Lattice_coordinate.h

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/*************************************************************************************
 
    Grid physics library, www.github.com/paboyle/Grid 
 
    Source file: ./lib/lattice/Lattice_coordinate.h
 
    Copyright (C) 2015
 
Author: Peter Boyle <paboyle@ph.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 */
#pragma once 
 
NAMESPACE_BEGIN(Grid);
 
template<class iobj> inline void LatticeCoordinate(Lattice<iobj> &l,int mu)
{
  typedef typename iobj::scalar_type scalar_type;
  typedef typename iobj::vector_type vector_type;
 
  GridBase *grid = l.Grid();
  int Nsimd = grid->iSites();
 
  autoView(l_v, l, CpuWrite);
  thread_for( o, grid->oSites(), {
    vector_type vI;
    Coordinate gcoor;
    ExtractBuffer<scalar_type> mergebuf(Nsimd);
    for(int i=0;i<grid->iSites();i++){
      grid->RankIndexToGlobalCoor(grid->ThisRank(),o,i,gcoor);
      mergebuf[i]=(Integer)gcoor[mu];
    }
    merge<vector_type,scalar_type>(vI,mergebuf);
    l_v[o]=vI;
  });
};
 
NAMESPACE_END(Grid);