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https://github.com/wassname/Open-Assistant.git
synced 2026-06-27 16:10:30 +08:00
fixed linting
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@@ -1,24 +1,28 @@
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# -*- coding: utf-8 -*-
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import torch
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from transformers import AutoModel
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class RankGenModel(torch.nn.Module):
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def __init__(self, model_name):
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super().__init__()
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self.rankgen_hf_hub = model_name
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assert model_name in ["kalpeshk2011/rankgen-t5-xl-all",
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"kalpeshk2011/rankgen-t5-xl-pg19",
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"kalpeshk2011/rankgen-t5-base-all",
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"kalpeshk2011/rankgen-t5-large-all"]
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self.model = AutoModel.from_pretrained(self.rankgen_hf_hub, trust_remote_code=True)
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def forward(self, prefixes, suffixes):
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# print(list(self.model.parameters()))
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# raise Exception("stop")
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embedded_prefixes = self.model(**prefixes)
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embedded_suffixes = self.model(**suffixes)
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# take dot product of each row independently
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dot_products = torch.sum(embedded_prefixes * embedded_suffixes, dim=1)
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# print(f"{embedded_prefixes.shape=}, {embedded_suffixes.shape=}, {prefixes['input_ids'].shape=}, {suffixes['input_ids'].shape=}, {embedded_prefixes=}, {embedded_suffixes=}, {dot_products=}")
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# raise Exception("stop")
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return dot_products
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class RankGenModel(torch.nn.Module):
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def __init__(self, model_name):
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super().__init__()
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self.rankgen_hf_hub = model_name
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assert model_name in [
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"kalpeshk2011/rankgen-t5-xl-all",
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"kalpeshk2011/rankgen-t5-xl-pg19",
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"kalpeshk2011/rankgen-t5-base-all",
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"kalpeshk2011/rankgen-t5-large-all",
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]
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self.model = AutoModel.from_pretrained(self.rankgen_hf_hub, trust_remote_code=True)
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def forward(self, prefixes, suffixes):
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# print(list(self.model.parameters()))
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# raise Exception("stop")
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embedded_prefixes = self.model(**prefixes)
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embedded_suffixes = self.model(**suffixes)
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# take dot product of each row independently
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dot_products = torch.sum(embedded_prefixes * embedded_suffixes, dim=1)
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# print(f"{embedded_prefixes.shape=}, {embedded_suffixes.shape=}, {prefixes['input_ids'].shape=}, {suffixes['input_ids'].shape=}, {embedded_prefixes=}, {embedded_suffixes=}, {dot_products=}")
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# raise Exception("stop")
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return dot_products
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@@ -23,19 +23,20 @@ from dataclasses import dataclass
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from typing import Optional, Union
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import numpy as np
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from datasets import load_dataset
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import torch
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from datasets import load_dataset
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from torch.utils.data import Dataset
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from transformers.tokenization_utils_base import PaddingStrategy, PreTrainedTokenizerBase
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@dataclass
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class RankGenCollator():
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class RankGenCollator:
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tokenizer: PreTrainedTokenizerBase
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padding: Union[bool, str, PaddingStrategy] = True
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max_length: Optional[int] = None
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max_examples: Optional[int] = None
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def __call__(self, batch : list[dict[str, str]]) -> dict[str, torch.Tensor]:
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def __call__(self, batch: list[dict[str, str]]) -> dict[str, torch.Tensor]:
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prefixes = []
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better_answers = []
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worse_answers = []
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@@ -44,13 +45,18 @@ class RankGenCollator():
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prefixes.append("pre " + question)
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better_answers.append("suffi " + pos)
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worse_answers.append("suffi " + neg)
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tokenized_prefixes = self.tokenizer(prefixes, return_tensors="pt", padding=self.padding, max_length=self.max_length, truncation=True)
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tokenized_pos = self.tokenizer(better_answers, return_tensors="pt", padding=self.padding, max_length=self.max_length, truncation=True)
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tokenized_neg = self.tokenizer(worse_answers, return_tensors="pt", padding=self.padding, max_length=self.max_length, truncation=True)
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return {"prefix" : tokenized_prefixes,
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"positive": tokenized_pos,
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"negative": tokenized_neg}
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tokenized_prefixes = self.tokenizer(
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prefixes, return_tensors="pt", padding=self.padding, max_length=self.max_length, truncation=True
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)
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tokenized_pos = self.tokenizer(
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better_answers, return_tensors="pt", padding=self.padding, max_length=self.max_length, truncation=True
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)
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tokenized_neg = self.tokenizer(
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worse_answers, return_tensors="pt", padding=self.padding, max_length=self.max_length, truncation=True
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)
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return {"prefix": tokenized_prefixes, "positive": tokenized_pos, "negative": tokenized_neg}
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@dataclass
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class DataCollatorForPairRank:
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@@ -1,7 +1,7 @@
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datasets==2.8.0
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evaluate==0.4.0
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scikit-learn==1.2.0
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sentencepiece==0.1.97
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torch>=1.12.1
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transformers==4.25.1
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wandb==0.13.7
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sentencepiece==0.1.97
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@@ -7,11 +7,11 @@ from typing import Any, Callable, Dict, List, Optional, Tuple, Union
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import evaluate
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import numpy as np
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import torch
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from models import RankGenModel
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from rank_datasets import DataCollatorForPairRank, HFSummary, RankGenCollator, WebGPT
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from torch import nn
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from torch.utils.data import ConcatDataset, Dataset
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from transformers import (
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AutoModel,
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AutoModelForSequenceClassification,
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DataCollator,
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EvalPrediction,
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@@ -21,7 +21,6 @@ from transformers import (
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TrainerCallback,
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TrainingArguments,
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)
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from models import RankGenModel
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from utils import argument_parsing, freeze_top_n_layers, get_tokenizer, train_val_dataset
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os.environ["WANDB_PROJECT"] = "reward-model"
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@@ -95,7 +94,7 @@ class RankTrainer(Trainer):
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loss = self.loss_fct(positive_outputs, negative_outputs)
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else:
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raise NotImplementedError("Only ranking loss has been implemented for rankgen model")
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outputs = torch.hstack((positive_outputs, negative_outputs)) #logits
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outputs = torch.hstack((positive_outputs, negative_outputs)) # logits
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else:
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outputs = model(**inputs)
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logits = outputs.get("logits").view(-1, 2)
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@@ -133,7 +132,7 @@ class RankTrainer(Trainer):
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loss = self.loss_fct(positive_outputs, negative_outputs)
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else:
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raise NotImplementedError("Only ranking loss has been implemented for rankgen model")
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outputs = torch.hstack((positive_outputs, negative_outputs)) # logits
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outputs = torch.hstack((positive_outputs, negative_outputs)) # logits
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return (loss, outputs, None)
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else:
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# compute loss on predict data
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@@ -161,7 +160,7 @@ if __name__ == "__main__":
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model_parameters = filter(lambda p: p.requires_grad, model.parameters())
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params = sum([np.prod(p.size()) for p in model_parameters])
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print("Number of trainable : {}M".format(int(params / 1e6)))
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args = CustomTrainingArguments(
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output_dir=f"{model_name}-finetuned",
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num_train_epochs=training_conf["num_train_epochs"],
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@@ -196,20 +195,16 @@ if __name__ == "__main__":
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assert len(sum_eval) > 0
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evals["hfsummary"] = sum_eval
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train = ConcatDataset(train_datasets)
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if "tokenizer_name" in training_conf:
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tokenizer=get_tokenizer(training_conf["tokenizer_name"])
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tokenizer = get_tokenizer(training_conf["tokenizer_name"])
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else:
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tokenizer = get_tokenizer(model_name)
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if "rankgen" in model_name:
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collate_fn = RankGenCollator(
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tokenizer, max_length=training_conf["max_length"]
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)
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collate_fn = RankGenCollator(tokenizer, max_length=training_conf["max_length"])
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else:
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collate_fn = DataCollatorForPairRank(
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tokenizer, max_length=training_conf["max_length"]
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)
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collate_fn = DataCollatorForPairRank(tokenizer, max_length=training_conf["max_length"])
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assert len(evals) > 0
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trainer = RankTrainer(
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model=model,
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@@ -26,7 +26,7 @@ def webgpt_return_format(row):
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def get_tokenizer(tokenizer_name):
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if "t5" in tokenizer_name: #rankgen
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if "t5" in tokenizer_name: # rankgen
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tokenizer = T5Tokenizer.from_pretrained(tokenizer_name, truncation_side="left")
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else:
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tokenizer = AutoTokenizer.from_pretrained(tokenizer_name)
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