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support batch infer in vllm

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Former-commit-id: 3ef5ed3b9a44eed2f7e3ff221dfc343d0a97c0b5
This commit is contained in:
hiyouga
2024-12-04 13:50:00 +00:00
parent 53edd62f8b
commit c1768cfb14
29 changed files with 148 additions and 407 deletions
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11
src/llamafactory/train/sft/trainer.py
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@@ -161,12 +161,9 @@ class CustomSeq2SeqTrainer(Seq2SeqTrainer):
preds[i] = np.concatenate((preds[i][pad_len[0] :], preds[i][: pad_len[0]]), axis=-1)
decoded_inputs = self.tokenizer.batch_decode(dataset["input_ids"], skip_special_tokens=True)
decoded_labels = self.tokenizer.batch_decode(labels, skip_special_tokens=True)
decoded_preds = self.tokenizer.batch_decode(preds, skip_special_tokens=True)
decoded_labels = self.tokenizer.batch_decode(labels, skip_special_tokens=True)
with open(output_prediction_file, "w", encoding="utf-8") as writer:
res: List[str] = []
for text, label, pred in zip(decoded_inputs, decoded_labels, decoded_preds):
res.append(json.dumps({"prompt": text, "label": label, "predict": pred}, ensure_ascii=False))
writer.write("\n".join(res))
with open(output_prediction_file, "w", encoding="utf-8") as f:
for text, pred, label in zip(decoded_inputs, decoded_preds, decoded_labels):
f.write(json.dumps({"prompt": text, "predict": pred, "label": label}, ensure_ascii=False) + "\n")

18
src/llamafactory/train/sft/workflow.py
View File

@@ -19,7 +19,8 @@ from typing import TYPE_CHECKING, List, Optional
from ...data import SFTDataCollatorWith4DAttentionMask, get_dataset, get_template_and_fix_tokenizer
from ...extras.constants import IGNORE_INDEX
from ...extras.misc import cal_effective_tokens, get_logits_processor
from ...extras.logging import get_logger
from ...extras.misc import calculate_tps, get_logits_processor
from ...extras.ploting import plot_loss
from ...model import load_model, load_tokenizer
from ..trainer_utils import create_modelcard_and_push
@@ -33,6 +34,9 @@ if TYPE_CHECKING:
from ...hparams import DataArguments, FinetuningArguments, GeneratingArguments, ModelArguments
logger = get_logger(__name__)
def run_sft(
model_args: "ModelArguments",
data_args: "DataArguments",
@@ -65,11 +69,6 @@ def run_sft(
training_args.generation_num_beams = data_args.eval_num_beams or training_args.generation_num_beams
training_args.remove_unused_columns = False # important for multimodal dataset
effective_token_num = 0.0
if finetuning_args.include_effective_tokens_per_second:
for data in dataset_module["train_dataset"]:
effective_token_num += len(data["input_ids"])
# Metric utils
metric_module = {}
if training_args.predict_with_generate:
@@ -99,12 +98,12 @@ def run_sft(
# Training
if training_args.do_train:
train_result = trainer.train(resume_from_checkpoint=training_args.resume_from_checkpoint)
trainer.save_model()
if finetuning_args.include_effective_tokens_per_second:
train_result.metrics["effective_tokens_per_sec"] = cal_effective_tokens(
effective_token_num, train_result.metrics["epoch"], train_result.metrics["train_runtime"]
train_result.metrics["effective_tokens_per_sec"] = calculate_tps(
dataset_module["train_dataset"], train_result.metrics, stage="sft"
)
trainer.save_model()
trainer.log_metrics("train", train_result.metrics)
trainer.save_metrics("train", train_result.metrics)
trainer.save_state()
@@ -124,6 +123,7 @@ def run_sft(
# Predict
if training_args.do_predict:
logger.warning_once("Batch generation can be very slow. Consider using `scripts/vllm_infer.py` instead.")
predict_results = trainer.predict(dataset_module["eval_dataset"], metric_key_prefix="predict", **gen_kwargs)
if training_args.predict_with_generate: # predict_loss will be wrong if predict_with_generate is enabled
predict_results.metrics.pop("predict_loss", None)