[ofa-general] Re: [PATCH] opensm: preserve base lid routes

[Yiftah Shahar]

Hi Al,

Thanks for doing those tests, I think they clearly demonstrate the
importance of doing the right routing when running with LMC>0, actually
it is important to do correct routing anytime ;-)

We can also see that Open MPI manage to get significant performance
improvement (faster by up to 38%) when utilizing 4 routs (with PL patch)
and mange to maintain scalability of this feature for almost 1000 ranks.

We are thinking on additional ways to improve Open MPI utilization of
multi routs so we can even get better performance in the future.

Yiftah

> -----Original Message-----
> From: general-bounces at lists.openfabrics.org [mailto:general-
> bounces at lists.openfabrics.org] On Behalf Of Hal Rosenstock
> Sent: Tuesday, June 17, 2008 19:43
> To: chu11 at llnl.gov
> Cc: Yevgeny Kliteynik; moody20 at llnl.gov; OpenIB
> Subject: [ofa-general] Re: [PATCH] opensm: preserve base lid routes
> 
> On Tue, 2008-06-17 at 09:25 -0700, Al Chu wrote:
> > Sorry, the numbers for the mvapich/openmpi numbers are in units of
> > time.
> 
> > I think microseconds.  So lower is better.
> 
> That's what wasn't clear.
> 
> -- Hal
> 
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