Re: [OMPI users] mpi_comm_spawn have problems with group communicators

> "Ralph" == Ralph Castain writes: Ralph> On Oct 4, 2010, at 10:36 AM, Milan Hodoscek wrote: >>> "Ralph" == Ralph Castain writes: >> Ralph> I'm not sure why the group communicator would make a Ralph> difference - the code area

Re: [OMPI users] mpi_comm_spawn have problems with group communicators

On Oct 4, 2010, at 10:36 AM, Milan Hodoscek wrote: >> "Ralph" == Ralph Castain writes: > >Ralph> I'm not sure why the group communicator would make a >Ralph> difference - the code area in question knows nothing about >Ralph> the mpi aspects of the job. It

Re: [OMPI users] mpi_comm_spawn have problems with group communicators

> "Ralph" == Ralph Castain writes: Ralph> I'm not sure why the group communicator would make a Ralph> difference - the code area in question knows nothing about Ralph> the mpi aspects of the job. It looks like you are hitting a Ralph> race condition that

Re: [OMPI users] mpi_comm_spawn have problems with group communicators

I'm not sure why the group communicator would make a difference - the code area in question knows nothing about the mpi aspects of the job. It looks like you are hitting a race condition that causes a particular internal recv to not exist when we subsequently try to cancel it, which generates

[OMPI users] mpi_comm_spawn have problems with group communicators

Hi, I am a long time happy user of mpi_comm_spawn() routine. But so far I used it only with the MPI_COMM_WORLD communicator. Now I want to execute more mpi_comm_spawn() routines, by creating and using group communicators. However this seems to have some problems. I can get it to run about 50%