BProc Program Example 1

• /* Skip node to node */

• #include <stdio.h>

• #include <stdlib.h>

• #include <unistd.h>

• #include <assert.h>

• #include <sys/bproc.h>

• #define LEN 256

• int main(int argc,char* argv[])

• {

• int i;

• char *ch,host[LEN];

• /* Where do we start? */

• assert(gethostname(host,LEN)==0);

• printf("Started on %s id %d\n",host,bproc_currnode());

• /* Now cycle through the nodes */

• for (i=1;i<argc;i++)

• {

• int node = strtol(argv[i],&ch,0);

• if (*ch)

• printf("Invalid node number %s\n",argv[i]);

• else if (node==bproc_currnode() || bproc_move(node))

• fprintf(stderr,"Move to %d failed\n",node);

• else

• {

• assert(gethostname(host,LEN)==0);

• printf("Moved to %s id %d\n",host,bproc_currnode());

• }

• }

• return 0;

• }

Notes: