Any news on Infiniband ?

Markus Fischer markus at markus-fischer.de
Wed Feb 26 15:04:39 EST 2003


What about CPU load ?

Is it PIO only or DMA ?

The OSU numbers dropped off right when hitting the L2 cache size ...

Markus

Anthony Skjellum wrote:

>Hi, we have 8.7us for zero byte messages in our MPI/Pro library.  I've
>heard a rumor that OSU is claiming 7.5 for their experimental MPI.
>
>We've seen bandwidths of over 820Mbyte/s with Mellanox gear on page
>aligned data, with SWGC chipset, but not at 128 byte size transfers.
>
>-Tony
>
>On Wed, 26 Feb 2003 pascal.deveze at bull.net wrote:
>
>  
>
>>I'd like to get recent information on that new interconnect technology.
>>
>>I know that information can be found on different sites :
>>
>>http://infiniband.sourceforge.net
>>http://www.mellanox.com/technology/whitepapers.html
>>
>>But, I cannot see recent news and forecast. I'd like to know if
>>optimisations of hardware and software are planned and what are the
>>goals in term of :
>>
>>- Bandwidth : My last information is that current maximum is about 800 MBytes/s
>>                    for message size of 128 KBytes
>>
>>- Latency (message of 0 0byte) : My last information is that current minimum
>>                 is about 20 micros.
>>
>>- Milestone for optimisations. I do not have any information.
>>
>>- Hardware / Software optimizations: I do not have any information
>>
>>
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>>    
>>
>
>Anthony Skjellum PhD, CTO       | MPI Software Technology, Inc.
>101 South Lafayette St, Ste. 33 | Starkville, MS 39759, USA
>Ph: +1-(662)320-4300 x15        | FAX: +1-(662)320-4301
>
>http://www.mpi-softtech.com     | tony at mpi-softtech.com
>
>Middleware that's hard at work for you and your enterprise.(SM)
>
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>
>  
>


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