Can I change the eager limit in mpiexec

[Pete Wyckoff]

yingchen at Stanford.EDU said:
> I am a graduate student at Stanford. We installed mpiexec in our compaq
> alpha linux cluster. I am testing it with some f90 code. Do you know if
> there is any method I can increase the eager limit for the synchronization
> calls. For IBM cluster with poe, it has a option called eager_limit. I
> want to increase it to 64k if it is possible.

Sorry I'm not sure what you're talking about.  Are you thinking of the
message size limit which decides between eager and rendez-vous sends
used by most MPI implementations?

If you can figure out an environment variable, just set it in the shell
before calling mpiexec and it will be propagated to the applications and
hence to the MPI library.

		-- Pete