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/*! \file */
/* ************************************************************************
* Copyright (C) 2023-2024 Advanced Micro Devices, Inc. All rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* ************************************************************************ */
#include "rocsparse_random.hpp"
#include "rocsparse_reproducibility.hpp"
#include <iostream>
// Random number generator
// Note: We do not use random_device to initialize the RNG, because we want
// repeatability in case of test failure. TODO: Add seed as an optional CLI
// argument, and print the seed on output, to ensure repeatability.
rocsparse_rng_t rocsparse_rng(69069);
rocsparse_rng_t rocsparse_rng_nan(69069);
rocsparse_rng_t rocsparse_seed(rocsparse_rng);
void rocsparse_seedrand()
{
rocsparse_rng_set(rocsparse_seed_get());
rocsparse_rng_nan_set(rocsparse_seed_get());
rocsparse_rand_uniform_float_idx = 0;
rocsparse_rand_uniform_double_idx = 0;
rocsparse_rand_normal_double_idx = 0;
}
void rocsparse_rng_set(rocsparse_rng_t a)
{
rocsparse_rng = a;
}
void rocsparse_seed_set(rocsparse_rng_t a)
{
rocsparse_seed = a;
}
void rocsparse_rng_nan_set(rocsparse_rng_t a)
{
rocsparse_rng_nan = a;
}
rocsparse_rng_t& rocsparse_rng_get()
{
return rocsparse_rng;
}
rocsparse_rng_t& rocsparse_seed_get()
{
return rocsparse_seed;
}
rocsparse_rng_t& rocsparse_rng_nan_get()
{
return rocsparse_rng_nan;
}
#define RANDOM_CACHE_SIZE 1024
int rocsparse_rand_uniform_float_idx;
int rocsparse_rand_uniform_double_idx;
int rocsparse_rand_normal_double_idx;
static int s_rand_uniform_float_init = 0;
static int s_rand_uniform_double_init = 0;
static int s_rand_normal_double_init = 0;
// float random uniform numbers between 0.0f - 1.0f
static float s_rand_uniform_float_array[RANDOM_CACHE_SIZE];
// double random uniform numbers between 0.0 - 1.0
static double s_rand_uniform_double_array[RANDOM_CACHE_SIZE];
// double random normal numbers between 0.0 - 1.0
static double s_rand_normal_double_array[RANDOM_CACHE_SIZE];
float rocsparse_uniform_float(float a, float b)
{
if(!s_rand_uniform_float_init)
{
for(int i = 0; i < RANDOM_CACHE_SIZE; i++)
{
s_rand_uniform_float_array[i]
= std::uniform_real_distribution<float>(0.0f, 1.0f)(rocsparse_rng_get());
}
s_rand_uniform_float_init = 1;
if(rocsparse_reproducibility_t::instance().is_enabled())
rocsparse_seedrand();
}
rocsparse_rand_uniform_float_idx
= (rocsparse_rand_uniform_float_idx + 1) & (RANDOM_CACHE_SIZE - 1);
return a + s_rand_uniform_float_array[rocsparse_rand_uniform_float_idx] * (b - a);
}
double rocsparse_uniform_double(double a, double b)
{
if(!s_rand_uniform_double_init)
{
for(int i = 0; i < RANDOM_CACHE_SIZE; i++)
{
s_rand_uniform_double_array[i]
= std::uniform_real_distribution<double>(0.0, 1.0)(rocsparse_rng_get());
}
s_rand_uniform_double_init = 1;
if(rocsparse_reproducibility_t::instance().is_enabled())
rocsparse_seedrand();
}
rocsparse_rand_uniform_double_idx
= (rocsparse_rand_uniform_double_idx + 1) & (RANDOM_CACHE_SIZE - 1);
return a + s_rand_uniform_double_array[rocsparse_rand_uniform_double_idx] * (b - a);
}
int rocsparse_uniform_int(int a, int b)
{
return rocsparse_uniform_float(static_cast<float>(a), static_cast<float>(b));
}
double rocsparse_normal_double()
{
if(!s_rand_normal_double_init)
{
for(int i = 0; i < RANDOM_CACHE_SIZE; i++)
{
s_rand_normal_double_array[i]
= std::normal_distribution<double>(0.0, 1.0)(rocsparse_rng_get());
}
s_rand_normal_double_init = 1;
if(rocsparse_reproducibility_t::instance().is_enabled())
rocsparse_seedrand();
}
rocsparse_rand_normal_double_idx
= (rocsparse_rand_normal_double_idx + 1) & (RANDOM_CACHE_SIZE - 1);
return s_rand_normal_double_array[rocsparse_rand_normal_double_idx];
}
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