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faster_pytorch's Introduction

Faster

Single-machine multi-GPU

Run Time

vanilla DP DP+AMP DDP DDP+AMP
10 epcohs/s 82.95 78.88 77.45 44.00 37.96
  • vanilla: 1 GPU
  • DP: 2 GPUs with torch.nn.DataParallel
  • DP + AMP: 2 GPUs with torch.nn.DataParallel and torch.cuda.amp
  • DDP: 2 GPUs with torch.nn.parallel.DistributedDataParallel
  • DDP + AMP: 2 GPUs with torch.nn.parallel.DistributedDataParallel and torch.cuda.amp

Usage

# vanilla
python baseline.py --workers 8
# DP
python baseline.py --workers 8 --dp
# DP + AMP
python baseline.py --workers 8 --dp  --amp
# DDP
python -m torch.distributed.launch --nproc_per_node=2 faster.py --workers 8
# DDP + AMP
python -m torch.distributed.launch --nproc_per_node=2 faster.py --workers 8 --amp

faster_pytorch's People

Contributors

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