All functionalities ready.

Todo: add all the fermion action modules

lib/qcd/modules/FermionOperatorModules.h

@@ -0,0 +1,146 @@
+/*************************************************************************************
+
+Grid physics library, www.github.com/paboyle/Grid
+
+Source file: ./lib/qcd/modules/FermionOperatorModules.h
+
+Copyright (C) 2016
+
+Author: Guido Cossu <guido.cossu@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 FERMIONOPERATOR_MODULES_H
+#define FERMIONOPERATOR_MODULES_H
+
+namespace Grid {
+
+////////////////////////////////////
+//  Fermion operators
+/////////////////////////////////////
+template < class Product>
+class FermionOperatorModuleBase : public HMCModuleBase<Product>{
+public:
+  virtual void AddGridPair(QCD::GridModule&) = 0;
+};
+
+template <template <typename> class FOType, class FermionImpl, class FOPar>
+class FermionOperatorModule
+    : public Parametrized<FOPar>,
+      public FermionOperatorModuleBase<QCD::FermionOperator<FermionImpl> > {
+
+protected:
+  std::unique_ptr< FOType<FermionImpl> > FOPtr;
+  std::vector< std::reference_wrapper<QCD::GridModule> >    GridRefs;
+ public:
+  typedef HMCModuleBase< QCD::FermionOperator<FermionImpl> > Base;
+  typedef typename Base::Product Product;
+
+  FermionOperatorModule(FOPar Par) : Parametrized<FOPar>(Par) {}
+
+  template <class ReaderClass>
+  FermionOperatorModule(Reader<ReaderClass>& Reader) : Parametrized<FOPar>(Reader){};
+
+  void AddGridPair(QCD::GridModule &Mod){
+    if (GridRefs.size()>2){
+      std::cout << GridLogError << "Adding too many Grids to the FermionOperatorModule" << std::endl;
+      exit(1);
+    }
+    GridRefs.push_back(Mod);
+  }
+
+  virtual void print_parameters(){
+    std::cout << this->Par_ << std::endl;
+  }
+
+  Product* getPtr() {
+    if (!FOPtr) initialize();
+
+    return FOPtr.get();
+  }
+
+ private:
+  virtual void initialize() = 0;
+};
+
+
+
+// Factory
+template <char const *str, class FermionImpl, class ReaderClass >
+class HMC_FermionOperatorModuleFactory
+    : public Factory < FermionOperatorModuleBase<QCD::FermionOperator<FermionImpl> > ,  Reader<ReaderClass> > {
+ public:
+  // use SINGLETON FUNCTOR MACRO HERE
+  typedef Reader<ReaderClass> TheReader; 
+
+  HMC_FermionOperatorModuleFactory(const HMC_FermionOperatorModuleFactory& e) = delete;
+  void operator=(const HMC_FermionOperatorModuleFactory& e) = delete;
+  static HMC_FermionOperatorModuleFactory& getInstance(void) {
+    static HMC_FermionOperatorModuleFactory e;
+    return e;
+  }
+
+ private:
+  HMC_FermionOperatorModuleFactory(void) = default;
+    std::string obj_type() const {
+        return std::string(str);
+  }
+};
+
+
+
+
+extern char fermionop_string[];
+namespace QCD{
+
+// Modules
+class WilsonFermionParameters : Serializable {
+ public:
+  GRID_SERIALIZABLE_CLASS_MEMBERS(WilsonFermionParameters, 
+    RealD, mass);
+};
+
+
+template <class FermionImpl >
+class WilsonFermionModule: public FermionOperatorModule<WilsonFermion, FermionImpl, WilsonFermionParameters> {
+  typedef FermionOperatorModule<WilsonFermion, FermionImpl, WilsonFermionParameters> FermBase;
+  using FermBase::FermBase; // for constructors
+
+  // acquire resource
+  virtual void initialize(){
+    typename FermionImpl::GaugeField U(this->GridRefs[0].get().get_full());
+    this->FOPtr.reset(new WilsonFermion<FermionImpl>(U, *(this->GridRefs[0].get().get_full()), *(this->GridRefs[0].get().get_rb()), this->Par_.mass));
+  }
+};
+
+
+// Now a specific registration with a fermion field
+static Registrar< WilsonFermionModule<WilsonImplR>,   
+                  HMC_FermionOperatorModuleFactory<fermionop_string, WilsonImplR, XmlReader> > __WilsonFOPmodXMLInit("Wilson"); 
+
+
+} // QCD
+
+
+
+
+} // Grid
+
+
+#endif //SOLVER_MODULES_H