first commit

arguments.py

+from dataclasses import dataclass, field
+from typing import Optional
+
+
+@dataclass
+class ModelArguments:
+    """
+    Arguments pertaining to which model/config/tokenizer we are going to fine-tune from.
+    """
+
+    model_name_or_path: str = field(
+        metadata={
+            "help": "Path to pretrained model or model identifier from huggingface.co/models"}
+    )
+    ptuning_checkpoint: str = field(
+        default=None, metadata={"help": "Path to p-tuning v2 checkpoints"}
+    )
+    config_name: Optional[str] = field(
+        default=None, metadata={"help": "Pretrained config name or path if not the same as model_name"}
+    )
+    tokenizer_name: Optional[str] = field(
+        default=None, metadata={"help": "Pretrained tokenizer name or path if not the same as model_name"}
+    )
+    cache_dir: Optional[str] = field(
+        default=None,
+        metadata={
+            "help": "Where to store the pretrained models downloaded from huggingface.co"},
+    )
+    use_fast_tokenizer: bool = field(
+        default=True,
+        metadata={
+            "help": "Whether to use one of the fast tokenizer (backed by the tokenizers library) or not."},
+    )
+    model_revision: str = field(
+        default="main",
+        metadata={
+            "help": "The specific model version to use (can be a branch name, tag name or commit id)."},
+    )
+    use_auth_token: bool = field(
+        default=False,
+        metadata={
+            "help": (
+                "Will use the token generated when running `huggingface-cli login` (necessary to use this script "
+                "with private models)."
+            )
+        },
+    )
+    resize_position_embeddings: Optional[bool] = field(
+        default=None,
+        metadata={
+            "help": (
+                "Whether to automatically resize the position embeddings if `max_source_length` exceeds "
+                "the model's position embeddings."
+            )
+        },
+    )
+    quantization_bit: Optional[int] = field(
+        default=None
+    )
+    pre_seq_len: Optional[int] = field(
+        default=None
+    )
+    prefix_projection: bool = field(
+        default=False
+    )
+    lora_r: Optional[int] = field(
+        default=None
+    )
+    model_parallel_mode: bool = field(
+        default=False,
+        metadata={
+            "help": (
+                "选择是否进行模型并行，建议在多卡环境中使用，可以提高数据训练的长度"
+            )
+        }
+    )
+
+
+@dataclass
+class DataTrainingArguments:
+    """
+    Arguments pertaining to what data we are going to input our model for training and eval.
+    """
+
+    lang: Optional[str] = field(default=None, metadata={
+        "help": "Language id for summarization."})
+
+    dataset_name: Optional[str] = field(
+        default=None, metadata={"help": "The name of the dataset to use (via the datasets library)."}
+    )
+    dataset_config_name: Optional[str] = field(
+        default=None, metadata={"help": "The configuration name of the dataset to use (via the datasets library)."}
+    )
+    prompt_column: Optional[str] = field(
+        default=None,
+        metadata={
+            "help": "The name of the column in the datasets containing the full texts (for summarization)."},
+    )
+    response_column: Optional[str] = field(
+        default=None,
+        metadata={
+            "help": "The name of the column in the datasets containing the summaries (for summarization)."},
+    )
+    history_column: Optional[str] = field(
+        default=None,
+        metadata={
+            "help": "The name of the column in the datasets containing the history of chat."},
+    )
+    train_file: Optional[str] = field(
+        default=None, metadata={"help": "The input training data file (a jsonlines or csv file)."}
+    )
+    validation_file: Optional[str] = field(
+        default=None,
+        metadata={
+            "help": (
+                "An optional input evaluation data file to evaluate the metrics (rouge) on (a jsonlines or csv file)."
+            )
+        },
+    )
+    test_file: Optional[str] = field(
+        default=None,
+        metadata={
+            "help": "An optional input test data file to evaluate the metrics (rouge) on (a jsonlines or csv file)."
+        },
+    )
+    overwrite_cache: bool = field(
+        default=False, metadata={"help": "Overwrite the cached training and evaluation sets"}
+    )
+    preprocessing_num_workers: Optional[int] = field(
+        default=None,
+        metadata={"help": "The number of processes to use for the preprocessing."},
+    )
+    max_source_length: Optional[int] = field(
+        default=1024,
+        metadata={
+            "help": (
+                "The maximum total input sequence length after tokenization. Sequences longer "
+                "than this will be truncated, sequences shorter will be padded."
+            )
+        },
+    )
+    max_target_length: Optional[int] = field(
+        default=128,
+        metadata={
+            "help": (
+                "The maximum total sequence length for target text after tokenization. Sequences longer "
+                "than this will be truncated, sequences shorter will be padded."
+            )
+        },
+    )
+    val_max_target_length: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": (
+                "The maximum total sequence length for validation target text after tokenization. Sequences longer "
+                "than this will be truncated, sequences shorter will be padded. Will default to `max_target_length`."
+                "This argument is also used to override the ``max_length`` param of ``model.generate``, which is used "
+                "during ``evaluate`` and ``predict``."
+            )
+        },
+    )
+    pad_to_max_length: bool = field(
+        default=False,
+        metadata={
+            "help": (
+                "Whether to pad all samples to model maximum sentence length. "
+                "If False, will pad the samples dynamically when batching to the maximum length in the batch. More "
+                "efficient on GPU but very bad for TPU."
+            )
+        },
+    )
+    max_train_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": (
+                "For debugging purposes or quicker training, truncate the number of training examples to this "
+                "value if set."
+            )
+        },
+    )
+    max_eval_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": (
+                "For debugging purposes or quicker training, truncate the number of evaluation examples to this "
+                "value if set."
+            )
+        },
+    )
+    max_predict_samples: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": (
+                "For debugging purposes or quicker training, truncate the number of prediction examples to this "
+                "value if set."
+            )
+        },
+    )
+    num_beams: Optional[int] = field(
+        default=None,
+        metadata={
+            "help": (
+                "Number of beams to use for evaluation. This argument will be passed to ``model.generate``, "
+                "which is used during ``evaluate`` and ``predict``."
+            )
+        },
+    )
+    ignore_pad_token_for_loss: bool = field(
+        default=True,
+        metadata={
+            "help": "Whether to ignore the tokens corresponding to padded labels in the loss computation or not."
+        },
+    )
+    source_prefix: Optional[str] = field(
+        default="", metadata={"help": "A prefix to add before every source text (useful for T5 models)."}
+    )
+
+    forced_bos_token: Optional[str] = field(
+        default=None,
+        metadata={
+            "help": (
+                "The token to force as the first generated token after the decoder_start_token_id."
+                "Useful for multilingual models like mBART where the first generated token"
+                "needs to be the target language token (Usually it is the target language token)"
+            )
+        },
+    )
+
+    def __post_init__(self):
+        if self.dataset_name is None and self.train_file is None and self.validation_file is None and self.test_file is None:
+            raise ValueError(
+                "Need either a dataset name or a training/validation/test file.")
+        else:
+            if self.train_file is not None:
+                extension = self.train_file.split(".")[-1]
+                assert extension in [
+                    "csv", "json"], "`train_file` should be a csv or a json file."
+            if self.validation_file is not None:
+                extension = self.validation_file.split(".")[-1]
+                assert extension in [
+                    "csv", "json"], "`validation_file` should be a csv or a json file."
+        if self.val_max_target_length is None:
+            self.val_max_target_length = self.max_target_length

infer_lora.ipynb

+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## 原始部分"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from transformers import AutoTokenizer, AutoModel\n",
+    "from peft import PeftModel, PeftConfig\n",
+    "import torch\n",
+    "import os\n",
+    "os.environ['CUDA_VISIBLE_DEVICES'] = '1'\n",
+    "\n",
+    "\n",
+    "model_name_or_path = \"/media/yuanz/新加卷/训练代码/chatglm6b_v2_0716/chatglm2-6b_model\"\n",
+    "\n",
+    "\n",
+    "tokenizer = AutoTokenizer.from_pretrained(model_name_or_path, trust_remote_code=True)\n",
+    "model = AutoModel.from_pretrained(model_name_or_path, trust_remote_code=True, device_map='auto', torch_dtype=torch.bfloat16)#.half().cuda()\n",
+    "\n",
+    "\n",
+    "model = model.eval()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "response, history = model.chat(tokenizer, \"你好\", history=[])\n",
+    "print(response)\n",
+    "response, history = model.chat(tokenizer, \"类型#上衣*材质#牛仔布*颜色#白色*风格#简约*图案#刺绣*衣样式#外套*衣款式#破洞\", history=[])\n",
+    "print(response)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## 注意这里需要传递lora训练的路径"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "peft_model_id = \"output/adgen-chatglm2-6b-lora_version/checkpoint-880\"\n",
+    "model = PeftModel.from_pretrained(model, peft_model_id)\n",
+    "model = model.eval()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "response, history = model.chat(tokenizer, \"类型#上衣*材质#牛仔布*颜色#白色*风格#简约*图案#刺绣*衣样式#外套*衣款式#破洞\", history=[])\n",
+    "print(response)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "source": [
+    "## 合并模型\n",
+    "1. 很多人合并lora的需求，那么只需要这么做即可"
+   ],
+   "metadata": {
+    "collapsed": false
+   }
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "model_merge = model.merge_and_unload()\n",
+    "merger_lora_model_path = \"test_merge_dir\"\n",
+    "\n",
+    "model_merge.save_pretrained(merge_lora_model_path, max_shard_size=\"2GB\")\n",
+    "tokenizer.save_pretrained(merge_lora_model_path)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "mynet",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.10.12"
+  },
+  "orig_nbformat": 4
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}

main.py

+#!/usr/bin/env python
+# coding=utf-8
+# Copyright 2021 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.
+"""
+Fine-tuning the library models for sequence to sequence.
+"""
+# You can also adapt this script on your own sequence to sequence task. Pointers for this are left as comments.
+
+import logging
+import os
+import sys
+import json
+
+import numpy as np
+from datasets import load_dataset
+import jieba
+from rouge_chinese import Rouge
+from nltk.translate.bleu_score import sentence_bleu, SmoothingFunction
+import torch
+
+import transformers
+from transformers import (
+    AutoConfig,
+    AutoModel,
+    AutoTokenizer,
+    DataCollatorForSeq2Seq,
+    HfArgumentParser,
+    Seq2SeqTrainingArguments,
+    set_seed,
+)
+from trainer_seq2seq import Seq2SeqTrainer
+
+from arguments import ModelArguments, DataTrainingArguments
+
+logger = logging.getLogger(__name__)
+
+
+def main():
+    parser = HfArgumentParser(
+        (ModelArguments, DataTrainingArguments, Seq2SeqTrainingArguments))
+    model_args, data_args, training_args = parser.parse_args_into_dataclasses()
+
+    # Setup logging
+    logging.basicConfig(
+        format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
+        datefmt="%m/%d/%Y %H:%M:%S",
+        handlers=[logging.StreamHandler(sys.stdout)],
+    )
+
+    if training_args.should_log:
+        # The default of training_args.log_level is passive, so we set log level at info here to have that default.
+        transformers.utils.logging.set_verbosity_info()
+
+    log_level = training_args.get_process_log_level()
+    logger.setLevel(log_level)
+    # datasets.utils.logging.set_verbosity(log_level)
+    transformers.utils.logging.set_verbosity(log_level)
+    transformers.utils.logging.enable_default_handler()
+    transformers.utils.logging.enable_explicit_format()
+
+    # Log on each process the small summary:
+    logger.warning(
+        f"Process rank: {training_args.local_rank}, device: {training_args.device}, n_gpu: {training_args.n_gpu}"
+        + f"distributed training: {bool(training_args.local_rank != -1)}, 16-bits training: {training_args.fp16}"
+    )
+    logger.info(f"Training/evaluation parameters {training_args}")
+
+    # Set seed before initializing model.
+    set_seed(training_args.seed)
+
+    # Load dataset
+    data_files = {}
+    if data_args.train_file is not None:
+        data_files["train"] = data_args.train_file
+        extension = data_args.train_file.split(".")[-1]
+    if data_args.validation_file is not None:
+        data_files["validation"] = data_args.validation_file
+        extension = data_args.validation_file.split(".")[-1]
+    if data_args.test_file is not None:
+        data_files["test"] = data_args.test_file
+        extension = data_args.test_file.split(".")[-1]
+
+    raw_datasets = load_dataset(
+        extension,
+        data_files=data_files,
+        cache_dir=model_args.cache_dir,
+        use_auth_token=True if model_args.use_auth_token else None,
+    )
+
+    # Load pretrained model and tokenizer
+    config = AutoConfig.from_pretrained(
+        model_args.model_name_or_path, trust_remote_code=True)
+    config.pre_seq_len = model_args.pre_seq_len
+    config.prefix_projection = model_args.prefix_projection
+
+    tokenizer = AutoTokenizer.from_pretrained(
+        model_args.model_name_or_path, trust_remote_code=True)
+
+    if model_args.ptuning_checkpoint is not None:
+        # Evaluation
+        # Loading extra state dict of prefix encoder
+        model = AutoModel.from_pretrained(
+            model_args.model_name_or_path, config=config, trust_remote_code=True)
+        prefix_state_dict = torch.load(os.path.join(
+            model_args.ptuning_checkpoint, "pytorch_model.bin"))
+        new_prefix_state_dict = {}
+        for k, v in prefix_state_dict.items():
+            if k.startswith("transformer.prefix_encoder."):
+                new_prefix_state_dict[k[len(
+                    "transformer.prefix_encoder."):]] = v
+        model.transformer.prefix_encoder.load_state_dict(new_prefix_state_dict)
+    else:
+        if model_args.model_parallel_mode:
+
+            model = AutoModel.from_pretrained(
+                model_args.model_name_or_path, config=config, trust_remote_code=True, device_map='auto')
+            logger.info(
+                "use model parallel mode to training Lora")
+        else:
+            model = AutoModel.from_pretrained(
+                model_args.model_name_or_path, config=config, trust_remote_code=True)
+
+    if model_args.quantization_bit is not None:
+        print(f"Quantized to {model_args.quantization_bit} bit")
+        model = model.quantize(model_args.quantization_bit)
+    if model_args.pre_seq_len is not None:
+        # P-tuning v2
+        model = model.half()
+        model.transformer.prefix_encoder.float()
+    elif model_args.lora_r is not None:
+        from peft import LoraConfig, get_peft_model
+        LORA_R = model_args.lora_r
+        LORA_ALPHA = 16
+        LORA_DROPOUT = 0.05
+        TARGET_MODULES = [
+            "query_key_value",
+        ]
+
+        config = LoraConfig(
+            r=LORA_R,
+            lora_alpha=LORA_ALPHA,
+            target_modules=TARGET_MODULES,
+            lora_dropout=LORA_DROPOUT,
+            bias="none",
+            task_type="CAUSAL_LM",
+        )
+        model = model.to(torch.bfloat16)
+        model = get_peft_model(model, config)
+        model.print_trainable_parameters()
+
+    else:
+        # Finetune
+        model = model.float()
+
+    prefix = data_args.source_prefix if data_args.source_prefix is not None else ""
+
+    # Preprocessing the datasets.
+    # We need to tokenize inputs and targets.
+    if training_args.do_train:
+        column_names = raw_datasets["train"].column_names
+    elif training_args.do_eval:
+        column_names = raw_datasets["validation"].column_names
+    elif training_args.do_predict:
+        column_names = raw_datasets["test"].column_names
+    else:
+        logger.info(
+            "There is nothing to do. Please pass `do_train`, `do_eval` and/or `do_predict`.")
+        return
+
+    # Get the column names for input/target.
+    prompt_column = data_args.prompt_column
+    response_column = data_args.response_column
+    history_column = data_args.history_column
+
+    # Temporarily set max_target_length for training.
+    max_target_length = data_args.max_target_length
+
+    def preprocess_function_eval(examples):
+        inputs, targets = [], []
+        for i in range(len(examples[prompt_column])):
+            if examples[prompt_column][i] and examples[response_column][i]:
+                query = examples[prompt_column][i]
+                history = examples[history_column][i] if history_column is not None else None
+                prompt = tokenizer.build_prompt(query, history)
+                inputs.append(prompt)
+                targets.append(examples[response_column][i])
+
+        inputs = [prefix + inp for inp in inputs]
+        model_inputs = tokenizer(
+            inputs, max_length=data_args.max_source_length, truncation=True, padding=True)
+        labels = tokenizer(text_target=targets,
+                           max_length=max_target_length, truncation=True)
+
+        if data_args.ignore_pad_token_for_loss:
+            labels["input_ids"] = [
+                [(l if l != tokenizer.pad_token_id else -100) for l in label] for label in labels["input_ids"]
+            ]
+        model_inputs["labels"] = labels["input_ids"]
+
+        return model_inputs
+
+    def preprocess_function_train(examples):
+        max_seq_length = data_args.max_source_length + data_args.max_target_length + 1
+
+        model_inputs = {
+            "input_ids": [],
+            "labels": [],
+        }
+        for i in range(len(examples[prompt_column])):
+            if examples[prompt_column][i] and examples[response_column][i]:
+                query, answer = examples[prompt_column][i], examples[response_column][i]
+
+                history = examples[history_column][i] if history_column is not None else None
+                prompt = tokenizer.build_prompt(query, history)
+
+                prompt = prefix + prompt
+                a_ids = tokenizer.encode(text=prompt, add_special_tokens=True, truncation=True,
+                                         max_length=data_args.max_source_length)
+                b_ids = tokenizer.encode(text=answer, add_special_tokens=False, truncation=True,
+                                         max_length=data_args.max_target_length)
+
+                context_length = len(a_ids)
+                input_ids = a_ids + b_ids + [tokenizer.eos_token_id]
+                labels = [tokenizer.pad_token_id] * \
+                    context_length + b_ids + [tokenizer.eos_token_id]
+
+                pad_len = max_seq_length - len(input_ids)
+                input_ids = input_ids + [tokenizer.pad_token_id] * pad_len
+                labels = labels + [tokenizer.pad_token_id] * pad_len
+                if data_args.ignore_pad_token_for_loss:
+                    labels = [(l if l != tokenizer.pad_token_id else -100)
+                              for l in labels]
+
+                model_inputs["input_ids"].append(input_ids)
+                model_inputs["labels"].append(labels)
+
+        return model_inputs
+
+    def print_dataset_example(example):
+        print("input_ids", example["input_ids"])
+        print("inputs", tokenizer.decode(example["input_ids"]))
+        print("label_ids", example["labels"])
+        print("labels", tokenizer.decode(example["labels"]))
+
+    if training_args.do_train:
+        if "train" not in raw_datasets:
+            raise ValueError("--do_train requires a train dataset")
+        train_dataset = raw_datasets["train"]
+        if data_args.max_train_samples is not None:
+            max_train_samples = min(
+                len(train_dataset), data_args.max_train_samples)
+            train_dataset = train_dataset.select(range(max_train_samples))
+        with training_args.main_process_first(desc="train dataset map pre-processing"):
+            train_dataset = train_dataset.map(
+                preprocess_function_train,
+                batched=True,
+                num_proc=data_args.preprocessing_num_workers,
+                remove_columns=column_names,
+                load_from_cache_file=not data_args.overwrite_cache,
+                desc="Running tokenizer on train dataset",
+            )
+        print_dataset_example(train_dataset[0])
+
+    if training_args.do_eval:
+        max_target_length = data_args.val_max_target_length
+        if "validation" not in raw_datasets:
+            raise ValueError("--do_eval requires a validation dataset")
+        eval_dataset = raw_datasets["validation"]
+        if data_args.max_eval_samples is not None:
+            max_eval_samples = min(
+                len(eval_dataset), data_args.max_eval_samples)
+            eval_dataset = eval_dataset.select(range(max_eval_samples))
+        with training_args.main_process_first(desc="validation dataset map pre-processing"):
+            eval_dataset = eval_dataset.map(
+                preprocess_function_eval,
+                batched=True,
+                num_proc=data_args.preprocessing_num_workers,
+                remove_columns=column_names,
+                load_from_cache_file=not data_args.overwrite_cache,
+                desc="Running tokenizer on validation dataset",
+            )
+        print_dataset_example(eval_dataset[0])
+
+    if training_args.do_predict:
+        max_target_length = data_args.val_max_target_length
+        if "test" not in raw_datasets:
+            raise ValueError("--do_predict requires a test dataset")
+        predict_dataset = raw_datasets["test"]
+        if data_args.max_predict_samples is not None:
+            max_predict_samples = min(
+                len(predict_dataset), data_args.max_predict_samples)
+            predict_dataset = predict_dataset.select(
+                range(max_predict_samples))
+        with training_args.main_process_first(desc="prediction dataset map pre-processing"):
+            predict_dataset = predict_dataset.map(
+                preprocess_function_eval,
+                batched=True,
+                num_proc=data_args.preprocessing_num_workers,
+                remove_columns=column_names,
+                load_from_cache_file=not data_args.overwrite_cache,
+                desc="Running tokenizer on prediction dataset",
+            )
+        print_dataset_example(predict_dataset[0])
+
+    # Data collator
+    label_pad_token_id = - \
+        100 if data_args.ignore_pad_token_for_loss else tokenizer.pad_token_id
+    data_collator = DataCollatorForSeq2Seq(
+        tokenizer,
+        model=model,
+        label_pad_token_id=label_pad_token_id,
+        pad_to_multiple_of=None,
+        padding=False
+    )
+
+    # Metric
+    def compute_metrics(eval_preds):
+        preds, labels = eval_preds
+        if isinstance(preds, tuple):
+            preds = preds[0]
+        decoded_preds = tokenizer.batch_decode(preds, skip_special_tokens=True)
+        if data_args.ignore_pad_token_for_loss:
+            # Replace -100 in the labels as we can't decode them.
+            labels = np.where(labels != -100, labels, tokenizer.pad_token_id)
+        decoded_labels = tokenizer.batch_decode(
+            labels, skip_special_tokens=True)
+
+        score_dict = {
+            "rouge-1": [],
+            "rouge-2": [],
+            "rouge-l": [],
+            "bleu-4": []
+        }
+        for pred, label in zip(decoded_preds, decoded_labels):
+            hypothesis = list(jieba.cut(pred))
+            reference = list(jieba.cut(label))
+            rouge = Rouge()
+            scores = rouge.get_scores(
+                ' '.join(hypothesis), ' '.join(reference))
+            result = scores[0]
+
+            for k, v in result.items():
+                score_dict[k].append(round(v["f"] * 100, 4))
+            bleu_score = sentence_bleu([list(label)], list(
+                pred), smoothing_function=SmoothingFunction().method3)
+            score_dict["bleu-4"].append(round(bleu_score * 100, 4))
+
+        for k, v in score_dict.items():
+            score_dict[k] = float(np.mean(v))
+        return score_dict
+
+    # Override the decoding parameters of Seq2SeqTrainer
+    training_args.generation_max_length = (
+        training_args.generation_max_length
+        if training_args.generation_max_length is not None
+        else data_args.val_max_target_length
+    )
+    training_args.generation_num_beams = (
+        data_args.num_beams if data_args.num_beams is not None else training_args.generation_num_beams
+    )
+    # Initialize our Trainer
+    trainer = Seq2SeqTrainer(
+        model=model,
+        args=training_args,
+        train_dataset=train_dataset if training_args.do_train else None,
+        eval_dataset=eval_dataset if training_args.do_eval else None,
+        tokenizer=tokenizer,
+        data_collator=data_collator,
+        compute_metrics=compute_metrics if training_args.predict_with_generate else None,
+        save_changed=model_args.pre_seq_len is not None,
+        save_lora_model=True if model_args.lora_r is not None else False
+    )
+
+    # Training
+    if training_args.do_train:
+        checkpoint = None
+        if training_args.resume_from_checkpoint is not None:
+            checkpoint = training_args.resume_from_checkpoint
+        # elif last_checkpoint is not None:
+        #     checkpoint = last_checkpoint
+        model.gradient_checkpointing_enable()
+        model.enable_input_require_grads()
+        train_result = trainer.train(resume_from_checkpoint=checkpoint)
+        # trainer.save_model()  # Saves the tokenizer too for easy upload
+
+        metrics = train_result.metrics
+        max_train_samples = (
+            data_args.max_train_samples if data_args.max_train_samples is not None else len(
+                train_dataset)
+        )
+        metrics["train_samples"] = min(max_train_samples, len(train_dataset))
+
+        trainer.log_metrics("train", metrics)
+        trainer.save_metrics("train", metrics)
+        trainer.save_state()
+
+    # Evaluation
+    results = {}
+    max_seq_length = data_args.max_source_length + data_args.max_target_length + 1
+    if training_args.do_eval:
+        logger.info("*** Evaluate ***")
+        metrics = trainer.evaluate(metric_key_prefix="eval", do_sample=True,
+                                   top_p=0.7, max_length=max_seq_length, temperature=0.95)
+        max_eval_samples = data_args.max_eval_samples if data_args.max_eval_samples is not None else len(
+            eval_dataset)
+        metrics["eval_samples"] = min(max_eval_samples, len(eval_dataset))
+
+        trainer.log_metrics("eval", metrics)
+        trainer.save_metrics("eval", metrics)
+
+    if training_args.do_predict:
+        logger.info("*** Predict ***")
+        predict_results = trainer.predict(predict_dataset, metric_key_prefix="predict",
+                                          max_length=max_seq_length, do_sample=True, top_p=0.7, temperature=0.95)
+        metrics = predict_results.metrics
+        max_predict_samples = (
+            data_args.max_predict_samples if data_args.max_predict_samples is not None else len(
+                predict_dataset)
+        )
+        metrics["predict_samples"] = min(
+            max_predict_samples, len(predict_dataset))
+
+        trainer.log_metrics("predict", metrics)
+        trainer.save_metrics("predict", metrics)
+
+        if trainer.is_world_process_zero():
+            if training_args.predict_with_generate:
+                predictions = tokenizer.batch_decode(
+                    predict_results.predictions, skip_special_tokens=True, clean_up_tokenization_spaces=True
+                )
+                predictions = [pred.strip() for pred in predictions]
+                labels = tokenizer.batch_decode(
+                    predict_results.label_ids, skip_special_tokens=True, clean_up_tokenization_spaces=True
+                )
+                labels = [label.strip() for label in labels]
+                output_prediction_file = os.path.join(
+                    training_args.output_dir, "generated_predictions.txt")
+                with open(output_prediction_file, "w", encoding="utf-8") as writer:
+                    for p, l in zip(predictions, labels):
+                        res = json.dumps(
+                            {"labels": l, "predict": p}, ensure_ascii=False)
+                        writer.write(f"{res}\n")
+    return results
+
+
+def _mp_fn(index):
+    # For xla_spawn (TPUs)
+    main()
+
+
+if __name__ == "__main__":
+    main()

train.sh

+export CUDA_VISIBLE_DEVICES=0,1
+python main.py \
+    --do_train \
+    --train_file dataset/AdvertiseGen/train.json \
+    --validation_file dataset/AdvertiseGen/dev.json \
+    --preprocessing_num_workers 10 \
+    --prompt_column content \
+    --response_column summary \
+    --overwrite_cache \
+    --model_name_or_path chatglm2-6b_model \
+    --output_dir output/adgen-chatglm2-6b-lora_version \
+    --overwrite_output_dir \
+    --max_source_length 64 \
+    --max_target_length 128 \
+    --per_device_train_batch_size 1 \
+    --per_device_eval_batch_size 1 \
+    --gradient_accumulation_steps 16 \
+    --predict_with_generate \
+    --max_steps 3000 \
+    --logging_steps 10 \
+    --save_steps 100 \
+    --learning_rate 2e-5 \
+    --lora_r 32 \
+    --model_parallel_mode True
\ No newline at end of file

trainer.py

+# coding=utf-8
+# Copyright 2020-present the HuggingFace Inc. team.
+#
+# 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.
+"""
+The Trainer class, to easily train a 🤗 Transformers from scratch or finetune it on a new task.
+"""
+import os
+from typing import Optional
+from transformers import Trainer
+
+import torch
+from transformers.modeling_utils import PreTrainedModel, unwrap_model
+from transformers.utils import logging
+
+logger = logging.get_logger(__name__)
+
+WEIGHTS_NAME = "pytorch_model.bin"
+TRAINING_ARGS_NAME = "training_args.bin"
+
+
+class PrefixTrainer(Trainer):
+    def __init__(self, *args, save_changed=False, save_lora_model=False, **kwargs):
+        self.save_changed = save_changed
+        self.save_lora_model = save_lora_model
+        super().__init__(*args, **kwargs)
+
+    def _save_lora(self, output_dir: Optional[str] = None) -> None:
+        logger.info(f"Saving LORA model checkpoint to {output_dir}")
+        self.model.save_pretrained(output_dir)
+
+    def _save(self, output_dir: Optional[str] = None, state_dict=None):
+
+        # If we are executing this function, we are the process zero, so we don't check for that.
+        output_dir = output_dir if output_dir is not None else self.args.output_dir
+        os.makedirs(output_dir, exist_ok=True)
+
+        save_lora = self.save_lora_model
+        if save_lora:
+
+            self._save_lora(output_dir)
+        else:
+
+            logger.info(f"Saving model checkpoint to {output_dir}")
+            # Save a trained model and configuration using `save_pretrained()`.
+            # They can then be reloaded using `from_pretrained()`
+            if not isinstance(self.model, PreTrainedModel):
+                if isinstance(unwrap_model(self.model), PreTrainedModel):
+                    if state_dict is None:
+                        state_dict = self.model.state_dict()
+                    unwrap_model(self.model).save_pretrained(
+                        output_dir, state_dict=state_dict)
+                else:
+                    logger.info(
+                        "Trainer.model is not a `PreTrainedModel`, only saving its state dict.")
+                    if state_dict is None:
+                        state_dict = self.model.state_dict()
+                    torch.save(state_dict, os.path.join(
+                        output_dir, WEIGHTS_NAME))
+            else:
+                if self.save_changed:
+                    print("Saving PrefixEncoder")
+                    state_dict = self.model.state_dict()
+                    filtered_state_dict = {}
+                    for k, v in self.model.named_parameters():
+                        if v.requires_grad:
+                            filtered_state_dict[k] = state_dict[k]
+                    self.model.save_pretrained(
+                        output_dir, state_dict=filtered_state_dict)
+                else:
+                    print("Saving the whole model")
+                    self.model.save_pretrained(
+                        output_dir, state_dict=state_dict)
+            if self.tokenizer is not None:
+                self.tokenizer.save_pretrained(output_dir)
+
+            # Good practice: save your training arguments together with the trained model
+            torch.save(self.args, os.path.join(output_dir, TRAINING_ARGS_NAME))

trainer_seq2seq.py

+# Copyright 2020 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.
+
+from typing import Any, Dict, List, Optional, Tuple, Union
+
+import torch
+from torch import nn
+from torch.utils.data import Dataset
+
+from transformers.deepspeed import is_deepspeed_zero3_enabled
+from trainer import PrefixTrainer
+from transformers.trainer_utils import PredictionOutput
+from transformers.utils import logging
+
+
+logger = logging.get_logger(__name__)
+
+
+class Seq2SeqTrainer(PrefixTrainer):
+    def evaluate(
+        self,
+        eval_dataset: Optional[Dataset] = None,
+        ignore_keys: Optional[List[str]] = None,
+        metric_key_prefix: str = "eval",
+        **gen_kwargs
+    ) -> Dict[str, float]:
+        """
+        Run evaluation and returns metrics.
+
+        The calling script will be responsible for providing a method to compute metrics, as they are task-dependent
+        (pass it to the init `compute_metrics` argument).
+
+        You can also subclass and override this method to inject custom behavior.
+
+        Args:
+            eval_dataset (`Dataset`, *optional*):
+                Pass a dataset if you wish to override `self.eval_dataset`. If it is an [`~datasets.Dataset`], columns
+                not accepted by the `model.forward()` method are automatically removed. It must implement the `__len__`
+                method.
+            ignore_keys (`List[str]`, *optional*):
+                A list of keys in the output of your model (if it is a dictionary) that should be ignored when
+                gathering predictions.
+            metric_key_prefix (`str`, *optional*, defaults to `"eval"`):
+                An optional prefix to be used as the metrics key prefix. For example the metrics "bleu" will be named
+                "eval_bleu" if the prefix is `"eval"` (default)
+            max_length (`int`, *optional*):
+                The maximum target length to use when predicting with the generate method.
+            num_beams (`int`, *optional*):
+                Number of beams for beam search that will be used when predicting with the generate method. 1 means no
+                beam search.
+            gen_kwargs:
+                Additional `generate` specific kwargs.
+
+        Returns:
+            A dictionary containing the evaluation loss and the potential metrics computed from the predictions. The
+            dictionary also contains the epoch number which comes from the training state.
+        """
+
+        gen_kwargs = gen_kwargs.copy()
+        if gen_kwargs.get("max_length") is None and gen_kwargs.get("max_new_tokens") is None:
+            gen_kwargs["max_length"] = self.args.generation_max_length
+        gen_kwargs["num_beams"] = (
+            gen_kwargs["num_beams"] if gen_kwargs.get("num_beams") is not None else self.args.generation_num_beams
+        )
+        self._gen_kwargs = gen_kwargs
+
+        return super().evaluate(eval_dataset, ignore_keys=ignore_keys, metric_key_prefix=metric_key_prefix)
+
+    def predict(
+        self,
+        test_dataset: Dataset,
+        ignore_keys: Optional[List[str]] = None,
+        metric_key_prefix: str = "test",
+        **gen_kwargs
+    ) -> PredictionOutput:
+        """
+        Run prediction and returns predictions and potential metrics.
+
+        Depending on the dataset and your use case, your test dataset may contain labels. In that case, this method
+        will also return metrics, like in `evaluate()`.
+
+        Args:
+            test_dataset (`Dataset`):
+                Dataset to run the predictions on. If it is a [`~datasets.Dataset`], columns not accepted by the
+                `model.forward()` method are automatically removed. Has to implement the method `__len__`
+            ignore_keys (`List[str]`, *optional*):
+                A list of keys in the output of your model (if it is a dictionary) that should be ignored when
+                gathering predictions.
+            metric_key_prefix (`str`, *optional*, defaults to `"eval"`):
+                An optional prefix to be used as the metrics key prefix. For example the metrics "bleu" will be named
+                "eval_bleu" if the prefix is `"eval"` (default)
+            max_length (`int`, *optional*):
+                The maximum target length to use when predicting with the generate method.
+            num_beams (`int`, *optional*):
+                Number of beams for beam search that will be used when predicting with the generate method. 1 means no
+                beam search.
+            gen_kwargs:
+                Additional `generate` specific kwargs.
+
+        <Tip>
+
+        If your predictions or labels have different sequence lengths (for instance because you're doing dynamic
+        padding in a token classification task) the predictions will be padded (on the right) to allow for
+        concatenation into one array. The padding index is -100.
+
+        </Tip>
+
+        Returns: *NamedTuple* A namedtuple with the following keys:
+
+            - predictions (`np.ndarray`): The predictions on `test_dataset`.
+            - label_ids (`np.ndarray`, *optional*): The labels (if the dataset contained some).
+            - metrics (`Dict[str, float]`, *optional*): The potential dictionary of metrics (if the dataset contained
+              labels).
+        """
+
+        gen_kwargs = gen_kwargs.copy()
+        if gen_kwargs.get("max_length") is None and gen_kwargs.get("max_new_tokens") is None:
+            gen_kwargs["max_length"] = self.args.generation_max_length
+        gen_kwargs["num_beams"] = (
+            gen_kwargs["num_beams"] if gen_kwargs.get("num_beams") is not None else self.args.generation_num_beams
+        )
+        self._gen_kwargs = gen_kwargs
+
+
+        return super().predict(test_dataset, ignore_keys=ignore_keys, metric_key_prefix=metric_key_prefix)
+
+    def prediction_step(
+        self,
+        model: nn.Module,
+        inputs: Dict[str, Union[torch.Tensor, Any]],
+        prediction_loss_only: bool,
+        ignore_keys: Optional[List[str]] = None,
+    ) -> Tuple[Optional[float], Optional[torch.Tensor], Optional[torch.Tensor]]:
+        """
+        Perform an evaluation step on `model` using `inputs`.
+
+        Subclass and override to inject custom behavior.
+
+        Args:
+            model (`nn.Module`):
+                The model to evaluate.
+            inputs (`Dict[str, Union[torch.Tensor, Any]]`):
+                The inputs and targets of the model.
+
+                The dictionary will be unpacked before being fed to the model. Most models expect the targets under the
+                argument `labels`. Check your model's documentation for all accepted arguments.
+            prediction_loss_only (`bool`):
+                Whether or not to return the loss only.
+
+        Return:
+            Tuple[Optional[float], Optional[torch.Tensor], Optional[torch.Tensor]]: A tuple with the loss, logits and
+            labels (each being optional).
+        """
+
+        if not self.args.predict_with_generate or prediction_loss_only:
+            return super().prediction_step(
+                model, inputs, prediction_loss_only=prediction_loss_only, ignore_keys=ignore_keys
+            )
+
+        has_labels = "labels" in inputs
+        inputs = self._prepare_inputs(inputs)
+
+        # XXX: adapt synced_gpus for fairscale as well
+        gen_kwargs = self._gen_kwargs.copy()
+        if gen_kwargs.get("max_length") is None and gen_kwargs.get("max_new_tokens") is None:
+            gen_kwargs["max_length"] = self.model.config.max_length
+        gen_kwargs["num_beams"] = (
+            gen_kwargs["num_beams"] if gen_kwargs.get("num_beams") is not None else self.model.config.num_beams
+        )
+        default_synced_gpus = True if is_deepspeed_zero3_enabled() else False
+        gen_kwargs["synced_gpus"] = (
+            gen_kwargs["synced_gpus"] if gen_kwargs.get("synced_gpus") is not None else default_synced_gpus
+        )
+
+        if "attention_mask" in inputs:
+            gen_kwargs["attention_mask"] = inputs.get("attention_mask", None)
+        if "position_ids" in inputs:
+            gen_kwargs["position_ids"] = inputs.get("position_ids", None)
+        if "global_attention_mask" in inputs:
+            gen_kwargs["global_attention_mask"] = inputs.get("global_attention_mask", None)
+
+        # prepare generation inputs
+        # some encoder-decoder models can have varying encoder's and thus
+        # varying model input names
+        if hasattr(self.model, "encoder") and self.model.encoder.main_input_name != self.model.main_input_name:
+            generation_inputs = inputs[self.model.encoder.main_input_name]
+        else:
+            generation_inputs = inputs[self.model.main_input_name]
+
+        gen_kwargs["input_ids"] = generation_inputs
+        generated_tokens = self.model.generate(**gen_kwargs)
+        generated_tokens = generated_tokens[:, generation_inputs.size()[-1]:]
+
+        # in case the batch is shorter than max length, the output should be padded
+        if gen_kwargs.get("max_length") is not None and generated_tokens.shape[-1] < gen_kwargs["max_length"]:
+            generated_tokens = self._pad_tensors_to_max_len(generated_tokens, gen_kwargs["max_length"])
+        elif gen_kwargs.get("max_new_tokens") is not None and generated_tokens.shape[-1] < (
+            gen_kwargs["max_new_tokens"] + 1
+        ):
+            generated_tokens = self._pad_tensors_to_max_len(generated_tokens, gen_kwargs["max_new_tokens"] + 1)
+
+        loss = None
+
+        if self.args.prediction_loss_only:
+            return (loss, None, None)
+
+        if has_labels:
+            labels = inputs["labels"]
+            if gen_kwargs.get("max_length") is not None and labels.shape[-1] < gen_kwargs["max_length"]:
+                labels = self._pad_tensors_to_max_len(labels, gen_kwargs["max_length"])
+            elif gen_kwargs.get("max_new_tokens") is not None and labels.shape[-1] < (
+                gen_kwargs["max_new_tokens"] + 1
+            ):
+                labels = self._pad_tensors_to_max_len(labels, (gen_kwargs["max_new_tokens"] + 1))
+        else:
+            labels = None
+
+        return (loss, generated_tokens, labels)
+
+    def _pad_tensors_to_max_len(self, tensor, max_length):
+        if self.tokenizer is not None and hasattr(self.tokenizer, "pad_token_id"):
+            # If PAD token is not defined at least EOS token has to be defined
+            pad_token_id = (
+                self.tokenizer.pad_token_id if self.tokenizer.pad_token_id is not None else self.tokenizer.eos_token_id
+            )
+        else:
+            if self.model.config.pad_token_id is not None:
+                pad_token_id = self.model.config.pad_token_id
+            else:
+                raise ValueError("Pad_token_id must be set in the configuration of the model, in order to pad tensors")
+
+        padded_tensor = pad_token_id * torch.ones(
+            (tensor.shape[0], max_length), dtype=tensor.dtype, device=tensor.device
+        )
+        padded_tensor[:, : tensor.shape[-1]] = tensor
+        return padded_tensor
\ No newline at end of file