[petsc-users] issues with mpi uni

[Janne Ruuskanen (TAU)]

Hi,

Assumingly, I have an issue using petsc and openmpi together in my c++ code.

See the code there:
https://github.com/halbux/sparselizard/blob/master/src/slmpi.cpp


So when I run:

slmpi::initialize();
slmpi::count();
slmpi::finalize();

I get the following error:


*** The MPI_Comm_size() function was called before MPI_INIT was invoked.
*** This is disallowed by the MPI standard.
*** Your MPI job will now abort.


Have you experienced anything similar with people trying to link openmpi and petsc into the same executable?

Best regards,
Janne Ruuskanen