enable multi-gpu training ( torch.nn.DataParallel) - #400
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On a dual-RTX3090 setup, this increased speed from roughly 3.6 to 4 iters/s, a modest 11% speed increase.. GPU #0 runs at ~93% utilization and GPU xuebinqin#1 runs at ~10% utilization, Not sure why GPU xuebinqin#1 is so under-utilized, but it does get faster.
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On a dual-RTX3090 setup, this
increased speed from roughly 3.6 to 4.1 iters/s,
a modest 14% speed increase..
GPU0 runs at ~93% and GPU1 runs at ~10%,
Not sure why GPU1 is so under-utilized,
but it does get faster.