f" Num examples = {len(test_dataset)}")
|
||||
print(f" Num steps = {num_epochs}")
|
||||
# print(f" Num steps = {num_epochs}")
|
||||
print(f" Instantaneous batch size per device = {per_device_train_batch_size}")
|
||||
print(f" Total test batch size (w. parallel & distributed) = {train_batch_size}")
|
||||
|
||||
|
|
@ -272,26 +182,38 @@ for _ in tqdm(range(pred_steps), desc="Predicting..."):
|
|||
# Model forward
|
||||
batch = next(pred_loader)
|
||||
labels = batch["labels"]
|
||||
decoder_input = batch["decoder_input_ids"]
|
||||
|
||||
|
||||
# generation
|
||||
generated_ids = pad_shard_unpad(p_generate_step)(replicated_params, batch)
|
||||
pred_generations.extend(jax.device_get(generated_ids.reshape(-1, gen_kwargs["max_length"])))
|
||||
pred_labels.extend(labels)
|
||||
decoder_input_list.extend(decoder_input)
|
||||
|
||||
|
||||
|
||||
# %%
|
||||
|
||||
# %% [markdown]
|
||||
# # process predictions
|
||||
from transformers import T5TokenizerFast
|
||||
tokenizer = T5TokenizerFast.from_pretrained("t5-base", return_tensors="np", clean_up_tokenization_spaces=False)
|
||||
# Define additional special tokens
|
||||
additional_special_tokens = ["<THING_START>", "<THING_END>", "<PROPERTY_START>", "<PROPERTY_END>", "<NAME>", "<DESC>", "<SIG>", "<UNIT>", "<DATA_TYPE>"]
|
||||
# Add the additional special tokens to the tokenizer
|
||||
tokenizer.add_special_tokens({"additional_special_tokens": additional_special_tokens})
|
||||
|
||||
|
||||
|
||||
# %%
|
||||
# code to get special token ids
|
||||
# sentence = "<THING_START><THING_END><PROPERTY_START><PROPERTY_END><NAME><DESC><DESC><UNIT>"
|
||||
# tokens = tokenizer.tokenize(sentence)
|
||||
# print("Tokens:", tokens)
|
||||
# # Get the IDs (integer indices) of specific tokens
|
||||
# token_ids = [tokenizer.convert_tokens_to_ids(token) for token in tokens]
|
||||
# print("Token IDs:", token_ids)
|
||||
sentence = "<THING_START><THING_END><PROPERTY_START><PROPERTY_END><NAME><DESC><DESC><UNIT><SIG><UNIT><DATA_TYPE>"
|
||||
tokens = tokenizer.tokenize(sentence)
|
||||
print("Tokens:", tokens)
|
||||
# Get the IDs (integer indices) of specific tokens
|
||||
token_ids = [tokenizer.convert_tokens_to_ids(token) for token in tokens]
|
||||
print("Token IDs:", token_ids)
|
||||
|
||||
|
||||
# %%
|
||||
|
|
@ -304,7 +226,13 @@ def extract_seq(tokens, start_value, end_value):
|
|||
|
||||
return tokens[start_id+1:end_id]
|
||||
|
||||
# %%
|
||||
i = 2
|
||||
print(pred_generations[i])
|
||||
print(extract_seq(pred_generations[i], 32100, 32101))
|
||||
|
||||
|
||||
# %%
|
||||
def process_tensor_output(tokens):
|
||||
thing_seq = extract_seq(tokens, 32100, 32101) # 32100 = <THING_START>, 32101 = <THING_END>
|
||||
property_seq = extract_seq(tokens, 32102, 32103) # 32102 = <PROPERTY_START>, 32103 = <PROPERTY_END>
|
||||
|
|
|
|||
|
|
@ -0,0 +1,543 @@
|
|||
# %%
|
||||
import os
|
||||
# Set this to True to run the model on CPU only.
|
||||
USE_CPU_ONLY = False
|
||||
|
||||
flags = os.environ.get("XLA_FLAGS", "")
|
||||
if USE_CPU_ONLY:
|
||||
flags += " --xla_force_host_platform_device_count=4" # Simulate 8 devices
|
||||
# Enforce CPU-only execution
|
||||
os.environ["CUDA_VISIBLE_DEVICES"] = ""
|
||||
os.environ["JAX_PLATFORMS"] = "cpu"
|
||||
else:
|
||||
# GPU flags
|
||||
flags = (
|
||||
'--xla_gpu_enable_triton_softmax_fusion=true '
|
||||
'--xla_gpu_triton_gemm_any=True '
|
||||
# '--xla_gpu_enable_async_collectives=true '
|
||||
'--xla_gpu_enable_latency_hiding_scheduler=true '
|
||||
'--xla_gpu_enable_highest_priority_async_stream=true '
|
||||
)
|
||||
os.environ["CUDA_VISIBLE_DEVICES"] = "0,1,2,3"
|
||||
|
||||
os.environ["XLA_FLAGS"] = flags
|
||||
os.environ.update({
|
||||
"TOKENIZERS_PARALLELISM" : "false",
|
||||
"CUDA_DEVICE_MAX_CONNECTIONS" : "1",
|
||||
"NCCL_LL128_BUFFSIZE": "-2",
|
||||
"NCCL_LL_BUFFSIZE": "-2",
|
||||
"NCCL_PROTO": "SIMPLE,LL,LL128",
|
||||
"XLA_PYTHON_CLIENT_MEM_FRACTION" : "0.90",
|
||||
# "XLA_PYTHON_CLIENT_PREALLOCATE" : "false"
|
||||
})
|
||||
|
||||
|
||||
|
||||
|
||||
import functools
|
||||
from functools import partial
|
||||
from pprint import pprint
|
||||
from typing import Any, Dict, Tuple, Callable, Sequence, Dict, Union
|
||||
|
||||
import flax.linen as nn
|
||||
import jax
|
||||
import jax.numpy as jnp
|
||||
import numpy as np
|
||||
from jax.experimental.shard_map import shard_map
|
||||
from jax.sharding import Mesh, NamedSharding
|
||||
# from jax.experimental.pjit import pjit # superseded by jax.jit
|
||||
from jax.experimental import mesh_utils
|
||||
from jax.sharding import PartitionSpec
|
||||
from ml_collections import ConfigDict
|
||||
import optax
|
||||
import logging
|
||||
import time
|
||||
from datasets import Dataset, load_from_disk
|
||||
|
||||
from flax import jax_utils, traverse_util
|
||||
from flax.training import train_state
|
||||
from flax.training.common_utils import get_metrics, onehot, shard, shard_prng_key
|
||||
from flax.core.frozen_dict import freeze, unfreeze, FrozenDict
|
||||
import flax.core
|
||||
|
||||
# model checkpointing and saving utilities
|
||||
from flax import linen as nn
|
||||
from flax.training import checkpoints, train_state
|
||||
from flax import struct, serialization
|
||||
|
||||
from parallel.partitions import set_partitions
|
||||
|
||||
from tqdm import tqdm
|
||||
|
||||
from parallel.dataload import DataPrepare
|
||||
|
||||
# for memory tracking
|
||||
# from jax_smi import initialise_tracking
|
||||
# initialise_tracking()
|
||||
|
||||
|
||||
PyTree = Any
|
||||
Metrics = Dict[str, Tuple[jax.Array, ...]]
|
||||
|
||||
if USE_CPU_ONLY:
|
||||
jax.config.update('jax_platform_name', 'cpu')
|
||||
else:
|
||||
jax.config.update("jax_default_matmul_precision", "bfloat16")
|
||||
|
||||
jax.config.update("jax_compilation_cache_dir", "/tmp/jax_cache")
|
||||
jax.config.update("jax_persistent_cache_min_entry_size_bytes", -1)
|
||||
jax.config.update("jax_persistent_cache_min_compile_time_secs", 0)
|
||||
|
||||
|
||||
|
||||
|
||||
# %%
|
||||
## get platform type
|
||||
from jax.extend.backend import get_backend
|
||||
print(get_backend().platform)
|
||||
print(jax.devices())
|
||||
|
||||
# %%
|
||||
# config options
|
||||
file_path = '/home/richard/Projects/learn_t5/simple_model/combined_data_t5_retrieval/'
|
||||
save_path = '/home/richard/Projects/06_research/jax_models/model_checkpoints/simple_test/'
|
||||
# file_path = 'combined_data'
|
||||
split_datasets = load_from_disk(file_path)
|
||||
training_size = len(split_datasets['train'])
|
||||
# Store some constant
|
||||
seed = 117
|
||||
num_epochs = 5
|
||||
batch_size = 64
|
||||
num_train_epochs = num_epochs
|
||||
per_device_train_batch_size = batch_size
|
||||
train_batch_size = per_device_train_batch_size * jax.device_count()
|
||||
per_device_eval_batch_size = batch_size
|
||||
eval_batch_size = per_device_eval_batch_size * jax.device_count()
|
||||
steps_per_epoch = training_size // train_batch_size
|
||||
total_train_steps = steps_per_epoch * num_epochs
|
||||
|
||||
warmup_steps = 0
|
||||
learning_rate = 5e-5
|
||||
|
||||
weight_decay = 0.01
|
||||
adam_beta1 = 0.9
|
||||
adam_beta2 = 0.999
|
||||
adam_epsilon = 1e-8
|
||||
label_smoothing_factor = 0.0
|
||||
num_beams = 1
|
||||
val_max_target_length = 128
|
||||
predict_with_generate = True
|
||||
|
||||
|
||||
# %%
|
||||
# prepare data
|
||||
# init object
|
||||
# e.g. Config
|
||||
print("preparing data")
|
||||
data_config = ConfigDict(
|
||||
dict(
|
||||
max_length=128,
|
||||
pad_token_id=0,
|
||||
decoder_start_token_id=0
|
||||
)
|
||||
)
|
||||
|
||||
dataprep = DataPrepare(split_datasets['train'], data_config)
|
||||
# # example usage
|
||||
# # %%
|
||||
seed = 117
|
||||
rng = jax.random.PRNGKey(seed)
|
||||
train_loader = dataprep.data_loader(rng, batch_size=batch_size)
|
||||
batch = next(iter(train_loader))
|
||||
|
||||
# %%
|
||||
# from t5_model.configuration_t5 import FrozenT5Config as T5ConfigCustom
|
||||
from t5_model.modeling_t5_flax import FlaxT5ForConditionalGeneration as custom_model
|
||||
main_model = custom_model.from_pretrained(
|
||||
"t5-base",
|
||||
dtype=jnp.bfloat16,
|
||||
gradient_checkpointing=True,
|
||||
)
|
||||
params = main_model.params
|
||||
# pretrained_params = model.params
|
||||
model = main_model.module
|
||||
|
||||
# %%
|
||||
# # testing config hashability
|
||||
# # some explanation:
|
||||
# # The PreTrainedModel class loads a T5Config model that is not hashable because
|
||||
# # it is a complicated class that pretends to be a dataclass.
|
||||
# # The solution is to extract a dict from it, then make a ConfigDict from
|
||||
# # ml_collections library so that we can get values via the "." operator.
|
||||
# # also, we can switch between FrozenConfigDict and ConfigDict, allowing us to
|
||||
# # modify the config before passing to the next layer
|
||||
# from transformers import T5Config
|
||||
# from t5_model.configuration_t5 import FrozenT5Config
|
||||
# from ml_collections import ConfigDict, FrozenConfigDict
|
||||
#
|
||||
# config = T5Config.from_pretrained("t5-base").to_dict()
|
||||
# config.pop('architectures')
|
||||
# config.pop('id2label')
|
||||
# # test if it works
|
||||
# frozen_config = FrozenConfigDict(config)
|
||||
# # test hash
|
||||
# hash(frozen_config)
|
||||
|
||||
# %%
|
||||
# # print model
|
||||
# rng, input_rng = jax.random.split(rng)
|
||||
# model.tabulate(
|
||||
# input_rng,
|
||||
# input_ids=batch['input_ids'],
|
||||
# attention_mask=batch['attention_mask'],
|
||||
# decoder_input_ids=batch['decoder_input_ids'],
|
||||
# decoder_attention_mask=batch['decoder_attention_mask'],
|
||||
# console_kwargs={"force_jupyter": True}
|
||||
# )
|
||||
|
||||
|
||||
|
||||
# %%
|
||||
# create mesh
|
||||
print("creating mesh")
|
||||
device_mesh = mesh_utils.create_device_mesh((2,2))
|
||||
print(device_mesh)
|
||||
|
||||
mesh = Mesh(devices=device_mesh, axis_names=('data', 'model'))
|
||||
print(mesh)
|
||||
|
||||
def mesh_sharding(pspec: PartitionSpec) -> NamedSharding:
|
||||
return NamedSharding(mesh, pspec, memory_kind="device")
|
||||
|
||||
x_sharding = mesh_sharding(PartitionSpec('data', None)) # replicate across data axis
|
||||
model_sharding=mesh_sharding(PartitionSpec(None, 'model'))
|
||||
|
||||
|
||||
# %%
|
||||
# optimizers
|
||||
|
||||
def create_learning_rate_fn(
|
||||
train_ds_size: int, train_batch_size: int, num_train_epochs: int, num_warmup_steps: int, learning_rate: float
|
||||
) -> Callable[[int], jnp.ndarray]:
|
||||
"""Returns a linear warmup, linear_decay learning rate function."""
|
||||
steps_per_epoch = train_ds_size // train_batch_size
|
||||
num_train_steps = steps_per_epoch * num_train_epochs
|
||||
warmup_fn = optax.linear_schedule(init_value=0.0, end_value=learning_rate, transition_steps=num_warmup_steps)
|
||||
decay_fn = optax.linear_schedule(
|
||||
init_value=learning_rate, end_value=0, transition_steps=num_train_steps - num_warmup_steps
|
||||
)
|
||||
schedule_fn = optax.join_schedules(schedules=[warmup_fn, decay_fn], boundaries=[num_warmup_steps])
|
||||
return schedule_fn
|
||||
|
||||
|
||||
# Create learning rate schedule
|
||||
linear_decay_lr_schedule_fn = create_learning_rate_fn(
|
||||
training_size,
|
||||
train_batch_size,
|
||||
num_train_epochs,
|
||||
warmup_steps,
|
||||
learning_rate,
|
||||
)
|
||||
|
||||
# We use Optax's "masking" functionality to not apply weight decay
|
||||
# to bias and LayerNorm scale parameters. decay_mask_fn returns a
|
||||
# mask boolean with the same structure as the parameters.
|
||||
# The mask is True for parameters that should be decayed.
|
||||
def decay_mask_fn(params):
|
||||
flat_params = traverse_util.flatten_dict(params)
|
||||
# find out all LayerNorm parameters
|
||||
layer_norm_candidates = ["layernorm", "layer_norm", "ln"]
|
||||
layer_norm_named_params = {
|
||||
layer[-2:]
|
||||
for layer_norm_name in layer_norm_candidates
|
||||
for layer in flat_params.keys()
|
||||
if layer_norm_name in "".join(layer).lower()
|
||||
}
|
||||
flat_mask = {path: (path[-1] != "bias" and path[-2:] not in layer_norm_named_params) for path in flat_params}
|
||||
return traverse_util.unflatten_dict(flat_mask)
|
||||
|
||||
# create adam optimizer
|
||||
adamw = optax.adamw(
|
||||
learning_rate=linear_decay_lr_schedule_fn,
|
||||
b1=adam_beta1,
|
||||
b2=adam_beta2,
|
||||
eps=adam_epsilon,
|
||||
weight_decay=weight_decay,
|
||||
mask=decay_mask_fn,
|
||||
)
|
||||
|
||||
# %%
|
||||
|
||||
print("compile")
|
||||
|
||||
# enable bf16
|
||||
# enable only for dense, some transformer sections, and shared
|
||||
def create_mask_for_layer_norm(params):
|
||||
flat_params = traverse_util.flatten_dict(params)
|
||||
mask = {
|
||||
# path: not (
|
||||
# (path[-2] == "layer_norm" and path[-1] == "weight") or
|
||||
# (path[-2] == "final_layer_norm" and path[-1] == "weight") or
|
||||
# (path[-2] == "o" and path[-1] == "kernel")
|
||||
# )
|
||||
# for path in flat_params
|
||||
path: (
|
||||
(path[-2] == "wi" and path[-1] == "weight") or
|
||||
(path[-2] == "wo" and path[-1] == "weight") or
|
||||
(path[-2] == "k" and path[-1] == "kernel") or
|
||||
(path[-2] == "q" and path[-1] == "kernel") or
|
||||
(path[-2] == "v" and path[-1] == "kernel") or
|
||||
(path[-2] == "shared" and path[-1] == "embedding")
|
||||
) for path in flat_params
|
||||
}
|
||||
mask = traverse_util.unflatten_dict(mask)
|
||||
return mask
|
||||
|
||||
# borrowed from transformers modeling_flax_utils
|
||||
def cast_floating_to(params: Union[Dict, FrozenDict], dtype: jnp.dtype, mask: Any = None) -> Any:
|
||||
"""
|
||||
Helper method to cast floating-point values of given parameter `PyTree` to given `dtype`.
|
||||
"""
|
||||
|
||||
# taken from https://github.com/deepmind/jmp/blob/3a8318abc3292be38582794dbf7b094e6583b192/jmp/_src/policy.py#L27
|
||||
def conditional_cast(param):
|
||||
if isinstance(param, jnp.ndarray) and jnp.issubdtype(param.dtype, jnp.floating):
|
||||
param = param.astype(dtype)
|
||||
return param
|
||||
|
||||
if mask is None:
|
||||
return jax.tree_util.tree_map(conditional_cast, params)
|
||||
|
||||
flat_params = traverse_util.flatten_dict(params)
|
||||
flat_mask, _ = jax.tree_util.tree_flatten(mask)
|
||||
|
||||
for masked, key in zip(flat_mask, sorted(flat_params.keys())):
|
||||
if masked:
|
||||
flat_params[key] = conditional_cast(flat_params[key])
|
||||
|
||||
return traverse_util.unflatten_dict(flat_params)
|
||||
|
||||
# create init_fn to produce sharded state
|
||||
def init_fn(params, model, optimizer):
|
||||
# do be careful with the model init
|
||||
# imported models might have complicated init methods
|
||||
|
||||
# mask = create_mask_for_layer_norm(params)
|
||||
# override params with bfloat version
|
||||
# params= cast_floating_to(params, jnp.bfloat16, mask)
|
||||
|
||||
state = train_state.TrainState.create( # Create a `TrainState`.
|
||||
apply_fn=model.apply,
|
||||
params=params,
|
||||
tx=optimizer)
|
||||
return state
|
||||
|
||||
|
||||
abstract_variables = jax.eval_shape(
|
||||
functools.partial(init_fn, model=model, optimizer=adamw), params)
|
||||
|
||||
# jax.sharding: describes how a jax.Array is laid out across devices
|
||||
state_sharding = nn.get_sharding(abstract_variables, mesh)
|
||||
# print(state_sharding)
|
||||
|
||||
# %%
|
||||
|
||||
# replace the params tree with the new modified tree
|
||||
# create partitions for model
|
||||
from parallel.partitions import set_partitions
|
||||
# set_partitions freezes the params on return
|
||||
model_part_spec = set_partitions(unfreeze(params))
|
||||
# p is already a partition spec
|
||||
model_named_sharding = jax.tree.map(lambda p: mesh_sharding(p), model_part_spec)
|
||||
|
||||
# get pspec for opt_state
|
||||
def get_opt_spec(x):
|
||||
if isinstance(x, dict):
|
||||
return unfreeze(model_named_sharding)
|
||||
# return an empty partspec
|
||||
return mesh_sharding((PartitionSpec()))
|
||||
|
||||
# this function replaces the empty model params spec with the 'model_named_shard'
|
||||
state_sharding = jax.tree.map(
|
||||
get_opt_spec, state_sharding, is_leaf=lambda x: isinstance(x, (dict, optax.EmptyState))
|
||||
)
|
||||
|
||||
|
||||
|
||||
jit_init_fn = jax.jit(
|
||||
init_fn,
|
||||
static_argnames=('model', 'optimizer'), # skip model and optimizer
|
||||
in_shardings=mesh_sharding(PartitionSpec()), # we don't shard params explicitly
|
||||
out_shardings=state_sharding # but returned initialized_state is sharded
|
||||
)
|
||||
initialized_state = jit_init_fn(params, model, adamw)
|
||||
|
||||
# %%
|
||||
# train step
|
||||
def loss_fn(logits, labels, padding_mask, label_smoothing_factor=0.0):
|
||||
"""
|
||||
The label smoothing implementation is adapted from Flax's official example:
|
||||
https://github.com/google/flax/blob/87a211135c6a377c8f29048a1cac3840e38b9da4/examples/wmt/train.py#L104
|
||||
"""
|
||||
vocab_size = logits.shape[-1]
|
||||
confidence = 1.0 - label_smoothing_factor
|
||||
low_confidence = (1.0 - confidence) / (vocab_size - 1)
|
||||
normalizing_constant = -(
|
||||
confidence * jnp.log(confidence) + (vocab_size - 1) * low_confidence * jnp.log(low_confidence + 1e-20)
|
||||
)
|
||||
soft_labels = onehot(labels, vocab_size, on_value=confidence, off_value=low_confidence)
|
||||
logits = jnp.asarray(logits, dtype=jnp.float32)
|
||||
logits = logits.astype(jnp.float32)
|
||||
soft_labels = soft_labels.astype(jnp.float32)
|
||||
loss = optax.softmax_cross_entropy(logits, soft_labels)
|
||||
loss = loss - normalizing_constant
|
||||
|
||||
# ignore padded tokens from loss
|
||||
loss = loss * padding_mask
|
||||
loss = loss.mean()
|
||||
# num_labels = padding_mask.mean()
|
||||
return loss # , num_labels
|
||||
|
||||
# %%
|
||||
|
||||
# single device code annotated with jax.jit
|
||||
@functools.partial(
|
||||
jax.jit,
|
||||
# state is state_sharding initialized from init_fn
|
||||
# x_sharding is data sharded explicitly later
|
||||
in_shardings=(state_sharding, x_sharding),
|
||||
out_shardings=(state_sharding, mesh_sharding(PartitionSpec())),
|
||||
donate_argnames=('state'),
|
||||
)
|
||||
def train_step(state, batch):
|
||||
|
||||
label_smoothing_factor=0.0
|
||||
# dropout_rng, new_dropout_rng = jax.random.split(state.dropout_rng)
|
||||
def compute_loss(params, batch):
|
||||
# check constraints
|
||||
# frozen dict not allowed as sharding object
|
||||
params = jax.lax.with_sharding_constraint(params, unfreeze(model_named_sharding))
|
||||
batch = jax.lax.with_sharding_constraint(batch, x_sharding)
|
||||
logits = state.apply_fn(
|
||||
{'params': params},
|
||||
input_ids=batch['input_ids'],
|
||||
attention_mask=batch['attention_mask'],
|
||||
decoder_input_ids=batch['decoder_input_ids'],
|
||||
decoder_attention_mask=batch['decoder_attention_mask'],
|
||||
)[0] # zero because output is some structure, where first is the logit
|
||||
# use labels here
|
||||
# loss, num_labels = loss_fn(
|
||||
loss = loss_fn(
|
||||
logits,
|
||||
batch["labels"],
|
||||
batch["decoder_attention_mask"],
|
||||
label_smoothing_factor)
|
||||
return loss # , num_labels
|
||||
|
||||
# compute gradients through computational graph
|
||||
# allow values to pass through
|
||||
grad_fn = jax.value_and_grad(compute_loss, has_aux=False)
|
||||
(loss), grad = grad_fn(state.params, batch)
|
||||
# num_labels = jax.lax.psum(num_labels, "batch")
|
||||
|
||||
|
||||
new_state = state.apply_gradients(grads=grad)
|
||||
with jax.named_scope("sync_metrics"):
|
||||
step_metrics = {"loss": loss, "learning_rate": linear_decay_lr_schedule_fn(state.step)}
|
||||
|
||||
return new_state, step_metrics
|
||||
|
||||
# %%
|
||||
# explore data sharding
|
||||
sharded_batch = next(iter(train_loader))
|
||||
sharded_batch = jax.device_put(sharded_batch, x_sharding)
|
||||
# jax.debug.visualize_array_sharding(sharded_batch['input_ids'])
|
||||
# jax.debug.visualize_array_sharding(initialized_state.params['shared']['embedding'])
|
||||
|
||||
|
||||
# %%
|
||||
# # prep 1 step
|
||||
# print("1 step for jit-ting")
|
||||
# with mesh:
|
||||
# state, metrics = train_step(initialized_state, sharded_batch)
|
||||
|
||||
# %%
|
||||
|
||||
# %%
|
||||
# tr
|
||||
print("***** Running training *****")
|
||||
print(f" Num examples = {training_size}")
|
||||
print(f" Num Epochs = {num_epochs}")
|
||||
print(f" Instantaneous batch size per device = {per_device_train_batch_size}")
|
||||
print(f" Total train batch size (w. parallel & distributed) = {train_batch_size}")
|
||||
print(f" Total optimization steps = {total_train_steps}")
|
||||
|
||||
|
||||
# %%
|
||||
# jax.profiler.start_trace("./traces")
|
||||
|
||||
|
||||
print("*" * 10)
|
||||
print("training start")
|
||||
rng, input_rng = jax.random.split(rng)
|
||||
train_time = 0
|
||||
state = initialized_state
|
||||
epochs = tqdm(range(num_epochs), desc=f"Epoch ... (1/{num_epochs})", position=0)
|
||||
for epoch in epochs:
|
||||
train_start = time.time()
|
||||
|
||||
# Create sampling rng
|
||||
train_metrics = []
|
||||
steps_per_epoch = training_size // train_batch_size
|
||||
train_loader = dataprep.data_loader(rng, batch_size=batch_size, shuffle=True, drop_last=True)
|
||||
# Generate an epoch by shuffling sampling indices from the train dataset
|
||||
for _ in tqdm(range(steps_per_epoch), desc="Training...", position=1, leave=False):
|
||||
batch = next(train_loader)
|
||||
batch = jax.device_put(batch, x_sharding)
|
||||
with mesh:
|
||||
state, train_metric = train_step(state, batch)
|
||||
|
||||
# train_metrics.append(train_metric)
|
||||
|
||||
|
||||
# this is for more accurate time stats, but slows down training
|
||||
# train_metric['loss'].block_until_ready()
|
||||
train_time = time.time() - train_start
|
||||
|
||||
|
||||
|
||||
epochs.write(
|
||||
f"Epoch... ({epoch + 1}/{num_epochs} | "
|
||||
f"Loss: {train_metric['loss']}, "
|
||||
f"Learning Rate:{train_metric['learning_rate']}, "
|
||||
f"Last train time: {train_time})"
|
||||
)
|
||||
# jax.profiler.stop_trace()
|
||||
|
||||
# %%
|
||||
# try out
|
||||
gather_state = jax.device_get(state)
|
||||
gather_batch = jax.device_get(batch)
|
||||
logits = gather_state.apply_fn(
|
||||
{'params': gather_state.params},
|
||||
input_ids=gather_batch['input_ids'],
|
||||
attention_mask=gather_batch['attention_mask'],
|
||||
decoder_input_ids=gather_batch['decoder_input_ids'],
|
||||
decoder_attention_mask=gather_batch['decoder_attention_mask'],
|
||||
)[0] # zero because output is some structure, where first is the logit
|
||||
|
||||
probs = nn.softmax(logits, axis=-1)
|
||||
predicted = jnp.argmax(probs, axis=-1)
|
||||
predicted[1]
|
||||
|
||||
# %%
|
||||
main_model = custom_model.from_pretrained('t5-base')
|
||||
output_dir = save_path
|
||||
|
||||
# save checkpoint after each epoch and push checkpoint to the hub
|
||||
if jax.process_index() == 0:
|
||||
params = jax.device_get(state.params)
|
||||
main_model.save_pretrained(output_dir, params=params)
|
||||
|
||||
|
||||
# %%
|
||||
|
|
@ -0,0 +1,360 @@
|
|||
|
||||
# ---
|
||||
# jupyter:
|
||||
# jupytext:
|
||||
# formats: ipynb,py:percent
|
||||
# text_representation:
|
||||
# extension: .py
|
||||
# format_name: percent
|
||||
# format_version: '1.3'
|
||||
# jupytext_version: 1.16.4
|
||||
# ---
|
||||
|
||||
# %% [markdown]
|
||||
# # prediction code
|
||||
# ## import and process test data
|
||||
|
||||
|
||||
# %%
|
||||
# import libraries
|
||||
import pandas as pd
|
||||
import matplotlib.pyplot as plt
|
||||
|
||||
from datasets import Dataset, DatasetDict
|
||||
|
||||
import jax
|
||||
import jax.numpy as jnp
|
||||
import optax
|
||||
import numpy as np
|
||||
from functools import partial
|
||||
from typing import Callable, Optional
|
||||
import math
|
||||
|
||||
# jax.config.update("jax_default_matmul_precision", "tensorfloat32")
|
||||
jax.config.update("jax_default_matmul_precision", "high")
|
||||
|
||||
jax.config.update("jax_enable_x64", False)
|
||||
|
||||
|
||||
from transformers import FlaxAutoModelForSeq2SeqLM, AutoConfig
|
||||
|
||||
|
||||
import datasets
|
||||
from datasets import Dataset
|
||||
import evaluate
|
||||
from tqdm import tqdm
|
||||
|
||||
|
||||
import nltk # Here to have a nice missing dependency error message early on
|
||||
|
||||
from flax import jax_utils, traverse_util
|
||||
from flax.jax_utils import pad_shard_unpad, unreplicate
|
||||
from flax.training import train_state
|
||||
from flax.training.common_utils import get_metrics, onehot, shard, shard_prng_key
|
||||
|
||||
|
||||
import time
|
||||
|
||||
|
||||
# %%
|
||||
|
||||
# data_path = f"../make_data/select_db/data_mapping_filtered.csv"
|
||||
# data_path = f"../make_data_2/select_db/dataset/1/train_all.csv"
|
||||
data_path = f'/home/richard/Projects/06_research/hipom_data_mapping/data_preprocess/dataset/1/test.csv'
|
||||
# data_path = f'/home/richard/Projects/06_research/hipom_data_mapping/data_preprocess/dataset/1/train_all.csv'
|
||||
|
||||
# Ensure to include 'ships_idx' in the fields list
|
||||
fields = ['ships_idx', 'tag_name', 'tag_description', 'thing', 'property', 'unit']
|
||||
|
||||
# Load the dataset
|
||||
df = pd.read_csv(data_path, skipinitialspace=True, usecols=fields)
|
||||
|
||||
def process_df(df):
|
||||
output_list = [{
|
||||
'input': f"<NAME>{row['tag_name']}<NAME><DESC>{row['tag_description']}<DESC>",
|
||||
# 'input': f"<DESC>{row['tag_description']}<DESC>",
|
||||
# 'input': f"<NAME>{row['tag_name']}<NAME><DESC>{row['tag_description']}<DESC><UNIT>{row['unit']}<UNIT>",
|
||||
# 'input': f"<DESC>{row['tag_description']}<DESC><UNIT>{row['unit']}<UNIT>",
|
||||
'output': f"<THING_START>{row['thing']}<THING_END><PROPERTY_START>{row['property']}<PROPERTY_END>",
|
||||
# 'answer': f"{row['thing']} {row['property']}",
|
||||
# 'answer_thing': row['thing'],
|
||||
# 'answer_property': row['property'],
|
||||
} for _, row in df.iterrows()]
|
||||
|
||||
return output_list
|
||||
|
||||
|
||||
# takes 1 minute to run without batching
|
||||
test_dataset = Dataset.from_list(process_df(df))
|
||||
|
||||
|
||||
# %% [markdown]
|
||||
# ## Load model for attributes
|
||||
|
||||
# %%
|
||||
# load model
|
||||
model_name_or_path = "./t5_80_1" # Replace with your specific model name
|
||||
|
||||
# Load configuration
|
||||
config = AutoConfig.from_pretrained(model_name_or_path)
|
||||
|
||||
# Load model
|
||||
model = FlaxAutoModelForSeq2SeqLM.from_pretrained(
|
||||
pretrained_model_name_or_path=model_name_or_path
|
||||
)
|
||||
|
||||
|
||||
# %% [markdown]
|
||||
# ## Tokenizer
|
||||
|
||||
# %%
|
||||
# prepare tokenizer
|
||||
from transformers import T5TokenizerFast
|
||||
tokenizer = T5TokenizerFast.from_pretrained("t5-base", return_tensors="np", clean_up_tokenization_spaces=True)
|
||||
# Define additional special tokens
|
||||
additional_special_tokens = ["<THING_START>", "<THING_END>", "<PROPERTY_START>", "<PROPERTY_END>", "<NAME>", "<DESC>", "SIG", "UNIT", "DATA_TYPE"]
|
||||
# Add the additional special tokens to the tokenizer
|
||||
tokenizer.add_special_tokens({"additional_special_tokens": additional_special_tokens})
|
||||
|
||||
max_length = 86
|
||||
|
||||
model_module = __import__(model.__module__, fromlist=["shift_tokens_tight"])
|
||||
shift_tokens_right_fn = getattr(model_module, "shift_tokens_right")
|
||||
|
||||
# given a dataset entry, run it through the tokenizer
|
||||
# Setting padding="max_length" as we need fixed length inputs for jitted functions
|
||||
def preprocess_function(example):
|
||||
inputs = example['input']
|
||||
targets = example['output']
|
||||
# text_target sets the corresponding label to inputs
|
||||
# there is no need to create a separate 'labels'
|
||||
model_inputs = tokenizer(
|
||||
inputs,
|
||||
max_length=max_length,
|
||||
padding="max_length",
|
||||
truncation=True,
|
||||
return_tensors="np"
|
||||
)
|
||||
labels = tokenizer(
|
||||
text_target=targets,
|
||||
max_length=max_length,
|
||||
padding="max_length",
|
||||
truncation=True,
|
||||
return_tensors="np"
|
||||
)
|
||||
|
||||
model_inputs["labels"] = labels["input_ids"]
|
||||
decoder_input_ids = shift_tokens_right_fn(
|
||||
labels["input_ids"], config.pad_token_id, config.decoder_start_token_id
|
||||
)
|
||||
model_inputs["decoder_input_ids"] = np.asarray(decoder_input_ids)
|
||||
|
||||
# We need decoder_attention_mask so we can ignore pad tokens from loss
|
||||
model_inputs["decoder_attention_mask"] = labels["attention_mask"]
|
||||
|
||||
return model_inputs
|
||||
|
||||
# map maps function to each "row" in the dataset
|
||||
# aka the data in the immediate nesting
|
||||
test_dataset = test_dataset.map(
|
||||
preprocess_function,
|
||||
batched=True,
|
||||
num_proc=1,
|
||||
remove_columns=test_dataset.column_names,
|
||||
)
|
||||
|
||||
def data_loader(rng: jax.random.PRNGKey, dataset: Dataset, batch_size: int, shuffle: bool = False, drop_last=True):
|
||||
"""
|
||||
Returns batches of size `batch_size` from `dataset`. If `drop_last` is set to `False`, the final batch may be incomplete,
|
||||
and range in size from 1 to `batch_size`. Shuffle batches if `shuffle` is `True`.
|
||||
"""
|
||||
if shuffle:
|
||||
batch_idx = jax.random.permutation(rng, len(dataset))
|
||||
batch_idx = np.asarray(batch_idx)
|
||||
else:
|
||||
batch_idx = np.arange(len(dataset))
|
||||
|
||||
if drop_last:
|
||||
steps_per_epoch = len(dataset) // batch_size
|
||||
batch_idx = batch_idx[: steps_per_epoch * batch_size] # Skip incomplete batch.
|
||||
batch_idx = batch_idx.reshape((steps_per_epoch, batch_size))
|
||||
else:
|
||||
steps_per_epoch = math.ceil(len(dataset) / batch_size)
|
||||
batch_idx = np.array_split(batch_idx, steps_per_epoch)
|
||||
|
||||
for idx in batch_idx:
|
||||
batch = dataset[idx]
|
||||
batch = {k: np.array(v) for k, v in batch.items()}
|
||||
|
||||
yield batch
|
||||
|
||||
# %% [markdown]
|
||||
# # model generation
|
||||
|
||||
# %%
|
||||
seed = 117
|
||||
num_epochs = 80
|
||||
batch_size = 96
|
||||
num_train_epochs = num_epochs
|
||||
per_device_train_batch_size = batch_size
|
||||
train_batch_size = per_device_train_batch_size * jax.device_count()
|
||||
per_device_eval_batch_size = batch_size
|
||||
eval_batch_size = per_device_eval_batch_size * jax.device_count()
|
||||
steps_per_epoch = len(test_dataset) // train_batch_size
|
||||
total_train_steps = steps_per_epoch * num_epochs
|
||||
|
||||
num_beams = 1
|
||||
val_max_target_length = 128
|
||||
|
||||
predict_with_generate = True
|
||||
|
||||
|
||||
# Initialize our training
|
||||
rng = jax.random.PRNGKey(seed)
|
||||
rng, dropout_rng = jax.random.split(rng)
|
||||
|
||||
|
||||
# %%
|
||||
|
||||
# reload model to prevent leakage of variables
|
||||
# load model
|
||||
model_name_or_path = "t5_80_1_bf16" # Replace with your specific model name
|
||||
|
||||
# Load configuration
|
||||
config = AutoConfig.from_pretrained(model_name_or_path)
|
||||
|
||||
# Load model
|
||||
model = FlaxAutoModelForSeq2SeqLM.from_pretrained(
|
||||
model_name_or_path
|
||||
)
|
||||
|
||||
|
||||
# Ensure model.params is properly initialized (this is just an example)
|
||||
# Normally you would get this from a model initialization call with dummy input
|
||||
params = model.params
|
||||
# ensure full size floats
|
||||
params_f16 = jax.tree_util.tree_map(lambda x: x.astype(jnp.float32), params)
|
||||
# we need to replicate model over devices
|
||||
replicated_params = jax.device_put_replicated(params_f16, jax.devices())
|
||||
|
||||
|
||||
# Define generation function
|
||||
max_length = (
|
||||
val_max_target_length if val_max_target_length is not None else model.config.max_length
|
||||
)
|
||||
num_beams = num_beams if num_beams is not None else model.config.num_beams
|
||||
gen_kwargs = {"max_length": max_length, "num_beams": num_beams}
|
||||
|
||||
def generate_step(params, batch):
|
||||
output_ids = model.generate(batch["input_ids"], attention_mask=batch["attention_mask"], params=params, **gen_kwargs)
|
||||
return output_ids.sequences
|
||||
|
||||
# Create parallel version of the train and eval step
|
||||
p_generate_step = jax.pmap(generate_step, "batch")
|
||||
|
||||
|
||||
|
||||
pred_generations = []
|
||||
pred_labels = []
|
||||
|
||||
rng, input_rng = jax.random.split(rng)
|
||||
|
||||
pred_loader = data_loader(input_rng, test_dataset, eval_batch_size, drop_last=False)
|
||||
pred_steps = math.ceil(len(test_dataset) / eval_batch_size)
|
||||
|
||||
print("***** Running training *****")
|
||||
print(f" Num examples = {len(test_dataset)}")
|
||||
print(f" Num steps = {num_epochs}")
|
||||
print(f" Instantaneous batch size per device = {per_device_train_batch_size}")
|
||||
print(f" Total test batch size (w. parallel & distributed) = {train_batch_size}")
|
||||
|
||||
|
||||
for _ in tqdm(range(pred_steps), desc="Predicting..."):
|
||||
# Model forward
|
||||
batch = next(pred_loader)
|
||||
labels = batch["labels"]
|
||||
|
||||
# generation
|
||||
generated_ids = pad_shard_unpad(p_generate_step)(replicated_params, batch)
|
||||
pred_generations.extend(jax.device_get(generated_ids.reshape(-1, gen_kwargs["max_length"])))
|
||||
pred_labels.extend(labels)
|
||||
|
||||
|
||||
|
||||
# %% [markdown]
|
||||
# # process predictions
|
||||
|
||||
|
||||
# %%
|
||||
# code to get special token ids
|
||||
# sentence = "<THING_START><THING_END><PROPERTY_START><PROPERTY_END><NAME><DESC><DESC><UNIT>"
|
||||
# tokens = tokenizer.tokenize(sentence)
|
||||
# print("Tokens:", tokens)
|
||||
# # Get the IDs (integer indices) of specific tokens
|
||||
# token_ids = [tokenizer.convert_tokens_to_ids(token) for token in tokens]
|
||||
# print("Token IDs:", token_ids)
|
||||
|
||||
|
||||
# %%
|
||||
# extract sequence and decode
|
||||
def extract_seq(tokens, start_value, end_value):
|
||||
if start_value not in tokens or end_value not in tokens:
|
||||
return None # Or handle this case according to your requirements
|
||||
start_id = np.where(tokens == start_value)[0][0]
|
||||
end_id = np.where(tokens == end_value)[0][0]
|
||||
|
||||
return tokens[start_id+1:end_id]
|
||||
|
||||
|
||||
def process_tensor_output(tokens):
|
||||
thing_seq = extract_seq(tokens, 32100, 32101) # 32100 = <THING_START>, 32101 = <THING_END>
|
||||
property_seq = extract_seq(tokens, 32102, 32103) # 32102 = <PROPERTY_START>, 32103 = <PROPERTY_END>
|
||||
p_thing = None
|
||||
p_property = None
|
||||
if (thing_seq is not None):
|
||||
p_thing = tokenizer.decode(thing_seq, skip_special_tokens=False) # retain <COLLIDE>
|
||||
if (property_seq is not None):
|
||||
p_property = tokenizer.decode(property_seq, skip_special_tokens=False) # retain <COLLIDE>
|
||||
return p_thing, p_property
|
||||
|
||||
|
||||
# %%
|
||||
# decode prediction labels
|
||||
def decode_preds(tokens_list):
|
||||
thing_prediction_list = []
|
||||
property_prediction_list = []
|
||||
for tokens in tokens_list:
|
||||
p_thing, p_property = process_tensor_output(tokens)
|
||||
thing_prediction_list.append(p_thing)
|
||||
property_prediction_list.append(p_property)
|
||||
return thing_prediction_list, property_prediction_list
|
||||
|
||||
thing_prediction_list, property_prediction_list = decode_preds(pred_generations)
|
||||
|
||||
# %%
|
||||
# add labels too
|
||||
thing_actual_list, property_actual_list = decode_preds(pred_labels)
|
||||
|
||||
# Convert the list to a Pandas DataFrame
|
||||
df = pd.DataFrame({'p_thing': thing_prediction_list,
|
||||
'p_property': property_prediction_list,
|
||||
'thing': thing_actual_list,
|
||||
'property' : property_actual_list})
|
||||
|
||||
df['p_thing_correct'] = df['p_thing'] == df['thing']
|
||||
df['p_property_correct'] = df['p_property'] == df['property']
|
||||
|
||||
# %%
|
||||
print("thing accuracy", sum(df['p_thing_correct'])/len(df))
|
||||
print("property accuracy", sum(df['p_property_correct'])/len(df))
|
||||
print("total accuracy", sum(df['p_property_correct'] & df['p_thing_correct'])/len(df))
|
||||
# %%
|
||||
df[~df["p_property_correct"]]
|
||||
|
||||
# %%
|
||||
df['p_thing']
|
||||
# %%
|
||||
# Save the DataFrame as a Parquet file (using pyarrow or fastparquet)
|
||||
# df.to_parquet("exports/output_file.parquet", engine="pyarrow") # or use engine="fastparquet"
|
||||
|
||||
|
||||
Loading…
Reference in New Issue