mpiexec and Fedora 6 problem

[Pete Wyckoff]

schreian at bc.edu wrote on Wed, 31 Jan 2007 14:58 -0500:
> I am having trouble with mpiexec v 0.82 on a Fedora 6 system, with  
> torque 2.1.6-1 from the Fedora repository.
> 
> The same build is working fine for me with Fedora 4.
[..]
> /path/to/mpiexec ./mp
> mpiexec: Error: get_hosts: pbs_connect: Unauthorized Request .

Looking at the torque source for pbs_connect:

        /* Have pbs_iff authenticate connection */

        if (PBSD_authenticate(connection[out].ch_socket) != 0) {
                close(connection[out].ch_socket);
    
                connection[out].ch_inuse = 0; 

                pbs_errno = PBSE_PERM;


It appears that pbs_iff couldn't do its thing.  You could play
around with "qstat" et al. on a compute node and probably also get
the same error.  Check the permissions of pbs_iff, or nosuid on an
NSF mount.  Probably the torque list archives have similar
complaints about "Unauthorized Request" that might help.

If you find a solution, let me know and I'll stick it in the README.

		-- Pete