multi_syssolver_mdagm_cg_array.cc

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/*! \file
 *  \brief Solve a MdagM*psi=chi linear system by multi-shift CG
 */
 
#include "actions/ferm/invert/multi_syssolver_mdagm_factory.h"
#include "actions/ferm/invert/multi_syssolver_mdagm_aggregate.h"
 
#include "actions/ferm/invert/multi_syssolver_mdagm_cg_array.h"
 
namespace Chroma
{
 
  //! CG system solver namespace
  namespace MdagMMultiSysSolverCGArrayEnv
  {
    //! Callback function
    MdagMMultiSystemSolverArray<LatticeFermion>* createFerm(XMLReader& xml_in,
                                                            const std::string& path,
                                                            Handle< FermState< LatticeFermion, multi1d<LatticeColorMatrix>, multi1d<LatticeColorMatrix> > >,
                                                            Handle< LinearOperatorArray<LatticeFermion> > A)
    {
      return new MdagMMultiSysSolverCGArray<LatticeFermion>(A, MultiSysSolverCGParams(xml_in, path));
    }
 
    //! Name to be used
    const std::string name("CG_INVERTER");
 
    //! Local registration flag
    static bool registered = false;
 
    //! Register all the factories
    bool registerAll() 
    {
      bool success = true; 
      if (! registered)
      {
        success &= Chroma::TheMdagMFermMultiSystemSolverArrayFactory::Instance().registerObject(name, createFerm);
        registered = true;
      }
      return success;
    }
  }
}