[CIG-LONG] problem with gale on a cluster

[js at cp.dias.ie]

Hello Walter,
thank you for the input file.

Unfortunately I am unable to compile mumps with petsc-2.3.2.

Currently I have mpich2-1.0.4p1 installed which was
compiled with gcc/g77/gfortran for mpicc/mpif77/mpif90
respectively.

the problem I encounter is as follows,

compiling petsc with blacs requires mpif77. By default
petsc chooses mpif90 and this will not compile blacs.
This I can change with a flag, however then mumps will
not compile as it wants mpif90.

I can compile mumps independently with mpif90 and build
petsc with mpif77, but then I get complaints about unknown
functions beginning with _gfortran_ and build fails.

I was considering using the intel compiler, but I am unsure
if that will have any unwelcome side-effects.

What compilers do you use for building petsc, blacs and mumps?

When you say in manual "the hardest part is not installing
Gale itself, but Petsc", you weren't kidding.

Thanks again for your time.

Regards,

john.
> js at cp.dias.ie wrote:
>>
>>
>> Hello,
>> 	firstly, I would like to thank you for your efforts in
>> releasing and documenting Gale.
>>
>> 	I recently downloaded both the stable (121) and svn versions
>> and successfully ran the extension.xml model included in stable on
>> both versions with a single processor.
>>
>> 	I have just tried to run the same model on four processors,
>> using gale_svn and it crashed about half way through with the following
>> message,
>
> Try this input file with gale_svn.  I have done a number of runs on
> the cluster here, so it should work in parallel.  You may have to use
> a direct solver.  If you did not build petsc with mumps, you can do it
> by adding
>
>   --download-mumps=yes --download-blacs=yes --download-scalapack=yes
> --with-blacs=yes --with-scalapack=yes
>
> when configuring petsc.  Note that Gale is only tested with Petsc
> 2.3.2.  When running Gale, add
>
>   -mat_type aijmumps -ksp_type preonly -pc_type lu
>
> to the command line.  For example, something like
>
>   ./gale_svn extension.xml -mat_type aijmumps -ksp_type preonly -pc_type
> lu
>
> Cheers,
> Walter Landry
> walter at geodynamics.org
>