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add deterministic flag + functionality #853

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4 changes: 4 additions & 0 deletions train.py
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Original file line number Diff line number Diff line change
Expand Up @@ -242,6 +242,8 @@
# Misc
parser.add_argument('--seed', type=int, default=42, metavar='S',
help='random seed (default: 42)')
parser.add_argument('--deterministic', action='store_true', default=False,
help="Whether to use deterministic algorithms (may slightly decrease run time performance)")
parser.add_argument('--log-interval', type=int, default=50, metavar='N',
help='how many batches to wait before logging training status')
parser.add_argument('--recovery-interval', type=int, default=0, metavar='N',
Expand Down Expand Up @@ -345,6 +347,8 @@ def main():
"Install NVIDA apex or upgrade to PyTorch 1.6")

random_seed(args.seed, args.rank)
# NOTE we want to make sure deterministic is set after random_seed
torch.backends.cudnn.deterministic = args.deterministic

model = create_model(
args.model,
Expand Down