Re: [OMPI users] Gamess with openmpi

2009-03-05 Thread Jeff Squyres
Is gamess calling fork(), perchance? Perhaps through a system() or popen() call? On Mar 5, 2009, at 3:50 AM, Thomas Exner wrote: Dear Jeff: Thank you very much for your reply. Unfortunately, the overloading is not the problem. The phenomenon also appears if we use only two processes on the

Re: [OMPI users] Gamess with openmpi

2009-03-05 Thread Thomas Exner
Dear Jeff: Thank you very much for your reply. Unfortunately, the overloading is not the problem. The phenomenon also appears if we use only two processes on the 8core machines. When I run the jobs over two nodes, one is doing nothing anymore after a couple of minutes. The strange thing is that t

Re: [OMPI users] Gamess with openmpi

2009-03-04 Thread Jeff Squyres
Sorry for the delay in replying -- INBOX deluge makes me miss emails on the users list sometimes. I'm unfortunately not familiar with gamess -- have you checked with their support lists or documentation? Note that Open MPI's IB progression engine will spin hard to make progress for messag

[OMPI users] Gamess with openmpi

2009-02-24 Thread Thomas Exner
Dear all: Because I am new to this list, I would like to introduce myself as Thomas Exner and please excuse silly questions, because I am only a chemist. And now my problem, with which I am fiddling around for almost a week: I try to use gamess with openmpi on infiniband. There is a good descript