Typically it is something like 'qsub -W group_list=groupB <other options> myjob.sh'. Ultimately myjob.sh runs with gid groupB on some host in the cluster. When that script reaches the mpirun command, then mpirun and the processes started on the same host all run with gid groupB, but any of the spawned processes that start on other hosts run with the user's default group, say groupA.
It did occur to me that the launching technique might have some ability to influence this behavior as you indicated. I don't know what launcher is being used in our cases, I guess it's rsh/ssh. -----Original Message----- From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On Behalf Of Reuti Sent: Wednesday, September 07, 2011 12:24 PM To: Open MPI Users Subject: Re: [OMPI users] Can you set the gid of the processes created by mpirun? Hi, you mean you change the group id of the user before you submit the job? In GridEngine you can specify whether the actual group id should be used for the job, or the default login id. Having a tight integration, also the slave processes will run with the same group id. -- Reuti > Ed > > From: Ralph Castain [mailto:r...@open-mpi.org] > Sent: Wednesday, September 07, 2011 8:53 AM > To: Open MPI Users > Subject: Re: [OMPI users] Can you set the gid of the processes created by mpirun? > > On Sep 7, 2011, at 7:38 AM, Blosch, Edwin L wrote: > > > The mpirun command is invoked when the user's group is 'set group' to group 650. When the rank 0 process creates files, they have group ownership 650. But the user's login group is group 1040. The child processes that get started on other nodes run with group 1040, and the files they create have group ownership 1040. > > Is there a way to tell mpirun to start the child processes with the same uid and gid as the rank 0 process? > > I'm afraid not - never came up before. Could be done, but probably not right away. What version are you using? > > > > Thanks > _______________________________________________ > 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
