Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Development mailing list

Subject: [OMPI devel] Direct routed module
From: Ralph Castain (rhc_at_[hidden])
Date: 2008-10-21 16:53:23

Hello all

I am working on adding a new radix tree routed module and am
simultaneously doing a little streamlining to the overall routed-
related code for scalability. One thing that would help cleanup
several areas of the code base would be to finally dump the "direct"
routed module.

As you may recall, this module has been continued for historical
purposes. It is not scalable since it requires that every process open
a direct connection to every other process in the job. This is what
pre-1.3 systems do. We originally left it alive for two reasons: (a)
we wanted to have a fallback position while we developed the more
scalable alternatives, and (b) the C/R code didn't support routed RML

The latter situation was resolved some months ago, and we have had
plenty of validation of our routed comm system. Thus, if there are no
objections by the end of the week, I will remove this module and
cleanup the code.

Please let me know if this is a concern.