PC GAMESS/Firefly-related discussion club

Learn how to ask questions correctly

Alex Granovsky
gran@classic.chem.msu.su

>>as far as I remember that really strange cluster has only 4 GB per eight-core box, and there is no swap partition at all; and you are trying to allocate 16 GB...

>Thanks for the tip.
>For those of you who experience the same problem with SKIF-MGU - setting MWORDS=16 completely resolves the problem.

One of the problems with this cluster is that it is configured
so that Firefly gets suspended somewhere inside Linux kernel
while trying to allocate memory the OS cannot provide. It would
be way better if OS simply kills it (and thus, this could be
detected by proper MPI software or queue system). The same is
true for local files, which are on the RAM disk - Firefly may
simply get suspended trying to write to the file...

On the other hand, their network-based storage solution
is clearly not efficient enough to be used by any disk-intensive task

regards,
Alex Granovsky

[ This message was edited on Tue Mar 10 '09 at 4:26pm by the author ]