disk space requirement for mpich2 during PETSc library compilation

[Aron Ahmadia]

Hi Ben,

My PETSc install on an OS X machine requires about 343 MB of space,
about 209 MB of which is MPICH.  Unfortunately this has the potential
of exceeding 500 MB temporarily I believe as the make process
generates a lot of object files during the software build.

I think what you want to do is compile and install your own copy of
MPICH (using a scratch directory or whatever tools you have at your
disposal), then use the --with-mpi-dir=/location/to/mpich/install
argument into configure.

I've never staged a PETSc build on a machine with an extremely limited
quota, the developers might have some suggestions on how to do this.

~A

On 1/13/07, Ben Tay <zonexo at gmail.com> wrote:
> Hi,
>
> I am trying to compile PETSc with mpi using --download-mpich=1 in linux. The
> command is
>
>
>
> ./config/configure.py
> --with-fc=/lsftmp/g0306332/inter/fc/bin/ifort
> --with-blas-lapack-dir=/lsftmp/g0306332/inter/mkl/
> --download-mpich=1 --with-x=0 --with-shared
>
> It displays:
>
> =================================================================================
> Running configure on MPICH; this may take several
> minutes
> =================================================================================
> =================================================================================
> Running make on MPICH; this may take several
> minutes
> =================================================================================
>
> then it says disk quota exceeded. I've about 450mb free space, which is all
> filled up when the error shows. May I know how much disk space is required?
>
> Also can I compile just mpich on a scratch directory and then moved it to
> the PETSc externalpackages directory? Or do I have to compile everything
> (including PETSc) on a scratch directory and moved it my my directory?
>
> thank you.