mirror of
https://github.com/hiyouga/LLaMA-Factory.git
synced 2025-12-14 10:56:56 +08:00
add MMLU and C-Eval script
Former-commit-id: 3403f876127b4b99c5e3edb2834cc3b9a3a0063f
This commit is contained in:
@@ -6,8 +6,8 @@
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import fire
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import torch
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from typing import Optional
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from deepspeed.accelerator import get_accelerator
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from deepspeed.profiling.flops_profiler import get_model_profile
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from deepspeed.accelerator import get_accelerator # type: ignore
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from deepspeed.profiling.flops_profiler import get_model_profile # type: ignore
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from llmtuner import ChatModel
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@@ -35,7 +35,7 @@ def calculate(
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print_profile=True,
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detailed=True
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)
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print("FLOPS:", flops)
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print("FLOPs:", flops)
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print("MACs:", macs)
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print("Params:", params)
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@@ -1,133 +0,0 @@
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# coding=utf-8
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# Evaluates fine-tuned models automatically.
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# Usage: python evaluate_zh.py --evalset ceval/ceval-exam:law --split dev --output_file result.json
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# --api_base http://localhost:8000/v1 --task_type choice --n_samples 100
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# dataset format: question (string), A (string), B (string), C (string), D (string), answer (Literal["A", "B", "C", "D"])
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import os
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import fire
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import json
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import openai
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from tqdm import tqdm
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from typing import Literal, Optional
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from datasets import load_dataset
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def format_example_choice(examples):
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model_inputs = {"query": [], "label": []}
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task_template = "请从ABCD四个选项中选出正确的选项,仅输出选项序号。\n{question}\nA. {A}\nB. {B}\nC. {C}\nD. {D}\n答案:"
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for i in range(len(examples["id"])):
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query = task_template.format(
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question=examples["question"][i],
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A=examples["A"][i],
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B=examples["B"][i],
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C=examples["C"][i],
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D=examples["D"][i]
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)
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label = examples["answer"][i]
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model_inputs["query"].append(query)
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model_inputs["label"].append(label)
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return model_inputs
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def format_example_cloze(examples):
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model_inputs = {"query": [], "label": []}
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task_template = "请选择正确的答案填空,仅输出正确的选项。\n{question}\n选项:{A}\n{B}\n{C}\n{D}\n答案:"
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for i in range(len(examples["id"])):
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query = task_template.format(
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question=examples["question"][i],
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A=examples["A"][i],
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B=examples["B"][i],
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C=examples["C"][i],
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D=examples["D"][i]
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)
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label = examples[examples["answer"][i]][i]
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model_inputs["query"].append(query)
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model_inputs["label"].append(label)
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return model_inputs
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def format_example_openqa(examples):
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model_inputs = {"query": [], "label": []}
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task_template = "回答以下问题:{question}\n答案:"
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for i in range(len(examples["id"])):
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query = task_template.format(question=examples["question"][i])
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label = examples[examples["answer"][i]][i]
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model_inputs["query"].append(query)
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model_inputs["label"].append(label)
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return model_inputs
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TASK_DICT = {
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"choice": format_example_choice,
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"cloze": format_example_cloze,
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"openqa": format_example_openqa
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}
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EXT2TYPE = {
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"csv": "csv",
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"json": "json",
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"jsonl": "json"
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}
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def evaluate(
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evalset: str,
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api_base: str,
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output_file: str,
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split: Optional[str] = "val",
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task_type: Optional[Literal["choice", "cloze", "openqa"]] = "choice",
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n_samples: Optional[int] = 20
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):
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openai.api_base = api_base
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openai.api_key = "none"
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if os.path.isfile(evalset):
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dataset = load_dataset(EXT2TYPE[evalset.split(".")[-1]], data_files=evalset)["train"]
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elif ":" in evalset:
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evalset, subset = evalset.split(":")
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dataset = load_dataset(evalset, subset, split=split)
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else:
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dataset = load_dataset(evalset, split=split)
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n_samples = min(len(dataset), n_samples)
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dataset = dataset.map(TASK_DICT[task_type], batched=True)
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dataset = dataset.select(range(n_samples))
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n_correct = 0
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predictions = []
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for example in tqdm(dataset):
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query, label = example["query"], example["label"]
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predict = openai.ChatCompletion.create(
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model="default",
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messages=[{"role": "user", "content": query}],
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temperature=0.01,
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top_p=0.01,
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max_new_tokens=20
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).choices[0].message.content
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if task_type == "choice" and predict[0].lower() == label[0].lower():
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n_correct += 1
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if task_type == "cloze" and label in [predict[:len(label)], predict[-len(label):]]:
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n_correct += 1
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if task_type == "openqa" and label in predict:
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n_correct += 1
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predictions.append({
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"query": query,
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"label": label,
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"predict": predict
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})
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print("Result: {}/{}\nAccuracy: {:.2f}%".format(n_correct, n_samples, n_correct / n_samples * 100))
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with open(output_file, "w", encoding="utf-8") as f:
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json.dump(predictions, f, indent=2, ensure_ascii=False)
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if __name__ == "__main__":
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fire.Fire(evaluate)
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@@ -1,654 +0,0 @@
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# Copyright (c) 2023, Baichuan Intelligent Technology. All rights reserved.
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# Modified by hiyouga, to support attention mask, the alibi implementation is largely borrowed from
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# https://github.com/huggingface/transformers/blob/main/src/transformers/models/bloom/modeling_bloom.py
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import math
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from typing import List, Optional, Tuple, Union
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import torch
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import torch.utils.checkpoint
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import torch.nn.functional as F
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from torch import nn
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from torch.nn import CrossEntropyLoss
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from transformers import PreTrainedModel
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from transformers.activations import ACT2FN
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from transformers.modeling_outputs import BaseModelOutputWithPast, CausalLMOutputWithPast
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from transformers.utils import logging
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from .configuration_baichuan import BaichuanConfig
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logger = logging.get_logger(__name__)
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# Copied from transformers.models.bloom.modeling_bloom._make_causal_mask
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def _make_causal_mask(
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input_ids_shape: torch.Size, device: torch.device, past_key_values_length: int
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) -> torch.BoolTensor:
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"""
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Make causal mask used for self-attention.
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"""
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batch_size, target_length = input_ids_shape
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mask = torch.empty((target_length, target_length + past_key_values_length), dtype=torch.bool, device=device)
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# ONNX doesn't support `torch.Tensor.triu` properly, thus we use this workaround
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seq_ids = torch.arange(target_length, device=device)
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mask[:, past_key_values_length:] = seq_ids[:, None] < seq_ids[None, :]
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if past_key_values_length > 0:
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mask[:, :past_key_values_length] = False
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expanded_mask = mask[None, None, :, :].expand(batch_size, 1, target_length, target_length + past_key_values_length)
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return expanded_mask
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# Copied from transformers.models.bloom.modeling_bloom._expand_mask
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def _expand_mask(mask: torch.Tensor, tgt_length: int) -> torch.BoolTensor:
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"""
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Expands attention_mask from `[batch_size, src_length]` to `[batch_size, 1, tgt_length, src_length]`.
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"""
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batch_size, src_length = mask.shape
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tgt_length = tgt_length if tgt_length is not None else src_length
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expanded_mask = ~(mask[:, None, None, :].to(torch.bool))
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return expanded_mask.expand(batch_size, 1, tgt_length, src_length)
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# Copied from transformers.models.bloom.modeling_bloom.build_alibi_tensor
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def build_alibi_tensor(attention_mask: torch.Tensor, num_heads: int, dtype: torch.dtype) -> torch.Tensor:
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"""
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Link to paper: https://arxiv.org/abs/2108.12409 Alibi tensor is not causal as the original paper mentions, it
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relies on a translation invariance of softmax for quick implementation: with l being a tensor, and a fixed value
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`softmax(l+a) = softmax(l)`.
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Args:
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Returns tensor shaped (batch_size * num_heads, 1, max_seq_len)
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attention_mask (`torch.Tensor`):
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Token-wise attention mask, this should be of shape (batch_size, max_seq_len).
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num_heads (`int`, *required*):
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number of heads
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dtype (`torch.dtype`, *optional*, default=`torch.bfloat16`):
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dtype of the output tensor
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"""
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batch_size, seq_length = attention_mask.shape
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closest_power_of_2 = 2 ** math.floor(math.log2(num_heads))
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base = torch.tensor(
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2 ** (-(2 ** -(math.log2(closest_power_of_2) - 3))), device=attention_mask.device, dtype=torch.float32
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)
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powers = torch.arange(1, 1 + closest_power_of_2, device=attention_mask.device, dtype=torch.int32)
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slopes = torch.pow(base, powers)
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if closest_power_of_2 != num_heads:
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extra_base = torch.tensor(
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2 ** (-(2 ** -(math.log2(2 * closest_power_of_2) - 3))), device=attention_mask.device, dtype=torch.float32
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)
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num_remaining_heads = min(closest_power_of_2, num_heads - closest_power_of_2)
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extra_powers = torch.arange(1, 1 + 2 * num_remaining_heads, 2, device=attention_mask.device, dtype=torch.int32)
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slopes = torch.cat([slopes, torch.pow(extra_base, extra_powers)], dim=0)
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# Note: alibi will added to the attention bias that will be applied to the query, key product of attention
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# => therefore alibi will have to be of shape (batch_size, num_heads, query_length, key_length)
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# => here we set (batch_size=1, num_heads=num_heads, query_length=1, key_length=max_length)
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# => the query_length dimension will then be broadcasted correctly
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arange_tensor = ((attention_mask.cumsum(dim=-1) - 1) * attention_mask)[:, None, :]
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alibi = slopes[..., None] * arange_tensor
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return alibi.reshape(batch_size * num_heads, 1, seq_length).to(dtype)
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class RMSNorm(nn.Module):
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def __init__(self, hidden_size, epsilon=1e-6):
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super().__init__()
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self.weight = nn.Parameter(torch.ones(hidden_size))
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self.epsilon = epsilon
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def forward(self, hidden_states: torch.Tensor) -> torch.Tensor:
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input_dtype = hidden_states.dtype
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variance = hidden_states.to(torch.float32).pow(2).mean(-1, keepdim=True)
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hidden_states = hidden_states * torch.rsqrt(variance + self.epsilon)
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return (self.weight * hidden_states).to(input_dtype)
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class MLP(nn.Module):
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def __init__(
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self,
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hidden_size: int,
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intermediate_size: int,
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hidden_act: str,
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):
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super().__init__()
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self.gate_proj = nn.Linear(hidden_size, intermediate_size, bias=False)
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self.down_proj = nn.Linear(intermediate_size, hidden_size, bias=False)
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self.up_proj = nn.Linear(hidden_size, intermediate_size, bias=False)
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self.act_fn = ACT2FN[hidden_act]
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def forward(self, x):
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return self.down_proj(self.act_fn(self.gate_proj(x)) * self.up_proj(x))
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class BaichuanAttention(nn.Module):
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def __init__(self, config: "BaichuanConfig"):
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super().__init__()
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self.config = config
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self.hidden_size = config.hidden_size
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self.num_heads = config.num_attention_heads
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self.head_dim = self.hidden_size // self.num_heads
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self.max_position_embeddings = config.model_max_length
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if (self.head_dim * self.num_heads) != self.hidden_size:
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raise ValueError(
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f"hidden_size {self.hidden_size} is not divisible by num_heads {self.num_heads}"
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)
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# Layer-wise attention scaling
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self.inv_norm_factor = 1.0 / math.sqrt(self.head_dim)
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self.beta = 1.0
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self.W_pack = nn.Linear(self.hidden_size, 3 * self.hidden_size, bias=False)
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self.o_proj = nn.Linear(self.num_heads * self.head_dim, self.hidden_size, bias=False)
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def _shape(self, tensor: torch.Tensor, seq_len: int, bsz: int):
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return tensor.view(bsz, seq_len, self.num_heads, self.head_dim).transpose(1, 2).contiguous()
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def forward(
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self,
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hidden_states: torch.Tensor,
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alibi: torch.Tensor,
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attention_mask: torch.Tensor,
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past_key_value: Optional[Tuple[torch.Tensor]] = None,
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output_attentions: bool = False,
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use_cache: bool = False,
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) -> Tuple[torch.Tensor, Optional[torch.Tensor], Optional[Tuple[torch.Tensor]]]:
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bsz, q_len, _ = hidden_states.size()
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proj = self.W_pack(hidden_states) # [batch_size, seq_length, 3 x hidden_size]
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proj = proj.unflatten(-1, (3, self.hidden_size)).unsqueeze(0).transpose(0, -2).squeeze(-2)
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query_states = proj[0].view(bsz, q_len, self.num_heads, self.head_dim)
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key_states = proj[1].view(bsz, q_len, self.num_heads, self.head_dim)
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value_states = proj[2].view(bsz, q_len, self.num_heads, self.head_dim)
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query_states = query_states.transpose(1, 2).reshape(bsz * self.num_heads, q_len, self.head_dim)
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key_states = key_states.permute(0, 2, 3, 1).reshape(bsz * self.num_heads, self.head_dim, q_len)
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value_states = value_states.transpose(1, 2).reshape(bsz * self.num_heads, q_len, self.head_dim)
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if past_key_value is not None:
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# reuse k, v, self_attention
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past_key, past_value = past_key_value
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key_states = torch.cat([past_key, key_states], dim=2)
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value_states = torch.cat([past_value, value_states], dim=1)
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_, _, kv_seq_len = key_states.shape
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past_key_value = (key_states, value_states) if use_cache else None
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# [batch_size * num_heads, q_length, kv_length]
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# we use `torch.Tensor.baddbmm` instead of `torch.baddbmm` as the latter isn't supported by TorchScript v1.11
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matmul_result = alibi.baddbmm(
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batch1=query_states,
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batch2=key_states,
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beta=self.beta,
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alpha=self.inv_norm_factor,
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)
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# change view to [batch_size, num_heads, q_length, kv_length]
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attention_scores = matmul_result.view(bsz, self.num_heads, q_len, kv_seq_len)
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# cast attention scores to fp32, compute scaled softmax and cast back to initial dtype
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# [batch_size, num_heads, q_length, kv_length]
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input_dtype = attention_scores.dtype
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# `float16` has a minimum value of -65504.0, whereas `bfloat16` and `float32` have a minimum value of `-3.4e+38`
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if input_dtype == torch.float16:
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attention_scores = attention_scores.to(torch.float)
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attn_weights = torch.masked_fill(attention_scores, attention_mask, torch.finfo(attention_scores.dtype).min)
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attention_probs = F.softmax(attn_weights, dim=-1, dtype=torch.float32).to(input_dtype)
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# change view [batch_size x num_heads, q_length, kv_length]
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attention_probs_reshaped = attention_probs.view(bsz * self.num_heads, q_len, kv_seq_len)
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# matmul: [batch_size * num_heads, q_length, head_dim]
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attn_output = torch.bmm(attention_probs_reshaped, value_states)
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attn_output = attn_output.view(bsz, self.num_heads, q_len, self.head_dim)
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attn_output = attn_output.transpose(1, 2).reshape(bsz, q_len, self.hidden_size)
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attn_output = self.o_proj(attn_output)
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if not output_attentions:
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attention_probs = None
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return attn_output, attention_probs, past_key_value
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class BaichuanLayer(nn.Module):
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def __init__(self, config: "BaichuanConfig"):
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super().__init__()
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self.hidden_size = config.hidden_size
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self.self_attn = BaichuanAttention(config=config)
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self.mlp = MLP(
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hidden_size=self.hidden_size,
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intermediate_size=config.intermediate_size,
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hidden_act=config.hidden_act,
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)
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self.input_layernorm = RMSNorm(config.hidden_size, epsilon=config.rms_norm_eps)
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self.post_attention_layernorm = RMSNorm(config.hidden_size, epsilon=config.rms_norm_eps)
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def forward(
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self,
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hidden_states: torch.Tensor,
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alibi: torch.Tensor,
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attention_mask: torch.Tensor,
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past_key_value: Optional[Tuple[torch.Tensor]] = None,
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output_attentions: Optional[bool] = False,
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use_cache: Optional[bool] = False,
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) -> Tuple[torch.FloatTensor, Optional[Tuple[torch.FloatTensor, torch.FloatTensor]]]:
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residual = hidden_states
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hidden_states = self.input_layernorm(hidden_states)
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|
||||
# Self Attention
|
||||
hidden_states, self_attn_weights, present_key_value = self.self_attn(
|
||||
hidden_states=hidden_states,
|
||||
alibi=alibi,
|
||||
attention_mask=attention_mask,
|
||||
past_key_value=past_key_value,
|
||||
output_attentions=output_attentions,
|
||||
use_cache=use_cache,
|
||||
)
|
||||
hidden_states = residual + hidden_states
|
||||
|
||||
# Fully Connected
|
||||
residual = hidden_states
|
||||
hidden_states = self.post_attention_layernorm(hidden_states)
|
||||
hidden_states = self.mlp(hidden_states)
|
||||
hidden_states = residual + hidden_states
|
||||
|
||||
outputs = (hidden_states,)
|
||||
|
||||
if output_attentions:
|
||||
outputs += (self_attn_weights,)
|
||||
|
||||
if use_cache:
|
||||
outputs += (present_key_value,)
|
||||
|
||||
return outputs
|
||||
|
||||
|
||||
class BaichuanPreTrainedModel(PreTrainedModel):
|
||||
config_class = BaichuanConfig
|
||||
base_model_prefix = "model"
|
||||
supports_gradient_checkpointing = True
|
||||
_no_split_modules = ["BaichuanLayer"]
|
||||
_skip_keys_device_placement = "past_key_values"
|
||||
_keys_to_ignore_on_load_unexpected = [r"decoder\.version"]
|
||||
|
||||
def _init_weights(self, module):
|
||||
std = self.config.initializer_range
|
||||
if isinstance(module, nn.Linear):
|
||||
module.weight.data.normal_(mean=0.0, std=std)
|
||||
if module.bias is not None:
|
||||
module.bias.data.zero_()
|
||||
elif isinstance(module, nn.Embedding):
|
||||
module.weight.data.normal_(mean=0.0, std=std)
|
||||
if module.padding_idx is not None:
|
||||
module.weight.data[module.padding_idx].zero_()
|
||||
|
||||
def _set_gradient_checkpointing(self, module, value=False):
|
||||
if isinstance(module, BaichuanModel):
|
||||
module.gradient_checkpointing = value
|
||||
|
||||
@staticmethod
|
||||
def _convert_to_standard_cache(
|
||||
past_key_value: Tuple[Tuple[torch.Tensor, torch.Tensor]], batch_size: int
|
||||
) -> Tuple[Tuple[torch.Tensor, torch.Tensor]]:
|
||||
"""
|
||||
Standardizes the format of the cache so as to match most implementations, i.e. to tuple(tuple([batch_size,
|
||||
num_heads, ...]))
|
||||
"""
|
||||
batch_size_times_num_heads, head_dim, seq_length = past_key_value[0][0].shape
|
||||
num_heads = batch_size_times_num_heads // batch_size
|
||||
# key: [batch_size * num_heads, head_dim, seq_length] -> [batch_size, num_heads, head_dim, seq_length]
|
||||
# value: [batch_size * num_heads, seq_length, head_dim] -> [batch_size, num_heads, seq_length, head_dim]
|
||||
return tuple(
|
||||
(
|
||||
layer_past[0].view(batch_size, num_heads, head_dim, seq_length),
|
||||
layer_past[1].view(batch_size, num_heads, seq_length, head_dim),
|
||||
)
|
||||
for layer_past in past_key_value
|
||||
)
|
||||
|
||||
@staticmethod
|
||||
def _convert_to_baichuan_cache(
|
||||
past_key_value: Tuple[Tuple[torch.Tensor, torch.Tensor]]
|
||||
) -> Tuple[Tuple[torch.Tensor, torch.Tensor]]:
|
||||
"""
|
||||
Converts the cache to the format expected by Baichuan, i.e. to tuple(tuple([batch_size * num_heads, ...]))
|
||||
"""
|
||||
batch_size, num_heads, head_dim, seq_length = past_key_value[0][0].shape
|
||||
batch_size_times_num_heads = batch_size * num_heads
|
||||
# key: [batch_size, num_heads, head_dim, seq_length] -> [batch_size * num_heads, head_dim, seq_length]
|
||||
# value: [batch_size, num_heads, seq_length, head_dim] -> [batch_size * num_heads, seq_length, head_dim]
|
||||
return tuple(
|
||||
(
|
||||
layer_past[0].view(batch_size_times_num_heads, head_dim, seq_length),
|
||||
layer_past[1].view(batch_size_times_num_heads, seq_length, head_dim),
|
||||
)
|
||||
for layer_past in past_key_value
|
||||
)
|
||||
|
||||
|
||||
class BaichuanModel(BaichuanPreTrainedModel):
|
||||
|
||||
def __init__(self, config: "BaichuanConfig"):
|
||||
super().__init__(config)
|
||||
self.padding_idx = config.pad_token_id
|
||||
self.vocab_size = config.vocab_size
|
||||
self.n_head = config.num_attention_heads
|
||||
|
||||
self.embed_tokens = nn.Embedding(config.vocab_size, config.hidden_size, self.padding_idx)
|
||||
self.layers = nn.ModuleList([BaichuanLayer(config) for _ in range(config.num_hidden_layers)])
|
||||
self.norm = RMSNorm(config.hidden_size, epsilon=config.rms_norm_eps)
|
||||
|
||||
self.gradient_checkpointing = config.gradient_checkpointing
|
||||
self.post_init()
|
||||
|
||||
def get_input_embeddings(self):
|
||||
return self.embed_tokens
|
||||
|
||||
def set_input_embeddings(self, value):
|
||||
self.embed_tokens = value
|
||||
|
||||
def build_alibi_tensor(self, attention_mask: torch.Tensor, num_heads: int, dtype: torch.dtype) -> torch.Tensor:
|
||||
return build_alibi_tensor(attention_mask, num_heads, dtype)
|
||||
|
||||
def _prepare_attn_mask(
|
||||
self, attention_mask: torch.Tensor, input_shape: Tuple[int, int], past_key_values_length: int
|
||||
) -> torch.BoolTensor:
|
||||
# create causal mask
|
||||
# [batch_size, seq_length] -> [batch_size, 1, tgt_length, src_length]
|
||||
combined_attention_mask = None
|
||||
device = attention_mask.device
|
||||
_, src_length = input_shape
|
||||
|
||||
if src_length > 1:
|
||||
combined_attention_mask = _make_causal_mask(
|
||||
input_shape, device=device, past_key_values_length=past_key_values_length
|
||||
)
|
||||
|
||||
# [batch_size, seq_length] -> [batch_size, 1, tgt_length, src_length]
|
||||
expanded_attn_mask = _expand_mask(attention_mask, tgt_length=src_length)
|
||||
combined_attention_mask = (
|
||||
expanded_attn_mask if combined_attention_mask is None else expanded_attn_mask | combined_attention_mask
|
||||
)
|
||||
|
||||
return combined_attention_mask
|
||||
|
||||
def forward(
|
||||
self,
|
||||
input_ids: torch.LongTensor = None,
|
||||
attention_mask: Optional[torch.Tensor] = None,
|
||||
past_key_values: Optional[List[torch.FloatTensor]] = None,
|
||||
inputs_embeds: Optional[torch.FloatTensor] = None,
|
||||
use_cache: Optional[bool] = None,
|
||||
output_attentions: Optional[bool] = None,
|
||||
output_hidden_states: Optional[bool] = None,
|
||||
return_dict: Optional[bool] = None,
|
||||
) -> Union[Tuple, BaseModelOutputWithPast]:
|
||||
output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
|
||||
output_hidden_states = (
|
||||
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
|
||||
)
|
||||
use_cache = use_cache if use_cache is not None else self.config.use_cache
|
||||
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
||||
|
||||
if input_ids is not None and inputs_embeds is not None:
|
||||
raise ValueError("You cannot provide both input_ids and inputs_embeds simultaneously")
|
||||
elif input_ids is not None:
|
||||
batch_size, seq_length = input_ids.shape
|
||||
elif inputs_embeds is not None:
|
||||
batch_size, seq_length, _ = inputs_embeds.shape
|
||||
else:
|
||||
raise ValueError("You need to provide input_ids or inputs_embeds")
|
||||
|
||||
seq_length_with_past = seq_length
|
||||
past_key_values_length = 0
|
||||
if past_key_values is not None:
|
||||
past_key_values_length = past_key_values[0][0].shape[1]
|
||||
seq_length_with_past = seq_length_with_past + past_key_values_length
|
||||
|
||||
if inputs_embeds is None:
|
||||
inputs_embeds = self.embed_tokens(input_ids)
|
||||
|
||||
hidden_states = inputs_embeds
|
||||
|
||||
if attention_mask is None:
|
||||
attention_mask = torch.ones((batch_size, seq_length_with_past), device=hidden_states.device)
|
||||
else:
|
||||
attention_mask = attention_mask.to(hidden_states.device)
|
||||
|
||||
if self.gradient_checkpointing and self.training:
|
||||
if use_cache:
|
||||
logger.warning_once(
|
||||
"`use_cache=True` is incompatible with gradient checkpointing. Setting `use_cache=False`..."
|
||||
)
|
||||
use_cache = False
|
||||
|
||||
# Compute alibi tensor: check build_alibi_tensor documentation
|
||||
alibi = self.build_alibi_tensor(attention_mask, self.n_head, dtype=hidden_states.dtype)
|
||||
|
||||
causal_mask = self._prepare_attn_mask(
|
||||
attention_mask,
|
||||
input_shape=(batch_size, seq_length),
|
||||
past_key_values_length=past_key_values_length,
|
||||
)
|
||||
|
||||
# decoder layers
|
||||
all_hidden_states = () if output_hidden_states else None
|
||||
all_self_attns = () if output_attentions else None
|
||||
next_decoder_cache = () if use_cache else None
|
||||
|
||||
for idx, decoder_layer in enumerate(self.layers):
|
||||
if output_hidden_states:
|
||||
all_hidden_states += (hidden_states,)
|
||||
|
||||
past_key_value = past_key_values[idx] if past_key_values is not None else None
|
||||
|
||||
if self.gradient_checkpointing and self.training:
|
||||
|
||||
def create_custom_forward(module):
|
||||
def custom_forward(*inputs):
|
||||
# None for past_key_value
|
||||
return module(*inputs, output_attentions, None)
|
||||
|
||||
return custom_forward
|
||||
|
||||
layer_outputs = torch.utils.checkpoint.checkpoint(
|
||||
create_custom_forward(decoder_layer),
|
||||
hidden_states,
|
||||
alibi,
|
||||
causal_mask,
|
||||
None,
|
||||
)
|
||||
else:
|
||||
layer_outputs = decoder_layer(
|
||||
hidden_states,
|
||||
alibi=alibi,
|
||||
attention_mask=causal_mask,
|
||||
past_key_value=past_key_value,
|
||||
output_attentions=output_attentions,
|
||||
use_cache=use_cache,
|
||||
)
|
||||
|
||||
hidden_states = layer_outputs[0]
|
||||
|
||||
if use_cache:
|
||||
next_decoder_cache += (layer_outputs[2 if output_attentions else 1],)
|
||||
|
||||
if output_attentions:
|
||||
all_self_attns += (layer_outputs[1],)
|
||||
|
||||
hidden_states = self.norm(hidden_states)
|
||||
|
||||
# add hidden states from the last decoder layer
|
||||
if output_hidden_states:
|
||||
all_hidden_states += (hidden_states,)
|
||||
|
||||
next_cache = next_decoder_cache if use_cache else None
|
||||
|
||||
if not return_dict:
|
||||
return tuple(v for v in [hidden_states, next_cache, all_hidden_states, all_self_attns] if v is not None)
|
||||
|
||||
return BaseModelOutputWithPast(
|
||||
last_hidden_state=hidden_states,
|
||||
past_key_values=next_cache,
|
||||
hidden_states=all_hidden_states,
|
||||
attentions=all_self_attns,
|
||||
)
|
||||
|
||||
|
||||
class BaichuanForCausalLM(BaichuanPreTrainedModel):
|
||||
|
||||
def __init__(self, config):
|
||||
super().__init__(config)
|
||||
self.model = BaichuanModel(config)
|
||||
|
||||
self.lm_head = nn.Linear(config.hidden_size, config.vocab_size, bias=False)
|
||||
|
||||
# Initialize weights and apply final processing
|
||||
self.post_init()
|
||||
|
||||
def get_input_embeddings(self):
|
||||
return self.model.embed_tokens
|
||||
|
||||
def set_input_embeddings(self, value):
|
||||
self.model.embed_tokens = value
|
||||
|
||||
def get_output_embeddings(self):
|
||||
return self.lm_head
|
||||
|
||||
def set_output_embeddings(self, new_embeddings):
|
||||
self.lm_head = new_embeddings
|
||||
|
||||
def set_decoder(self, decoder):
|
||||
self.model = decoder
|
||||
|
||||
def get_decoder(self):
|
||||
return self.model
|
||||
|
||||
def forward(
|
||||
self,
|
||||
input_ids: torch.LongTensor = None,
|
||||
attention_mask: Optional[torch.Tensor] = None,
|
||||
past_key_values: Optional[List[torch.FloatTensor]] = None,
|
||||
inputs_embeds: Optional[torch.FloatTensor] = None,
|
||||
labels: Optional[torch.LongTensor] = None,
|
||||
use_cache: Optional[bool] = None,
|
||||
output_attentions: Optional[bool] = None,
|
||||
output_hidden_states: Optional[bool] = None,
|
||||
return_dict: Optional[bool] = None,
|
||||
**kwargs
|
||||
) -> Union[Tuple, CausalLMOutputWithPast]:
|
||||
output_attentions = output_attentions if output_attentions is not None else self.config.output_attentions
|
||||
output_hidden_states = (
|
||||
output_hidden_states if output_hidden_states is not None else self.config.output_hidden_states
|
||||
)
|
||||
return_dict = return_dict if return_dict is not None else self.config.use_return_dict
|
||||
|
||||
# decoder outputs consists of (dec_features, layer_state, dec_hidden, dec_attn)
|
||||
outputs = self.model(
|
||||
input_ids=input_ids,
|
||||
attention_mask=attention_mask,
|
||||
past_key_values=past_key_values,
|
||||
inputs_embeds=inputs_embeds,
|
||||
use_cache=use_cache,
|
||||
output_attentions=output_attentions,
|
||||
output_hidden_states=output_hidden_states,
|
||||
return_dict=return_dict,
|
||||
)
|
||||
|
||||
hidden_states = outputs[0]
|
||||
logits = self.lm_head(hidden_states)
|
||||
|
||||
loss = None
|
||||
if labels is not None:
|
||||
# Shift so that tokens < n predict n
|
||||
shift_logits = logits[..., :-1, :].contiguous()
|
||||
shift_labels = labels[..., 1:].contiguous()
|
||||
# Flatten the tokens
|
||||
loss_fct = CrossEntropyLoss()
|
||||
shift_logits = shift_logits.view(-1, self.config.vocab_size)
|
||||
shift_labels = shift_labels.view(-1)
|
||||
# Enable model parallelism
|
||||
shift_labels = shift_labels.to(shift_logits.device)
|
||||
loss = loss_fct(shift_logits, shift_labels)
|
||||
|
||||
if not return_dict:
|
||||
output = (logits,) + outputs[1:]
|
||||
return (loss,) + output if loss is not None else output
|
||||
|
||||
return CausalLMOutputWithPast(
|
||||
loss=loss,
|
||||
logits=logits,
|
||||
past_key_values=outputs.past_key_values,
|
||||
hidden_states=outputs.hidden_states,
|
||||
attentions=outputs.attentions,
|
||||
)
|
||||
|
||||
def prepare_inputs_for_generation(
|
||||
self,
|
||||
input_ids: torch.LongTensor,
|
||||
past_key_values: Optional[torch.Tensor] = None,
|
||||
attention_mask: Optional[torch.Tensor] = None,
|
||||
inputs_embeds: Optional[torch.Tensor] = None,
|
||||
**kwargs
|
||||
) -> dict:
|
||||
if past_key_values:
|
||||
input_ids = input_ids[:, -1:]
|
||||
|
||||
# the cache may be in the standard format (e.g. in contrastive search)
|
||||
if past_key_values[0][0].shape[0] == input_ids.shape[0]:
|
||||
past_key_values = self._convert_to_baichuan_cache(past_key_values)
|
||||
|
||||
# if `inputs_embeds` are passed, we only want to use them in the 1st generation step
|
||||
if inputs_embeds is not None and past_key_values is None:
|
||||
model_inputs = {"inputs_embeds": inputs_embeds}
|
||||
else:
|
||||
model_inputs = {"input_ids": input_ids}
|
||||
|
||||
model_inputs.update(
|
||||
{
|
||||
"past_key_values": past_key_values,
|
||||
"use_cache": kwargs.get("use_cache"),
|
||||
"attention_mask": attention_mask,
|
||||
}
|
||||
)
|
||||
return model_inputs
|
||||
|
||||
def _reorder_cache(
|
||||
self, past: Tuple[Tuple[torch.Tensor, torch.Tensor], ...], beam_idx: torch.LongTensor
|
||||
) -> Tuple[Tuple[torch.Tensor, torch.Tensor], ...]:
|
||||
"""
|
||||
This function is used to re-order the `past_key_values` cache if [`~PreTrainedModel.beam_search`] or
|
||||
[`~PreTrainedModel.beam_sample`] is called. This is required to match `past_key_values` with the correct
|
||||
beam_idx at every generation step.
|
||||
|
||||
Output shares the same memory storage as `past`.
|
||||
"""
|
||||
standardized_past = self._convert_to_standard_cache(past, batch_size=len(beam_idx))
|
||||
|
||||
# Get a copy of `beam_idx` on all the devices where we need those indices.
|
||||
device_to_beam_idx = {
|
||||
past_state.device: beam_idx.to(past_state.device) for layer_past in past for past_state in layer_past
|
||||
}
|
||||
reordered_past = tuple(
|
||||
(
|
||||
layer_past[0].index_select(0, device_to_beam_idx[layer_past[0].device]),
|
||||
layer_past[1].index_select(0, device_to_beam_idx[layer_past[0].device]),
|
||||
)
|
||||
for layer_past in standardized_past
|
||||
)
|
||||
return self._convert_to_baichuan_cache(reordered_past)
|
||||
@@ -1,5 +1,5 @@
|
||||
# coding=utf-8
|
||||
# Quantizes fine-tuned models with AutoGPTQ (https://github.com/PanQiWei/AutoGPTQ).
|
||||
# Quantizes models with AutoGPTQ (https://github.com/PanQiWei/AutoGPTQ).
|
||||
# Usage: python quantize.py --input_dir path_to_llama_model --output_dir path_to_quant_model --data_file alpaca.json
|
||||
# --max_length 1024 --max_samples 1024
|
||||
# dataset format: instruction (string), input (string), output (string), history (List[string])
|
||||
|
||||
Reference in New Issue
Block a user