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Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/32248 expose CPU/GPU copy ops Test Plan: buck test mode/dev-nosan caffe2/caffe2/python/operator_test:torch_integration_test Reviewed By: houseroad Differential Revision: D19405856 fbshipit-source-id: 1df4aa202e26647cb81e9fe7e4478e594a5f7f3e
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
#ifndef CAFFE2_OPERATORS_COPY_OP_H_
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#define CAFFE2_OPERATORS_COPY_OP_H_
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#include "caffe2/core/context.h"
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#include "caffe2/core/export_caffe2_op_to_c10.h"
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#include "caffe2/core/operator.h"
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C10_DECLARE_EXPORT_CAFFE2_OP_TO_C10(CopyGPUToCPU)
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C10_DECLARE_EXPORT_CAFFE2_OP_TO_C10(CopyCPUToGPU)
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namespace caffe2 {
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template <class Context, class DstContext, class SrcContext>
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class CopyOp : public Operator<Context> {
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public:
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USE_OPERATOR_CONTEXT_FUNCTIONS;
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USE_SIMPLE_CTOR_DTOR(CopyOp)
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bool RunOnDevice() override {
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auto& input = this->template Input<Tensor>(0, SrcContext::GetDeviceType());
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auto* output =
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this->template Output<Tensor>(0, DstContext::GetDeviceType());
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output->ResizeLike(input);
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this->context_.template CopyItems<SrcContext, DstContext>(
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input.dtype(),
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input.numel(),
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input.raw_data(),
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output->raw_mutable_data(input.dtype()));
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return true;
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}
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};
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template <class Context, class DstContext, class SrcContext>
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class CopyOnDeviceLikeOp : public CopyOp<Context, DstContext, SrcContext> {
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public:
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template <class... Args>
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explicit CopyOnDeviceLikeOp(Args&&... args)
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: CopyOp<Context, DstContext, SrcContext>(std::forward<Args>(args)...) {}
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};
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} // namespace caffe2
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#endif // CAFFE2_OPERATORS_COPY_OP_H_
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