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67 lines
2.4 KiB
67 lines
2.4 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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#include "paddle/fluid/operators/is_empty_op.h"
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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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class IsEmptyOp : public framework::OperatorWithKernel {
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public:
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using framework::OperatorWithKernel::OperatorWithKernel;
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protected:
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void InferShape(framework::InferShapeContext *ctx) const override {
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PADDLE_ENFORCE(ctx->HasInput("X"),
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"Input(X) of IsEmptyOp should not be null.");
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PADDLE_ENFORCE(ctx->HasOutput("Out"),
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"Output(Out) of IsEmptyOp should not be null.");
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ctx->SetOutputDim("Out", {1});
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}
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framework::OpKernelType GetExpectedKernelType(
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const framework::ExecutionContext &ctx) const override {
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auto *x = ctx.Input<framework::LoDTensor>("X");
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return framework::OpKernelType(x->type(), x->place());
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}
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};
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class IsEmptyOpMaker : public framework::OpProtoAndCheckerMaker {
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public:
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void Make() override {
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AddInput("X", "(LoDTensor) Tensor which is to be checked.");
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AddOutput("Out",
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"(LoDTensor) a boolean Tensor that indicate empty or not.");
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AddComment(R"DOC(
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IsEmpty Operator which checks whether a tensor is empty.
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It will just return product(tensor.ddims()) > 0;
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)DOC");
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}
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};
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} // namespace operators
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} // namespace paddle
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namespace ops = paddle::operators;
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REGISTER_OPERATOR(is_empty, ops::IsEmptyOp, ops::IsEmptyOpMaker,
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paddle::framework::EmptyGradOpMaker);
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REGISTER_OP_CPU_KERNEL(
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is_empty, ops::IsEmptyOpKernel<paddle::platform::CPUDeviceContext, float>,
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ops::IsEmptyOpKernel<paddle::platform::CPUDeviceContext, double>,
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ops::IsEmptyOpKernel<paddle::platform::CPUDeviceContext, int>,
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ops::IsEmptyOpKernel<paddle::platform::CPUDeviceContext, int64_t>);
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