Cleanup

lib/qcd/action/scalar/ScalarImpl.h

@@ -45,6 +45,49 @@ namespace Grid {
     }
     
   };
+
+  template <class S, unsigned int N>
+  class ScalarMatrixImplTypes {
+  public:
+    typedef S Simd;
+    
+    template <typename vtype>
+    using iImplField = iScalar<iScalar<iMatrix<vtype, N> > >;
+    
+    typedef iImplField<Simd> SiteField;
+    
+    
+    typedef Lattice<SiteField> Field;
+    
+    static inline void generate_momenta(Field& P, GridParallelRNG& pRNG){
+      gaussian(pRNG, P);
+    }
+    
+    static inline Field projectForce(Field& P){return P;}
+    
+    static inline void update_field(Field& P, Field& U, double ep){
+      U += P*ep;
+    }
+    
+    static inline RealD FieldSquareNorm(Field& U){
+      return (TensorRemove(- sum(trace(U*U))*0.5).real());
+    }
+    
+    static inline void HotConfiguration(GridParallelRNG &pRNG, Field &U) {
+      gaussian(pRNG, U);
+    }
+    
+    static inline void TepidConfiguration(GridParallelRNG &pRNG, Field &U) {
+      gaussian(pRNG, U);
+    }
+    
+    static inline void ColdConfiguration(GridParallelRNG &pRNG, Field &U) {
+      U = 1.0;
+    }
+    
+  };
+
+
   
   
   typedef ScalarImplTypes<vReal> ScalarImplR;

lib/qcd/action/scalar/ScalarInteractionAction.h

@@ -0,0 +1,84 @@
+/*************************************************************************************
+
+  Grid physics library, www.github.com/paboyle/Grid
+
+  Source file: ./lib/qcd/action/gauge/WilsonGaugeAction.h
+
+  Copyright (C) 2015
+
+Author: Azusa Yamaguchi <ayamaguc@staffmail.ed.ac.uk>
+Author: Peter Boyle <paboyle@ph.ed.ac.uk>
+Author: neo <cossu@post.kek.jp>
+Author: paboyle <paboyle@ph.ed.ac.uk>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along
+  with this program; if not, write to the Free Software Foundation, Inc.,
+  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+  See the full license in the file "LICENSE" in the top level distribution
+directory
+  *************************************************************************************/
+/*  END LEGAL */
+
+#ifndef SCALAR_ACTION_H
+#define SCALAR_ACTION_H
+
+namespace Grid {
+  // FIXME drop the QCD namespace everywhere here
+  
+  template <class Impl>
+  class ScalarInteractionAction : 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 LogParameters(){
+      std::stringstream sstream;
+      sstream << GridLogMessage << "[ScalarAction] lambda      : " << lambda      << std::endl;
+      sstream << GridLogMessage << "[ScalarAction] mass_square : " << mass_square << std::endl;
+      return sstream.str();
+      
+    }
+    
+    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
+
+#endif // SCALAR_ACTION_H