This note describes the actual steps taken by the author in attempting to get insight into the effective solution of a hard integer program. A reduction in CPU time of around 97% was eventually achieved, but the major purpose of the note is to reinforce the moral that a subtlety of approach is still necessary to solve economically even small discrete problems.
/lp/association-for-computing-machinery/reducing-computational-effort-in-solving-a-hard-integer-program-n7rJJzfNSS