Re: [OMPI users] Segfault in ucp_dt_pack function from UCX library 1.8.0 and 1.11.2 for large sized communications using both OpenMPI 4.0.3 and 4.1.2

I would suggest trying OMPI v4.1.4 (or the v5 snapshot)  * https://www.open-mpi.org/software/ompi/v4.1/  * https://www.mail-archive.com/announce@lists.open-mpi.org//msg00152.html

Re: [OMPI users] PRRTE DVM: how to specify rankfile per prun invocation?

Thank you for the bug report. I filed a bug against PRRTE so this doesn't get lost that you can follow below:   https://github.com/openpmix/prrte/issues/720 Making rankfle a per-job instead of a per-DVM option might require some internal plumbing work. So I'm not sure how quickly this will be re

Re: [OMPI users] [ORTE] Connecting back to parent - Forcing tcp port

I posted a fix for the static ports issue (currently on the v4.1.x branch):   https://github.com/open-mpi/ompi/pull/8339 If you have time do you want to give it a try and confirm that it fixes your  issue? Thanks, Josh On Tue, Dec 22, 2020 at 2:44 AM Vincent mailto:boubl...@yahoo.co.uk> > wrote

Re: [OMPI users] [ORTE] Connecting back to parent - Forcing tcp port

Vincent, Thanks for the details on the bug. Indeed this is a case that seems to have been a problem for a little while now when you use static ports with ORTE (-mca oob_tcp_static_ipv4_ports option). It must have crept in when we refactored the internal regular expression mechanism for the v4 b