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<strong>MPI</strong>_Init(&argc,&argv);<br />
<strong>MPI</strong>_Comm_rank(<strong>MPI</strong>_COMM_WORLD,&taskid);<br />
<strong>MPI</strong>_Comm_size(<strong>MPI</strong>_COMM_WORLD,&numtasks);<br />
if (numtasks < 2 ) {<br />
printf("Need at least two <strong>MPI</strong> tasks. Quitting...\n");<br />
<strong>MPI</strong>_Abort(<strong>MPI</strong>_COMM_WORLD, rc);<br />
exit(1);<br />
}<br />
numworkers = numtasks-1;