[mpich-discuss] issues when writing a simple makefile to build MPI programs

[Pavan Balaji]

Hi Clara,

Even for a single node, Hydra is still the preferred process manager. 
For most platforms, you might be able to discard -lopa.

Another trick you can do is to configure mpich2 with --enable-lib-depend 
and --enable-shared. This will still create multiple libraries, but 
libmpich.so will depend on libmpl.so and libopa.so, so these libraries 
will automatically get loaded when linked against libmpich.so. This 
trick is still experimental, and if things break you are on your own :-).

Hope that helps.

  -- Pavan

On 06/25/2011 12:12 PM, clara wrote:
> I am doing some research about MPI implementation on a single node, so I
> wish I can get a mpich2 with necessary libraries as little as possible.
>
> On Sat, Jun 25, 2011 at 1:08 PM, Pavan Balaji <balaji at mcs.anl.gov
> <mailto:balaji at mcs.anl.gov>> wrote:
>
>
>     On 06/25/2011 11:39 AM, clara wrote:
>
>         Are -lopa -lmpl necessory for building programs with mpich2 using
>         gforker process manager? Thanks.
>
>
>     Yes, they are needed. Also, is there a reason for you to use gforker
>     and not the default Hydra process manager?
>
>
>       -- Pavan
>
>     --
>     Pavan Balaji
>     http://www.mcs.anl.gov/~balaji
>
>

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji