syssolver_linop_wilson_quda_w.cc

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/*! \file
 *  \brief Solve a MdagM*psi=chi linear system by CG2
 */
 
#include "actions/ferm/invert/syssolver_linop_factory.h"
#include "actions/ferm/invert/syssolver_linop_aggregate.h"
#include "actions/ferm/invert/quda_solvers/syssolver_quda_wilson_params.h"
#include "actions/ferm/invert/quda_solvers/syssolver_linop_wilson_quda_w.h"
#include "io/aniso_io.h"
 
 
#include "handle.h"
#include "actions/ferm/fermstates/periodic_fermstate.h"
#include "actions/ferm/linop/lwldslash_w.h"
#include "meas/glue/mesplq.h"
// QUDA Headers
#include <quda.h>
// #include <util_quda.h>
 
namespace Chroma
{
  namespace LinOpSysSolverQUDAWilsonEnv
  {
 
    //! Anonymous namespace
    namespace
    {
      //! Name to be used
      const std::string name("QUDA_WILSON_INVERTER");
 
      //! Local registration flag
      bool registered = false;
    }
 
 
 
    LinOpSystemSolver<LatticeFermion>* createFerm(XMLReader& xml_in,    
                                                  const std::string& path,
                                                  Handle< FermState< LatticeFermion, multi1d<LatticeColorMatrix>, multi1d<LatticeColorMatrix> > > state, 
                                                  
                                                  Handle< LinearOperator<LatticeFermion> > A)
    {
      return new LinOpSysSolverQUDAWilson(A, state,SysSolverQUDAWilsonParams(xml_in, path));
    }
 
    //! Register all the factories
    bool registerAll() 
    {
      bool success = true; 
      if (! registered)
      {
        success &= Chroma::TheLinOpFermSystemSolverFactory::Instance().registerObject(name, createFerm);
        registered = true;
      }
      return success;
    }
  }
 
  SystemSolverResults_t 
  LinOpSysSolverQUDAWilson::qudaInvert(const T& chi_s,
                                       T& psi_s) const{
 
    SystemSolverResults_t ret;
 
    void *spinorIn;
 
    T mod_chi;
 
    
    spinorIn =(void *)&(chi_s.elem(rb[1].start()).elem(0).elem(0).real());
    
    void* spinorOut =(void *)&(psi_s.elem(rb[1].start()).elem(0).elem(0).real());
 
    // Do the solve here 
    StopWatch swatch1; 
    swatch1.reset();
    swatch1.start();
    invertQuda(spinorOut, spinorIn, (QudaInvertParam*)&quda_inv_param);
    swatch1.stop();
 
    //chi_s[rb[1]] *= invMassParam;
 
    QDPIO::cout << "QUDA_"<<solver_string<<"_WILSON_SOLVER: time="<< quda_inv_param.secs <<" s" ;
    QDPIO::cout << "\tPerformance="<<  quda_inv_param.gflops/quda_inv_param.secs<<" GFLOPS" ; 
    QDPIO::cout << "\tTotal Time (incl. load gauge)=" << swatch1.getTimeInSeconds() <<" s"<<std::endl;
 
    ret.n_count =quda_inv_param.iter;
 
    return ret;
 
  }
  
 
}