periodic_fermbc.h

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// -*- C++ -*-
/*! @file
 * @brief Fermion action boundary conditions
 */
 
#ifndef __periodic_fermbc_h__
#define __periodic_fermbc_h__
 
#include "fermbc.h"
 
namespace Chroma
{
 
  //! Concrete class for all fermionic actions with trivial boundary conditions
  /*! @ingroup fermbcs
   *
   *  No BC
   */
  template<class T, typename P, typename Q>
  class PeriodicFermBC : public FermBC<T,P,Q>
  {
  public:
    //! Only full constructor
    PeriodicFermBC() {}
 
    //! Destructor is automatic
    ~PeriodicFermBC() {}
 
    //! Modify U fields in place
    /*! NOP */
    void modify(Q& u) const {}
 
    //! Modify fermion fields in place
    /*! NOP */
    void modifyF(T& psi) const {}
 
    //! Modify fermion fields in place under a subset
    /*! NOP */
    void modifyF(T& psi, const Subset& s) const {}
 
    //! Modify fermion fields in place
    /*! NOP */
    void modifyF(multi1d<T>& psi) const {}
    
    //! Modify fermion fields in place under a subset
    /*! NOP */
    void modifyF(multi1d<T>& psi, const Subset& s) const {}
 
    //! Zero some gauge-like field in place on the masked links
    void zero(P& ds_u) const {}
 
    //! Says if there are non-trivial BC links
    bool nontrivialP() const {return false;}
  };
 
}
 
#endif