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Paddle/paddle/fluid/operators/allclose_op.h

62 lines
2.1 KiB

// Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include "paddle/fluid/framework/eigen.h"
#include "paddle/fluid/framework/operator.h"
#include "paddle/fluid/platform/place.h"
namespace paddle {
namespace operators {
using Tensor = framework::Tensor;
template <typename DeviceContext, typename T>
class AllcloseKernel : public framework::OpKernel<T> {
public:
void Compute(const framework::ExecutionContext& ctx) const override {
// get attrs
float rtol = ctx.Attr<float>("rtol");
float atol = ctx.Attr<float>("atol");
bool equal_nan = ctx.Attr<bool>("equal_nan");
// get input/output
auto* input = ctx.Input<Tensor>("Input");
auto* other = ctx.Input<Tensor>("Other");
auto* out = ctx.Output<Tensor>("Out");
out->mutable_data<bool>(ctx.GetPlace());
// get place
auto& place = *ctx.template device_context<DeviceContext>().eigen_device();
auto input_v = framework::EigenVector<T>::Flatten(*input);
auto other_v = framework::EigenVector<T>::Flatten(*other);
auto out_v = framework::EigenScalar<bool>::From(*out);
auto left = (input_v - other_v).abs();
auto right = static_cast<T>(atol) + static_cast<T>(rtol) * other_v.abs();
auto compare_res = left <= right;
if (equal_nan) {
auto input_nan = input_v.isnan();
auto other_nan = other_v.isnan();
out_v.device(place) =
(input_nan == other_nan).all() && (compare_res != input_nan).all();
} else {
out_v.device(place) = compare_res.all();
}
}
};
} // namespace operators
} // namespace paddle