Re: [OMPI users] MPI_Intercomm_create hangs

2012-01-28 Thread Jeff Squyres
Strange -- this almost implies a race condition somewhere. I don't see anything wrong with your application (other than it doesn't free the communicators, but that's not an error). Edgar -- the intercomm code is yours. Could you have a look? On Jan 23, 2012, at 11:03 AM, jody wrote: > Hi >

[OMPI users] MPI_Intercomm_create hangs

2012-01-23 Thread jody
Hi I've got a really strange problem: I've got an application which creates intercommunicators between a master and some workers. When i run it on our cluster with 11 processes it works, when i run it with 12 processes it hangs inside MPI_Intercomm_create(). This is the hostfile: squid_0.uzh.