[petsc-dev] Building a serial version of petsc with sundials, hypre, scalapack, etc

[Satish Balay]

On Mon, 19 Dec 2011, Barry Smith wrote:

> 
> On Dec 19, 2011, at 12:06 AM, Dave Nystrom wrote:
> 
> > Several of the external packages that have been interfaced with petsc require
> > mpi.  Is there a way to build a serial version of petsc with these packages
> > and use stub routines for mpi?
> 
>    MUMPS can be built without MPI using petsc-dev but all of the other packages require MPI, no way around it that's the way their author's wrote them.

Even if the authors provide a seq version of this package - mostlikely
it relies on a internal stubmpi. And generally mixing 2 stub mpis
[from different packages] will cause grief.

The best stub mpiuni that you can use - that will work with all packages is mpich.

Satish

> 
>    Barry
> 
> 
> >  I know there are fortran stub routines,
> > i.e. mpiuni, that I am using for my application which is currently serial.
> > But is there a way to have petsc build these external packages that require
> > mpi and use some serial stub routines?  I tried building petsc with several
> > of these external packages while using the --with-mpi=0 configure option and
> > the build process would always fail and tell me to download mpi.  I'm
> > interested in being able to do this since my code is currently serial.
> > 
> > Thanks,
> > 
> > Dave
> 
>