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Subject: Re: [OMPI users] 2 questions about Open MPI
From: George Bosilca (bosilca_at_[hidden])
Date: 2008-03-25 11:04:53


On Mar 25, 2008, at 8:34 AM, powernetfreak_at_[hidden] wrote:
> Hello,
> thanks for your help.
> So Open MPI is OS dependent and actually it dont support Windows
> plattforms.
>
> I would want to know if (Open) MPI sipports data decomposition and\ or
> task level parallelism.
> I think that MPI supports task level parallelism.
> But i also think that OpenMPI dont support data decomposition (like
> here described: http://www.netlib.org/pvm3/book/node32.html ) "out-of-
> the-box".

"Out-of-the-box" ? Open MPI support everything in the MPI standard,
which include several functions for data decomposition. However, these
functions have to be explicitly called by the application, MPI (read
all MPI libraries) is unable to do any magic otherwise.

   george.

>
> Thanks.
>
> King regards,
>
> peter
>
>> ----Ursprüngliche Nachricht----
>> Von: jsquyres_at_[hidden]
>> Datum: 25.03.2008 13:08
>> An: "powernetfreak_at_[hidden]"<powernetfreak_at_[hidden]>, "Open MPI
> Users"<users_at_[hidden]>
>> Betreff: Re: [OMPI users] 2 questions about Open MPI
>>
>> On Mar 25, 2008, at 5:09 AM, powernetfreak_at_[hidden] wrote:
>>> Hello,
>>>
>>> i need some information for my thesis and i am not sure if it's
> right
>>> what i found in the internet before.
>>> therefore i want to ask you if the following two sentences are
> right:
>>> - Open MPI is OS independent and it runs on windows as well as
> on
>>> linux
>>
>> The Windows port seems to be perpetual; it's in progress, but the v1.
> 2
>> series does not support Windows.
>>
>>> - Open MPI dont has data decomposition support itself. I just
> can
>>> add some functions to get some kind of data decomposition support
>>
>>
>> I'm not sure what you're asking; Open MPI supports all the MPI
>> datatype functionality.
>>
>> --
>> Jeff Squyres
>> Cisco Systems
>>
>>
>
>
>
> Jetzt neu: Der Routenplaner von Tiscali
> http://www.tiscali.de/trav/routenplaner.html
>
>
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> users_at_[hidden]
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