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Subject: Re: [OMPI users] How to get started?
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2008-08-30 10:48:43


Adam --

Sorry for the delay; I've been on travels for what seems like forever
and have fallen behind on updating the FAQ. I will definitely take
your text and post it soon.

Many thanks! (and keep it coming!)

On Aug 28, 2008, at 8:10 AM, Adam C Powell IV wrote:

> With no comments in a week, can this go in? Additional optional text
> regarding an unofficial backport is inline below.
>
> Thanks,
> Adam
>
> On Thu, 2008-08-21 at 00:22 -0400, Adam C Powell IV wrote:
>> Okay, here goes a start:
>>
>> Category: Platform Specific Questions | Debian/Ubuntu
>>
>> $q[] = "Which Debian Open MPI packages do I need?";
>>
>> $anchor[] = "debian-package-contents";
>>
>> $a[] = "That depends on your use of Open MPI. If you are running a
>> pre-compiled MPI binary in one process, you simply need
>> [libopenmpi1].
>> To launch jobs in multiple processes, you need [openmpi-bin], which
>> includes [orted], [orterun] (_a.k.a._ [mpirun]), and [ompi_info]. To
>> compile programs, you need [libopenmpi-dev], or if you need debugging
>> symbols, then [libopenmpi-dbg] with debugging symbols.<p> Note: if
>> you
>> install, or have ever installed, mpich and/or lam packages, please be
>> sure you use [update-alternatives] to make sure that the \"[mpi]\"
>> and
>> \"[mpirun]\" symlinks point to the Open MPI entries.";
>>
>> $q[] = "How do I run Open MPI programs in a Debian chroot
>> environment?";
>>
>> $anchor[] = "debian-chroot-broken";
>>
>> $a[] = "As of version 1.2.7, this does not work; see " .
>> aurchin_click("http://bugs.debian.org/494046") . "Debian bug
>> 494046</a>.";
>>
>> $q[] = "Is Ubuntu Linux a supported platform?";
>>
>> $anchor[] = "ubuntu";
>>
>> $a[] = "Unofficially, there are Open MPI packages in the Ubuntu
>> \"universe\" package section. Unfortunately, the packages in 8.04
>> LTS
>> Hardy Heron are buggy, so you should either get packages from Debian
>> Lenny or compile Open MPI yourself.<p> In general, Ubuntu gets its
>> \"universe\" packages from Debian unstable at a time set by their
>> release schedules, a time generally not known to the Debian package
>> developers, so the quality of the Ubuntu packages is generally not as
>> good as that of the packages in a Debian release.";
>
> There is an unofficial backport of the 1.2.7-rc1 release for Ubuntu
> Hardy Heron which you can get by following the instructions at:
> http://www.opennovation.org/ubuntu/ .
>
>> Dirk, any comments?
>>
>> -Adam
>>
>> On Fri, 2008-08-15 at 15:43 -0400, Jeff Squyres wrote:
>>> I love it when people submit FAQ text -- please do! :-)
>>>
>>> Check out our guidelines on how to write FAQ entries:
>>>
>>> https://svn.open-mpi.org/trac/ompi/wiki/OMPIFAQEntries
>>>
>>>
>>> On Aug 15, 2008, at 12:20 PM, Adam C Powell IV wrote:
>>>
>>>> A number of distributors provide pre-compiled Open-MPI packages, so
>>>> one
>>>> doesn't need to go to the trouble of compiling it. For example, on
>>>> Debian GNU/Linux, Dirk Eddelbuettel has led a packaging effort such
>>>> that
>>>> "apt-get install libopenmpi-dev openmpi-bin" (or the equivalent
>>>> from
>>>> aptitude or synaptic) gets everything one needs to compile and
>>>> run an
>>>> Open-MPI program.
>>>>
>>>> Can someone add this to the FAQ? I'd be glad to contribute a
>>>> paragraph,
>>>> and update it as needed. (E.g. Debian Lenny will have a working
>>>> version
>>>> of 1.2.7-rc2, though Ubuntu Hardy universe has AFAIR a buggy
>>>> version
>>>> of
>>>> 1.2.5...)
>>>>
>>>> -Adam
>>>>
>>>> On Fri, 2008-08-15 at 12:47 +0200, jody wrote:
>>>>> Hi Anughra
>>>>>
>>>>> Why don't you check the FAQ first:
>>>>> http://www.open-mpi.org/faq/
>>>>>
>>>>> It answers may questions and also provides instruction to install
>>>>> Open-MPI and build MPI applications.
>>>>> And, yes, Open-MPI works with gcc.
>>>>>
>>>>> Jody
>>>>>
>>>>> On Fri, Aug 15, 2008 at 12:25 PM, Anugraha Sankaranarayanan
>>>>> <atomhouse_at_[hidden]> wrote:
>>>>>> hi all,
>>>>>> I'm new to MPI.Can I install OpenMPI for my gcc?I'm using
>>>>>> Ubuntu(hardy heron) on a Intel DualCore Notebook.
>>>>>>
>>>>>>
>>>>>> Anugraha.S
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-- 
Jeff Squyres
Cisco Systems