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Now computed some plaquettes.

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First cut at stencil
This commit is contained in:
Peter Boyle
2025-10-20 11:15:17 -04:00
parent c7b74db317
commit 4869378f1e
4 changed files with 839 additions and 9 deletions
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63
tests/debug/Test_icosahedron.cc
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@@ -26,6 +26,7 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
*************************************************************************************/
/* END LEGAL */
#include <Grid/Grid.h>
#include <Grid/stencil/IcosahedralStencil.h>
using namespace std;
using namespace Grid;
@@ -42,7 +43,7 @@ int main (int argc, char ** argv)
Grid_init(&argc,&argv);
const int L=8;
const int Npatch = num_icosahedron_tiles;
const int Npatch = IcosahedralPatches;
// Put SIMD all in time direction
Coordinate latt_size = GridDefaultLatt();
@@ -78,16 +79,70 @@ int main (int argc, char ** argv)
// std::cout << " Umu "<<Umu<<std::endl;
// std::cout << " Phi "<<Phi<<std::endl;
LatticePole(Phi,South);
std::cout << " Phi South Pole set\n"<<Phi<<std::endl;
// std::cout << " Phi South Pole set\n"<<Phi<<std::endl;
LatticePole(Phi,North);
std::cout << " Phi North Pole set\n"<<Phi<<std::endl;
// std::cout << " Phi North Pole set\n"<<Phi<<std::endl;
for(int mu=0;mu<VertexGrid._ndimension;mu++){
std::cout << " Calling lattice coordinate mu="<<mu<<std::endl;
LatticeCoordinate(Phi,mu);
std::cout << " Phi coor mu="<<mu<<"\n"<<Phi<<std::endl;
// std::cout << " Phi coor mu="<<mu<<"\n"<<Phi<<std::endl;
}
IcosahedralStencil stencil(&EdgeGrid);
stencil.TestGeometry();
std::cout << "Creating face stencil"<<std::endl;
stencil.FaceStencil();
Umu=one;
LatticeComplex plaq1(&EdgeGrid);
LatticeComplex plaq2(&EdgeGrid);
{
autoView(Umu_v,Umu,AcceleratorRead);
autoView(plaq1_v,plaq1,AcceleratorWrite);
autoView(plaq2_v,plaq2,AcceleratorWrite);
autoView(stencil_v,stencil,AcceleratorRead);
accelerator_for(ss,EdgeGrid.oSites(),vComplexD::Nsimd(),{
const int x = IcosahedronPatchX;
const int y = IcosahedronPatchY;
const int d = IcosahedronPatchDiagonal;
auto Lx = Umu_v(ss)(x);
auto Ly = Umu_v(ss)(y);
auto Ld = Umu_v(ss)(d);
// for trace [ U_x(z) U_y(z+\hat x) adj(U_d(z)) ]
{
auto SE1 = stencil_v.GetEntry(0,ss);
auto doAdj = SE1->_adjoint;
auto pol = SE1->_polarisation;
auto s1 = SE1->_offset;
auto L1 = Umu_v(s1)(pol);
if(doAdj)
L1 = adj(L1);
coalescedWrite(plaq1_v[ss](),trace(Lx*L1*adj(Ld) ) );
}
// for trace [ U_y(z) adj(U_d(z)) U_x(z+\hat y) ]
{
auto SE2 = stencil_v.GetEntry(1,ss);
auto doAdj = SE2->_adjoint;
auto pol = SE2->_polarisation;
auto s2 = SE2->_offset;
auto L2 = Umu_v(s2)(pol);
if(doAdj)
L2 = adj(L2);
coalescedWrite(plaq2_v[ss](),trace(Ly*adj(Ld)*L2 ) );
}
});
}
std::cout << " plaq1 "<< norm2(plaq1)<<std::endl;
std::cout << " plaq2 "<< norm2(plaq2)<<std::endl;
Grid_finalize();
}