Re: Parallel Octave possibilities?

[Javier Fernández Baldomero]

"E. Joshua Rigler" wrote:
> 
> 1a) What exactly is the "--with-MPI" option in Octave's configure script
> for?  Is this an evolved version of Octave-MPI (by Alex Verstak)?  Is
> there an extant web page or some other documentation for this (I could
> only find this currently non-responding link
> http://corto.icg.to.infn.it/andy/octave-mpi/)?
> 

Hi Joshua,

I found this thread related to the --with-mpi switch

http://www.octave.org/octave-lists/archive/octave-maintainers.2003/threads.html#00272

Well, J.W.Eaton was planning to call it just "--mpi".
I think it's more related to Andy's patches than to Alex' bindings.
It seems that it was designed to make some initialization stuff.
I have been trying to read the "configure" script... apparently,
it only checks that it can link a sample MPI_Init program
(and can include the header mpi.h). 

Others will hopefully give a better explanation :-)


> 2) How does this compare with Javier Fernández Baldomero's MPI tool box
> (MPITB) fo Octave (http://atc.ugr.es/javier-bin/mpitb)?  Are they even
> mutually exclusive?
> 

I used --enable-shared --enable-dl --enable-lite-kernel.
If I understood the configure script I could tell if there
might be any incompatibilities among --with-mpi and MPITB.
Apparently, it only checks that it can include mpi.h and compile
with -lmpi. If that's true, there can't be any incompatibility.
That is, you can configure --with-mpi and either use MPITB or not.

I must obviously be missing something. Either that, or the
--with-mpi switch was the first step to support some functionality
that wasn't added later.

-javier



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