Re: [Numpy-discussion] [SciPy-dev] NumPy/SciPy + MPI for Python

[eric <er...@en...>]

Brian Granger wrote:
> Just as a data point.
>
> I have used mpi4py before and have built it on many systems ranging
> from my macbook to NERSC supercomputers.  In my opinion it is
> currently the best python mpi bindings available.  Lisandro has done a
> fantastic job with this.  Also Fernando and I have worked hard to make
> sure that mpi4py works with the new parallel capabilities of IPython.
>
> I would love to see mpi4py hosted in a public repository for others to
> contribute.  I think this would really solidify mpi4py as a top notch
> mpi interface.  But, my only concern is that there might be many folks
> who want to use mpi4py who don't need scipy.  I am one of those folks
> - I don't necessarily need scipy on the NERSC supercomputers, but I do
> need mpi4py.  Because of this, I would probably still recommend
> keeping mpi4py as a separate project.  Is there any chance it could be
> hosted at mip4py.scipy.org?
>  =20
Fine from our side...

eric

> I strongly encourage others to try it out.  Installation is is easy.
>
> Brian Granger
>
> On 10/13/06, Lisandro Dalcin <da...@gm...> wrote:
>  =20
>> This post is surely OT, but I cannot imagine a better place to contact
>> people about this subject. Please, don't blame me.
>>
>> Any people here interested in NumPy/SciPy + MPI? From some time ago,
>> I've been developing mpi4py (first release at SF) and I am really near
>> to release a new version.
>>
>> This package exposes an API almost identical to MPI-2 C++ bindings.
>> Almost all MPI-1 and MPI-2 features (even one-sided communications and
>> parallel I/O) are fully supported for any object exposing
>> single-segment buffer interface, an only some of them for
>> communication of general Python objects (with the help of
>> pickle/marshal).
>>
>> The posibility of constructing any user-defined MPI datatypes, as well
>> as virtual topologies (specially cartesian), can be really nice for
>> anyone interested in parallel multidimensional array procesing.
>>
>> Before the next release, I would like to wait for any comment, You can
>> contact me via private mail to get a tarbal with latest developments,
>> or we can have some discussion here, if many of you consider this a
>> good idea. In the long term, I would like to see mpi4py integrated as
>> a subpackage of SciPy.
>>
>> Regards,
>>
>> --
>> Lisandro Dalc=EDn
>> ---------------
>> Centro Internacional de M=E9todos Computacionales en Ingenier=EDa (CIM=
EC)
>> Instituto de Desarrollo Tecnol=F3gico para la Industria Qu=EDmica (INT=
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T)
>> PTLC - G=FCemes 3450, (3000) Santa Fe, Argentina
>> Tel/Fax: +54-(0)342-451.1594
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>>
>>    =20
>
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>  =20