[Beowulf] IB DDR: mvapich2 vs mvapich performance
kus at free.net
Thu Apr 24 05:43:17 PDT 2008
In message from Eric Thibodeau <kyron at neuralbs.com> (Wed, 23 Apr 2008
>Mikhail Kuzminsky wrote:
>> In message from Greg Lindahl <lindahl at pbm.com> (Wed, 23 Apr 2008
>> 00:36:44 -0700):
>>> On Wed, Apr 23, 2008 at 07:04:51AM +0400, Mikhail Kuzminsky wrote:
>>>> Is this throughput difference the result of MPI-2 vs MPI
>>>> implementation or should I beleive that this difference (about 4%
>>>> for my mvapich vs mvapich2 at SC'07 ) is not significant - in the
>>>> sense that it is simple because of some measurement errors
>>> I dunno, does it help your real applications?
>> Significantly - of course, not :-) But our application is really
>> bounded by throughput !
>Throughput or latency?
Throughput ! osu_bw was interesting just for bandwidth ;-)
>>> -- greg
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