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xchange_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/>.
*
* exchange routines for gauge fields
*
* Author: Carsten Urbach
*
**********************************************************/
#ifdef HAVE_CONFIG_H
# include<config.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#ifdef MPI
# include <mpi.h>
#endif
#include "global.h"
#include "mpi_init.h"
#include "su3.h"
#include "su3adj.h"
#include "xchange_gauge.h"
#if defined _NON_BLOCKING
/* this if statement will be removed in future and _INDEX_INDEP_GEOM will be the default */
# if defined _INDEX_INDEP_GEOM
void xchange_gauge(su3 ** const gf) {
int cntr=0;
# ifdef MPI
MPI_Request request[105];
MPI_Status status[105];
# if (defined PARALLELT || defined PARALLELXT || defined PARALLELXYT || defined PARALLELXYZT )
/* send the data to the neighbour on the left */
/* recieve the data from the neighbour on the right */
MPI_Isend(gf[gI_0_0_0_0], 1, gauge_time_slice_cont, g_nb_t_dn, 83,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_L_0_0_0], 1, gauge_time_slice_cont, g_nb_t_up, 83,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right */
/* recieve the data from the neighbour on the left */
MPI_Isend(gf[gI_Lm1_0_0_0], 1, gauge_time_slice_cont, g_nb_t_up, 84,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_m1_0_0_0], 1, gauge_time_slice_cont, g_nb_t_dn, 84,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
if(g_dbw2rand > 0) {
/* send the data to the neighbour on the left */
/* recieve the data from the neighbour on the right */
/* t2-Rand */
MPI_Isend(gf[gI_p1_0_0_0], 1, gauge_time_slice_cont, g_nb_t_dn, 85,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_Lp1_0_0_0], 1, gauge_time_slice_cont, g_nb_t_up, 85,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right */
/* recieve the data from the neighbour on the left */
/* t2-Rand */
MPI_Isend(gf[gI_Lm2_0_0_0], 1, gauge_time_slice_cont, g_nb_t_up, 86,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_m2_0_0_0], 1, gauge_time_slice_cont, g_nb_t_dn, 86,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
}
# endif
# if (defined PARALLELXT || defined PARALLELXYT || defined PARALLELXYZT || defined PARALLELX || defined PARALLELXY || defined PARALLELXYZ )
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
MPI_Isend(gf[gI_0_0_0_0], 1, gauge_x_slice_gath, g_nb_x_dn, 87,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_L_0_0], 1, gauge_x_slice_cont, g_nb_x_up, 87,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* x-Rand */
MPI_Isend(gf[gI_0_Lm1_0_0], 1, gauge_x_slice_gath, g_nb_x_up, 88,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_m1_0_0], 1, gauge_x_slice_cont, g_nb_x_dn, 88,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
if(g_dbw2rand > 0) {
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
/* x2-Rand */
MPI_Isend(gf[gI_0_p1_0_0], 1, gauge_x_slice_gath, g_nb_x_dn, 89,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_Lp1_0_0], 1, gauge_x_slice_cont, g_nb_x_up, 89,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* x2-Rand */
MPI_Isend(gf[gI_0_Lm2_0_0], 1, gauge_x_slice_gath, g_nb_x_up, 90,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_m2_0_0], 1, gauge_x_slice_cont, g_nb_x_dn, 90,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
}
# endif
MPI_Waitall(cntr, request, status);
cntr=0;
/* Communications of the xt (x2t and t2x) edges are done by using the previously
communicated x-borders whose t-borders are now exchanged in t directions [ORD!] */
/* In this case the code cannot be completely independent of the definition in Index,
since gauge_xt_edge_gath are defined by joining together the x=L and the x=-1 parts.
For this reason we need to know that x=L comes before x=-1 in the definition of
Index() and hence we need to refer to the starting point gI_0_L_0_0 . [DEP!] */
# if (defined PARALLELXT || defined PARALLELXYT || defined PARALLELXYZT )
/* send the data to the neighbour on the left in t direction */
/* recieve the data from the neighbour on the right in t direction */
/* is on the x-Rand: xt-edge */
MPI_Isend(gf[gI_0_L_0_0], 1, gauge_xt_edge_gath, g_nb_t_dn, 100,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_L_L_0_0], 1, gauge_xt_edge_cont, g_nb_t_up, 100,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in t direction */
/* recieve the data from the neighbour on the left in t direction */
/* xt-edge */
MPI_Isend(gf[gI_Lm1_L_0_0], 1, gauge_xt_edge_gath, g_nb_t_up, 101,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_m1_L_0_0], 1, gauge_xt_edge_cont, g_nb_t_dn, 101,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
if(g_dbw2rand > 0) {
/* send the data to the neighbour on the left in t direction */
/* recieve the data from the neighbour on the right in t direction */
/* t2x-edge */
MPI_Isend(gf[gI_p1_L_0_0], 1, gauge_xt_edge_gath, g_nb_t_dn, 102,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_Lp1_L_0_0], 1, gauge_xt_edge_cont, g_nb_t_up, 102,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in t direction */
/* recieve the data from the neighbour on the left in t direction */
/* t2x-edge */
MPI_Isend(gf[gI_Lm2_L_0_0], 1, gauge_xt_edge_gath, g_nb_t_up, 103,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_m2_L_0_0], 1, gauge_xt_edge_cont, g_nb_t_dn, 103,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the left in t direction */
/* recieve the data from the neighbour on the right in t direction */
/* x2t-edge */ /* x=L+1 comes before x=-2. see [DEP!] */
MPI_Isend(gf[gI_0_Lp1_0_0], 1, gauge_xt_edge_gath, g_nb_t_dn, 104,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_L_Lp1_0_0], 1, gauge_xt_edge_cont, g_nb_t_up, 104,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in t direction */
/* recieve the data from the neighbour on the left in t direction */
/* x2t-edge */
MPI_Isend(gf[gI_Lm1_Lp1_0_0], 1, gauge_xt_edge_gath, g_nb_t_up, 105,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_m1_Lp1_0_0], 1, gauge_xt_edge_cont, g_nb_t_dn, 105,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
}
# endif
# if (defined PARALLELXYT || defined PARALLELXYZT || defined PARALLELXY || defined PARALLELXYZ )
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
MPI_Isend(gf[gI_0_0_0_0], 1, gauge_y_slice_gath, g_nb_y_dn, 106,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_L_0], 1, gauge_y_slice_cont, g_nb_y_up, 106,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
MPI_Isend(gf[gI_0_0_Lm1_0], 1, gauge_y_slice_gath, g_nb_y_up, 107,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_m1_0], 1, gauge_y_slice_cont, g_nb_y_dn, 107,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
if(g_dbw2rand > 0) {
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
/* y2-Rand */
MPI_Isend(gf[gI_0_0_p1_0], 1, gauge_y_slice_gath, g_nb_y_dn, 108,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_Lp1_0], 1, gauge_y_slice_cont, g_nb_y_up, 108,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* y2-Rand */
MPI_Isend(gf[gI_0_0_Lm2_0], 1, gauge_y_slice_gath, g_nb_y_up, 109,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_m2_0], 1, gauge_y_slice_cont, g_nb_y_dn, 109,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
}
# endif
MPI_Waitall(cntr, request, status);
cntr=0;
/* see [ORD!] above, where now x plays the role of t and y the role of x */
/* see [DEP!] above, where now y=L comes before y=-1 */
# if (defined PARALLELXYT || defined PARALLELXYZT || defined PARALLELXY || defined PARALLELXYZ )
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
/* is on the y-Rand -> yx-edge*/
MPI_Isend(gf[gI_0_0_L_0], 1, gauge_yx_edge_gath, g_nb_x_dn, 110,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_L_L_0], 1, gauge_yx_edge_cont, g_nb_x_up, 110,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* yx-edge */
MPI_Isend(gf[gI_0_Lm1_L_0], 1, gauge_yx_edge_gath, g_nb_x_up, 111,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_m1_L_0], 1, gauge_yx_edge_cont, g_nb_x_dn, 111,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
# endif
/* see [ORD!] above, where now y plays the role of t and t the role of x */
/* see [DEP!] above, where now t=L comes before t=-1 */
# if (defined PARALLELXYT || defined PARALLELXYZT )
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* is on the t-Rand -> ty-edge*/
MPI_Isend(gf[gI_L_0_0_0], 1, gauge_ty_edge_gath, g_nb_y_dn, 112,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_L_0_L_0], 1, gauge_ty_edge_cont, g_nb_y_up, 112,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* ty-edge */
MPI_Isend(gf[gI_L_0_Lm1_0], 1, gauge_ty_edge_gath, g_nb_y_up, 113,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_L_0_m1_0], 1, gauge_ty_edge_cont, g_nb_y_dn, 113,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
# endif
if(g_dbw2rand > 0) {
# if (defined PARALLELXYT || defined PARALLELXYZT || defined PARALLELXY || defined PARALLELXYZ )
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* x2y edge */ /* y=L comes before y=-1 */
MPI_Isend(gf[gI_0_p1_L_0], 1, gauge_yx_edge_gath, g_nb_x_dn, 114,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_Lp1_L_0], 1, gauge_yx_edge_cont, g_nb_x_up, 114,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* x2y-edge */
MPI_Isend(gf[gI_0_Lm2_L_0], 1, gauge_yx_edge_gath, g_nb_x_up, 115,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_m2_L_0], 1, gauge_yx_edge_cont, g_nb_x_dn, 115,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* y2x -edge */
MPI_Isend(gf[gI_0_0_Lp1_0], 1, gauge_yx_edge_gath, g_nb_x_dn, 116,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_L_Lp1_0], 1, gauge_yx_edge_cont, g_nb_x_up, 116,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* y2x edge */
MPI_Isend(gf[gI_0_Lm1_Lp1_0], 1, gauge_yx_edge_gath, g_nb_x_up, 117,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_m1_Lp1_0], 1, gauge_yx_edge_cont, g_nb_x_dn, 117,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
# endif
# if (defined PARALLELXYT || defined PARALLELXYZT )
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* t2y-edge */
MPI_Isend(gf[gI_Lp1_0_0_0], 1, gauge_ty_edge_gath, g_nb_y_dn, 118,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_Lp1_0_L_0], 1, gauge_ty_edge_cont, g_nb_y_up, 118,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* t2y edge */
MPI_Isend(gf[gI_Lp1_0_Lm1_0], 1, gauge_ty_edge_gath, g_nb_y_up, 119,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_Lp1_0_m1_0], 1, gauge_ty_edge_cont, g_nb_y_dn, 119,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* y2t edge */
MPI_Isend(gf[gI_L_0_p1_0], 1, gauge_ty_edge_gath, g_nb_y_dn, 120,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_L_0_Lp1_0], 1, gauge_ty_edge_cont, g_nb_y_up, 120,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* y2t-edge */
MPI_Isend(gf[gI_L_0_Lm2_0], 1, gauge_ty_edge_gath, g_nb_y_up, 121,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_L_0_m2_0], 1, gauge_ty_edge_cont, g_nb_y_dn, 121,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
# endif
}
# if (defined PARALLELXYZT || defined PARALLELXYZ )
/* z-Rand */
/* send the data to the neighbour on the left in z direction */
/* recieve the data from the neighbour on the right in z direction */
MPI_Isend(gf[gI_0_0_0_0], 1, gauge_z_slice_gath, g_nb_z_dn, 122,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_0_L], 1, gauge_z_slice_cont, g_nb_z_up, 122,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in z direction */
/* recieve the data from the neighbour on the left in z direction */
MPI_Isend(gf[gI_0_0_0_Lm1], 1, gauge_z_slice_gath, g_nb_z_up, 123,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_0_m1], 1, gauge_z_slice_cont, g_nb_z_dn, 123,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
if(g_dbw2rand > 0) {
/* send the data to the neighbour on the left in z direction */
/* recieve the data from the neighbour on the right in z direction */
/* z2-Rand */
MPI_Isend(gf[gI_0_0_0_p1], 1, gauge_z_slice_gath, g_nb_z_dn, 124,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_0_Lp1], 1, gauge_z_slice_cont, g_nb_z_up, 124,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in z direction */
/* recieve the data from the neighbour on the left in z direction */
/* z2-Rand */
MPI_Isend(gf[gI_0_0_0_Lm2], 1, gauge_z_slice_gath, g_nb_z_up, 125,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_0_m2], 1, gauge_z_slice_cont, g_nb_z_dn, 125,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
}
# endif
MPI_Waitall(cntr, request, status);
cntr=0;
/* see [ORD!] above, where now x plays the role of t and z the role of x */
/* see [DEP!] above, where now z=L comes before z=-1 */
# if (defined PARALLELXYZT || defined PARALLELXYZ )
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
/* is on the z-Rand -> zx-edge*/
MPI_Isend(gf[gI_0_0_0_L], 1, gauge_zx_edge_gath, g_nb_x_dn, 126,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_L_0_L], 1, gauge_zx_edge_cont, g_nb_x_up, 126,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* zx-edge */
MPI_Isend(gf[gI_0_Lm1_0_L], 1, gauge_zx_edge_gath, g_nb_x_up, 127,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_m1_0_L],
1, gauge_zx_edge_cont, g_nb_x_dn, 127,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
# endif
/* see [ORD!] above, where now z plays the role of t and t the role of x */
/* see [DEP!] above, where now t=L comes before t=-1 */
# if (defined PARALLELXYZT)
/* send the data to the neighbour on the left in z direction */
/* recieve the data from the neighbour on the right in z direction */
/* is on the t-Rand -> tz-edge*/
MPI_Isend(gf[gI_L_0_0_0], 1, gauge_tz_edge_gath, g_nb_z_dn, 128,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_L_0_0_L], 1, gauge_tz_edge_cont, g_nb_z_up, 128,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in z direction */
/* recieve the data from the neighbour on the left in z direction */
/* tz-edge */
MPI_Isend(gf[gI_L_0_0_Lm1], 1, gauge_tz_edge_gath, g_nb_z_up, 129,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_L_0_0_m1], 1, gauge_tz_edge_cont, g_nb_z_dn, 129,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
# endif
/* see [ORD!] above, where now y plays the role of t and z the role of x */
/* see [DEP!] above, where now z=L comes before z=-1 */
# if (defined PARALLELXYZT || defined PARALLELXYZ )
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* is on the z-Rand -> zy-edge*/
MPI_Isend(gf[gI_0_0_0_L], 1, gauge_zy_edge_gath, g_nb_y_dn, 130,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_L_L], 1, gauge_zy_edge_cont, g_nb_y_up, 130,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* zy-edge */
MPI_Isend(gf[gI_0_0_Lm1_L], 1, gauge_zy_edge_gath, g_nb_y_up, 131,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_m1_L], 1, gauge_zy_edge_cont, g_nb_y_dn, 131,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
# endif
if(g_dbw2rand > 0) {
# if (defined PARALLELXYZT)
/* send the data to the neighbour on the left in z direction */
/* recieve the data from the neighbour on the right in z direction */
/* t2z edge */ /* t=L+1 comes before t=-2*/
MPI_Isend(gf[gI_Lp1_0_0_0], 1, gauge_tz_edge_gath, g_nb_z_dn, 132,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_Lp1_0_0_L], 1, gauge_tz_edge_cont, g_nb_z_up, 132,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in z direction */
/* recieve the data from the neighbour on the left in z direction */
/* t2z-edge */
MPI_Isend(gf[gI_Lp1_0_0_Lm1], 1, gauge_tz_edge_gath, g_nb_z_up, 133,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_Lp1_0_0_m1], 1, gauge_tz_edge_cont, g_nb_z_dn, 133,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the left in z direction */
/* recieve the data from the neighbour on the right in z direction */
/* z2t -edge */
MPI_Isend(gf[gI_L_0_0_p1], 1, gauge_tz_edge_gath, g_nb_z_dn, 134,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_L_0_0_Lp1], 1, gauge_tz_edge_cont, g_nb_z_up, 134,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in z direction */
/* recieve the data from the neighbour on the left in z direction */
/* z2t edge */
MPI_Isend(gf[gI_L_0_0_Lm2], 1, gauge_tz_edge_gath, g_nb_z_up, 135,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_L_0_0_m2], 1, gauge_tz_edge_cont, g_nb_z_dn, 135,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
# endif
# if (defined PARALLELXYZT || defined PARALLELXYZ )
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
/* z2x-edge */
MPI_Isend(gf[gI_0_0_0_Lp1], 1, gauge_zx_edge_gath, g_nb_x_dn, 136,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_L_0_Lp1], 1, gauge_zx_edge_cont, g_nb_x_up, 136,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* z2x edge */
MPI_Isend(gf[gI_0_Lm1_0_Lp1], 1, gauge_zx_edge_gath, g_nb_x_up, 137,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_m1_0_Lp1], 1, gauge_zx_edge_cont, g_nb_x_dn, 137,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
/* x2z edge */
MPI_Isend(gf[gI_0_p1_0_L], 1, gauge_zx_edge_gath, g_nb_x_dn, 138,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_Lp1_0_L], 1, gauge_zx_edge_cont, g_nb_x_up, 138,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* x2z-edge */
MPI_Isend(gf[gI_0_Lm2_0_L], 1, gauge_zx_edge_gath, g_nb_x_up, 139,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_m2_0_L], 1, gauge_zx_edge_cont, g_nb_x_dn, 139,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
# endif
# if (defined PARALLELXYZT || defined PARALLELXYZ )
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* z2y-edge */ /* z=L+1 comes before z=-2 */
MPI_Isend(gf[gI_0_0_0_Lp1], 1, gauge_zy_edge_gath, g_nb_y_dn, 140,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_L_Lp1], 1, gauge_zy_edge_cont, g_nb_y_up, 140,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* z2y edge */
MPI_Isend(gf[gI_0_0_Lm1_Lp1], 1, gauge_zy_edge_gath, g_nb_y_up, 141,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_m1_Lp1], 1, gauge_zy_edge_cont, g_nb_y_dn, 141,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* y2z edge */ /* z=L comes before z=-1 */
MPI_Isend(gf[gI_0_0_p1_L], 1, gauge_zy_edge_gath, g_nb_y_dn, 142,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_Lp1_L], 1, gauge_zy_edge_cont, g_nb_y_up, 142,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* y2z-edge */
MPI_Isend(gf[gI_0_0_Lm2_L], 1, gauge_zy_edge_gath, g_nb_y_up, 143,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[gI_0_0_m2_L], 1, gauge_zy_edge_cont, g_nb_y_dn, 143,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
# endif
}
# if (defined PARALLELXYZT || defined PARALLELXYZ )
MPI_Waitall(cntr, request, status);
# endif
# endif /* MPI */
return;
}
# else /* _INDEX_INDEP_GEOM */
void xchange_gauge(su3 ** const gf) {
int cntr=0;
# ifdef MPI
MPI_Request request[105];
MPI_Status status[105];
/* send the data to the neighbour on the left */
/* recieve the data from the neighbour on the right */
MPI_Isend(gf[0], 1, gauge_time_slice_cont, g_nb_t_dn, 83,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME], 1, gauge_time_slice_cont, g_nb_t_up, 83,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right */
/* recieve the data from the neighbour on the left */
MPI_Isend(gf[(T-1)*LX*LY*LZ], 1, gauge_time_slice_cont, g_nb_t_up, 84,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[(T+1)*LX*LY*LZ], 1, gauge_time_slice_cont, g_nb_t_dn, 84,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
if(g_dbw2rand > 0) {
/* send the data to the neighbour on the left */
/* recieve the data from the neighbour on the right */
/* t2-Rand */
MPI_Isend(gf[1*LX*LY*LZ], 1, gauge_time_slice_cont, g_nb_t_dn, 85,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND], 1, gauge_time_slice_cont, g_nb_t_up, 85,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right */
/* recieve the data from the neighbour on the left */
/* t2-Rand */
MPI_Isend(gf[(T-2)*LX*LY*LZ], 1, gauge_time_slice_cont, g_nb_t_up, 86,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND+LX*LY*LZ], 1, gauge_time_slice_cont, g_nb_t_dn, 86,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
}
# if (defined PARALLELXT || defined PARALLELXYT || defined PARALLELXYZT)
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
MPI_Isend(gf[0], 1, gauge_x_slice_gath, g_nb_x_dn, 87,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[(T+2)*LX*LY*LZ], 1, gauge_x_slice_cont, g_nb_x_up, 87,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* x-Rand */
MPI_Isend(gf[(LX-1)*LY*LZ], 1, gauge_x_slice_gath, g_nb_x_up, 88,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[(T+2)*LX*LY*LZ + T*LY*LZ], 1, gauge_x_slice_cont, g_nb_x_dn, 88,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
if(g_dbw2rand > 0) {
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
/* x2-Rand */
MPI_Isend(gf[LY*LZ], 1, gauge_x_slice_gath, g_nb_x_dn, 89,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND+2*LX*LY*LZ], 1, gauge_x_slice_cont, g_nb_x_up, 89,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* x2-Rand */
MPI_Isend(gf[(LX-2)*LY*LZ], 1, gauge_x_slice_gath, g_nb_x_up, 90,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND+2*LX*LY*LZ + T*LY*LZ], 1, gauge_x_slice_cont, g_nb_x_dn, 90,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
}
# endif
MPI_Waitall(cntr, request, status);
cntr=0;
# if (defined PARALLELXT || defined PARALLELXYT || defined PARALLELXYZT)
/* The edges */
/* send the data to the neighbour on the left in t direction */
/* recieve the data from the neighbour on the right in t direction */
/* is on the x-Rand: xt-edge */
MPI_Isend(gf[(T+2)*LX*LY*LZ], 1, gauge_xt_edge_gath, g_nb_t_dn, 100,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + RAND], 1, gauge_xt_edge_cont, g_nb_t_up, 100,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in t direction */
/* recieve the data from the neighbour on the left in t direction */
/* xt-edge */
MPI_Isend(gf[(T+2)*LX*LY*LZ + (T-1)*LY*LZ], 1, gauge_xt_edge_gath, g_nb_t_up, 101,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + RAND + 2*LY*LZ], 1, gauge_xt_edge_cont, g_nb_t_dn, 101,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
if(g_dbw2rand > 0) {
/* send the data to the neighbour on the left in t direction */
/* recieve the data from the neighbour on the right in t direction */
/* t2x-edge */
MPI_Isend(gf[(T+2)*LX*LY*LZ + LY*LZ],
1, gauge_xt_edge_gath, g_nb_t_dn, 102,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND],
1, gauge_xt_edge_cont, g_nb_t_up, 102,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in t direction */
/* recieve the data from the neighbour on the left in t direction */
/* t2x-edge */
MPI_Isend(gf[(T+2)*LX*LY*LZ + (T-2)*LY*LZ],
1, gauge_xt_edge_gath, g_nb_t_up, 103,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND + 2*LY*LZ],
1, gauge_xt_edge_cont, g_nb_t_dn, 103,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the left in t direction */
/* recieve the data from the neighbour on the right in t direction */
/* x2t-edge */
MPI_Isend(gf[VOLUMEPLUSRAND + 2*LX*LY*LZ],
1, gauge_xt_edge_gath, g_nb_t_dn, 104,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND + 4*LY*LZ],
1, gauge_xt_edge_cont, g_nb_t_up, 104,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in t direction */
/* recieve the data from the neighbour on the left in t direction */
/* x2t-edge */
MPI_Isend(gf[VOLUMEPLUSRAND + 2*LX*LY*LZ + (T-1)*LY*LZ],
1, gauge_xt_edge_gath, g_nb_t_up, 105,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND + 6*LY*LZ],
1, gauge_xt_edge_cont, g_nb_t_dn, 105,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
}
/* end of if defined PARALLELXT || PARALLELXYT || PARALLELXYZT*/
# endif
# if (defined PARALLELXYT || defined PARALLELXYZT)
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
MPI_Isend(gf[0], 1, gauge_y_slice_gath, g_nb_y_dn, 106,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + 2*LZ*(LX*LY + T*LY)], 1, gauge_y_slice_cont, g_nb_y_up, 106,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
MPI_Isend(gf[(LY-1)*LZ], 1, gauge_y_slice_gath, g_nb_y_up, 107,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + 2*LZ*(LX*LY + T*LY) + T*LX*LZ], 1, gauge_y_slice_cont, g_nb_y_dn, 107,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
if(g_dbw2rand > 0) {
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
/* y2-Rand */
MPI_Isend(gf[LZ], 1, gauge_y_slice_gath, g_nb_y_dn, 108,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND+(2*LX+2*T)*LY*LZ], 1, gauge_y_slice_cont, g_nb_y_up, 108,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* y2-Rand */
MPI_Isend(gf[(LY-2)*LZ], 1, gauge_y_slice_gath, g_nb_y_up, 109,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND+(2*LX+2*T)*LY*LZ + T*LX*LZ], 1, gauge_y_slice_cont, g_nb_y_dn, 109,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
}
# endif
MPI_Waitall(cntr, request, status);
cntr=0;
# if (defined PARALLELXYT || defined PARALLELXYZT)
/* jetzt wirds richtig eklig ... */
/* edges */
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
/* is on the y-Rand -> yx-edge*/
MPI_Isend(gf[VOLUME + 2*LX*LY*LZ + 2*T*LY*LZ], 1, gauge_yx_edge_gath, g_nb_x_dn, 110,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + RAND + 4*LY*LZ], 1, gauge_yx_edge_cont, g_nb_x_up, 110,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* yx-edge */
MPI_Isend(gf[VOLUME + 2*LZ*(LX*LY + T*LY) + (LX-1)*LZ], 1, gauge_yx_edge_gath, g_nb_x_up, 111,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + RAND + 4*LY*LZ + 2*T*LZ], 1, gauge_yx_edge_cont, g_nb_x_dn, 111,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* is on the t-Rand -> ty-edge*/
MPI_Isend(gf[VOLUME], 1, gauge_ty_edge_gath, g_nb_y_dn, 112,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + RAND + 4*LY*LZ + 4*T*LZ], 1, gauge_ty_edge_cont, g_nb_y_up, 112,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* ty-edge */
MPI_Isend(gf[VOLUME + (LY-1)*LZ], 1, gauge_ty_edge_gath, g_nb_y_up, 113,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + RAND + 4*LY*LZ + 4*T*LZ + 2*LX*LZ], 1, gauge_ty_edge_cont, g_nb_y_dn, 113,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
if(g_dbw2rand > 0) {
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* x2y edge */
MPI_Isend(gf[VOLUME + 2*LX*LY*LZ + 2*T*LY*LZ + LZ],
1, gauge_yx_edge_gath, g_nb_x_dn, 114,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND + 8*LY*LZ],
1, gauge_yx_edge_cont, g_nb_x_up, 114,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* x2y-edge */
MPI_Isend(gf[VOLUME + 2*LX*LY*LZ + 2*T*LY*LZ + (LX-2)*LZ],
1, gauge_yx_edge_gath, g_nb_x_up, 115,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND + 8*LY*LZ + 2*T*LZ],
1, gauge_yx_edge_cont, g_nb_x_dn, 115,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* y2x -edge */
MPI_Isend(gf[VOLUMEPLUSRAND + 2*LX*LY*LZ + 2*T*LY*LZ],
1, gauge_yx_edge_gath, g_nb_x_dn, 116,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND + 8*LY*LZ + 4*T*LZ],
1, gauge_yx_edge_cont, g_nb_x_up, 116,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* y2x edge */
MPI_Isend(gf[VOLUMEPLUSRAND + 2*LX*LY*LZ + 2*T*LY*LZ + (LX-1)*LZ],
1, gauge_yx_edge_gath, g_nb_x_up, 117,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND + 8*LY*LZ + 6*T*LZ],
1, gauge_yx_edge_cont, g_nb_x_dn, 117,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* t2y-edge */
MPI_Isend(gf[VOLUMEPLUSRAND],
1, gauge_ty_edge_gath, g_nb_y_dn, 118,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND + 8*LY*LZ + 8*T*LZ],
1, gauge_ty_edge_cont, g_nb_y_up, 118,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* t2y edge */
MPI_Isend(gf[VOLUMEPLUSRAND + (LY-1)*LZ],
1, gauge_ty_edge_gath, g_nb_y_up, 119,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND + 8*LY*LZ + 8*T*LZ + 2*LX*LZ],
1, gauge_ty_edge_cont, g_nb_y_dn, 119,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the left in y direction */
/* recieve the data from the neighbour on the right in y direction */
/* y2t edge */
MPI_Isend(gf[VOLUME + LZ],
1, gauge_ty_edge_gath, g_nb_y_dn, 120,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND + 8*LY*LZ + 8*T*LZ + 4*LX*LZ],
1, gauge_ty_edge_cont, g_nb_y_up, 120,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in y direction */
/* recieve the data from the neighbour on the left in y direction */
/* y2t-edge */
MPI_Isend(gf[VOLUME + (LY-2)*LZ],
1, gauge_ty_edge_gath, g_nb_y_up, 121,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND + RAND + 8*LY*LZ + 8*T*LZ + 6*LX*LZ],
1, gauge_ty_edge_cont, g_nb_y_dn, 121,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
}
/* end of if defined PARALLELXYT || PARALLELXYZT */
# endif
# if defined PARALLELXYZT
/* z-Rand */
/* send the data to the neighbour on the left in z direction */
/* recieve the data from the neighbour on the right in z direction */
MPI_Isend(gf[0],
1, gauge_z_slice_gath, g_nb_z_dn, 122,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + 2*LZ*(LX*LY + T*LY) + 2*LZ*T*LX],
1, gauge_z_slice_cont, g_nb_z_up, 122,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in z direction */
/* recieve the data from the neighbour on the left in z direction */
MPI_Isend(gf[LZ-1],
1, gauge_z_slice_gath, g_nb_z_up, 123,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + 2*LZ*(LX*LY + T*LY) + 2*T*LX*LZ + T*LX*LY],
1, gauge_z_slice_cont, g_nb_z_dn, 123,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
if(g_dbw2rand > 0) {
/* send the data to the neighbour on the left in z direction */
/* recieve the data from the neighbour on the right in z direction */
/* z2-Rand */
MPI_Isend(gf[1],
1, gauge_z_slice_gath, g_nb_z_dn, 124,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND+(2*LX+2*T)*LY*LZ + 2*T*LX*LZ],
1, gauge_z_slice_cont, g_nb_z_up, 124,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in z direction */
/* recieve the data from the neighbour on the left in z direction */
/* z2-Rand */
MPI_Isend(gf[LZ-2],
1, gauge_z_slice_gath, g_nb_z_up, 125,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUMEPLUSRAND+(2*LX+2*T)*LY*LZ + 2*T*LX*LZ + T*LX*LY],
1, gauge_z_slice_cont, g_nb_z_dn, 125,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
}
# endif
MPI_Waitall(cntr, request, status);
# if defined PARALLELXYZT
cntr=0;
/* edges */
/* send the data to the neighbour on the left in x direction */
/* recieve the data from the neighbour on the right in x direction */
/* is on the z-Rand -> zx-edge*/
MPI_Isend(gf[VOLUME + 2*LX*LY*LZ + 2*T*LY*LZ + 2*T*LX*LZ],
1, gauge_zx_edge_gath, g_nb_x_dn, 126,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + RAND + 4*LY*LZ + 4*T*LZ + 4*LX*LZ],
1, gauge_zx_edge_cont, g_nb_x_up, 126,
g_cart_grid, &request[cntr+1]);
cntr=cntr+2;
/* send the data to the neighbour on the right in x direction */
/* recieve the data from the neighbour on the left in x direction */
/* zx-edge */
MPI_Isend(gf[VOLUME + 2*LZ*(LX*LY + T*LY) + 2*T*LX*LZ + (LX-1)*LY],
1, gauge_zx_edge_gath, g_nb_x_up, 127,
g_cart_grid, &request[cntr]);
MPI_Irecv(gf[VOLUME + RAND + 4*LY*LZ + 4*T*LZ + 4*LX*LZ + 2*T*LY],
1, gauge_zx_edge_cont, g_nb_x_dn, 127,
g_cart_grid, &request[cntr+1]);