From: "J.Henrichs" Newsgroups: comp.parallel.mpi Subject: Re: Problems porting MPI-programs from Linux-cluster to a Cray Origin 2000. Please help! Date: Fri, 04 Jun 1999 15:07:07 +0200 Organization: Forschungszentrum Juelich Message-Id: <3757CF7B.F5EE8B3F@zam446.zam.kfa-juelich.de> References: <37564D39.DD11171A@sofus.hiof.no> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Xref: ukc comp.parallel.mpi:5171 Hi Ole-Martin Mørk wrote: > > I have this problem: > I have a little MPI program written in C which runs well on 16-nodes > Linux RH cluster, but when I try to run it on a Cray Origin 2000 with > IRIX64 6.5 I get this problem: > > MPI: MPI_COMM_WORLD rank 0 has terminated without calling MPI_Finalize() > MPI: aborting job > > I am running MPI_Finalize() on all processes and even testing with > MPI_Finalized(int *bla) if it is actually finalized before exiting. I do not have experience on Origins, but maybe some thoughts can help you: 1) I think that the problem is not the call to MPI_Finalize, but that the process with rank 0 terminates without calling it - possibly at a very different place in your code. Is there a core dump? Or du you get any other error message/exception? Do you use an exit somewhere (without doing a finalize)? Check, if all processes really enter MPI_Finalize. 2) MPI_Finalized is an MPI-2 call - so I am quite surprised that you can use it (there is only one MPI-2 implementation available (iirc) - for Fujitsu). Maybe this is a problem - you might be calling an internal function. 3) Try inserting a barrier before the finalize call (there should be a barrier within the finalize, but maybe there is a bug??), and check, if all processes arrive there. Good luck Joerg