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Somewhat better wrapped support for Icosahedral

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This commit is contained in:
Peter Boyle
2025-10-20 18:09:21 -04:00
parent 4869378f1e
commit defcac92ab
6 changed files with 456 additions and 94 deletions
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324
tests/debug/Test_icosahedron.cc
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@@ -32,80 +32,63 @@ using namespace std;
using namespace Grid;
const int MyNd=3;
template<typename vtype> using iIcosahedralLorentzComplex = iVector<iScalar<iScalar<vtype> >, MyNd+1 > ;
typedef iIcosahedralLorentzComplex<ComplexD > IcosahedralLorentzComplexD;
typedef iIcosahedralLorentzComplex<vComplexD> vIcosahedralLorentzComplexD;
typedef Lattice<vIcosahedralLorentzComplexD> LatticeIcosahedralLorentzComplexD;
template<typename vtype> using iIcosahedralLorentzComplex = iVector<iScalar<iScalar<vtype> >, MyNd+1 > ;
template<typename vtype> using iIcosahedralLorentzColourMatrix = iVector<iScalar<iMatrix<vtype,Nc> >, MyNd+1 > ;
template<typename vtype> using iIcosahedralColourMatrix = iScalar<iScalar<iMatrix<vtype,Nc> > > ;
int main (int argc, char ** argv)
typedef iIcosahedralLorentzComplex<Complex > IcosahedralLorentzComplex;
typedef iIcosahedralLorentzComplex<vComplex> vIcosahedralLorentzComplex;
typedef Lattice<vIcosahedralLorentzComplex> LatticeIcosahedralLorentzComplex;
typedef iIcosahedralLorentzColourMatrix<Complex > IcosahedralLorentzColourMatrix;
typedef iIcosahedralLorentzColourMatrix<vComplex> vIcosahedralLorentzColourMatrix;
typedef Lattice<vIcosahedralLorentzColourMatrix> LatticeIcosahedralLorentzColourMatrix;
typedef iIcosahedralColourMatrix<Complex > IcosahedralColourMatrix;
typedef iIcosahedralColourMatrix<vComplex> vIcosahedralColourMatrix;
typedef Lattice<vIcosahedralColourMatrix> LatticeIcosahedralColourMatrix;
class IcosahedralGimpl
{
Grid_init(&argc,&argv);
const int L=8;
const int Npatch = IcosahedralPatches;
// Put SIMD all in time direction
Coordinate latt_size = GridDefaultLatt();
Coordinate simd_layout({1,1,vComplexD::Nsimd(),1});
Coordinate mpi_layout = GridDefaultMpi();
std::cout << GridLogMessage << " mpi "<<mpi_layout<<std::endl;
std::cout << GridLogMessage << " simd "<<simd_layout<<std::endl;
std::cout << GridLogMessage << " latt "<<latt_size<<std::endl;
GridCartesianCrossIcosahedron EdgeGrid(latt_size,simd_layout,mpi_layout,IcosahedralEdges);
std::cout << GridLogMessage << " Created edge grid "<<std::endl;
GridCartesianCrossIcosahedron VertexGrid(latt_size,simd_layout,mpi_layout,IcosahedralVertices);
std::cout << GridLogMessage << " Created vertex grid "<<std::endl;
LatticeIcosahedralLorentzComplexD Umu(&EdgeGrid);
LatticeComplex Phi(&VertexGrid);
std::cout << GridLogMessage << " Created two fields "<<std::endl;
Phi = Zero();
Umu = Zero();
std::cout << GridLogMessage << " Zeroed two fields "<<std::endl;
ComplexD one (1.0);
Phi = one;
Umu = one;
public:
typedef LatticeIcosahedralLorentzColourMatrix GaugeField;
typedef LatticeIcosahedralColourMatrix GaugeLinkField;
typedef LatticeComplex ComplexField;
};
std::cout << GridLogMessage << " V = "<<norm2(Phi)<<std::endl;
std::cout << GridLogMessage << " Expect "<<latt_size[0]*latt_size[1]*latt_size[2]*10+2*latt_size[2]<<std::endl;
template< class Gimpl>
class IcosahedralEdgeSupport {
public:
// Move to inherit types macro as before
typedef typename Gimpl::GaugeField GaugeField;
typedef typename Gimpl::GaugeLinkField GaugeLinkField;
typedef typename Gimpl::ComplexField ComplexField;
//
GridBase *VertexGrid;
GridBase *EdgeGrid;
IcosahedralStencil FaceStencil;
std::cout << GridLogMessage << " E = "<<norm2(Umu)<<std::endl;
std::cout << GridLogMessage << " Expect "<<latt_size[0]*latt_size[1]*latt_size[2]*10*4<<std::endl;
// 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;
LatticePole(Phi,North);
// 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;
}
IcosahedralStencil stencil(&EdgeGrid);
stencil.TestGeometry();
std::cout << "Creating face stencil"<<std::endl;
stencil.FaceStencil();
Umu=one;
LatticeComplex plaq1(&EdgeGrid);
LatticeComplex plaq2(&EdgeGrid);
IcosahedralEdgeSupport(GridBase *_VertexGrid,GridBase *_EdgeGrid)
: FaceStencil (EdgeGrid), VertexGrid(_VertexGrid), EdgeGrid(_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(),{
FaceStencil.FaceStencil();
}
////////////////////////////////////////////////////////////////////////////////////
// Fixme: will need a version of "Gimpl" and a wrapper class following "WilsonLoops" style.
// Gauge Link field GT is the gauge transform and lives on the VERTEX field
////////////////////////////////////////////////////////////////////////////////////
void ForwardTriangles(GaugeField &Umu,LatticeComplex &plaq1,LatticeComplex &plaq2)
{
{
autoView(Umu_v,Umu,AcceleratorRead);
autoView(plaq1_v,plaq1,AcceleratorWrite);
autoView(plaq2_v,plaq2,AcceleratorWrite);
autoView(stencil_v,FaceStencil,AcceleratorRead);
accelerator_for(ss,EdgeGrid->oSites(),vComplex::Nsimd(),{
const int x = IcosahedronPatchX;
const int y = IcosahedronPatchY;
@@ -141,8 +124,213 @@ int main (int argc, char ** argv)
coalescedWrite(plaq2_v[ss](),trace(Ly*adj(Ld)*L2 ) );
}
});
}
}
void GaugeTransform(GaugeLinkField &gt, GaugeField &Umu)
{
assert(gt.Grid()==VertexGrid);
assert(Umu.Grid()==EdgeGrid);
GridBase * vgrid = VertexGrid;
GridBase * grid = EdgeGrid;
int osites = grid->oSites();
uint64_t cart_sites = grid->CartesianOsites();
uint64_t Npole_sites = grid->NorthPoleOsites();
uint64_t Spole_sites = grid->SouthPoleOsites();
Coordinate pcoor = grid->ThisProcessorCoor();
Coordinate pgrid = grid->ProcessorGrid();
/*
* resize the stencil entries array and set npoints
*/
autoView(g_v,gt,CpuRead);
autoView(Umu_v,Umu,CpuWrite);
for(uint64_t site=0;site<cart_sites; site ++) {
Coordinate Coor;
Coordinate NbrCoor;
int nd = grid->Nd();
int L = grid->LocalDimensions()[0];
////////////////////////////////////////////////
// Outer index of neighbour Offset calculation
////////////////////////////////////////////////
grid->oCoorFromOindex(Coor,site);
NbrCoor = Coor;
assert( grid->LocalDimensions()[1]==grid->LocalDimensions()[0]);
assert( grid->_simd_layout[0]==1); // Cannot vectorise in these dims
assert( grid->_simd_layout[1]==1);
assert( grid->_processors[0]==1); // Cannot mpi distribute in these dims
assert( grid->_processors[1]==1);
int Patch = Coor[nd-1];
int HemiPatch = Patch%HemiPatches;
int north = Patch/HemiPatches;
int south = 1-north;
int isPoleY;
int isPoleX;
assert(Patch<IcosahedralPatches);
assert((north==1)||(south==1));
Coordinate XpCoor;
Coordinate YpCoor;
Coordinate DpCoor;
FaceStencil.GetNbrForPlusDiagonal(grid,Coor,DpCoor);
FaceStencil.GetNbrForPlusX(grid,Coor,XpCoor,isPoleX);
FaceStencil.GetNbrForPlusY(grid,Coor,YpCoor,isPoleY);
int XpHemiPatch = XpCoor[nd-1]%HemiPatches;
int XpHemisphere = XpCoor[nd-1]/HemiPatches;
int DpPatch = DpCoor[nd-1];
int DpHemiPatch = DpCoor[nd-1]%HemiPatches;
int DpHemisphere = DpCoor[nd-1]/HemiPatches;
// Work out the pole_osite
Coordinate rdims;
Coordinate ocoor;
int64_t pole_osite;
int Ndm1 = grid->Nd()-1;
for(int d=2;d<Ndm1;d++){
int dd=d-2;
rdims.push_back(grid->_rdimensions[d]);
ocoor.push_back(Coor[d]%grid->_rdimensions[d]);
}
Lexicographic::IndexFromCoor(ocoor,pole_osite,rdims);
uint64_t xp_idx;
uint64_t yp_idx;
uint64_t dp_idx;
if ( isPoleX ) {
assert(vgrid->ownsSouthPole());
xp_idx = pole_osite + grid->SouthPoleOsite();
} else {
xp_idx = grid->oIndex(XpCoor);
}
if ( isPoleY ) {
assert(vgrid->ownsNorthPole());
yp_idx = pole_osite + grid->NorthPoleOsite();
} else {
yp_idx = grid->oIndex(YpCoor);
}
dp_idx = grid->oIndex(DpCoor);
auto g = g_v(site)();
auto gx = g_v(xp_idx)();
auto gy = g_v(yp_idx)();
auto gd = g_v(dp_idx)();
auto lx = Umu_v(site)(IcosahedronPatchX);
auto ly = Umu_v(site)(IcosahedronPatchY);
auto ld = Umu_v(site)(IcosahedronPatchDiagonal);
lx = g*lx*adj(gx);
ly = g*ly*adj(gy);
ld = g*ld*adj(gd);
coalescedWrite(Umu_v[site](IcosahedronPatchX),lx);
coalescedWrite(Umu_v[site](IcosahedronPatchY),ly);
coalescedWrite(Umu_v[site](IcosahedronPatchDiagonal),ld);
};
}
};
int main (int argc, char ** argv)
{
Grid_init(&argc,&argv);
const int L=8;
const int Npatch = IcosahedralPatches;
// Put SIMD all in time direction
Coordinate latt_size = GridDefaultLatt();
Coordinate simd_layout({1,1,vComplex::Nsimd(),1});
Coordinate mpi_layout = GridDefaultMpi();
std::cout << GridLogMessage << " mpi "<<mpi_layout<<std::endl;
std::cout << GridLogMessage << " simd "<<simd_layout<<std::endl;
std::cout << GridLogMessage << " latt "<<latt_size<<std::endl;
GridCartesianCrossIcosahedron EdgeGrid(latt_size,simd_layout,mpi_layout,IcosahedralEdges);
std::cout << GridLogMessage << " Created edge grid "<<std::endl;
GridCartesianCrossIcosahedron VertexGrid(latt_size,simd_layout,mpi_layout,IcosahedralVertices);
std::cout << GridLogMessage << " Created vertex grid "<<std::endl;
LatticeIcosahedralLorentzColourMatrix Umu(&EdgeGrid);
LatticeComplex Phi(&VertexGrid);
std::cout << GridLogMessage << " Created two fields "<<std::endl;
Phi = Zero();
Umu = Zero();
std::cout << GridLogMessage << " Zeroed two fields "<<std::endl;
Complex one (1.0);
Phi = one;
Umu = one;
std::cout << GridLogMessage << " V = "<<norm2(Phi)<<std::endl;
std::cout << GridLogMessage << " Expect "<<latt_size[0]*latt_size[1]*latt_size[2]*10+2*latt_size[2]<<std::endl;
std::cout << GridLogMessage << " E = "<<norm2(Umu)<<std::endl;
std::cout << GridLogMessage << " Expect "<<latt_size[0]*latt_size[1]*latt_size[2]*10*4<<std::endl;
// 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;
LatticePole(Phi,North);
// 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 << "Creating face stencil"<<std::endl;
IcosahedralEdgeSupport<IcosahedralGimpl> Support(&VertexGrid,&EdgeGrid);
std::cout << " Calling Test Geometry "<<std::endl;
Support.FaceStencil.TestGeometry();
Umu=one;
LatticeComplex plaq1(&EdgeGrid);
LatticeComplex plaq2(&EdgeGrid);
Support.ForwardTriangles(Umu,plaq1,plaq2);
std::cout << " plaq1 "<< norm2(plaq1)<<std::endl;
std::cout << " plaq2 "<< norm2(plaq2)<<std::endl;
// Random gauge xform
std::vector<int> seeds({1,2,3,4});
GridParallelRNG vRNG(&EdgeGrid); vRNG.SeedFixedIntegers(seeds);
LatticeIcosahedralColourMatrix g(&VertexGrid);
// SU<Nc>::LieRandomize(vRNG,g);
LatticeReal gr(&VertexGrid);
LatticeComplex gc(&VertexGrid);
gaussian(vRNG,gr);
Complex ci(0.0,1.0);
gc = toComplex(gr);
g=one;
g = g * exp(ci*gc);
std::cout << "applying gauge transform"<<std::endl;
Support.GaugeTransform(g,Umu);
std::cout << "applied gauge transform "<<Umu<<std::endl;
Support.ForwardTriangles(Umu,plaq1,plaq2);
std::cout << " plaq1 "<< norm2(plaq1)<<std::endl;
std::cout << " plaq2 "<< norm2(plaq2)<<std::endl;
Grid_finalize();
}