crp/OpenMC
1
0
Fork 0
mirror of https://github.com/openmc-dev/openmc.git synced 2026-07-28 14:15:42 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions 5

added particle based seed initialization. Now for sampling functions to use the new seeds.

Browse source
This commit is contained in:
John Tramm 2019-11-20 22:55:40 +00:00
parent 5c7e7ff13f
commit 0ebfae4ef5
4 changed files with 24 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

2
include/openmc/particle.h
View file

@ -288,7 +288,7 @@ public:
bool write_track_ {false};
// Current PRNG state
uint64_t prn_seed[N_STREAMS]; // current seed
uint64_t prn_seeds[N_STREAMS]; // current seeds
int stream; // current RNG stream
};

6
include/openmc/random_lcg.h
View file

@ -25,7 +25,7 @@ constexpr int64_t DEFAULT_SEED = 1;
//==============================================================================
//extern "C" double prn();
extern "C" double prn(uint64_t * seed);
extern "C" double prn(uint64_t * seeds, int stream);
//==============================================================================
//! Generate a random number which is 'n' times ahead from the current seed.
@ -44,14 +44,14 @@ extern "C" double future_prn(int64_t n, uint64_t seed);
//! @param id The particle ID
//==============================================================================
extern "C" void set_particle_seed(int64_t id, uint64_t * prn_seed );
extern "C" void set_particle_seed(int64_t id, uint64_t * prn_seeds );
//==============================================================================
//! Advance the random number seed 'n' times from the current seed.
//! @param n The number of RNG seeds to skip ahead by
//==============================================================================
extern "C" void advance_prn_seed(int64_t n, uint64_t * seed);
extern "C" void advance_prn_seed(int64_t n, uint64_t * prn_seeds, int stream);
//==============================================================================
//! Advance a random number seed 'n' times.