[gmx-users] problem running gromacs v3.3 on SGE cluster?
lubos.vrbka at gmail.com
Wed Dec 14 18:19:48 CET 2005
Cameron Mura wrote:
> I'm wondering if anyone's experiences troubles running the latest
> gromacs v3.3 on linux clusters using the SGE queueing system? In a
> nutshell -- I built gromacs against MPI libs using the intel compiler as
> per usual procedure, and jobs which I submit for 2 or 4 procs (so "-pe
> mpi 4" in the SGE preamble) seem to run fine... However, it fails in a
> weird way for greater than 6 procs. Please see the emails below for more
> detailed info about all this. I'd greatly appreciate any advice if
> anyone's seen anything similar (or any links to running gromacs on sge,
> other sources of info...)
i had similar problems with gromacs (search archives for my recent post
on parallel gromacs) - up to 4 processors it is ok. if more processors
are used, then the mdrun processes are on the respective nodes, but do
not do anything, except for the last one.
i used PBSPro and MPICH. this thing is probably not queueing system
related. i was told that gromacs is knows not to work well with mpich...
lam was recommended. i built lam, rebuilt gromacs and it seems to be ok
(however, i didn't have time enough to run thorough tests)
_ at _"
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