giorno mar 7 nov 2023 alle ore 12:25 Pierre Jolivet ha
scritto:
>
>
> On 7 Nov 2023, at 8:47 PM, Victoria Rolandi
> wrote:
>
> Hi Pierre,
>
> Thanks for your reply. I am now trying to configure PETSc with the same
> METIS/ParMETIS of my main code.
>
> I get the
:34 Pierre Jolivet ha
scritto:
>
>
> On 3 Nov 2023, at 7:28 PM, Victoria Rolandi
> wrote:
>
> Pierre,
>
> Sure, I have now installed PETSc with MUMPS and PT-SCHOTCH, I got some
> errors at the beginning but then it worked adding
> --COPTFLAGS="-D_POSIX_C_SOURCE=1
an the one
separately installed by PETSC during the configuration?
Hence should I configure PETSc linking ParMetis to the same library used by
my main code?
Thanks,
Victoria
Il giorno gio 2 nov 2023 alle ore 09:35 Pierre Jolivet ha
scritto:
>
> On 2 Nov 2023, at 5:29 PM, Victoria
edges
> Ordering based on AMF
> WARNING: Largest root node of size26 not selected for parallel
> execution
>
> Leaving analysis phase with ...
> INFOG(1) = 0
> INFOG(2) = 0
> […]
>
> Try parmetis.
>
Hi,
I'm solving a large sparse linear system in parallel and I am using PETSc
with MUMPS. I am trying to test different options, like the ordering of the
matrix. Everything works if I use the *-mat_mumps_icntl_7 2 *or
*-mat_mumps_icntl_7
0 *options (with the first one, AMF, performing better
