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time_Hopping_Matrix.c
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/
time_Hopping_Matrix.c
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/*******************************************************************************
* $Id$
*
* File time_Hopping_Matrix.c
*
* Timing of the program Hopping_Matrix
*
* Author: Carsten Urbach
* urbach@physik.fu-berlin.de
*
*******************************************************************************/
#define MAIN_PROGRAM
#ifdef XLC
#define CACHE_SIZE 1500000
#else
#define CACHE_SIZE 256000
#endif
#ifdef HAVE_CONFIG_H
# include<config.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <time.h>
#include "global.h"
#include "su3.h"
#include "ranlxd.h"
#include "geometry_eo.h"
#include "start.h"
#include "Hopping_Matrix.h"
#include "linalg_eo.h"
#include "boundary.h"
#if defined MPI
# include "xchange.h"
#include "init_gauge_field.h"
#include "init_geometry_indices.h"
#endif
int main(int argc,char *argv[]){
int i,k,kmax,n,count;
float t1,t2,dt;
double m0;
int a,b;
#ifdef _GAUGE_COPY
int ix=0, kb=0;
#endif
#if defined MPI
MPI_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &g_nproc);
MPI_Comm_rank(MPI_COMM_WORLD, &g_proc_id);
if(g_proc_id == 0) {
printf("g_proc_id=%d g_nproc=%d \n",
g_proc_id,g_nproc);
}
#else
g_proc_id = 0;
g_nproc = 1;
#endif
if(g_proc_id == 0) {
printf("\n");
printf("Timing of Hopping_Matrix (random spinor and gauge fields)\n");
printf("------------------------------------------------\n");
printf("\n");
printf("The lattice size is %d x %d^3\n\n",T*g_nproc, L);
}
kmax=((int)(CACHE_SIZE))/(96*(int)(VOLUME));
if (kmax==0){
kmax=1;
}
if(kmax>10){
kmax=10;
}
n=30000000/(int)(VOLUME/2);
if (n<2){
n=2;
}
g_kappa = 0.125;
g_mu = 0.1;
rlxd_init(1,123456);
geometry();
boundary();
random_gauge_field();
#if defined MPI
xchange_gauge();
#endif
#ifdef _GAUGE_COPY
/* set the backward gauge field */
for(ix = 0; ix < VOLUME;ix++) {
kb=g_idn[ix][0];
_su3_assign(g_gauge_field_back[ix][0],g_gauge_field[kb][0]);
kb=g_idn[ix][1];
_su3_assign(g_gauge_field_back[ix][1],g_gauge_field[kb][1]);
kb=g_idn[ix][2];
_su3_assign(g_gauge_field_back[ix][2],g_gauge_field[kb][2]);
kb=g_idn[ix][3];
_su3_assign(g_gauge_field_back[ix][3],g_gauge_field[kb][3]);
}
#endif
for (k=0;k<2*kmax;k++){
random_spinor_field(k);
}
k=0;
t1=(float)clock();
for (count=0;count<n;count++){
Hopping_Matrix(EO, k+kmax, k);
k++;
if (k==kmax){
k=0;
}
}
t2=(float)clock();
dt=(t2-t1)/((float)(CLOCKS_PER_SEC));
dt=1.0e6f*dt/((float)(n*(VOLUME/2)));
printf("Time per lattice point: %4.3f micro sec",dt);
printf(" (%d Mflops [%d bit arithmetic])\n",
(int)(1392.0f/dt),(int)sizeof(spinor)/3);
printf("\n");
a = (int)(1392.0f/dt);
MPI_Reduce(&a, &b, 1, MPI_INT, MPI_SUM, 0, MPI_COMM_WORLD);
if(g_proc_id == 0) {
printf("Sum: %d, Average: %d Mflops\n", b, b/g_nproc);
printf("Number of applications of Hopping_Matrix was %d!\n", n);
}
#if defined MPI
MPI_Finalize();
#endif
return(0);
}