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From: victor marian (vctrmarian_at_[hidden])
Date: 2007-06-11 09:23:35


Hi Don,

But as I see you must pay for these debuggers.

                           Victor

--- Don Kerr <Don.Kerr_at_[hidden]> wrote:

> Victor,
>
> You are right Prism will not work with Open MPI
> which Sun's ClusterTools
> 7 is based on. But Prism was not available for CT 6
> either. Totalview
> and Allinea's ddt I believe have both been tested to
> work with Open MPI.
>
> -DON
>
> victor marian wrote:
>
> > I can't turn it off right now to look in BIOS
> (the
> >computer is not at home), but I think the Pentium D
> >which is dual-core doesn't support hyper-threading.
>
> > The program I made relies on an MPI library (it
> is
> >not a benchmarking program). I think you are right,
> >maibe I should run a benchmarking program first to
> see
> >what happens. If you have a benchmarking program I
> >would gladly test it.
> > What is the best way to debug OpenMPI programs?
> >Until now I ran prism which is part of the
> >SunClusterTools.
> >
> > Victor
> >
> >--- Jeff Pummill <jpummil_at_[hidden]> wrote:
> >
> >
> >
> >>Victor,
> >>
> >>Just on a hunch, look in your BIOS to see if
> >>Hyperthreading is turned
> >>on. If so, turn it off. We have seen some unusual
> >>behavior on some of
> >>our machines unless this is disabled.
> >>
> >>I am interested in your progress as I have just
> >>begun working with
> >>OpenMPI as well. I have used mpich for quite some
> >>time, but felt
> >>compelled to get some experience with OpenMPI as
> >>well. I just installed
> >>it this weekend on an AMD dual-core machine with 2
> >>gigs of ram. Maybe I
> >>will try and replicate your experiment if you can
> >>direct me to what
> >>program you are benchmarking.
> >>
> >>Jeff F. Pummill
> >>Senior Linux Cluster Administrator
> >>University of Arkansas
> >>Fayetteville, Arkansas 72701
> >>(479) 575 - 4590
> >>http://hpc.uark.edu
> >>
> >>victor marian wrote:
> >>
> >>
> >>>The problem is that my executable file runs on
> the
> >>>Pentium D in 80 seconds on two cores and in 25
> >>>
> >>>
> >>seconds
> >>
> >>
> >>>on one core.
> >>>And on another Sun SMP machine with 20 processors
> >>>
> >>>
> >>it
> >>
> >>
> >>>runs perfectly (the problem is perfectly
> >>>
> >>>
> >>scallable).
> >>
> >>
> >>> Victor Marian
> >>> Laboratory of Machine Elements and
> Tribology
> >>> University Politehnica of Bucharest
> >>> Romania
> >>>
> >>>
> >>>--- Brock Palen <brockp_at_[hidden]> wrote:
> >>>
> >>>
> >>>
> >>>
> >>>>It means that your OMPI was compiled to support
> >>>>uDAPL (a type of
> >>>>infinibad network) but that your computer does
> >>>>
> >>>>
> >>not
> >>
> >>
> >>>>have such a card
> >>>>installed. Because you dont it will fall back
> to
> >>>>ethernet. But
> >>>>because you are just running on a single
> machine.
> >>>>
> >>>>
> >>>>You will use the
> >>>>fastest form of communication using shared
> >>>>
> >>>>
> >>memory.
> >>
> >>
> >>>>so you can ignore
> >>>>that message. Unless in the future you add a
> >>>>
> >>>>
> >>uDAPL
> >>
> >>
> >>>>powered network
> >>>>and you still get that message then you need to
> >>>>worry.
> >>>>
> >>>>Brock Palen
> >>>>Center for Advanced Computing
> >>>>brockp_at_[hidden]
> >>>>(734)936-1985
> >>>>
> >>>>
> >>>>On Jun 10, 2007, at 9:18 AM, victor marian
> wrote:
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>>Hello,
> >>>>>
> >>>>>I have a Pentium D computer with Solaris 10
> >>>>>
> >>>>>
> >>>>>
> >>>>installed.
> >>>>
> >>>>
> >>>>
> >>>>>I installed OpenMPI, succesfully compiled my
> >>>>>
> >>>>>
> >>>>>
> >>>>Fortran
> >>>>
> >>>>
> >>>>
> >>>>>program, but when giving
> >>>>>mpirun -np 2 progexe
> >>>>>I receive
> >>>>>[0,1,0]: uDAPL on host SERVSOLARIS was unable
> to
> >>>>>
> >>>>>
> >>>>>
> >>>>find
> >>>>
> >>>>
> >>>>
> >>>>>any NICs.
> >>>>>Another transport will be used instead,
> although
> >>>>>
> >>>>>
> >>>>>
> >>>>this
> >>>>
> >>>>
> >>>>
> >>>>>may result in
> >>>>>lower performance.
> >>>>>
> >>>>>I am a begginer in MPI and don't know what it
> >>>>>
> >>>>>
> >>>>>
> >>>>means.
> >>>>
> >>>>
> >>>>
> >>>>>What
> >>>>> should I do to solve the problem?
> >>>>>Thank you.
> >>>>>
> >>>>>
> >>>>>
>
=== message truncated ===

       
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