portelli/Grid
1
0
Fork 0
mirror of https://github.com/paboyle/Grid.git synced 2025-06-12 20:27:06 +01:00
Code Releases Activity

Optional Twisted BC's added, in "DoubleStore" for WilsonImpl.

Browse Source 
Untested but doesn't affect answers when twists are all zero. The zero is the default behaviour
for ImplParams.
This commit is contained in:
Peter Boyle
2018-11-08 12:55:25 +00:00
parent 68c13045d6
commit f3f24b3017
2 changed files with 22 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
Grid/qcd/action/ActionParams.h
View File

@ -44,12 +44,15 @@ namespace QCD {
struct WilsonImplParams { struct WilsonImplParams {
bool overlapCommsCompute; bool overlapCommsCompute;
std::vector<Real> twist_n_2pi_L;
std::vector<Complex> boundary_phases; std::vector<Complex> boundary_phases;
WilsonImplParams() : overlapCommsCompute(false) { WilsonImplParams() : overlapCommsCompute(false) {
boundary_phases.resize(Nd, 1.0); boundary_phases.resize(Nd, 1.0);
twist_n_2pi_L.resize(Nd, 0.0);
}; };
WilsonImplParams(const std::vector<Complex> phi) WilsonImplParams(const std::vector<Complex> phi) : boundary_phases(phi), overlapCommsCompute(false) {
: boundary_phases(phi), overlapCommsCompute(false) {} twist_n_2pi_L.resize(Nd, 0.0);
}
}; };
struct StaggeredImplParams { struct StaggeredImplParams {

20
Grid/qcd/action/fermion/FermionOperatorImpl.h
View File

@ -240,16 +240,30 @@ namespace QCD {
GaugeLinkField tmp(GaugeGrid); GaugeLinkField tmp(GaugeGrid);
Lattice<iScalar<vInteger> > coor(GaugeGrid); Lattice<iScalar<vInteger> > coor(GaugeGrid);
////////////////////////////////////////////////////
// apply any boundary phase or twists
////////////////////////////////////////////////////
for (int mu = 0; mu < Nd; mu++) { for (int mu = 0; mu < Nd; mu++) {
auto pha = Params.boundary_phases[mu]; ////////// boundary phase /////////////
scalar_type phase( real(pha),imag(pha) ); auto pha = Params.boundary_phases[mu];
scalar_type phase( real(pha),imag(pha) );
int Lmu = GaugeGrid->GlobalDimensions()[mu] - 1; int L = GaugeGrid->GlobalDimensions()[mu];
int Lmu = L - 1;
LatticeCoordinate(coor, mu); LatticeCoordinate(coor, mu);
U = PeekIndex<LorentzIndex>(Umu, mu); U = PeekIndex<LorentzIndex>(Umu, mu);
// apply any twists
RealD theta = Params.twist_n_2pi_L[mu] * 2*M_PI / L;
if ( theta != 0.0) {
scalar_type twphase(::cos(theta),::sin(theta));
U = twphase*U;
std::cout << GridLogMessage << " Twist ["<<mu<<"] "<< Params.twist_n_2pi_L[mu]<< " phase"<<phase <<std::endl;
}
tmp = where(coor == Lmu, phase * U, U); tmp = where(coor == Lmu, phase * U, U);
PokeIndex<LorentzIndex>(Uds, tmp, mu); PokeIndex<LorentzIndex>(Uds, tmp, mu);