[mvapich-discuss] Sandy Bridge - FDR settings?

[sreeram potluri]

Dr. Bende,

The configure option corresponding to the interface Dr.Panda has suggested
is

--with-device=ch3:mrail

More information about configuring this interface is available in this
section of our userguide

http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.9a2.html#x1-100004.4

To take advantage of both ports on the FDR HCA, please use the runtime
parameter MV2_NUM_PORTS=2. More information on multi-rail configurations is
available in this section of our userguide.

http://mvapich.cse.ohio-state.edu/support/user_guide_mvapich2-1.9a2.html#x1-610006.12

Sreeram Potluri

On Sun, Jan 13, 2013 at 3:35 PM, Dhabaleswar Panda <panda at cse.ohio-state.edu
> wrote:

> We recommend the use of ch3:multirail interface. This interface supports
> maximum features of IB for performance and scalability. It also provides
> many tunings for SandyBridge and FDR.
>
> Thanks,
>
> DK
>
>
> On Sun, 13 Jan 2013, Dr. Attila Bende wrote:
>
>  Dear MVAPICH Developers
>>
>> We have built an IBM cluster with Sandy Bridge Intel Processors and FDR
>> infiniband (with dual port) network based on Mellanox network adapters.
>> I would like to ask, which settings is the optimal one for this kind of
>> system when I would like to compile the mvapich2 package from source code
>> For example: --with-device=ch3:nemessis:ib looks correct?
>>
>> Thanks in advance
>> Attila
>>
>> --
>> Dr. Bende Attila (PhD)
>> Senior Researcher I
>>
>> *****************************************************
>> Molecular and Biomolecular Physics Department
>> National Institute for R&D of Isotopic and Molecular Technologies
>> Str. Donath nr.65-103, C.P.700
>> Cluj-Napoca, R-400293, Romania
>> Phone:+40-264-584037, ext 194, Fax: +40-264-420042
>> e-mail: bende at itim-cj.ro, attlbende at gmail.com
>> Web: http://www.itim-cj.ro/~bende
>>     http://www.researcherid.com/**rid/A-6539-2008<http://www.researcherid.com/rid/A-6539-2008>
>> *****************************************************
>>
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