[Beowulf] RE: Compare and contrast MPI implementations

[Robert G. Brown]

On Fri, 16 Dec 2005, Leif Nixon wrote:

> "Douglas Eadline" <deadline at clustermonkey.net> writes:
>
>> "David Mathog" <mathog at mendel.bio.caltech.edu> writes:
>>> Sort of the same problem though.  lamboot (from lam-mpi) assumes
>>> that hboot is in the path.  There's no time before it invokes
>>> hboot to run "modules".  If there were a preceding stage in
>>> this instance just using an export statement with PATH would
>>> have done the trick.
>>
>> When I used modules in the past, there were environments set up for
>> compilers and MPIs.
>>
>> For instance if I wanted to run LAM/MPI compiled for the Intel Compiler,
>>
>> module load intel
>> module load lam/intel
>>
>> now I have a Intel compiler and LAM environment (compiled for intel).
>
> But it doesn't help for David's problem; that environment variables
> aren't passed across rsh.

Making it a GREAT time to point out that environment variables CAN be
passed across ssh.  See man ssh, ~/.ssh/environment.

    rgb

-- 
Robert G. Brown	                       http://www.phy.duke.edu/~rgb/
Duke University Dept. of Physics, Box 90305
Durham, N.C. 27708-0305
Phone: 1-919-660-2567  Fax: 919-660-2525     email:rgb at phy.duke.edu