Re: [OMPI users] File seeking with shared filepointer issues

2011-06-25 Thread Jeff Squyres
I'm not super-familiar with the IO portions of MPI, but I think that you might be running afoul of the definition of "collective." "Collective," in MPI terms, does *not* mean "synchronize." It just means that all functions must invoke it, potentially with the same (or similar) parameters. Hen

Re: [OMPI users] Problems on large clusters

2011-06-25 Thread Jeff Squyres
Did this issue get resolved? You might also want to look at our FAQ category for large clusters: http://www.open-mpi.org/faq/?category=large-clusters On Jun 22, 2011, at 9:43 AM, Thorsten Schuett wrote: > Thanks for the tip. I can't tell yet whether it helped or not. However, with > you

Re: [OMPI users] openmpi-1.4.3 and pgi-11.6 segfault

2011-06-25 Thread Jeff Squyres
Ouch. :-( Have you talked to PGI? If a compiler segv's when compiling OMPI, it's almost always their fault, not ours... (sorry to be a weasel here, but there's little we can do if the compiler itself segv's) On Jun 21, 2011, at 12:58 PM, Brock Palen wrote: > Has anyone else had issues buil

Re: [OMPI users] OpenMPI roadmap

2011-06-25 Thread Jeff Squyres
Greetings Alan. Sorry for the delay in replying. We don't have a definite timeline for when 1.5 will transition to become 1.6 (i.e., the "super stable" equivalent of the 1.5 series). We are looking at it more in terms of features -- when we have the desired set of features (which, as a natura

Re: [OMPI users] OMPI on EC2

2011-06-25 Thread Jeff Squyres
w00t! Many thanks, Barnet -- this is great! On Jun 14, 2011, at 10:50 AM, Barnet Wagman wrote: > I've put together a simple system for running OMPI on EC2 (Amazon's cloud > computing service). If you're interested, see > > http://norbl.com/ppe-ompi.html > > > Barnet Wagman > > > > _