[petsc-users] Mumps giving huge volume of output

[Satish Balay]

This is coming from mumps. PETSc configure option --with-debugging=0 does not control it.

You might have to check which mumps option controls it - and perhaps use the runtime option -mat_mumps_icntl_(x)

Satish

On Sun, 19 Apr 2020, san.temporal at gmail.com wrote:

> I have just successfully compiled PETSc with
> 
> ./configure --with-cc=mpicc --with-fc=mpif90 -with-cxx=mpicxx
> --prefix=/home/santiago/usr/local --with-make-np=10
>  --with-shared-libraries
> --with-packages-download-dir=/home/santiago/Documents/installers/petsc
> --download-fblaslapack --download-mumps --download-scalapack
> --with-debugging=0 COPTFLAGS='-O -O3 -march=native -mtune=native'
> FOPTFLAGS='-O -O3 -march=native -mtune=native' CXXOPTFLAGS='-O -O3
> -march=native -mtune=native'
> 
> When I run my program, I get very large amounts of information from mumps.
> For example, the first such block starts with
> 
>     Entering DMUMPS 5.2.1 from C interface with JOB, N =   1          15
>           executing #MPI =      8, without OMP
> 
>      =================================================
>      This MUMPS version includes code for SAVE_RESTORE
>      =================================================
>     L U Solver for unsymmetric matrices
>     Type of parallelism: Working host
> 
>      ****** ANALYSIS STEP ********
> 
>      ** Max-trans not allowed because matrix is distributed
> 
>     Entering analysis phase with ...
> 
> Is there a way to control (and eliminate) that output?
> I guessed with --with-debugging=0 would do the trick, but that was not the
> case.
> 
> Thanks,
> Santiago
>