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Faster derivative for WilsonGauge

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This commit is contained in:
Guido Cossu
2017-05-26 14:31:49 +01:00
parent ffb91e53d2
commit 0de314870d
2 changed files with 37 additions and 22 deletions
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12
lib/qcd/action/gauge/WilsonGaugeAction.h
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@ -71,14 +71,18 @@ 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>::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;
PokeIndex<LorentzIndex>(dSdU, dSdU_mu, mu);
}