exit code 21

Well, this message was put there on purpose, as we made certain assumptions when we optimized the code. However in the searches we are running on Einstein@Home this issue should rather not occur.

Ususally this more likely points to a problem in the FPU on the computer, probably due to overheating. If, on the other hand, this would be a real problem in the code or the search parametes, it should happen on all results for a given workunit. Unfortunately there have been no other results returned from other machines of the WUs in question yet, so we'll have to wait a bit more to see where this comes from.

BM