portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-11-04 05:54:32 +00:00
Code Releases Activity

Bernoulli RNG

Browse Source
This commit is contained in:
Antonin Portelli
2016-04-30 00:14:13 -07:00
parent ca5eebe10c
commit 23b6172c31
1 changed files with 18 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
lib/lattice/Lattice_rng.h
View File

@@ -75,7 +75,7 @@ namespace Grid {
std::seed_seq src;
fixedSeed(std::vector<int> &seeds) : src(seeds.begin(),seeds.end()) {};
fixedSeed(const std::vector<int> &seeds) : src(seeds.begin(),seeds.end()) {};
result_type operator () (void){
@@ -120,8 +120,9 @@ namespace Grid {
static const int RngStateCount = std::mt19937::state_size;
#endif
std::vector<RngEngine> _generators;
std::vector<std::uniform_real_distribution<RealD> > _uniform;
std::vector<std::normal_distribution<RealD> > _gaussian;
std::vector<std::uniform_real_distribution<RealD>> _uniform;
std::vector<std::normal_distribution<RealD>> _gaussian;
std::vector<std::discrete_distribution<RealD>> _bernoulli;
void GetState(std::vector<RngStateType> & saved,int gen) {
saved.resize(RngStateCount);
@@ -161,6 +162,7 @@ namespace Grid {
_generators.resize(1);
_uniform.resize(1,std::uniform_real_distribution<RealD>{0,1});
_gaussian.resize(1,std::normal_distribution<RealD>(0.0,1.0) );
_bernoulli.resize(1,std::discrete_distribution<RealD>{1,1});
_seeded=0;
}
@@ -242,7 +244,7 @@ namespace Grid {
std::random_device rd;
Seed(rd);
}
void SeedFixedIntegers(std::vector<int> &seeds){
void SeedFixedIntegers(const std::vector<int> &seeds){
fixedSeed src(seeds);
Seed(src);
}
@@ -266,6 +268,7 @@ namespace Grid {
_generators.resize(_vol);
_uniform.resize(_vol,std::uniform_real_distribution<RealD>{0,1});
_gaussian.resize(_vol,std::normal_distribution<RealD>(0.0,1.0) );
_bernoulli.resize(_vol,std::discrete_distribution<RealD>{1,1});
_seeded=0;
}
@@ -354,7 +357,7 @@ PARALLEL_FOR_LOOP
std::random_device rd;
Seed(rd);
}
void SeedFixedIntegers(std::vector<int> &seeds){
void SeedFixedIntegers(const std::vector<int> &seeds){
fixedSeed src(seeds);
Seed(src);
}
@@ -369,13 +372,21 @@ PARALLEL_FOR_LOOP
rng.fill(l,rng._gaussian);
}
template <class vobj> inline void bernoulli(GridParallelRNG &rng,Lattice<vobj> &l){
rng.fill(l,rng._bernoulli);
}
template <class sobj> inline void random(GridSerialRNG &rng,sobj &l){
rng.fill(l,rng._uniform);
}
template <class sobj> inline void gaussian(GridSerialRNG &rng,sobj &l){
rng.fill(l,rng._gaussian);
}
template <class sobj> inline void bernoulli(GridSerialRNG &rng,sobj &l){
rng.fill(l,rng._bernoulli);
}
}
#endif