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93 lines
3.6 KiB
93 lines
3.6 KiB
/* Copyright (c) 2020 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/histogram_op.h"
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#include <string>
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#include <unordered_map>
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#include <vector>
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namespace paddle {
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namespace operators {
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using framework::OpKernelType;
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using framework::Tensor;
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class HistogramOp : public framework::OperatorWithKernel {
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public:
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using framework::OperatorWithKernel::OperatorWithKernel;
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void InferShape(framework::InferShapeContext *ctx) const override {
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OP_INOUT_CHECK(ctx->HasInput("X"), "Input", "X", "histogram");
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OP_INOUT_CHECK(ctx->HasOutput("Out"), "Output", "Out", "histogram");
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const auto &nbins = ctx->Attrs().Get<int64_t>("bins");
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const auto &minval = ctx->Attrs().Get<int>("min");
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const auto &maxval = ctx->Attrs().Get<int>("max");
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PADDLE_ENFORCE_GE(nbins, 1,
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platform::errors::InvalidArgument(
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"The bins should be greater than or equal to 1."
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"But received nbins is %d",
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nbins));
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PADDLE_ENFORCE_GE(maxval, minval, platform::errors::InvalidArgument(
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"max must be larger or equal to min."
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"But received max is %d, min is %d",
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maxval, minval));
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ctx->SetOutputDim("Out", framework::make_ddim({nbins}));
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ctx->ShareLoD("X", /*->*/ "Out");
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}
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framework::OpKernelType GetExpectedKernelType(
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const framework::ExecutionContext &ctx) const {
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auto data_type = OperatorWithKernel::IndicateVarDataType(ctx, "X");
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return framework::OpKernelType(data_type, ctx.device_context());
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}
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};
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class HistogramOpMaker : public framework::OpProtoAndCheckerMaker {
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public:
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void Make() override {
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AddInput("X", "(Tensor) The input tensor of Histogram op,");
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AddOutput("Out", "(Tensor) The output tensor of Histogram op,");
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AddAttr<int64_t>("bins", "(int) number of histogram bins")
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.SetDefault(100)
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.EqualGreaterThan(1);
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AddAttr<int>("min", "(int) lower end of the range (inclusive)")
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.SetDefault(0);
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AddAttr<int>("max", "(int) upper end of the range (inclusive)")
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.SetDefault(0);
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AddComment(R"DOC(
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Histogram Operator.
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Computes the histogram of a tensor. The elements are sorted
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into equal width bins between min and max. If min and max are
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both zero, the minimum and maximum values of the data are used.
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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(
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histogram, ops::HistogramOp, ops::HistogramOpMaker,
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paddle::framework::EmptyGradOpMaker<paddle::framework::OpDesc>,
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paddle::framework::EmptyGradOpMaker<paddle::imperative::OpBase>);
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REGISTER_OP_CPU_KERNEL(
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histogram, ops::HistogramKernel<paddle::platform::CPUDeviceContext, float>,
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ops::HistogramKernel<paddle::platform::CPUDeviceContext, double>,
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ops::HistogramKernel<paddle::platform::CPUDeviceContext, int>,
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ops::HistogramKernel<paddle::platform::CPUDeviceContext, int64_t>);
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