> Try -mca orte_launch_agent "sg N orted", where N is the desired group ID.
There is a catch in the way the orted process is started. I get messages like this: bash: sg /home/install/openmpi/bin/(null) --daemonize -mca ess env -mca orte_ess_jobid 3913285632 -mca orte_ess_vpid 9 -mca orte_ess_num_procs 10 --hnp-uri 3913285632.0: No such file or directory I think it is taking "sg" as the orted command and ignoring the groupid and the orted arguments to sg. Probably some detail of how the orted process is being created. > > Ed > > > NAME > sg - execute command as different group ID > > SYNOPSIS > sg [-] [group [-c ] command] > > DESCRIPTION > The sg command works similar to newgrp but accepts a command. The > command will be executed with the /bin/sh shell. With most shells you > may run sg from, you need to enclose multi-word commands in quotes. > Another difference between newgrp and sg is that some shells treat > newgrp specially, replacing themselves with a new instance of a shell > that newgrp creates. This doesn't happen with sg, so upon exit from a > sg command you are returned to your previous group ID. > > > > > -----Original Message----- > From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On > Behalf Of Ralph Castain > Sent: Wednesday, September 14, 2011 11:33 AM > To: Open MPI Users > Subject: Re: [OMPI users] EXTERNAL: Re: Can you set the gid of the processes > created by mpirun? > > > On Sep 14, 2011, at 9:39 AM, Blosch, Edwin L wrote: > >> Thanks, Ralph, >> >> I get the failure messages, unfortunately: >> >> setgid FAILED >> setgid FAILED >> setgid FAILED >> >> I actually had attempted to call setgid from within the application >> previously, which looks similar to what you've done, but it failed. That was >> when I initiated the post to the mailing list. My conclusion, a guess >> really, was that Linux would not let me setgid from within my program >> because I was not root. > > I was afraid of that - the documentation seemed to indicate that would be the > case, but I figured it was worth a quick try. Sorry I can't be of help. > > >> >> >> -----Original Message----- >> From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On >> Behalf Of Ralph Castain >> Sent: Wednesday, September 14, 2011 8:15 AM >> To: Open MPI Users >> Subject: Re: [OMPI users] EXTERNAL: Re: Can you set the gid of the processes >> created by mpirun? >> >> The attached should set the gid of the remote daemons (and their children) >> to the gid of mpirun. No cmd line option or anything is required - it will >> just always do it. >> >> Would you mind giving it a try? >> >> Please let me know if/how it works. >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users _______________________________________________ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users
