Merge branch 'develop' into feature/gpu-port

Grid/qcd/representations/fundamental.h

@@ -0,0 +1,52 @@
+/*
+ *	Policy classes for the HMC
+ *	Author: Guido Cossu
+ */	
+
+#ifndef FUNDAMENTAL_H
+#define FUNDAMENTAL_H
+
+NAMESPACE_BEGIN(Grid);
+
+/*
+ * This is an helper class for the HMC
+ * Empty since HMC updates already the fundamental representation 
+ */
+
+template <int ncolour>
+class FundamentalRep {
+public:
+  static const int Dimension = ncolour;
+  static const bool isFundamental = true;
+
+  // typdef to be used by the Representations class in HMC to get the
+  // types for the higher representation fields
+  typedef typename SU<ncolour>::LatticeMatrix LatticeMatrix;
+  typedef LatticeGaugeField LatticeField;
+  
+  explicit FundamentalRep(GridBase* grid) {} //do nothing
+  void update_representation(const LatticeGaugeField& Uin) {} // do nothing
+
+  LatticeField RtoFundamentalProject(const LatticeField& in, Real scale = 1.0) const{
+    return (scale * in);
+  }
+
+};
+
+template<class Field> 
+class EmptyRep {
+public:
+  typedef Field LatticeField;
+
+  explicit EmptyRep(GridBase* grid) {} //do nothing
+  void update_representation(const LatticeField& Uin) {} // do nothing
+  LatticeField RtoFundamentalProject(const LatticeField& in, Real scale = 1.0) const{}// do nothing
+};
+    
+
+  
+typedef	 FundamentalRep<Nc> FundamentalRepresentation;
+
+NAMESPACE_END(Grid);  
+
+#endif