mirror of
https://github.com/NVIDIA/cuda-samples.git
synced 2024-12-01 13:09:15 +08:00
73 lines
2.7 KiB
C++
73 lines
2.7 KiB
C++
/* Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* * Neither the name of NVIDIA CORPORATION nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
|
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <curand.h>
|
|
#include <string>
|
|
|
|
// RNGs
|
|
class RNG
|
|
{
|
|
public:
|
|
enum RngType {Pseudo, Quasi, ScrambledQuasi};
|
|
RNG(unsigned long prngSeed, unsigned int qrngDimensions, unsigned int nSamples);
|
|
virtual ~RNG();
|
|
|
|
float getNextU01(void);
|
|
void getInfoString(std::string &msg);
|
|
void selectRng(RngType type);
|
|
void resetSeed(void);
|
|
void resetDimensions(void);
|
|
void incrementDimensions(void);
|
|
|
|
private:
|
|
// Generators
|
|
curandGenerator_t *m_pCurrent;
|
|
curandGenerator_t m_prng;
|
|
curandGenerator_t m_qrng;
|
|
curandGenerator_t m_sqrng;
|
|
|
|
// Parameters
|
|
unsigned long m_prngSeed;
|
|
unsigned int m_qrngDimensions;
|
|
|
|
// Batches
|
|
const unsigned int m_nSamplesBatchTarget;
|
|
unsigned int m_nSamplesBatchActual;
|
|
unsigned int m_nSamplesRemaining;
|
|
void generateBatch(void);
|
|
|
|
// Helpers
|
|
void updateDimensions(void);
|
|
void setBatchSize(void);
|
|
|
|
// Buffers
|
|
float *m_h_samples;
|
|
float *m_d_samples;
|
|
|
|
static const unsigned int s_maxQrngDimensions;
|
|
};
|