'Re: [Rocks-Discuss]Additional NICs'

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List:       npaci-rocks-discussion
Subject:    Re: [Rocks-Discuss]Additional NICs
From:       "mason j. katz" <mjk () sdsc ! edu>
Date:       2006-04-28 16:02:58
Message-ID: FB788CE3-068E-45D9-B8E4-89D7451AE2DE () sdsc ! edu
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http://www.rocksclusters.org/rocks-documentation/4.1/customization- 
extra-nic.html

Then in your machines file you'll need to name the GigE interfaces  
and the fast ethernet interfaces.  Although you may wish to simplify  
your cluster and just use one gigabit network.  You will likely see  
more benefit from moving everything to a single gigabit than trying  
to keep NFS on fast ethernet and MPI on Gigabit.

         -mjk


On Apr 28, 2006, at 01:19 A, Nasr Y.M.J.O. wrote:

> Dear All,
>
> I have a cluster interconnected by GigE and I am planning to add an  
> additional fast ethernet NIC in the compute nodes.
>
> How can I specify that the GigE be used by MPICH applications  
> whereas the fast ethernet be used by the system?
>
> Is there any study that shows any latency reduction by adding two  
> ethernet networks to the cluster?
>
> Thanks in advance,
>
> Nasr
>
> Get your ringtones, operator logos and picture messages from MSN  
> Mobile.


[Attachment #3 (unknown)]

<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: \
after-white-space; "><A \
href="http://www.rocksclusters.org/rocks-documentation/4.1/customization-extra-nic.htm \
l">http://www.rocksclusters.org/rocks-documentation/4.1/customization-extra-nic.html</A><DIV><BR \
class="khtml-block-placeholder"></DIV><DIV>Then in your machines file you'll need to \
name the GigE interfaces and the fast ethernet interfaces.  Although you may wish to \
simplify your cluster and just use one gigabit network.  You will likely see more \
benefit from moving everything to a single gigabit than trying to keep NFS on fast \
ethernet and MPI on Gigabit.</DIV><DIV><BR><DIV> <SPAN class="Apple-style-span" \
style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); \
font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; \
font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; \
-khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: \
auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: \
0px; "><DIV>        -mjk</DIV><BR class="Apple-interchange-newline"></SPAN> \
</DIV><BR><DIV><DIV>On Apr 28, 2006, at 01:19 A, Nasr Y.M.J.O. wrote:</DIV><BR \
class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><DIV \
style="background-color:"><DIV class="RTE">Dear All,</DIV> <DIV class="RTE"> </DIV> \
<DIV class="RTE">I have a cluster interconnected by GigE and I am planning to add an \
additional fast ethernet NIC in the compute nodes. </DIV> <DIV class="RTE"> </DIV> \
<DIV class="RTE">How can I specify that the GigE be used by MPICH applications \
whereas the fast ethernet be used by the system? </DIV> <DIV class="RTE"> </DIV> <DIV \
class="RTE">Is there any study that shows any latency reduction by adding two \
ethernet networks to the cluster?</DIV> <DIV class="RTE"> </DIV> <DIV \
class="RTE">Thanks in advance,</DIV> <DIV class="RTE"> </DIV> <DIV class="RTE">Nasr \
</DIV></DIV><BR clear="all"><HR>Get your ringtones, operator logos and picture \
messages from <A href="http://g.msn.com/8HMBENMY/2752??PS=47575" target="_top">MSN \
Mobile.</A> </BLOCKQUOTE></DIV><BR></DIV></BODY></HTML>



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