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#include "caffe2/contrib/gloo/common_world_ops.h"
#include "caffe2/core/context_gpu.h"
#include <gloo/cuda.h>
#include <gloo/transport/tcp/device.h>
namespace caffe2 {
namespace gloo {
template <>
void CreateCommonWorld<CUDAContext>::initializeForContext() {
static std::once_flag once;
std::call_once(once, [&]() {
// This is the first time we call Gloo code for a CUDAContext.
// Share Caffe2 CUDA mutex with Gloo.
::gloo::CudaShared::setMutex(&CUDAContext::mutex());
});
}
namespace {
REGISTER_CUDA_OPERATOR_WITH_ENGINE(
CreateCommonWorld,
GLOO,
CreateCommonWorld<CUDAContext>);
REGISTER_CUDA_OPERATOR_WITH_ENGINE(
CloneCommonWorld,
GLOO,
CloneCommonWorld<CUDAContext>);
} // namespace
} // namespace gloo
} // namespace caffe2
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