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Mres changes and gauge xform mat changes

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This commit is contained in:
Peter Boyle
2019-02-05 23:43:00 +00:00
parent 74c38822ed
commit c1257208e2
6 changed files with 129 additions and 20 deletions
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31
Grid/qcd/utils/GaugeFix.h
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@@ -53,21 +53,32 @@ class FourierAcceleratedGaugeFixer : public Gimpl {
}
static void SteepestDescentGaugeFix(GaugeLorentz &Umu,Real & alpha,int maxiter,Real Omega_tol, Real Phi_tol,bool Fourier=false) {
GridBase *grid = Umu._grid;
GaugeMat xform(grid);
SteepestDescentGaugeFix(Umu,xform,alpha,maxiter,Omega_tol,Phi_tol,Fourier);
}
static void SteepestDescentGaugeFix(GaugeLorentz &Umu,GaugeMat &xform,Real & alpha,int maxiter,Real Omega_tol, Real Phi_tol,bool Fourier=false) {
GridBase *grid = Umu._grid;
Real org_plaq =WilsonLoops<Gimpl>::avgPlaquette(Umu);
Real org_link_trace=WilsonLoops<Gimpl>::linkTrace(Umu);
Real old_trace = org_link_trace;
Real trG;
xform=1.0;
std::vector<GaugeMat> U(Nd,grid);
GaugeMat dmuAmu(grid);
GaugeMat dmuAmu(grid);
for(int i=0;i<maxiter;i++){
for(int mu=0;mu<Nd;mu++) U[mu]= PeekIndex<LorentzIndex>(Umu,mu);
if ( Fourier==false ) {
trG = SteepestDescentStep(U,alpha,dmuAmu);
trG = SteepestDescentStep(U,xform,alpha,dmuAmu);
} else {
trG = FourierAccelSteepestDescentStep(U,alpha,dmuAmu);
trG = FourierAccelSteepestDescentStep(U,xform,alpha,dmuAmu);
}
for(int mu=0;mu<Nd;mu++) PokeIndex<LorentzIndex>(Umu,U[mu],mu);
// Monitor progress and convergence test
@@ -84,7 +95,6 @@ class FourierAcceleratedGaugeFixer : public Gimpl {
Real Phi = 1.0 - old_trace / link_trace ;
Real Omega= 1.0 - trG;
std::cout << GridLogMessage << " Iteration "<<i<< " Phi= "<<Phi<< " Omega= " << Omega<< " trG " << trG <<std::endl;
if ( (Omega < Omega_tol) && ( ::fabs(Phi) < Phi_tol) ) {
std::cout << GridLogMessage << "Converged ! "<<std::endl;
@@ -96,7 +106,7 @@ class FourierAcceleratedGaugeFixer : public Gimpl {
}
}
};
static Real SteepestDescentStep(std::vector<GaugeMat> &U,Real & alpha, GaugeMat & dmuAmu) {
static Real SteepestDescentStep(std::vector<GaugeMat> &U,GaugeMat &xform,Real & alpha, GaugeMat & dmuAmu) {
GridBase *grid = U[0]._grid;
std::vector<GaugeMat> A(Nd,grid);
@@ -109,12 +119,13 @@ class FourierAcceleratedGaugeFixer : public Gimpl {
Real vol = grid->gSites();
Real trG = TensorRemove(sum(trace(g))).real()/vol/Nc;
xform = g*xform ;
SU<Nc>::GaugeTransform(U,g);
return trG;
}
static Real FourierAccelSteepestDescentStep(std::vector<GaugeMat> &U,Real & alpha, GaugeMat & dmuAmu) {
static Real FourierAccelSteepestDescentStep(std::vector<GaugeMat> &U,GaugeMat &xform,Real & alpha, GaugeMat & dmuAmu) {
GridBase *grid = U[0]._grid;
@@ -153,13 +164,6 @@ class FourierAcceleratedGaugeFixer : public Gimpl {
Complex psqMax(16.0);
Fp = psqMax*one/psq;
/*
static int once;
if ( once == 0 ) {
std::cout << " Fp " << Fp <<std::endl;
once ++;
}*/
pokeSite(TComplex(1.0),Fp,coor);
dmuAmu_p = dmuAmu_p * Fp;
@@ -173,6 +177,7 @@ class FourierAcceleratedGaugeFixer : public Gimpl {
Real trG = TensorRemove(sum(trace(g))).real()/vol/Nc;
xform = g*xform ;
SU<Nc>::GaugeTransform(U,g);
return trG;