disp_soln_cache.h

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// -*- C++ -*-
/*! \file
 * \brief Cache for displaced solution vectors
 */
 
#ifndef __disp_soln_cache_h__
#define __disp_soln_cache_h__
 
 
#include "chromabase.h"
 
#ifndef QDP_IS_QDPJIT_NO_NVPTX
 
#include <qdp_map_obj_disk_multiple.h>
#include <qdp_map_obj_memory.h>
 
//#include "util/ferm/distillation_soln_cache.h"
 
#include <vector>
 
namespace Chroma
{
  //----------------------------------------------------------------------------
  /*!
   * \ingroup ferm
   * @{
   */
 
  //! The key for displaced color vectors
  struct KeyDispSolnVector_t
  {
    bool                      use_derivP;
    std::vector<int>          displacement;    /*!< Orig plus/minus 1-based directional displacements */
    multi1d<int>              mom;
  };
 
  // Quark read
  void read(BinaryReader& bin, KeyDispSolnVector_t& param);
 
  // Quark write
  void write(BinaryWriter& bin, const KeyDispSolnVector_t& param);
  
 
  //---------------------------------------------------------------------
  //! Cache for distillation
  /*! 
   * \ingroup ferm 
   *
   * Holds unsmeared distillation solution vectors
   */
  class DispSolnCache
  {
  public:
    //! Default constructor
    DispSolnCache(const multi1d<LatticeColorMatrix>& u_smr,
                  const LatticeColorVectorSpinMatrix& soln_);
 
    //! Destructor
    virtual ~DispSolnCache() {} 
  
    //! Accessor
    const LatticeColorVectorSpinMatrix& getDispVector(bool use_derivP, const multi1d<int>& mom,
                                        const std::vector<int>& disp);
 
  protected:
    //! Displace an object
    const LatticeColorVectorSpinMatrix& displaceObject(const KeyDispSolnVector_t& key);
                        
  private:
    //! Displacement length
    int displacement_length;
                        
    //! Gauge field 
    const multi1d<LatticeColorMatrix>& u;
                        
    // Disk cache of solutions
    const LatticeColorVectorSpinMatrix& soln;
 
    //! Unsmeared vectors
    QDP::MapObjectMemory<KeyDispSolnVector_t, LatticeColorVectorSpinMatrix>  disp_src_map;
  };
 
  /*! @} */  // end of group ferm
 
} // namespace Chroma
 
#endif // QDP_IS_QDPJIT
#endif // HEADER GUARD