[BugFix] Make program thread-local to support multi-threading #338
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lingfanyu
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@yzh119 This PR should fix the multi-gpu issue. Can you double check? |
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Thanks, the PR solved my problem. |
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Lingfan, could you run treelstm on multi gpu to see the improvement?
…On Sat, Jan 5, 2019, 2:18 PM Zihao Ye ***@***.***> wrote:
Thanks, the PR solved my problem.
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well, i find that currently enabling multi-GPU could not speed up training, the number of active GPUs is always one during training. |
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@yzh119 Sounds weird. When I ran your transformer on a 4-GPU instance, all GPUs were active but with low utilization (<25%). |
jermainewang
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Jan 12, 2019
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Description
DGLGraph uses one global execution plan / program, which leads to data racing when multi-threading (like PyTorch DataParallel) is used. This PR fix this bug by making schedule a threading.local object. (#302)
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or have been fixed to be compatible with this change
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