Intel-MPI 3.0beta sends cmd=get_ranks2hosts

[Pete Wyckoff]

thomas.zeiser at rrze.uni-erlangen.de wrote on Mon, 13 Nov 2006 18:33 +0100:
> Thanks to Pete for pointing me to the correct part of the code and
> providing already a wrapper. As I did not dig too much into the
> details of mpiexec, there might be nicer way to implement but at
> least it worked in my initial tests (and should even take care of
> hostname transformations) ...

It looks great.  I wanted to make a couple of changes:  handle
MPI_Spawn case correctly, just in case Intel supports that and
someone ends up using it.  And avoid the quadratic algorithm for
generating the list.  I'm also caching the response for use by
other tasks.  Thanks for figuring out the odd syntax and getting
the spaces and commas and newlines correct---I left all that
alone (modulo bugs).

But my changes may have broken a perfectly working patch from you.
Would you be willing to test and debug this version?  It's SVN plus
a not-checked-in yet part that includes the get_ranks2hosts changes:

    http://www.osc.edu/~pw/mpiexec/mpiexec-0.81+20061120.tgz

If you give it the thumbs-up, I'll check it in, do a couple other
little things, then make a release soon.

		-- Pete