import random
import torch
import numpy as np
import os

def set_seed(seed: int = 42):
    random.seed(seed)
    np.random.seed(seed)
    torch.manual_seed(seed)
    torch.cuda.manual_seed(seed)       # current GPU
    torch.cuda.manual_seed_all(seed)   # all GPUs

    # Ensure deterministic behavior
    torch.backends.cudnn.deterministic = True
    torch.backends.cudnn.benchmark = False

    # For PyTorch >= 1.8
    os.environ["CUBLAS_WORKSPACE_CONFIG"] = ":4096:8"
    torch.use_deterministic_algorithms(True, warn_only=True)