[OMPI users] MPI_Finalize runtime error

Hi after I finish execution, and all results are reported, and both processes are about to call MPI_Finalize, I get this runtime error: any help is appreciated, thanks Manal Signal:11 info.si_errno:0(Success) si_code:1(SEGV_MAPERR) Failing at addr:0xa [0] func:/usr/local/bin/openmpi/lib/libopa

[OMPI users] Why should the attached code wait on MPI_Bcast

Please see attached source file. According to my understanding of MPI_Comm_spawn(), the intercommunicator returned is the same as it is returned by MPI_Comm_get_parent() in the spawned processes. I am assuming that there is one intercommunicator which contains all the (spawned) child processes as

Re: [OMPI users] TM fixes on trunk

That's excellent, thanks. --andy > -Original Message- > From: users-boun...@open-mpi.org > [mailto:users-boun...@open-mpi.org] On Behalf Of Jeff Squyres > (jsquyres) > Sent: Monday, July 17, 2006 2:08 PM > To: Open MPI Users > Subject: Re: [OMPI users] TM fixes on trunk > > For lack o

Re: [OMPI users] TM fixes on trunk

For lack of a longer explanation, let's call it "internal accounting errors" :-). In an attempt to speed up the TM launcher, we made some changes in Open MPI 1.1 which ended up using the TM API the wrong way. So it was clearly a bug. It *might* work in 1.1, but I wouldn't recommend it (i.e., it's

Re: [OMPI users] TM fixes on trunk

Jeff, What were the details of the problem/fixes? Is it worth us moving to the trunk or using what we have until 1.1.1 arrives? Thanks. --andy > -Original Message- > From: users-boun...@open-mpi.org > [mailto:users-boun...@open-mpi.org] On Behalf Of Jeff Squyres > (jsquyres) > Sent

[OMPI users] TM fixes on trunk

All -- Martin Schaffoner reported some TM problems to this list a little while ago. It took a long time for he and I to synch up, but we finally identified and fixed the problem. This only affects Open MPI 1.1 installs -- it is not an issue for 1.0.x installs. The fix has been included in both

[OMPI users] What Really Happens During OpenMPI MPI_INIT?

Hi , Can anyone please enlighten us about what really happens in MPI_init() in openMPI? More specifically i am interested in knowing 1.Functions that needs to accomplished during MPI_init() 2.What has already been implemented in openMPI MPI_Init 2. The routines called/invoked that perform the