41 lines
1.4 KiB
41 lines
1.4 KiB
/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License. */
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#pragma once
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#include "paddle/fluid/framework/op_registry.h"
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#include "paddle/fluid/framework/operator.h"
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namespace paddle {
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namespace operators {
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template <typename DeviceContext, typename T>
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class IsEmptyOpKernel : public framework::OpKernel<T> {
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public:
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void Compute(const framework::ExecutionContext& context) const override {
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// get input
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auto* input_tensor = context.Input<framework::LoDTensor>("X");
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// get output
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auto* output_tensor = context.Output<framework::LoDTensor>("Out");
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// Note: is_empty is always executed on CPU and the output data should
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// always be allocated for CPUPlace. We reigister CUDA kernel for this op to
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// avoid the unnecessary data transform.
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output_tensor->mutable_data<bool>(platform::CPUPlace())[0] =
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framework::product(input_tensor->dims()) == 0;
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}
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};
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} // namespace operators
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} // namespace paddle
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