mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-10 15:55:37 +00:00
33 lines
865 B
C
33 lines
865 B
C
|
#ifndef GRID_LATTICE_RNG_H
|
||
|
|
#define GRID_LATTICE_RNG_H
|
||
|
|
|
||
|
|
namespace Grid {
|
||
|
|
|
||
|
|
// FIXME Randomise; deprecate this
|
||
|
|
template <class vobj> inline void random(Lattice<vobj> &l){
|
||
|
|
Real *v_ptr = (Real *)&l._odata[0];
|
||
|
|
size_t v_len = l._grid->oSites()*sizeof(vobj);
|
||
|
|
size_t d_len = v_len/sizeof(Real);
|
||
|
|
|
||
|
|
for(int i=0;i<d_len;i++){
|
||
|
|
|
||
|
|
v_ptr[i]=drand48();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
// FIXME Implement a consistent seed management strategy
|
||
|
|
template <class vobj> inline void gaussian(Lattice<vobj> &l){
|
||
|
|
// Zero mean, unit variance.
|
||
|
|
std::normal_distribution<double> distribution(0.0,1.0);
|
||
|
|
Real *v_ptr = (Real *)&l._odata[0];
|
||
|
|
size_t v_len = l._grid->oSites()*sizeof(vobj);
|
||
|
|
size_t d_len = v_len/sizeof(Real);
|
||
|
|
|
||
|
|
for(int i=0;i<d_len;i++){
|
||
|
|
v_ptr[i]= drand48();
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
#endif
|