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Summary: This directory is opted-in to clang-format but is not format-clean. This blocks continuous formatting from being enabled on fbcode, and causes hassle for other codemods that leave inconsistent formatting. This diff runs clang-format, which is widely used and considered safe. If you are unhappy with the formatting of a particular block, please *accept this diff* and then in a stacked commit undo the change and wrap that code in `// clang-format off` and `// clang-format on`, or `/* clang-format off */` and `/* clang-format on */`. drop-conflicts Test Plan: sandcastleit Reviewed By: jerryzh168 Differential Revision: D22311706 fbshipit-source-id: 1ca59a82e96156a4a5dfad70ba3e64d44c5e762a
53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
#ifndef CAFFE2_OPERATORS_ENSURE_CPU_OUTPUT_OP_H_
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#define CAFFE2_OPERATORS_ENSURE_CPU_OUTPUT_OP_H_
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#include "caffe2/core/context.h"
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#include "caffe2/core/operator.h"
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#include "caffe2/utils/math.h"
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namespace caffe2 {
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template <class Context>
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class EnsureCPUOutputOp : public Operator<Context> {
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public:
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USE_OPERATOR_CONTEXT_FUNCTIONS;
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template <class... Args>
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explicit EnsureCPUOutputOp(Args&&... args)
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: Operator<Context>(std::forward<Args>(args)...) {}
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bool RunOnDevice() override {
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if (this->InputIsTensorType(0, CPU)) {
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return CopyWithContext<CPUContext>();
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} else if (this->InputIsTensorType(0, Context::GetDeviceType())) {
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// CUDA Context will go this branch
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return CopyWithContext<Context>();
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} else {
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CAFFE_THROW(
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"Unexpected Input Blob: ",
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OperatorBase::Inputs().at(0)->meta().name());
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}
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return true;
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}
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private:
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template <class InputContext>
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bool CopyWithContext() {
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// Output is always on CPU
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auto* output = this->template Output<Tensor>(0, CPU);
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auto& input =
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this->template Input<Tensor>(0, InputContext::GetDeviceType());
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output->ResizeLike(input);
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context_.CopyItemsToCPU(
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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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context_.FinishDeviceComputation();
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return true;
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}
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};
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} // namespace caffe2
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#endif // CAFFE2_OPERATORS_ENSURE_CPU_OUTPUT_OP_H_
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