On Jul 6, 2008, at 5:54 AM, Endee wrote:
> My Question: I am not clear about the role ' -ssi rpi sysv '. By
> reading documentation about ssi-overview, my understanding is that
> if I am not using -ssi rpi with either sysv or usysv, LAM and MPI
> routines will work as usual. Difference is that LAM may export
> multiple instances of a system interface and '-ssi rpi sysv' will be
> making the decision as which one to choose at run time. So, their
> exclusion of '-ssi rpi sysv' may make the program to go unstable.
> Is my understanding correct?
The use of "-ssi rpi sysv" tells LAM to pick a specific RPI module
rather than letting LAM pick its own.
For some reason, the sysv RPI is failing to initialize on one of your
nodes, so you can't use it for the overall job (LAM must use the same
RPI in every process).
A random question: have you tried Open MPI? LAM is in maintenance
mode these days; all of our effort is focused on Open MPI (www.open-mpi.org
).
--
Jeff Squyres
Cisco Systems
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