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update_backward_gauge.c
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/***********************************************************************
* Copyright (C) 2002,2003,2004,2005,2006,2007,2008 Carsten Urbach
*
* This file is part of tmLQCD.
*
* tmLQCD 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 3 of the License, or
* (at your option) any later version.
*
* tmLQCD 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 tmLQCD. If not, see <http://www.gnu.org/licenses/>.
***********************************************************************/
#ifdef HAVE_CONFIG_H
# include<config.h>
#endif
#include <stdlib.h>
#include "global.h"
#include "su3.h"
#include "update_backward_gauge.h"
#if defined _USE_HALFSPINOR
void update_backward_gauge(su3 ** const gf) {
#ifdef OMP
#pragma omp parallel
{
#endif
int ix=0, kb=0, iy=0;
#ifdef OMP
#pragma omp for
#endif
for(ix = 0; ix < VOLUME/2; ix++) {
iy = (VOLUME+RAND)/2+ix;
kb = g_idn[ g_eo2lexic[iy] ][0];
_su3_assign(g_gauge_field_copy[0][ix][0], gf[kb][0]);
kb = g_idn[ g_eo2lexic[iy] ][1];
_su3_assign(g_gauge_field_copy[0][ix][1], gf[kb][1]);
kb = g_idn[ g_eo2lexic[iy] ][2];
_su3_assign(g_gauge_field_copy[0][ix][2], gf[kb][2]);
kb = g_idn[ g_eo2lexic[iy] ][3];
_su3_assign(g_gauge_field_copy[0][ix][3], gf[kb][3]);
kb = g_idn[ g_eo2lexic[ix] ][0];
_su3_assign(g_gauge_field_copy[1][ix][0], gf[kb][0]);
kb = g_idn[ g_eo2lexic[ix] ][1];
_su3_assign(g_gauge_field_copy[1][ix][1], gf[kb][1]);
kb = g_idn[ g_eo2lexic[ix] ][2];
_su3_assign(g_gauge_field_copy[1][ix][2], gf[kb][2]);
kb = g_idn[ g_eo2lexic[ix] ][3];
_su3_assign(g_gauge_field_copy[1][ix][3], gf[kb][3]);
}
#ifdef OMP
} /* OpenMP closing brace */
#endif
g_update_gauge_copy = 0;
return;
}
void update_backward_gauge_32_orphaned(su3_32 ** const gf) {
int ix=0, kb=0, iy=0;
#ifdef OMP
#pragma omp for
#endif
for(ix = 0; ix < VOLUME/2; ix++) {
iy = (VOLUME+RAND)/2+ix;
kb = g_idn[ g_eo2lexic[iy] ][0];
_su3_assign(g_gauge_field_copy_32[0][ix][0], gf[kb][0]);
kb = g_idn[ g_eo2lexic[iy] ][1];
_su3_assign(g_gauge_field_copy_32[0][ix][1], gf[kb][1]);
kb = g_idn[ g_eo2lexic[iy] ][2];
_su3_assign(g_gauge_field_copy_32[0][ix][2], gf[kb][2]);
kb = g_idn[ g_eo2lexic[iy] ][3];
_su3_assign(g_gauge_field_copy_32[0][ix][3], gf[kb][3]);
kb = g_idn[ g_eo2lexic[ix] ][0];
_su3_assign(g_gauge_field_copy_32[1][ix][0], gf[kb][0]);
kb = g_idn[ g_eo2lexic[ix] ][1];
_su3_assign(g_gauge_field_copy_32[1][ix][1], gf[kb][1]);
kb = g_idn[ g_eo2lexic[ix] ][2];
_su3_assign(g_gauge_field_copy_32[1][ix][2], gf[kb][2]);
kb = g_idn[ g_eo2lexic[ix] ][3];
_su3_assign(g_gauge_field_copy_32[1][ix][3], gf[kb][3]);
}
// we use the implicit barrier at the end of the single section to catch all
// threads, in the meantime, one of them modifies the global flag
#ifdef OMP
#pragma omp single
{
#endif
g_update_gauge_copy_32 = 0;
#ifdef OMP
}
#endif
}
void update_backward_gauge_32(su3_32 ** const gf) {
#ifdef OMP
#pragma omp parallel
{
#endif
update_backward_gauge_32_orphaned(gf);
#ifdef OMP
} /* OpenMP closing brace */
#endif
return;
}
#elif _USE_TSPLITPAR
void update_backward_gauge(su3 ** const gf) {
#ifdef OMP
#pragma omp parallel
{
#endif
int ix=0, kb=0, kb2=0;
#ifdef OMP
#pragma omp for
#endif
for(ix = 0; ix < VOLUME/2;ix++) {
kb2=g_eo2lexic[ix];
_su3_assign(g_gauge_field_copyt[ix][0],gf[kb2][0]);
kb=g_idn[g_eo2lexic[ix]][0];
_su3_assign(g_gauge_field_copyt[ix][1],gf[kb][0]);
_su3_assign(g_gauge_field_copys[ix][0],gf[kb2][1]);
kb=g_idn[g_eo2lexic[ix]][1];
_su3_assign(g_gauge_field_copys[ix][1],gf[kb][1]);
_su3_assign(g_gauge_field_copys[ix][2],gf[kb2][2]);
kb=g_idn[g_eo2lexic[ix]][2];
_su3_assign(g_gauge_field_copys[ix][3],gf[kb][2]);
_su3_assign(g_gauge_field_copys[ix][4],gf[kb2][3]);
kb=g_idn[g_eo2lexic[ix]][3];
_su3_assign(g_gauge_field_copys[ix][5],gf[kb][3]);
}
#ifdef OMP
#pragma omp for
#endif
for(ix = (VOLUME+RAND)/2; ix < (VOLUME+RAND)/2+VOLUME/2;ix++) {
kb2=g_eo2lexic[ix];
_su3_assign(g_gauge_field_copyt[ix][0],gf[kb2][0]);
kb=g_idn[g_eo2lexic[ix]][0];
_su3_assign(g_gauge_field_copyt[ix][1],gf[kb][0]);
_su3_assign(g_gauge_field_copys[ix][0],gf[kb2][1]);
kb=g_idn[g_eo2lexic[ix]][1];
_su3_assign(g_gauge_field_copys[ix][1],gf[kb][1]);
_su3_assign(g_gauge_field_copys[ix][2],gf[kb2][2]);
kb=g_idn[g_eo2lexic[ix]][2];
_su3_assign(g_gauge_field_copys[ix][3],gf[kb][2]);
_su3_assign(g_gauge_field_copys[ix][4],gf[kb2][3]);
kb=g_idn[g_eo2lexic[ix]][3];
_su3_assign(g_gauge_field_copys[ix][5],gf[kb][3]);
}
#ifdef OMP
} /* OpenMP closing brace */
#endif
g_update_gauge_copy = 0;
return;
}
#else
void update_backward_gauge(su3 ** const gf) {
#ifdef OMP
#pragma omp parallel
{
#endif
int ix=0, kb=0, kb2=0;
#ifdef OMP
#pragma omp for
#endif
for(ix = 0; ix < VOLUME/2; ix++) {
kb2=g_eo2lexic[ix];
_su3_assign(g_gauge_field_copy[ix][0],gf[kb2][0]);
kb=g_idn[g_eo2lexic[ix]][0];
_su3_assign(g_gauge_field_copy[ix][1],gf[kb][0]);
_su3_assign(g_gauge_field_copy[ix][2],gf[kb2][1]);
kb=g_idn[g_eo2lexic[ix]][1];
_su3_assign(g_gauge_field_copy[ix][3],gf[kb][1]);
_su3_assign(g_gauge_field_copy[ix][4],gf[kb2][2]);
kb=g_idn[g_eo2lexic[ix]][2];
_su3_assign(g_gauge_field_copy[ix][5],gf[kb][2]);
_su3_assign(g_gauge_field_copy[ix][6],gf[kb2][3]);
kb=g_idn[g_eo2lexic[ix]][3];
_su3_assign(g_gauge_field_copy[ix][7],gf[kb][3]);
}
#ifdef OMP
#pragma omp for
#endif
for(ix = (VOLUME+RAND)/2; ix < (VOLUME+RAND)/2+VOLUME/2; ix++) {
kb2=g_eo2lexic[ix];
_su3_assign(g_gauge_field_copy[ix][0],gf[kb2][0]);
kb=g_idn[g_eo2lexic[ix]][0];
_su3_assign(g_gauge_field_copy[ix][1],gf[kb][0]);
_su3_assign(g_gauge_field_copy[ix][2],gf[kb2][1]);
kb=g_idn[g_eo2lexic[ix]][1];
_su3_assign(g_gauge_field_copy[ix][3],gf[kb][1]);
_su3_assign(g_gauge_field_copy[ix][4],gf[kb2][2]);
kb=g_idn[g_eo2lexic[ix]][2];
_su3_assign(g_gauge_field_copy[ix][5],gf[kb][2]);
_su3_assign(g_gauge_field_copy[ix][6],gf[kb2][3]);
kb=g_idn[g_eo2lexic[ix]][3];
_su3_assign(g_gauge_field_copy[ix][7],gf[kb][3]);
}
#ifdef OMP
} /* OpenMP closing brace */
#endif
g_update_gauge_copy = 0;
return;
}
void update_backward_gauge_32_orphaned(su3_32 ** const gf) {
int ix=0, kb=0, kb2=0;
#ifdef OMP
#pragma omp for nowait
#endif
for(ix = 0; ix < VOLUME/2; ix++) {
kb2=g_eo2lexic[ix];
_su3_assign(g_gauge_field_copy_32[ix][0],gf[kb2][0]);
kb=g_idn[g_eo2lexic[ix]][0];
_su3_assign(g_gauge_field_copy_32[ix][1],gf[kb][0]);
_su3_assign(g_gauge_field_copy_32[ix][2],gf[kb2][1]);
kb=g_idn[g_eo2lexic[ix]][1];
_su3_assign(g_gauge_field_copy_32[ix][3],gf[kb][1]);
_su3_assign(g_gauge_field_copy_32[ix][4],gf[kb2][2]);
kb=g_idn[g_eo2lexic[ix]][2];
_su3_assign(g_gauge_field_copy_32[ix][5],gf[kb][2]);
_su3_assign(g_gauge_field_copy_32[ix][6],gf[kb2][3]);
kb=g_idn[g_eo2lexic[ix]][3];
_su3_assign(g_gauge_field_copy_32[ix][7],gf[kb][3]);
}
#ifdef OMP
#pragma omp for nowait
#endif
for(ix = (VOLUME+RAND)/2; ix < (VOLUME+RAND)/2+VOLUME/2; ix++) {
kb2=g_eo2lexic[ix];
_su3_assign(g_gauge_field_copy_32[ix][0],gf[kb2][0]);
kb=g_idn[g_eo2lexic[ix]][0];
_su3_assign(g_gauge_field_copy_32[ix][1],gf[kb][0]);
_su3_assign(g_gauge_field_copy_32[ix][2],gf[kb2][1]);
kb=g_idn[g_eo2lexic[ix]][1];
_su3_assign(g_gauge_field_copy_32[ix][3],gf[kb][1]);
_su3_assign(g_gauge_field_copy_32[ix][4],gf[kb2][2]);
kb=g_idn[g_eo2lexic[ix]][2];
_su3_assign(g_gauge_field_copy_32[ix][5],gf[kb][2]);
_su3_assign(g_gauge_field_copy_32[ix][6],gf[kb2][3]);
kb=g_idn[g_eo2lexic[ix]][3];
_su3_assign(g_gauge_field_copy_32[ix][7],gf[kb][3]);
}
// the threads are caught by the implicit barrier here
#ifdef OMP
#pragma omp single
{
#endif
g_update_gauge_copy_32 = 0;
#ifdef OMP
}
#endif
}
void update_backward_gauge_32(su3_32 ** const gf) {
#ifdef OMP
#pragma omp parallel
{
#endif
update_backward_gauge_32_orphaned(gf);
#ifdef OMP
} /* OpenMP closing brace */
#endif
return;
}
#endif