#! /opt/bin/dash
#
PATH="/bin:/usr/bin"; export PATH

(cat node1.out; echo ",") | paste -d, - nodes1-4.out | awk -F, ' BEGIN {
 printf("%18s%17s\n", "secs", "speedup");
 printf("   n    1 node   4 nodes     ratio\n"); } {
 printf("%4i %9.2f %9.2f %9.2f\n", $3, $2, $4, $2/$4);
}' > node1,1-4-table.out