Thanks again!
Ray

On 4/6/2015 8:58 PM, Ralph Castain wrote:
Yep - it will automatically pick it up. The file should be in the <prefix>/etc 
directory.

On Apr 6, 2015, at 5:49 PM, Ray Sheppard <rshep...@iu.edu> wrote:

Thanks Ralph,
  The FAQ had me putting in prefixes to that line and I just never figured it 
out.  I have just dumbly added these things to my mpirun line.  I have one 
other question. When I write into the system conf file, will the mpirun know to 
look there (which seems what the file says) or should I explicitly add the 
.../etc directory to a variable like CPATH?  Thanks again,
Ray

On 4/6/2015 8:14 PM, Ralph Castain wrote:
btl_tcp_if_exclude=eth2

should work

On Apr 6, 2015, at 5:09 PM, Ray Sheppard <rshep...@iu.edu> wrote:

Hello list,
  I have been given permission to impose my usual defaults on the system.  I have been 
reading documentation for the openmpi-mca-params.conf file. "ompi_info --param all 
all" did not help.  All the FAQ's seem to do was confuse me. I can not seem to 
understand how to instantiate a simple switch like:

-mca btl_tcp_if_exclude eth2

I have tried various ways but always seem to get:
keyval parser: error 2 reading file 
/N/u/rsheppar/Karst/.openmpi/mca-params.conf at line 1:

I would really appreciate a simple example of a proper entry. Thanks.
                      Ray

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