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120 lines
3.3 KiB
C++
120 lines
3.3 KiB
C++
/*************************************************************************************
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Grid physics library, www.github.com/paboyle/Grid
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Source file: ./lib/lattice/Lattice_coordinate.h
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Copyright (C) 2015
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Author: Peter Boyle <paboyle@ph.ed.ac.uk>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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See the full license in the file "LICENSE" in the top level distribution directory
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*************************************************************************************/
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/* END LEGAL */
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#pragma once
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NAMESPACE_BEGIN(Grid);
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template<class iobj> inline void LatticeCoordinate(Lattice<iobj> &l,int mu)
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{
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typedef typename iobj::scalar_type scalar_type;
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typedef typename iobj::vector_type vector_type;
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l=Zero();
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GridBase *grid = l.Grid();
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int Nsimd = grid->iSites();
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int cartesian_vol = grid->oSites();
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if ( grid->isIcosahedral() ) {
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cartesian_vol = cartesian_vol - grid->NorthPoleOsites()-grid->SouthPoleOsites();
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}
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{
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autoView(l_v, l, CpuWrite);
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thread_for( o, cartesian_vol, {
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vector_type vI;
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Coordinate gcoor;
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ExtractBuffer<scalar_type> mergebuf(Nsimd);
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for(int i=0;i<grid->iSites();i++){
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grid->RankIndexToGlobalCoor(grid->ThisRank(),o,i,gcoor);
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mergebuf[i]=(Integer)gcoor[mu];
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}
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merge<vector_type,scalar_type>(vI,mergebuf);
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l_v[o]=vI;
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});
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}
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if (grid->isIcosahedralVertex()) {
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uint64_t psites=1;
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Coordinate perpdims;
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typename iobj::scalar_object ss;
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for(int d=2;d<grid->_ndimension-1;d++){
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int pd=grid->_gdimensions[d];
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psites*=pd;
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perpdims.push_back(pd);
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}
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for(uint64_t p=0;p<psites;p++){
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Coordinate orthog;
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Lexicographic::CoorFromIndex(orthog,p,perpdims);
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int icoor;
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if ( mu>=2 && mu < grid->_ndimension-1) {
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icoor = orthog[mu-2];
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} else {
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icoor = -1;
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}
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ss=scalar_type(icoor);
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pokePole(ss,l,orthog,South);
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pokePole(ss,l,orthog,North);
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}
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}
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};
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template<class iobj> inline void LatticePole(Lattice<iobj> &l,NorthSouth pole)
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{
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typedef typename iobj::scalar_object sobj;
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typedef typename iobj::scalar_type scalar_type;
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typedef typename iobj::vector_type vector_type;
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GridBase *grid = l.Grid();
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l=Zero();
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assert(grid->isIcosahedralVertex());
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if (grid->isIcosahedralVertex()) {
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uint64_t psites=1;
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Coordinate perpdims;
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sobj ss;
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scalar_type one(1.0);
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ss=one;
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for(int d=2;d<l.Grid()->_ndimension-1;d++){
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int pd=l.Grid()->_gdimensions[d];
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psites*=pd;
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perpdims.push_back(pd);
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}
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for(uint64_t p=0;p<psites;p++){
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Coordinate orthog;
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Lexicographic::CoorFromIndex(orthog,p,perpdims);
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pokePole(ss,l,orthog,pole);
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}
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}
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};
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NAMESPACE_END(Grid);
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