EVOLUTION-MANAGER

Edit File: random_op.h

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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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,
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==============================================================================*/

#ifndef TENSORFLOW_CORE_KERNELS_RANDOM_OP_H_
#define TENSORFLOW_CORE_KERNELS_RANDOM_OP_H_

#include "third_party/eigen3/unsupported/Eigen/CXX11/Tensor"
#include "tensorflow/core/lib/random/random_distributions.h"

namespace tensorflow {

class OpKernelContext;

namespace functor {

template <typename Device, class Distribution>
struct FillPhiloxRandom;

typedef Eigen::ThreadPoolDevice CPUDevice;
// Declares the partially CPU-specialized functor struct.
//
// NOTE: Due to inlining done by the compiler, you may need to add
// explicit instantiation of the functor in random_op.cc.  See example
// functor::FillPhiloxRandom<CPUDevice, random::UniformDistribution>.
//
// This functor can take the PhiloxRandom input from either device memory `key`
// and `counter` or a stack value `gen`. If both `key` and `counter` are not
// nullptr, they provide the input; otherwise `gen` provides the input.
template <class Distribution>
struct FillPhiloxRandom<CPUDevice, Distribution> {
  void operator()(OpKernelContext* ctx, const CPUDevice& d, const uint64* key,
                  const uint64* counter, random::PhiloxRandom gen,
                  typename Distribution::ResultElementType* data, int64 size,
                  Distribution dist);
};

#if GOOGLE_CUDA || TENSORFLOW_USE_ROCM
typedef Eigen::GpuDevice GPUDevice;
// Declares the partially GPU-specialized functor struct.
template <class Distribution>
struct FillPhiloxRandom<GPUDevice, Distribution> {
  void operator()(OpKernelContext* ctx, const GPUDevice& d, const uint64* key,
                  const uint64* counter, random::PhiloxRandom gen,
                  typename Distribution::ResultElementType* data, int64 size,
                  Distribution dist);
};
#endif  // GOOGLE_CUDA || TENSORFLOW_USE_ROCM

}  // namespace functor
}  // namespace tensorflow

#endif  // TENSORFLOW_CORE_KERNELS_RANDOM_OP_H_