Hadrons: moving Hadrons to root directory, build system improvements

Grid/qcd/action/fermion/OverlapWilsonPartialFractionTanhFermion.h

@@ -0,0 +1,71 @@
+    /*************************************************************************************
+
+    Grid physics library, www.github.com/paboyle/Grid 
+
+    Source file: ./lib/qcd/action/fermion/OverlapWilsonPartialFractionTanhFermion.h
+
+    Copyright (C) 2015
+
+Author: Peter Boyle <pabobyle@ph.ed.ac.uk>
+Author: Peter Boyle <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 OVERLAP_WILSON_PARTFRAC_TANH_FERMION_H
+#define OVERLAP_WILSON_PARTFRAC_TANH_FERMION_H
+
+#include <Grid/qcd/action/fermion/FermionCore.h>
+
+namespace Grid {
+
+  namespace QCD {
+
+    template<class Impl>
+    class OverlapWilsonPartialFractionTanhFermion : public PartialFractionFermion5D<Impl>
+    {
+    public:
+     INHERIT_IMPL_TYPES(Impl);
+    public:
+
+      virtual void   Instantiatable(void){};
+      // Constructors
+    OverlapWilsonPartialFractionTanhFermion(GaugeField &_Umu,
+					    GridCartesian         &FiveDimGrid,
+					    GridRedBlackCartesian &FiveDimRedBlackGrid,
+					    GridCartesian         &FourDimGrid,
+					    GridRedBlackCartesian &FourDimRedBlackGrid,
+					    RealD _mass,RealD _M5,
+					    RealD scale,const ImplParams &p= ImplParams()) :
+      
+      // b+c=scale, b-c = 0 <=> b =c = scale/2
+      PartialFractionFermion5D<Impl>(_Umu,
+				     FiveDimGrid,
+				     FiveDimRedBlackGrid,
+				     FourDimGrid,
+				     FourDimRedBlackGrid,_mass,_M5,p)
+	{
+	  assert((this->Ls&0x1)==1); // Odd Ls required
+	  int nrational=this->Ls-1;// Even rational order
+	  Approx::zolotarev_data *zdata = Approx::higham(1.0,nrational);// eps is ignored for higham
+	  this->SetCoefficientsTanh(zdata,scale);
+	  Approx::zolotarev_free(zdata);
+	}
+    };
+  }
+}
+#endif