wehub-resource-sync
89 lines
3.1 KiB
C++
89 lines
3.1 KiB
C++
// Copyright (c) 2024 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 <random>
|
|
#include "paddle/phi/common/data_type.h"
|
|
|
|
namespace phi {
|
|
|
|
template <typename T>
|
|
inline void NormalDistribution(T* data,
|
|
const int64_t& size,
|
|
const float& mean,
|
|
const float& std,
|
|
std::shared_ptr<std::mt19937_64> engine) {
|
|
std::normal_distribution<T> dist(mean, std);
|
|
for (int64_t i = 0; i < size; ++i) {
|
|
data[i] = dist(*engine);
|
|
}
|
|
}
|
|
|
|
template <>
|
|
inline void NormalDistribution(phi::float16* data,
|
|
const int64_t& size,
|
|
const float& mean,
|
|
const float& std,
|
|
std::shared_ptr<std::mt19937_64> engine) {
|
|
std::normal_distribution<float> dist(mean, std);
|
|
for (int64_t i = 0; i < size; ++i) {
|
|
data[i] = static_cast<phi::float16>(dist(*engine));
|
|
}
|
|
}
|
|
|
|
template <>
|
|
inline void NormalDistribution(phi::bfloat16* data,
|
|
const int64_t& size,
|
|
const float& mean,
|
|
const float& std,
|
|
std::shared_ptr<std::mt19937_64> engine) {
|
|
std::normal_distribution<float> dist(mean, std);
|
|
for (int64_t i = 0; i < size; ++i) {
|
|
data[i] = static_cast<phi::bfloat16>(dist(*engine));
|
|
}
|
|
}
|
|
|
|
template <>
|
|
inline void NormalDistribution(phi::complex64* data,
|
|
const int64_t& size,
|
|
const float& mean,
|
|
const float& std,
|
|
std::shared_ptr<std::mt19937_64> engine) {
|
|
float std_of_real_or_imag = std::sqrt(std::pow(std, 2) / 2);
|
|
std::normal_distribution<float> dist(mean, std_of_real_or_imag);
|
|
for (int64_t i = 0; i < size; ++i) {
|
|
float real = dist(*engine);
|
|
float imag = dist(*engine);
|
|
data[i] = phi::complex64(real, imag);
|
|
}
|
|
}
|
|
|
|
template <>
|
|
inline void NormalDistribution(phi::complex128* data,
|
|
const int64_t& size,
|
|
const float& mean,
|
|
const float& std,
|
|
std::shared_ptr<std::mt19937_64> engine) {
|
|
float std_of_real_or_imag = std::sqrt(std::pow(std, 2) / 2);
|
|
std::normal_distribution<double> dist(mean, std_of_real_or_imag);
|
|
for (int64_t i = 0; i < size; ++i) {
|
|
double real = dist(*engine);
|
|
double imag = dist(*engine);
|
|
data[i] = phi::complex128(real, imag);
|
|
}
|
|
}
|
|
|
|
} // namespace phi
|