This error seems to be initiated from the PMIX regex framework. Not sure exactly which one is used, but a good starting point is in one of the files in 3rd-party/openpmix/src/mca/preg/. Look for the generate_node_regex function in the different components, one of them is raising the error.
George. On Thu, Jun 16, 2022 at 9:50 AM Patrick Begou via users < users@lists.open-mpi.org> wrote: > Hi Gilles and Jeff, > > @Gilles I will have a look at these files, thanks. > > @Jeff this is the error message (screen dump attached) and of course the > nodes names do not agree with the standard. > > Patrick > > > > Le 16/06/2022 à 14:30, Jeff Squyres (jsquyres) a écrit : > > What exactly is the error that is occurring? > > -- > Jeff squyresjsquy...@cisco.com > > ________________________________________ > From: users <users-boun...@lists.open-mpi.org> > <users-boun...@lists.open-mpi.org> on behalf of Patrick Begou via users > <users@lists.open-mpi.org> <users@lists.open-mpi.org> > Sent: Thursday, June 16, 2022 3:21 AM > To: Open MPI Users > Cc: Patrick Begou > Subject: [OMPI users] OpenMPI and names of the nodes in a cluster > > Hi all, > > we are facing a serious problem with OpenMPI (4.0.2) that we have > deployed on a cluster. We do not manage this large cluster and the names > of the nodes do not agree with Internet standards for protocols: they > contain a "_" (underscore) character. > > So OpenMPI complains about this and do not run. > > I've tried to use IP instead of host names in the host file without any > success. > > Is there a known workaround for this as requesting the administrators to > change the nodes names on this large cluster may be difficult. > > Thanks > > Patrick > > > > >
