[mpich-discuss] Running an mpi program that needs to access /dev/mem

[Pavan Balaji]

On 06/16/2013 08:19 AM, Lee, Eibhlin wrote:
> Actually, I can run mpiexec id AS ROOT. It is only when I try to run
> the program that contains /dev/mem in root that there is an issue.
> Sorry that I wasn't so clear in my earlier post.

Are you sure?  Here's what you wrote in a previous email, which 
indicates that your processes are not running as root:

==================================================
sorry when I do run mpiexec id the output is
uid=1000(pi) gid=1000(pi) 
groups=1000(pi),4(adm),20(dialout),24(cdrom),27(sudo),29(audio),44(video),46(plugdev),60(games),100(users),105(netdev),999(input)

regardless of whether I'm in root or my usual user. root at raspi or 
pi at raspi. Is this output what you would expect?
==================================================

You further added that you are running this with smpd.

  -- Pavan

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji