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Guido Cossu
2017-01-26 15:24:49 +00:00
parent 7996f06335
commit e863a948e3
15 changed files with 587 additions and 551 deletions
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79
lib/qcd/action/scalar/ScalarAction.h
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@ -29,51 +29,48 @@ Author: paboyle <paboyle@ph.ed.ac.uk>
directory
*************************************************************************************/
/* END LEGAL */
#ifndef SCALAR_ACTION_H
#define SCALAR_ACTION_H
namespace Grid {
namespace QCD {
////////////////////////////////////////////////////////////////////////
// Wilson Gauge Action .. should I template the Nc etc..
////////////////////////////////////////////////////////////////////////
template <class Impl>
class ScalarAction : public Action<typename Impl::Field> {
public:
INHERIT_FIELD_TYPES(Impl);
private:
RealD mass_square;
RealD lambda;
public:
ScalarAction(RealD ms, RealD l) : mass_square(ms), lambda(l){};
virtual std::string action_name(){return "ScalarAction";}
// FIXME drop the QCD namespace everywhere here
virtual void refresh(const Field &U,
GridParallelRNG &pRNG){}; // noop as no pseudoferms
virtual RealD S(const Field &p) {
return (mass_square * 0.5 + Nd) * ScalarObs<Impl>::sumphisquared(p) +
(lambda / 24.) * ScalarObs<Impl>::sumphifourth(p) +
ScalarObs<Impl>::sumphider(p);
template <class Impl>
class ScalarAction : public QCD::Action<typename Impl::Field> {
public:
INHERIT_FIELD_TYPES(Impl);
private:
RealD mass_square;
RealD lambda;
public:
ScalarAction(RealD ms, RealD l) : mass_square(ms), lambda(l){};
virtual std::string action_name(){return "ScalarAction";}
virtual void refresh(const Field &U,
GridParallelRNG &pRNG){}; // noop as no pseudoferms
virtual RealD S(const Field &p) {
return (mass_square * 0.5 + QCD::Nd) * ScalarObs<Impl>::sumphisquared(p) +
(lambda / 24.) * ScalarObs<Impl>::sumphifourth(p) +
ScalarObs<Impl>::sumphider(p);
};
virtual void deriv(const Field &p,
Field &force) {
Field tmp(p._grid);
Field p2(p._grid);
ScalarObs<Impl>::phisquared(p2, p);
tmp = -(Cshift(p, 0, -1) + Cshift(p, 0, 1));
for (int mu = 1; mu < QCD::Nd; mu++) tmp -= Cshift(p, mu, -1) + Cshift(p, mu, 1);
force=+(mass_square + 2. * QCD::Nd) * p + (lambda / 6.) * p2 * p + tmp;
};
};
} // Grid
virtual void deriv(const Field &p,
Field &force) {
Field tmp(p._grid);
Field p2(p._grid);
ScalarObs<Impl>::phisquared(p2, p);
tmp = -(Cshift(p, 0, -1) + Cshift(p, 0, 1));
for (int mu = 1; mu < Nd; mu++) tmp -= Cshift(p, mu, -1) + Cshift(p, mu, 1);
force=+(mass_square + 2. * Nd) * p + (lambda / 6.) * p2 * p + tmp;
};
};
}
}
#endif
#endif // SCALAR_ACTION_H