5e9b556 Paralellize

Authored and Committed by zbyszek 4 years ago
    This brings down the wall-clock time down approximately proportionally
    to the number of CPUs (or possibly even more, e.g. here 16 min 44 went
    down to less then 1 min with 12 CPUs).
    I added a loop on failure. Unfortunately sometimes the server returns
    an invalid answer. That also happens when running serially, but it
    seems to happen more often in parallelized mode.
file modified
+9 -8