array_add_slave.c

来自「C programs for adding two matrices paral」· C语言 代码 · 共 32 行

#include "pvm3.h"
#include <stdio.h>
#include<malloc.h>

main()
{
   int mytid;
   int i, sum, *a;
   int num_data, master;

   /* enroll in PVM */
   mytid = pvm_mytid();

   /* receive portion of array to be summed */
   pvm_recv(-1, -1);
   pvm_upkint(&num_data, 1, 1);
   a = (int *) malloc(num_data*sizeof(int));
   pvm_upkint(a, num_data, 1);

   sum = 0;
   for(i = 0; i < num_data; i++)
      sum += a[i];

   /* send computed sum back to master */
   master = pvm_parent();
   pvm_initsend(PvmDataRaw);
   pvm_pkint(&sum, 1, 1);
   pvm_send(master, 7);

   pvm_exit();
}