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add create_dataset

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This commit is contained in:
Goekdeniz-Guelmez 2025-02-04 11:06:57 +01:00
parent c33c245c11
commit 1beefd58a0
1 changed files with 25 additions and 16 deletions
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41
llms/mlx_lm/tuner/datasets.py
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@ -140,6 +140,7 @@ class CompletionsDataset:
def create_dataset(
args,
data,
tokenizer: PreTrainedTokenizer,
prompt_feature: Optional[str] = None,
@ -148,24 +149,31 @@ def create_dataset(
prompt_feature = prompt_feature or "prompt"
completion_feature = completion_feature or "completion"
sample = data[0]
# Add DPO dataset support
if "chosen" in sample and "rejected" in sample:
return ORPODataset(data, tokenizer)
elif "messages" in sample:
return ChatDataset(data, tokenizer)
elif prompt_feature in sample and completion_feature in sample:
return CompletionsDataset(data, tokenizer, prompt_feature, completion_feature)
elif "text" in sample:
return Dataset(data, tokenizer)
if args.training_mode == "normal":
if "messages" in sample:
return ChatDataset(data, tokenizer)
elif prompt_feature in sample and completion_feature in sample:
return CompletionsDataset(data, tokenizer, prompt_feature, completion_feature)
elif "text" in sample:
return Dataset(data, tokenizer)
else:
raise ValueError(
"Unsupported data format, check the supported formats here:\n"
"https://github.com/ml-explore/mlx-examples/blob/main/llms/mlx_lm/LORA.md#data."
)
elif args.training_mode == "orpo":
if "chosen" in sample and "rejected" in sample:
return ORPODataset(data, tokenizer)
else:
raise ValueError(
"Unsupported data format, check the supported formats here:\n"
"https://github.com/ml-explore/mlx-examples/blob/main/llms/mlx_lm/LORA.md#data."
"Unsupported training mode, check the supported training modes and their formats here:\n"
"https://github.com/ml-explore/mlx-examples/blob/main/llms/mlx_lm/LORA.md#training-modes."
)
def load_local_dataset(
args,
data_path: Path,
tokenizer: PreTrainedTokenizer,
prompt_feature: Optional[str] = None,
@ -176,7 +184,7 @@ def load_local_dataset(
return []
with open(path, "r") as fid:
data = [json.loads(l) for l in fid]
return create_dataset(data, tokenizer, prompt_feature, completion_feature)
return create_dataset(args, data, tokenizer, prompt_feature, completion_feature)
names = ("train", "valid", "test")
train, valid, test = [load_subset(data_path / f"{n}.jsonl") for n in names]
@ -184,6 +192,7 @@ def load_local_dataset(
def load_hf_dataset(
args,
data_id: str,
tokenizer: PreTrainedTokenizer,
prompt_feature: Optional[str] = None,
@ -199,7 +208,7 @@ def load_hf_dataset(
train, valid, test = [
(
create_dataset(
dataset[n], tokenizer, prompt_feature, completion_feature
args, dataset[n], tokenizer, prompt_feature, completion_feature
)
if n in dataset.keys()
else []
@ -264,12 +273,12 @@ def load_dataset(args, tokenizer: PreTrainedTokenizer):
completion_feature = getattr(args, "completion_feature", None)
if data_path.exists():
train, valid, test = load_local_dataset(
data_path, tokenizer, prompt_feature, completion_feature
args, data_path, tokenizer, prompt_feature, completion_feature
)
else:
print(f"Loading Hugging Face dataset {args.data}.")
train, valid, test = load_hf_dataset(
args.data, tokenizer, prompt_feature, completion_feature
args, args.data, tokenizer, prompt_feature, completion_feature
)
if args.train and len(train) == 0: