Program Listing for File rocrand_scrambled_sobol32.h
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// Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.
//
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// in the Software without restriction, including without limitation the rights
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// 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
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#ifndef ROCRAND_SCRAMBLED_SOBOL32_H_
#define ROCRAND_SCRAMBLED_SOBOL32_H_
#ifndef FQUALIFIERS
#define FQUALIFIERS __forceinline__ __device__
#endif // FQUALIFIERS_
#include "rocrand/rocrand_common.h"
#include "rocrand/rocrand_sobol32.h"
namespace rocrand_device
{
template<bool UseSharedVectors>
class scrambled_sobol32_engine
{
public:
FQUALIFIERS
scrambled_sobol32_engine() {}
FQUALIFIERS
scrambled_sobol32_engine(const unsigned int* vectors,
const unsigned int scramble_constant,
const unsigned int offset)
: m_engine(vectors, 0), scramble_constant(scramble_constant)
{
discard(offset);
}
FQUALIFIERS
void discard(unsigned int offset)
{
m_engine.discard(offset);
}
FQUALIFIERS
void discard()
{
m_engine.discard();
}
FQUALIFIERS
void discard_stride(unsigned int stride)
{
m_engine.discard_stride(stride);
}
FQUALIFIERS
unsigned int operator()()
{
return this->next();
}
FQUALIFIERS
unsigned int next()
{
unsigned int p = m_engine.next();
return p ^ scramble_constant;
}
FQUALIFIERS
unsigned int current()
{
unsigned int p = m_engine.current();
return p ^ scramble_constant;
}
protected:
// Underlying sobol32 engine
sobol32_engine<UseSharedVectors> m_engine;
// scrambling constant
unsigned int scramble_constant;
}; // scrambled_sobol32_engine class
} // end namespace rocrand_device
typedef rocrand_device::scrambled_sobol32_engine<false> rocrand_state_scrambled_sobol32;
FQUALIFIERS
void rocrand_init(const unsigned int* vectors,
const unsigned int scramble_constant,
const unsigned int offset,
rocrand_state_scrambled_sobol32* state)
{
*state = rocrand_state_scrambled_sobol32(vectors, scramble_constant, offset);
}
FQUALIFIERS
unsigned int rocrand(rocrand_state_scrambled_sobol32* state)
{
return state->next();
}
FQUALIFIERS
void skipahead(unsigned long long offset, rocrand_state_scrambled_sobol32* state)
{
return state->discard(offset);
}
// end of group rocranddevice
#endif // ROCRAND_SCRAMBLED_SOBOL32_H_