process blocking on Altix

[dkokron]

I have an MPI application that launches another executable on rank zero via a system call. The problem is that the other MPI ranks sit at a barrier consuming cycles that I want my other executable to use. In my IRIX64 days, I used blockproc/unblockproc to put the 'extra' MPI ranks to sleep and revive them when needed. I cannot find anything similar on the Altix platform.

Do you know of any routines on the Altix that mimic the functionality of [un]blockproc?

Dan

[TimP]

This question might be answered quicker on the HPC and cluster tools forum, particularly if you were to consider running Intel MPI, with which we have been able to solve some of our Altix problems.

[dkokron]

Okay, I'll ask the HPC forum.
Dan