Charm++ parallel programming system

[Maksym Planeta <mplaneta AT os.inf.tu-dresden.de>]

On 10/21/2016 07:11 PM, Phil Miller wrote:
> On Fri, Oct 21, 2016 at 11:44 AM, Maksym Planeta
> <mplaneta AT os.inf.tu-dresden.de
>  
> <mailto:mplaneta AT os.inf.tu-dresden.de>>
> wrote:
>
>     Dear Phil,
>
>     thank you for quick response.
>
>
> You're very welcome. More response in-line:
>
>
>     On 10/21/2016 06:30 PM, Phil Miller wrote:
>
>         This tool was never publicly released, because it was tightly
>         bound to
>         particular versions of the Eclipse environment and the Photran
>         add-on,
>         and too much work to forward port once it was developed.
>
>         However, I may be able to offer you a solid substitute. We have
>         developed a compiler-like tool based on the ROSE framework that
>         can read
>         the source code to identify all of the relevant global
>         variables. From
>         there, it can give you a list of source locations, and in many
>         cases is
>         able to both generate patch files with a transformation or
>         directly emit
>         transformed code.
>
>
>     Currently, I just wanted to compare AMPI vs MPI and for that I
>     planned to port several benchmarks (NPB or miniapps). I will be
>     happy to have any tool which makes porting smoother.
>
>
> I believe we actually have ported versions of the NPB that we could
> readily share with you. We've also already ported and tested parts of
> the Mantevo suite and most of the Lawrence Livermore ASC proxy applications.

I would be very interested in that.

> Is your end goal a benchmarking/performance analysis study, or
> evaluating AMPI for use in some larger application project? This sort of
> context can help inform how we can assist you.

Right now my goal is benchmarking and performance analysis. Basically, I 
want to do performance evaluation and present the results to my group.

And we are not an application group, we do OS research.

>         The key questions to ask about your use case are
>         - What language is your code written in?
>
>
>     The language is most likely Fortran. Probably also C or C++, but
>     these applications are not that important.
>
>
> For the automated tooling, Fortran is a bit harder to deal with (there
> are more compiler-specific dialects and constructs in wide use). We
> would definitely want to try the tooling out, but can make fewer
> promises that it will work well on everything.
>
>
>         - What libraries (if any) does it rely on?
>
>
>     The benchmarks do not rely on any library.
>
>         - What kind of environment will you use to run it?
>
>
>     Which environment do you mean? We have SLURM at our site, if it is
>     important.
>
>
> Mostly, I wanted to distinguish between commodity clusters and more
> proprietary supercomputers, like IBM Blue Gene and Cray. The specialized
> systems have more quirks that make AMPI a bit harder to use. SLURM on a
> common Linux cluster is perfectly straightforward.
>
>
>
>
>         The tooling and runtime system support we have for this are all
>         still
>         somewhat experimental. We would generally like to work with you
>         to get
>         new applications up and running, so that we can learn what more
>         needs to
>         be done to make the process easier and more robust.
>
>         Sincerely,
>
>         Phil Miller
>
>
>         On Fri, Oct 21, 2016 at 11:22 AM, Maksym Planeta
>         
> <mplaneta AT os.inf.tu-dresden.de
>         
> <mailto:mplaneta AT os.inf.tu-dresden.de>
>         
> <mailto:mplaneta AT os.inf.tu-dresden.de
>         
> <mailto:mplaneta AT os.inf.tu-dresden.de>>>
>         wrote:
>
>             Dear Charm++ developers,
>
>             a paper called "Automatic MPI to AMPI Program Transformation
>         using
>             Photran" describes a tool which allows automatically
>         transform MPI
>             code into AMPI code.
>
>             Unfortunately I did not manage to find this tool available
>         online.
>
>             I understand that paper is relatively old, but could you
>         tell me if
>             this tool is still possible to download?
>
>             --
>             With best regards,
>             Maksym Planeta
>
>
>
>     --
>     Regards,
>     Maksym Planeta

--
Regards,
Maksym Planeta

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