tools/data_process/process/launch_process.py

import os
from multiprocessing import Process

num_workers = 8
worker_ids = list(range(num_workers))
cuda_devices = [i % 8 for i in range(num_workers)]

def func(worker_id, cuda_device):
    os.system(f"CUDA_VISIBLE_DEVICES={cuda_device} python -m data.process_seed_smpl --start_idx {worker_id} --interval {num_workers}")

if __name__ == "__main__":
    works = []
    for worker_id, cuda_device in zip(worker_ids, cuda_devices):
        process = Process(target=func, args=(worker_id, cuda_device))
        process.start()
        works.append(process)
        
    for process in works:
        process.join()