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Runtime error
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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()
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