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Guido broke the charge conjugate plaquette action with premature optimisation.

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This sector of the code does not matter for anything other than Guido's quenched HMC
studies, and any plaq specific optimisations should be retained in a private branch
instead of destroying the code simplicity.
This commit is contained in:
paboyle 2018-03-05 12:55:41 +00:00
parent af7de7a294
commit c399c2b44d
4 changed files with 10 additions and 13 deletions
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12
lib/qcd/action/gauge/WilsonGaugeAction.h
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@ -71,18 +71,14 @@ class WilsonGaugeAction : public Action<typename Gimpl::GaugeField> {
RealD factor = 0.5 * beta / RealD(Nc);
//GaugeLinkField Umu(U._grid);
GaugeLinkField Umu(U._grid);
GaugeLinkField dSdU_mu(U._grid);
for (int mu = 0; mu < Nd; mu++) {
//Umu = PeekIndex<LorentzIndex>(U, mu);
Umu = PeekIndex<LorentzIndex>(U, mu);
// Staple in direction mu
//WilsonLoops<Gimpl>::Staple(dSdU_mu, U, mu);
//dSdU_mu = Ta(Umu * dSdU_mu) * factor;
WilsonLoops<Gimpl>::StapleMult(dSdU_mu, U, mu);
dSdU_mu = Ta(dSdU_mu) * factor;
WilsonLoops<Gimpl>::Staple(dSdU_mu, U, mu);
dSdU_mu = Ta(Umu * dSdU_mu) * factor;
PokeIndex<LorentzIndex>(dSdU, dSdU_mu, mu);
}

5
lib/qcd/utils/WilsonLoops.h
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@ -212,6 +212,7 @@ public:
// For the force term
/*
static void StapleMult(GaugeMat &staple, const GaugeLorentz &Umu, int mu) {
GridBase *grid = Umu._grid;
std::vector<GaugeMat> U(Nd, grid);
@ -225,7 +226,7 @@ static void StapleMult(GaugeMat &staple, const GaugeLorentz &Umu, int mu) {
for (int nu = 0; nu < Nd; nu++) {
if (nu != mu) {
// this is ~10% faster than the Staple
// this is ~10% faster than the Staple -- PAB: so what it gives the WRONG answers for other BC's!
tmp1 = Cshift(U[nu], mu, 1);
tmp2 = Cshift(U[mu], nu, 1);
staple += tmp1* adj(U[nu]*tmp2);
@ -235,7 +236,7 @@ static void StapleMult(GaugeMat &staple, const GaugeLorentz &Umu, int mu) {
}
staple = U[mu]*staple;
}
*/
//////////////////////////////////////////////////
// the sum over all staples on each site
//////////////////////////////////////////////////

4
tests/forces/Test_gp_rect_force.cc
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@ -59,8 +59,8 @@ int main (int argc, char ** argv)
double beta = 1.0;
double c1 = 0.331;
//GparityPlaqPlusRectangleActionR Action(beta,c1);
ConjugateWilsonGaugeActionR Action(beta);
ConjugatePlaqPlusRectangleActionR Action(beta,c1);
// ConjugateWilsonGaugeActionR Action(beta);
//WilsonGaugeActionR Action(beta);
ComplexD S = Action.S(U);

2
tests/forces/Test_gpwilson_force.cc
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@ -91,7 +91,7 @@ int main (int argc, char ** argv)
////////////////////////////////////
// Modify the gauge field a little
////////////////////////////////////
RealD dt = 0.0001;
RealD dt = 0.01;
LatticeColourMatrix mommu(UGrid);
LatticeColourMatrix forcemu(UGrid);