53 #ifndef ROCRAND_THREEFRY2X32_20_H_
54 #define ROCRAND_THREEFRY2X32_20_H_
57 #define FQUALIFIERS __forceinline__ __device__
60 #include "rocrand/rocrand_threefry2_impl.h"
62 namespace rocrand_device
65 class threefry2x32_20_engine :
public threefry_engine2_base<uint2, unsigned int, 20>
68 typedef threefry_engine2_base<uint2, unsigned int, 20>::threefry_state_2 threefry2x32_20_state;
75 FQUALIFIERS threefry2x32_20_engine(
const unsigned long long seed = 0,
76 const unsigned long long subsequence = 0,
77 const unsigned long long offset = 0)
79 this->seed(seed, subsequence, offset);
87 FQUALIFIERS void seed(
const unsigned long long seed = 0,
88 const unsigned long long subsequence = 0,
89 const unsigned long long offset = 0)
91 m_state.counter = {0U, 0U};
92 m_state.result = {0U, 0U};
95 m_state.key = {
static_cast<unsigned int>(seed),
static_cast<unsigned int>(seed >> 32)};
97 this->discard_subsequence_impl(subsequence);
98 this->discard(offset);
99 m_state.result = this->threefry_rounds(m_state.counter, m_state.key);
106 typedef rocrand_device::threefry2x32_20_engine rocrand_state_threefry2x32_20;
120 const unsigned long long subsequence,
121 const unsigned long long offset,
122 rocrand_state_threefry2x32_20* state)
124 *state = rocrand_state_threefry2x32_20(seed, subsequence, offset);
143 return state->next();
158 FQUALIFIERS uint2 rocrand2(rocrand_state_threefry2x32_20* state)
160 return state->next2();
FQUALIFIERS unsigned int rocrand(rocrand_state_lfsr113 *state)
Returns uniformly distributed random unsigned int value from [0; 2^32 - 1] range.
Definition: rocrand_lfsr113.h:253
FQUALIFIERS void rocrand_init(const uint4 seed, const unsigned int subsequence, rocrand_state_lfsr113 *state)
Initializes LFSR113 state.
Definition: rocrand_lfsr113.h:235
#define FQUALIFIERS
Shorthand for commonly used function qualifiers.
Definition: rocrand_uniform.h:31