Large scale change to support 5d fermion formulations.

Have 5d replicated wilson with 4d gauge working and matrix regressing
to Ls copies of wilson.

lib/qcd/action/fermion/FermionAction.h

@@ -0,0 +1,47 @@
+#ifndef  GRID_QCD_WILSON_DOP_H
+#define  GRID_QCD_WILSON_DOP_H
+
+namespace Grid {
+
+  namespace QCD {
+
+    //////////////////////////////////////////////////////////////////////////////
+    // Four component fermions
+    // Should type template the vector and gauge types
+    // Think about multiple representations
+    //////////////////////////////////////////////////////////////////////////////
+    template<class FermionField,class GaugeField>
+    class FermionAction : public CheckerBoardedSparseMatrixBase<FermionField>
+    {
+    public:
+
+      GridBase * Grid(void)   { return FermionGrid(); };   // this is all the linalg routines need to know
+      GridBase * RedBlackGrid(void) { return FermionRedBlackGrid(); };
+
+      virtual GridBase *FermionGrid(void)         =0;
+      virtual GridBase *FermionRedBlackGrid(void) =0;
+      virtual GridBase *GaugeGrid(void)           =0;
+      virtual GridBase *GaugeRedBlackGrid(void)   =0;
+
+      // override multiply
+      virtual RealD  M    (const FermionField &in, FermionField &out)=0;
+      virtual RealD  Mdag (const FermionField &in, FermionField &out)=0;
+
+      // half checkerboard operaions
+      virtual void   Meooe       (const FermionField &in, FermionField &out)=0;
+      virtual void   MeooeDag    (const FermionField &in, FermionField &out)=0;
+      virtual void   Mooee       (const FermionField &in, FermionField &out)=0;
+      virtual void   MooeeDag    (const FermionField &in, FermionField &out)=0;
+      virtual void   MooeeInv    (const FermionField &in, FermionField &out)=0;
+      virtual void   MooeeInvDag (const FermionField &in, FermionField &out)=0;
+
+      // non-hermitian hopping term; half cb or both
+      virtual void Dhop  (const FermionField &in, FermionField &out,int dag)=0;
+      virtual void DhopOE(const FermionField &in, FermionField &out,int dag)=0;
+      virtual void DhopEO(const FermionField &in, FermionField &out,int dag)=0;
+
+    };
+
+  }
+}
+#endif