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Add SetDeviceId in memcpy

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cblas_new
liaogang 8 years ago
parent 0897d18a0a
commit b3115fb01c
1 changed files with 9 additions and 4 deletions
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13
paddle/memory/memory.cc
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@ -86,18 +86,22 @@ size_t Used<platform::GPUPlace>(platform::GPUPlace place) {
}
template <>
void Copy<platform::CPUPlace, platform::GPUPlace>(platform::CPUPlace, void* dst,
platform::GPUPlace,
void Copy<platform::CPUPlace, platform::GPUPlace>(platform::CPUPlace dst_place,
void* dst,
platform::GPUPlace src_place,
const void* src, size_t num,
cudaStream_t stream) {
platform::SetDeviceId(src_place.device);
platform::GpuMemcpyAsync(dst, src, num, cudaMemcpyDeviceToHost, stream);
}
template <>
void Copy<platform::GPUPlace, platform::CPUPlace>(platform::GPUPlace, void* dst,
platform::CPUPlace,
void Copy<platform::GPUPlace, platform::CPUPlace>(platform::GPUPlace dst_place,
void* dst,
platform::CPUPlace src_place,
const void* src, size_t num,
cudaStream_t stream) {
platform::SetDeviceId(dst_place.device);
platform::GpuMemcpyAsync(dst, src, num, cudaMemcpyHostToDevice, stream);
}
@ -108,6 +112,7 @@ void Copy<platform::GPUPlace, platform::GPUPlace>(platform::GPUPlace dst_place,
const void* src, size_t num,
cudaStream_t stream) {
if (dst_place == src_place) {
platform::SetDeviceId(src_place.device);
platform::GpuMemcpyAsync(dst, src, num, cudaMemcpyDeviceToDevice, stream);
} else {
platform::GpuMemcpyPeer(dst, dst_place.device, src, src_place.device, num,

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