apeforest commented on a change in pull request #12031: Fix CPUPinned
unexpected behaviour
URL: https://github.com/apache/incubator-mxnet/pull/12031#discussion_r226127138
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File path: src/kvstore/kvstore_nccl.h
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@@ -428,6 +428,7 @@ class KVStoreNCCL : public KVStoreLocal {
mutate_vars.push_back(ptr(dst[i])->var());
}
Engine::Get()->PushSync([this](RunContext rctx) {
+ mxnet::common::cuda::SetDevice set_device;
for (auto cur : nccl_data_) {
CUDA_CALL(cudaSetDevice(cur.second.dev_id));
Review comment:
same here
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