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Debugging the shGordon action

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This commit is contained in:
Guido Cossu
2018-01-18 10:24:28 +00:00
parent 1ba61680db
commit f5cc7e253b
3 changed files with 24 additions and 7 deletions
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2
lib/qcd/QCD.h
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@ -51,7 +51,7 @@ namespace QCD {
static const int Nc=3;
static const int Ns=4;
static const int Nd=4;
static const int Nd=2;
static const int Nhs=2; // half spinor
static const int Nds=8; // double stored gauge field
static const int Ngp=2; // gparity index range

8
lib/qcd/action/scalar/shGordonAction.h
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@ -55,16 +55,16 @@ class shGordonAction : public QCD::Action<typename Impl::Field> {
virtual void refresh(const Field &U, GridParallelRNG &pRNG) {} // noop as no pseudoferms
virtual RealD S(const Field &phi) {
return 0.5*ScalarObs<Impl>::sumphider(phi) - 0.5*mass_square/(g*g)*sum(trace(exp(g*phi) + exp(-g*phi))) ;
return QCD::Nd * ScalarObs<Impl>::sumphisquared(phi) + ScalarObs<Impl>::sumphider(phi) - 0.5*mass_square/(g*g)*sum(trace(exp(g*phi) + exp(-g*phi))) ;
};
virtual void deriv(const Field &phi,
Field &force) {
Field tmp(phi._grid);
tmp = zero;
for (int mu = 0; mu < QCD::Nd; mu++) tmp += Cshift(phi, mu, 1) - Cshift(phi, mu, -1);
tmp = 2.0*QCD::Nd*phi;
for (int mu = 0; mu < QCD::Nd; mu++) tmp -= Cshift(phi, mu, 1) + Cshift(phi, mu, -1);
force+= 0.5*tmp - 0.5*mass_square/g*(exp(g*phi) - exp(-g*phi));
force+= tmp - 0.5*mass_square/g*(exp(g*phi) - exp(-g*phi));
}
};