随机性问题

def seed_everything(seed):
    random.seed(seed)
    np.random.seed(seed)
    os.environ['PYTHONHASHSEED'] = str(seed)
    torch.manual_seed(seed)
    torch.cuda.manual_seed(seed)
    torch.cuda.manual_seed_all(seed)

    torch.backends.cudnn.deterministic = True
    torch.backends.cudnn.benchmark = False

    # See https://pytorch.org/docs/stable/generated/torch.use_deterministic_algorithms.html
    os.environ['CUBLAS_WORKSPACE_CONFIG'] = ':4096:8'

    # See https://pytorch.org/docs/stable/notes/randomness.html
    torch.use_deterministic_algorithms(True, warn_only=True)
    torch.backends.cuda.matmul.allow_tf32=False
    torch.backends.cudnn.allow_tf32 =False