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Re: Slow PetscInitialize?

 

On Mon, Oct 15, 2012 at 06:38:23AM +0100, Garth N. Wells wrote:
>      > You also have MPI, to which PETSc will make calls. I haven't
>      used the > Ubuntu OpenMPI package for a long time because I
>      kept finding bugs in > it (and it doesn't support threads), so
>      now I just build my own MPI > and don't bother with the MPI
>      package.  I've been trying various options today. I had trouble
>      getting MPICH to compile on my machine and building OpenMPI
>      gives the same result as the Ubuntu OpenMPI.  I'm not 100% sure
>      the Ubuntu OpenMPI is not being picked up. I removed it first
>      but needed to install it again since the boost package depends
>      on it. Do you use the package for boost or do you install that
>      locally too?
>
>    Â IÂ have almost everything installed locally to avoid pulling in
>    unwanted versions of MPI, BLAS and LAPACK.
>    Garth

Do we have that documented somewhere? It would be good to get this
into Dorsal (if possible) to make it easy to share the knowledge of
how to build 'hpc' versions of FEniCS on some standard systems.

Are you still running Ubuntu? One option would be to have a special
platform file for the latest Ubuntu which does more than the standard
platform file, including boost, mpi, blas, lapack and more.

--
Anders


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