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#ifndef CAFFE2_OPERATORS_COPY_OP_H_
#define CAFFE2_OPERATORS_COPY_OP_H_
#include "caffe2/core/context.h"
#include "caffe2/core/export_caffe2_op_to_c10.h"
#include "caffe2/core/operator.h"
C10_DECLARE_EXPORT_CAFFE2_OP_TO_C10(CopyGPUToCPU)
C10_DECLARE_EXPORT_CAFFE2_OP_TO_C10(CopyCPUToGPU)
namespace caffe2 {
template <class Context, class DstContext, class SrcContext>
class CopyOp : public Operator<Context> {
public:
USE_OPERATOR_CONTEXT_FUNCTIONS;
USE_SIMPLE_CTOR_DTOR(CopyOp)
bool RunOnDevice() override {
auto& input = this->template Input<Tensor>(0, SrcContext::GetDeviceType());
auto* output =
this->template Output<Tensor>(0, DstContext::GetDeviceType());
output->ResizeLike(input);
this->context_.template CopyItems<SrcContext, DstContext>(
input.dtype(),
input.numel(),
input.raw_data(),
output->raw_mutable_data(input.dtype()));
return true;
}
};
template <class Context, class DstContext, class SrcContext>
class CopyOnDeviceLikeOp : public CopyOp<Context, DstContext, SrcContext> {
public:
template <class... Args>
explicit CopyOnDeviceLikeOp(Args&&... args)
: CopyOp<Context, DstContext, SrcContext>(std::forward<Args>(args)...) {}
};
} // namespace caffe2
#endif // CAFFE2_OPERATORS_COPY_OP_H_
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