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.
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.