mirror of
https://github.com/paboyle/Grid.git
synced 2025-06-23 18:22:02 +01:00
Merge branch 'develop' into feature/gpu-port
This commit is contained in:
Peter Boyle
217
Grid/lattice/Lattice_peekpoke.h
Normal file
217
Grid/lattice/Lattice_peekpoke.h
Normal file
@ -0,0 +1,217 @@
|
||||
/*************************************************************************************
|
||||
|
||||
Grid physics library, www.github.com/paboyle/Grid
|
||||
|
||||
Source file: ./lib/lattice/Lattice_peekpoke.h
|
||||
|
||||
Copyright (C) 2015
|
||||
|
||||
Author: Azusa Yamaguchi <ayamaguc@staffmail.ed.ac.uk>
|
||||
Author: Peter Boyle <paboyle@ph.ed.ac.uk>
|
||||
Author: Peter Boyle <peterboyle@Peters-MacBook-Pro-2.local>
|
||||
|
||||
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 */
|
||||
#ifndef GRID_LATTICE_PEEK_H
|
||||
#define GRID_LATTICE_PEEK_H
|
||||
|
||||
///////////////////////////////////////////////
|
||||
// Peeking and poking around
|
||||
///////////////////////////////////////////////
|
||||
|
||||
NAMESPACE_BEGIN(Grid);
|
||||
|
||||
|
||||
// FIXME accelerator_loop and accelerator_inline these
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
// Peek internal indices of a Lattice object
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
template<int Index,class vobj>
|
||||
auto PeekIndex(const Lattice<vobj> &lhs,int i) -> Lattice<decltype(peekIndex<Index>(vobj(),i))>
|
||||
{
|
||||
Lattice<decltype(peekIndex<Index>(vobj(),i))> ret(lhs.Grid());
|
||||
ret.Checkerboard()=lhs.Checkerboard();
|
||||
auto ret_v = ret.View();
|
||||
auto lhs_v = lhs.View();
|
||||
cpu_loop( ss, lhs_v, {
|
||||
ret_v[ss] = peekIndex<Index>(lhs_v[ss],i);
|
||||
});
|
||||
return ret;
|
||||
};
|
||||
template<int Index,class vobj>
|
||||
auto PeekIndex(const Lattice<vobj> &lhs,int i,int j) -> Lattice<decltype(peekIndex<Index>(vobj(),i,j))>
|
||||
{
|
||||
Lattice<decltype(peekIndex<Index>(vobj(),i,j))> ret(lhs.Grid());
|
||||
ret.Checkerboard()=lhs.Checkerboard();
|
||||
auto ret_v = ret.View();
|
||||
auto lhs_v = lhs.View();
|
||||
cpu_loop( ss, lhs_v, {
|
||||
ret_v[ss] = peekIndex<Index>(lhs_v[ss],i,j);
|
||||
});
|
||||
return ret;
|
||||
};
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
// Poke internal indices of a Lattice object
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
template<int Index,class vobj>
|
||||
void PokeIndex(Lattice<vobj> &lhs,const Lattice<decltype(peekIndex<Index>(vobj(),0))> & rhs,int i)
|
||||
{
|
||||
auto rhs_v = rhs.View();
|
||||
auto lhs_v = lhs.View();
|
||||
cpu_loop( ss, lhs_v, {
|
||||
pokeIndex<Index>(lhs_v[ss],rhs_v[ss],i);
|
||||
});
|
||||
}
|
||||
template<int Index,class vobj>
|
||||
void PokeIndex(Lattice<vobj> &lhs,const Lattice<decltype(peekIndex<Index>(vobj(),0,0))> & rhs,int i,int j)
|
||||
{
|
||||
auto rhs_v = rhs.View();
|
||||
auto lhs_v = lhs.View();
|
||||
cpu_loop( ss, lhs_v, {
|
||||
pokeIndex<Index>(lhs_v[ss],rhs_v[ss],i,j);
|
||||
});
|
||||
}
|
||||
|
||||
//////////////////////////////////////////////////////
|
||||
// Poke a scalar object into the SIMD array
|
||||
//////////////////////////////////////////////////////
|
||||
template<class vobj,class sobj>
|
||||
void pokeSite(const sobj &s,Lattice<vobj> &l,const Coordinate &site){
|
||||
|
||||
GridBase *grid=l.Grid();
|
||||
|
||||
typedef typename vobj::scalar_type scalar_type;
|
||||
typedef typename vobj::vector_type vector_type;
|
||||
|
||||
int Nsimd = grid->Nsimd();
|
||||
|
||||
assert( l.Checkerboard()== l.Grid()->CheckerBoard(site));
|
||||
assert( sizeof(sobj)*Nsimd == sizeof(vobj));
|
||||
|
||||
int rank,odx,idx;
|
||||
// Optional to broadcast from node 0.
|
||||
grid->GlobalCoorToRankIndex(rank,odx,idx,site);
|
||||
grid->Broadcast(grid->BossRank(),s);
|
||||
|
||||
// extract-modify-merge cycle is easiest way and this is not perf critical
|
||||
ExtractBuffer<sobj> buf(Nsimd);
|
||||
auto l_v = l.View();
|
||||
if ( rank == grid->ThisRank() ) {
|
||||
extract(l_v[odx],buf);
|
||||
buf[idx] = s;
|
||||
merge(l_v[odx],buf);
|
||||
}
|
||||
|
||||
return;
|
||||
};
|
||||
|
||||
|
||||
//////////////////////////////////////////////////////////
|
||||
// Peek a scalar object from the SIMD array
|
||||
//////////////////////////////////////////////////////////
|
||||
template<class vobj,class sobj>
|
||||
void peekSite(sobj &s,const Lattice<vobj> &l,const Coordinate &site){
|
||||
|
||||
GridBase *grid=l.Grid();
|
||||
|
||||
typedef typename vobj::scalar_type scalar_type;
|
||||
typedef typename vobj::vector_type vector_type;
|
||||
|
||||
int Nsimd = grid->Nsimd();
|
||||
|
||||
assert( l.Checkerboard() == l.Grid()->CheckerBoard(site));
|
||||
|
||||
int rank,odx,idx;
|
||||
grid->GlobalCoorToRankIndex(rank,odx,idx,site);
|
||||
|
||||
ExtractBuffer<sobj> buf(Nsimd);
|
||||
auto l_v = l.View();
|
||||
extract(l_v[odx],buf);
|
||||
|
||||
s = buf[idx];
|
||||
|
||||
grid->Broadcast(rank,s);
|
||||
|
||||
return;
|
||||
};
|
||||
|
||||
|
||||
//////////////////////////////////////////////////////////
|
||||
// Peek a scalar object from the SIMD array
|
||||
//////////////////////////////////////////////////////////
|
||||
template<class vobj,class sobj>
|
||||
void peekLocalSite(sobj &s,const Lattice<vobj> &l,Coordinate &site){
|
||||
|
||||
GridBase *grid = l.Grid();
|
||||
|
||||
typedef typename vobj::scalar_type scalar_type;
|
||||
typedef typename vobj::vector_type vector_type;
|
||||
|
||||
int Nsimd = grid->Nsimd();
|
||||
|
||||
assert( l.Checkerboard()== l.Grid()->CheckerBoard(site));
|
||||
assert( sizeof(sobj)*Nsimd == sizeof(vobj));
|
||||
|
||||
static const int words=sizeof(vobj)/sizeof(vector_type);
|
||||
int odx,idx;
|
||||
idx= grid->iIndex(site);
|
||||
odx= grid->oIndex(site);
|
||||
|
||||
auto l_v = l.View();
|
||||
scalar_type * vp = (scalar_type *)&l_v[odx];
|
||||
scalar_type * pt = (scalar_type *)&s;
|
||||
|
||||
for(int w=0;w<words;w++){
|
||||
pt[w] = vp[idx+w*Nsimd];
|
||||
}
|
||||
|
||||
return;
|
||||
};
|
||||
|
||||
template<class vobj,class sobj>
|
||||
void pokeLocalSite(const sobj &s,Lattice<vobj> &l,Coordinate &site){
|
||||
|
||||
GridBase *grid=l.Grid();
|
||||
|
||||
typedef typename vobj::scalar_type scalar_type;
|
||||
typedef typename vobj::vector_type vector_type;
|
||||
|
||||
int Nsimd = grid->Nsimd();
|
||||
|
||||
assert( l.Checkerboard()== l.Grid()->CheckerBoard(site));
|
||||
assert( sizeof(sobj)*Nsimd == sizeof(vobj));
|
||||
|
||||
static const int words=sizeof(vobj)/sizeof(vector_type);
|
||||
int odx,idx;
|
||||
idx= grid->iIndex(site);
|
||||
odx= grid->oIndex(site);
|
||||
|
||||
auto l_v = l.View();
|
||||
scalar_type * vp = (scalar_type *)&l_v[odx];
|
||||
scalar_type * pt = (scalar_type *)&s;
|
||||
for(int w=0;w<words;w++){
|
||||
vp[idx+w*Nsimd] = pt[w];
|
||||
}
|
||||
|
||||
return;
|
||||
};
|
||||
|
||||
NAMESPACE_END(Grid);
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user