Problems with diferents Nios II configurations

Altera_Forum · ‎08-17-2005

I'm doing a simple benchmar that reserve memory for a two matrix and multiply it. Every iteration reserve more memory. But my problem is that in standard nios II configuration it runs perfect, but when I use it in full featured it doesn't run. Can someone explain me why it succes or what I can do for resolve it??

I put the code here:

# include <stdlib.h># include <stdio.h># include <time.h>

void main(int argc, char *argv[]) {

int *a,*b,*c;

int i, j, k, x;

time_t start_time, end_time;

int time_final=0;

int crow=0;

int ROWS = 2;

int ITER = 1000;

printf("\nStarting main program.\n\n");

printf("\n\nMultiplying two matrices of size %dX%d %d times.\n\n", ROWS, ROWS, ITER);

start_time = time(NULL);

for(crow=2;crow<=14;crow++){

ROWS = crow;

a = malloc(ROWS*ROWS);

b = malloc(ROWS*ROWS);

for(x=0; x<ITER; x++) {

for(i=0;i<ROWS*ROWS;i++) {

a = i+1;

b = ROWS*ROWS-i-1;

}

i=0;

for (i=0; i < ROWS; i++) {

for (j = 0; j < ROWS; j++) {

for (k=0; k < ROWS; k++) a[i+j] += a[i+k]*b[k+j];

b[i+j] += a[i+k]*b[k+j];

}

end_time = time(NULL);

time_final = difftime(end_time,start_time);

printf ("\nNumero de Columnes: %d ,Temps: %d\n",ROWS,time_final);

free(a);

free(http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/cool.gif ;

}

exit(0);

}

thanks to all,

Guillem

Altera_Forum · ‎08-19-2005

We've have unresolved issues with the data cache lines in full-featured designs... take a look at the readme.txt file that came with the distribution, it's the first point in the "Important Notes" section.

I'm not sure if it's related, but it's worth a try I guess.