[mpich-discuss] [mpich2-dev] ask for help in mpich2

[Jeff Hammond]

Hi Zony,

(mpich-discuss at mcs.anl.gov is the appropriate list for such messages.)

I strongly recommend that you work with your colleagues to learn to use MPI
the normal way.  Hacking MPICH2 to do non-standard-compliant things will
only lead to bigger problems for them later.

MPI is already an incredibly rich programming model and it is more than
sufficient for the vast majority of parallel applications.  I do not know
of a single application that cannot be implemented using MPI and the effort
required is usually rather modest.  Many application developers find that
they need to learn only a few (~10) MPI functions in order to parallelize
their code, even for the largest supercomputers in the world.

There are many books on parallel programming with MPI.  One you might
consider is by Peter Pacheco.  See also "Using MPI-1", which is written by
some of the developers of MPICH2.

Best,

Jeff

On Mon, Nov 28, 2011 at 9:13 AM, sun big man <332344727 at qq.com> wrote:

> hi professioners:
>     Many of my colleages complait that the parallel program is so
>  difficult to write.so now i have an idea to make some changes on mpich.
>     generally,i prepare to integrate all the parallel computation our lab
> may use into libraries.so others will just call the parallel function in
> the libraries in traditional serial program way.i mean i could fork several
> processes in one node and then migrate them to others in the libraries. but
> all the work will be thransparent to the ordinary programers.I know it will
> broke some items of the mpi standard,but what we care is the easiness in
> programming.
>    when i just begin my job,i find it's hard for me to clarify the
> functions of mpich implementation.so i preciate if you coule send me some
> details in mpich's implementation ,such as the latest design document,the
> architecture of mpich2, the realtionship of the functions,the original
> intentions .etc.
>     i also preciate for your other ideas on my job.
>
>    i hope i have make myself understood for my poor english.
>
>    thank you so much
>
>
> Zony from China
> 2011.11.18
>



-- 
Jeff Hammond
Argonne Leadership Computing Facility
University of Chicago Computation Institute
jhammond at alcf.anl.gov / (630) 252-5381
http://www.linkedin.com/in/jeffhammond
https://wiki-old.alcf.anl.gov/index.php/User:Jhammond
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