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<TITLE>RE: [mpich-discuss] mpich2 and IPoIB</TITLE>
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<P><FONT SIZE=2> Hi,<BR>
Yes, you can use the "-ifhn" option in the machinefile with smpd.<BR>
Let us know if you have any problems.<BR>
<BR>
Regards,<BR>
Jayesh<BR>
<BR>
-----Original Message-----<BR>
From: owner-mpich-discuss@mcs.anl.gov [<A HREF="mailto:owner-mpich-discuss@mcs.anl.gov">mailto:owner-mpich-discuss@mcs.anl.gov</A>] On Behalf Of Rajeev Thakur<BR>
Sent: Monday, October 27, 2008 2:22 PM<BR>
To: mpich-discuss@mcs.anl.gov<BR>
Subject: RE: [mpich-discuss] mpich2 and IPoIB<BR>
<BR>
Probably :-). From doing a grep in the smpd directory it looks like it might accept "-ifhn hostname"<BR>
<BR>
Rajeev<BR>
<BR>
> -----Original Message-----<BR>
> From: owner-mpich-discuss@mcs.anl.gov<BR>
> [<A HREF="mailto:owner-mpich-discuss@mcs.anl.gov">mailto:owner-mpich-discuss@mcs.anl.gov</A>] On Behalf Of Fabio Motezuki<BR>
> Sent: Monday, October 27, 2008 2:12 PM<BR>
> To: mpich-discuss@mcs.anl.gov<BR>
> Subject: Re: [mpich-discuss] mpich2 and IPoIB<BR>
><BR>
> Thanks Rajeev,<BR>
><BR>
> I'll try it, perhaps is there any options like this for smpd?<BR>
><BR>
> Fabio<BR>
><BR>
><BR>
> Rajeev Thakur escreveu:<BR>
> > Try specifying the interface name using ifhn= in the<BR>
> mpd.hosts file as<BR>
> > described in Sec 5.1.5 of the installation guide.<BR>
> ><BR>
> <A HREF="http://www.mcs.anl.gov/research/projects/mpich2/documentation/">http://www.mcs.anl.gov/research/projects/mpich2/documentation/</A><BR>
> files/mpich2-1<BR>
> > .0.8-installguide.pdf<BR>
> ><BR>
> > Rajeev<BR>
> ><BR>
> > <BR>
> >> -----Original Message-----<BR>
> >> From: owner-mpich-discuss@mcs.anl.gov<BR>
> >> [<A HREF="mailto:owner-mpich-discuss@mcs.anl.gov">mailto:owner-mpich-discuss@mcs.anl.gov</A>] On Behalf Of<BR>
> Fabio Motezuki<BR>
> >> Sent: Monday, October 27, 2008 5:35 AM<BR>
> >> To: mpich-discuss@mcs.anl.gov<BR>
> >> Subject: [mpich-discuss] mpich2 and IPoIB<BR>
> >><BR>
> >> Hi all,<BR>
> >><BR>
> >> I'm working on a cluster where each node is connected with two<BR>
> >> networks:<BR>
> >><BR>
> >> eth0 - gigabit ethernet<BR>
> >> ib0 - IP over infiniband<BR>
> >><BR>
> >> I would like to use the ib0 net for all mpi communications, but<BR>
> >> when I start the example cpi all comunications go through eth0 is<BR>
> this the<BR>
> >> expected behavior?<BR>
> >><BR>
> >> I'm launching the example program with "mpiexec<BR>
> -machinefile mf -n 16<BR>
> >> ./cpi" where the file "mf" contains the ip address of infiniband<BR>
> >> cards.<BR>
> >><BR>
> >> Fabio<BR>
> >><BR>
> >><BR>
> >> <BR>
> ><BR>
> ><BR>
> > <BR>
><BR>
><BR>
<BR>
</FONT>
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