| import os | |
| import time | |
| import torch | |
| import sys | |
| import subprocess | |
| argslist = list(sys.argv)[1:] | |
| log_dir = argslist[-1] | |
| num_gpus = torch.cuda.device_count() | |
| argslist.append('--n_gpus={}'.format(num_gpus)) | |
| workers = [] | |
| job_id = time.strftime("%Y_%m_%d-%H%M%S") | |
| argslist.append("--group_name=group_{}".format(job_id)) | |
| print("GPU log directory is {}".format(log_dir)) | |
| os.makedirs(log_dir, exist_ok=True) | |
| for i in range(num_gpus): | |
| argslist.append('--rank={}'.format(i)) | |
| stdout = None if i == 0 else open("{}/{}_GPU_{}.log".format(log_dir, job_id, i), | |
| "w") | |
| print(argslist) | |
| p = subprocess.Popen([str(sys.executable)]+argslist, stdout=stdout) | |
| workers.append(p) | |
| argslist = argslist[:-1] | |
| for p in workers: | |
| p.wait() | |