[mvapich-discuss] Is MVAPICH working?

[Matthew Koop]

Chris,

You should be able to skip the ibutils package (don't select it in the
customized view).

Matt

On Fri, 4 Apr 2008, Christopher Tanner wrote:

> Thanks Matt -
>
> Upon trying to install OFED, I received the following error
> 'Failed to install ibutils RPM'
> Apparently this is b/c it couldn't find the dependency 'libstdc++.so.
> 6(GLIBCXX_3.4.9)(64bit)'
>
> I searched for an RPM for this, but I couldn't find one for my release
> (RHEL4). I have a file libstdc++.so.6.0.3 file in the /usr/lib
> directory, but I'm assuming this isn't what it needs.
>
> Is the ibutils package important? Can I install a library for a
> different release (I think I found it for Madriva)? If not, where can
> I find the source to compile it myself for my release?
>
> Thanks again.
>
> -------------------------------------------
> Chris Tanner
> Space Systems Design Lab
> Georgia Institute of Technology
> christopher.tanner at gatech.edu
> -------------------------------------------
>
>
>
> On Apr 3, 2008, at 5:08 PM, Matthew Koop wrote:
> > Chris,
> >
> > Have you (or your vendor) installed any InfiniBand libraries on the
> > machines yet? You will need to have a library like OpenFabrics that
> > interfaces with InfinBand installed on the cluster. You can download
> > the
> > latest OpenFabrics packages at:
> >
> > http://www.openfabrics.org/builds/ofed-1.3/release/OFED-1.3.tgz
> >
> > This is the "Gen2" interface. You will need to use the
> > make.mvapich.gen2
> > script to compile -- directly using configure and make will result
> > in a
> > TCP build only. OpenFabrics Enterprise Edition (OFED) includes the
> > MVAPICH2 package as well, which may help simplify the process for you.
> >
> > To verify if InfiniBand is being used, you can use the included OSU
> > benchmarks in the 'osu_benchmarks' directory to test performance.
> > You can
> > expect <5usec latency when using IB.
> >
> > Let us know if you get stuck anywhere. Thanks,
> >
> > Matt
> >
> >
> > On Thu, 3 Apr 2008, Christopher Tanner wrote:
> >
> >> Hello all -
> >>
> >> This is my first post to this group and I am a newbie to MVAPICH.
> >> Our cluster has both gigabit ethernet and Infiniband connections.
> >> Since I was unfamiliar with Infiniband, I simply used MPICH2 with
> >> good
> >> success. However, we paid for the Infiniband connections, so I want
> >> to
> >> use them. So I downloaded and compiled the MVAPICH2 1.0.1 source.
> >>
> >> I have a couple issues:
> >> a) I don't know what kind of Infiniband libraries we have (i.e. VAPI,
> >> uDAPL, Gen2-IB, iWARP). In fact, I don't know what any of those
> >> are...
> >> Does it really matter? I just did the usual 'configure' and 'make'
> >> with what seemed to be no critical errors during compilation. All of
> >> the included make.mvapich2.* scripts did not work for one reason or
> >> another.
> >>
> >> b) MVAPICH2 uses an mpd just like MPICH2. Is there a way I can tell
> >> if
> >> the mpiexec compiled from the MVAPICH2 source is really using the
> >> Infiniband links instead of the ethernet links? I haven't been able
> >> to
> >> see a big speed difference in the MPI applications I executed
> >> recently. Thus far everything runs the same as when MPICH2 was
> >> installed...
> >>
> >> Thanks guys and sorry for the really newbie questions...
> >>
> >> -------------------------------------------
> >> Chris Tanner
> >> Space Systems Design Lab
> >> Georgia Institute of Technology
> >> christopher.tanner at gatech.edu
> >> -------------------------------------------
> >>
> >>
> >>
> >> _______________________________________________
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> >> mvapich-discuss at cse.ohio-state.edu
> >> http://mail.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss
> >>
> >
>
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