然后,我们使用reward_model计算每个生成响应的奖励,并将这些奖励传递给ppo_trainer.step方法。 然后 ppo_trainer.step 方法将使用 PPO 算法优化 SFT 模型。 fromtqdmimporttqdmforepoch, batchintqdm(enumerate(ppo_trainer.dataloader)): query_tensors= batch["input_ids"]### Get response from SFTModelresponse_...
PPOTrainer是RLLib中针对PPO算法的训练器。PPO是一种常用的增强学习算法,用于优化策略模型。它通过不断迭代更新模型的策略参数,使得模型能够逐步优化并适应环境。 当我们需要对PPOTrainer进行调整时,可能需要关注以下几个方面: 超参数调整:PPOTrainer有一些重要的超参数,如学习率、折扣因子、回合长度等。调整这些超参数可...
作为单一继承的class trl.PPOTrainer PPOTrainer继承自BaseTrainer, BaseTrainer继承自PyTorchModelHubMixin,PyTorchModelHubMixin继承自ModelHubMixin。 举个例子: class A: def methodA(self): print("This is method A") class B(A): def methodB(self): print("This is method B") class C(B): def met...
本期code:https://github.com/chunhuizhang/personal_chatgpt/blob/main/tutorials/trl_hf/trl_ppotrainer_helloworld.ipynb trpo 基础:https://www.bilibili.com/video/BV1hD421K7gG/ ppo 基础:https://www.bilibili.com/video/BV11J4m137fY/ trl reward model:https://www.bilibili.com/video/BV1GZ421t7...
device if ppo_trainer.accelerator.num_processes == 1: device = 0 if torch.cuda.is_available() else "cpu" # to avoid a ` pipeline` bug sentiment_pipe = pipeline( "sentiment-analysis", model=reward_model_name, device_map={"": device}, model_kwargs={"load_in_8bit": True}, ...
1. 设置和查看lustre参数 创建文件系统时，使用mkfs.lustre。 当服务器停止运行时，使用use trnefs....
ppo_trainer.py reward_trainer.py sft_trainer.py training_configs.py utils.py __init__.py core.py import_utils.py .gitignore .pre-commit-config.yaml CITATION.cff CONTRIBUTING.md LICENSE MANIFEST.in Makefile README.md pyproject.toml
structFSharedMemoryPPOTrainer:publicUE::Learning::IPPOTrainerCopy full snippet Remarks Trainer that uses shared memory and a Python sub-process to perform training This trainer is the most simple and efficient when training the policy on the same computer that experience is being gathered on. ...
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In general you can always use the transformers.Trainer to do just that and everything in we add in trl would anyway just be a wrapper around it. Author yixiaoer commented Sep 11, 2023 I also meet the error if I want to use Roberta/Bert to train with PPO instead of RewardTrain, ...