mirror of
https://github.com/paboyle/Grid.git
synced 2024-11-10 15:55:37 +00:00
86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
#include <Grid.h>
|
|
|
|
using namespace Grid;
|
|
using namespace Grid::QCD;
|
|
|
|
int main (int argc, char ** argv)
|
|
{
|
|
Grid_init(&argc,&argv);
|
|
|
|
std::vector<int> latt_size = GridDefaultLatt();
|
|
std::vector<int> simd_layout = GridDefaultSimd(4,vComplexF::Nsimd());
|
|
std::vector<int> mpi_layout = GridDefaultMpi();
|
|
|
|
GridCartesian Fine(latt_size,simd_layout,mpi_layout);
|
|
|
|
GridParallelRNG FineRNG(&Fine); FineRNG.SeedRandomDevice();
|
|
|
|
LatticeComplex U(&Fine);
|
|
LatticeComplex ShiftU(&Fine);
|
|
|
|
LatticeComplex lex(&Fine);
|
|
lex=zero;
|
|
Integer stride =1;
|
|
{
|
|
double nrm;
|
|
LatticeComplex coor(&Fine);
|
|
|
|
for(int d=0;d<4;d++){
|
|
LatticeCoordinate(coor,d);
|
|
lex = lex + coor*stride;
|
|
stride=stride*latt_size[d];
|
|
}
|
|
U=lex;
|
|
}
|
|
|
|
|
|
TComplex cm;
|
|
|
|
for(int dir=0;dir<4;dir++){
|
|
for(int shift=0;shift<latt_size[dir];shift++){
|
|
if ( Fine.IsBoss() )
|
|
std::cout<<"Shifting by "<<shift<<" in direction"<<dir<<std::endl;
|
|
|
|
ShiftU = Cshift(U,dir,shift); // Shift everything
|
|
|
|
std::vector<int> coor(4);
|
|
|
|
for(coor[3]=0;coor[3]<latt_size[3];coor[3]++){
|
|
for(coor[2]=0;coor[2]<latt_size[2];coor[2]++){
|
|
for(coor[1]=0;coor[1]<latt_size[1];coor[1]++){
|
|
for(coor[0]=0;coor[0]<latt_size[0];coor[0]++){
|
|
|
|
peekSite(cm,ShiftU,coor);
|
|
|
|
double nrm=norm2(U);
|
|
|
|
std::vector<int> scoor(coor);
|
|
scoor[dir] = (scoor[dir]+shift)%latt_size[dir];
|
|
|
|
Integer slex = scoor[0]
|
|
+ latt_size[0]*scoor[1]
|
|
+ latt_size[0]*latt_size[1]*scoor[2]
|
|
+ latt_size[0]*latt_size[1]*latt_size[2]*scoor[3];
|
|
|
|
Complex scm(slex);
|
|
|
|
nrm = abs(scm-cm()()());
|
|
std::vector<int> peer(4);
|
|
Complex tmp =cm;
|
|
Integer index=real(tmp);
|
|
Fine.CoorFromIndex(peer,index,latt_size);
|
|
|
|
if (nrm > 0){
|
|
std::cerr<<"FAIL shift "<< shift<<" in dir "<< dir<<" ["<<coor[0]<<","<<coor[1]<<","<<coor[2]<<","<<coor[3]<<"] = "<< cm()()()<<" expect "<<scm<<" "<<nrm<<std::endl;
|
|
std::cerr<<"Got "<<index<<" " << peer[0]<<","<<peer[1]<<","<<peer[2]<<","<<peer[3]<<std::endl;
|
|
index=real(scm);
|
|
Fine.CoorFromIndex(peer,index,latt_size);
|
|
std::cerr<<"Expect "<<index<<" " << peer[0]<<","<<peer[1]<<","<<peer[2]<<","<<peer[3]<<std::endl;
|
|
}
|
|
}}}}
|
|
}
|
|
}
|
|
|
|
Grid_finalize();
|
|
}
|