I don't know what your program is doing but I kind of guess what the problem is. If you use MPI 2 dynamics to spawn or connect two MPI_COMM_WORLD you have to disconnect them before calling MPI_Finalize. The reason is that an MPI_Finalize do the opposite of an MPI_Init, so it is MPI_COMM_WORLD based. Make sure your different world are disconnected before doing the MPI_Finalize should solve the problem.

  george.

On Jan 23, 2009, at 06:00 , Bernard Secher - SFME/LGLS wrote:

No i didn't run this program whith Open-MPI 1.2.X because one said to me there were many changes between 1.2.X version and 1.3 version about MPI_publish_name, MPI_Lookup_name (new ompi-server, ...), and it was better to use 1.3 version.

Yes i am sure all processes reach MPI_Finalize() function because i write message just before (it is the END_OF macro in my program), and i am sure all processes are locked in MPI_Finalize() function beacause i write message just after (it is the MESSAGE macro).

May be all MPI_Sends are not matched by corresponding MPI_Recvs,... It can be a possibility.

Thanks
Bernard



jody a écrit :
Hi Bernard

The structure looks as far as i can see.
Did it run OK on Open-MPI 1.2.X?
So are you sure all processes reach the MPI_Finalize command?
Usually MPI_Finalize only completes when all processes reach it.
I think you should also make sure that all MPI_Sends are matched by
corresponding MPI_Recvs.

Jody

On Fri, Jan 23, 2009 at 11:08 AM, Bernard Secher - SFME/LGLS
<bernard.sec...@cea.fr> wrote:

Thanks Jody for your answer.

I launch 2 instances of my program on 2 processes each instance, on the same
machine.
I use MPI_Publish_name, MPI_Lookup_name to create a global communicator on
the 4 processes.
Then the 4 processes exchange data.

The main program is a CORBA server. I send you this program.

Bernard

jody a écrit :

For instance:
- how many processes on how many machines,
- what kind of computation
- perhaps minimal code which reproduces this failing
- configuration settings, etc.
See: http://www.open-mpi.org/community/help/

Without any information except for "it doesn't work",
nobody can give you any help whatsoever.

Jody

On Fri, Jan 23, 2009 at 9:33 AM, Bernard Secher - SFME/LGLS
<bernard.sec...@cea.fr> wrote:


Hello Jeff,

I don't understand what you mean by "A _detailed_ description of what is
failing".
The problem is a dead lock in MPI_Finalize() function. All processes are
blocked in this MPI_Finalize() function.

Bernard

Jeff Squyres a écrit :


Per this note on the "getting help" page, we still need the following:

"A _detailed_ description of what is failing. The more details that you provide, the better. E-mails saying "My application doesn't work!" will inevitably be answered with requests for more information about exactly what doesn't work; so please include as much information detailed in your initial
e-mail as possible."

Additionally:

"The best way to get help is to provide a "recipie" for reproducing the
problem."

Thanks!


On Jan 22, 2009, at 8:53 AM, Bernard Secher - SFME/LGLS wrote:



Hello Tim,

I send you the information in join files.

Bernard

Tim Mattox a écrit :


Can you send all the information listed here:

 http://www.open-mpi.org/community/help/

On Wed, Jan 21, 2009 at 8:58 AM, Bernard Secher - SFME/LGLS
<bernard.sec...@cea.fr> wrote:



Hello,

I have a case wher i have a dead lock in MPI_Finalize() function with
openMPI v1.3.

Can some body help me please?

Bernard



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