[Beowulf] IB DDR: mvapich2 vs mvapich performance

[Eric Thibodeau]

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 
>>> (inaccuracies)? 
>>
>> I dunno, does it help your real applications?
>
> Significantly - of course, not :-) But our application is really 
> bounded by throughput !
Throughput or latency?
>
> Yours
> Mikhail
>>
>> -- greg
>>

Eric