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From: Don Kerr (Don.Kerr_at_[hidden])
Date: 2007-06-11 09:18:00


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.
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>______________________________________________________________________
>
>
>>>
>>>
>>>
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>>>>>
>>>>>
>>>>>
>>>>their life, your
>>>>
>>>>
>>>>
>>>>>story. Play Sims Stories at Yahoo! Games.
>>>>>http://sims.yahoo.com/
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>>>>>
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>>
>>>>>
>>>>>
>>>>>
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>>>>
>>>
>>>
>>>
>>>
>>>
>____________________________________________________________________________________
>
>
>>>Moody friends. Drama queens. Your life? Nope! -
>>>
>>>
>>their life, your story. Play Sims Stories at Yahoo!
>>Games.
>>
>>
>>>http://sims.yahoo.com/
>>>_______________________________________________
>>>users mailing list
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>>
>>
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