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Charge conjugation boundary conditions for gauge fields implemented as a policy

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class, changing the nature of covariant Cshifts used in
plaquettes, rectangles and staples.

As a result same code is used for the plaq and rect action independent of the BC type.

Should probably isolate the BC in a separate class that Gimpl takes as a template param.
Do the same with smearing policies.

This would then allow composition of BC with smearing etc....
This commit is contained in:
paboyle
2016-01-02 13:37:25 +00:00
parent 145a295231
commit 5a80930dd2
20 changed files with 672 additions and 213 deletions
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12
lib/qcd/action/gauge/WilsonGaugeAction.h
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@ -7,11 +7,13 @@ namespace Grid{
////////////////////////////////////////////////////////////////////////
// Wilson Gauge Action .. should I template the Nc etc..
////////////////////////////////////////////////////////////////////////
template<class GaugeField>
class WilsonGaugeAction : public Action<GaugeField> {
template<class Gimpl>
class WilsonGaugeAction : public Action<typename Gimpl::GaugeField> {
public:
typedef LorentzScalar<GaugeField> GaugeLinkField;
INHERIT_GIMPL_TYPES(Gimpl);
// typedef LorentzScalar<GaugeField> GaugeLinkField;
private:
RealD beta;
@ -21,7 +23,7 @@ namespace Grid{
virtual void refresh(const GaugeField &U, GridParallelRNG& pRNG) {}; // noop as no pseudoferms
virtual RealD S(const GaugeField &U) {
RealD plaq = WilsonLoops<GaugeField>::avgPlaquette(U);
RealD plaq = WilsonLoops<Gimpl>::avgPlaquette(U);
RealD vol = U._grid->gSites();
RealD action=beta*(1.0 -plaq)*(Nd*(Nd-1.0))*vol*0.5;
return action;
@ -41,7 +43,7 @@ namespace Grid{
Umu = PeekIndex<LorentzIndex>(U,mu);
// Staple in direction mu
WilsonLoops<GaugeField>::Staple(dSdU_mu,U,mu);
WilsonLoops<Gimpl>::Staple(dSdU_mu,U,mu);
dSdU_mu = Ta(Umu*dSdU_mu)*factor;
PokeIndex<LorentzIndex>(dSdU, dSdU_mu, mu);
}