On Mon, Feb 20, 2012 at 3:21 PM, Sean Farley <[email protected]> wrote:

This hangs for me in the METIS ordering stage

...

(src/ksp/ksp/examples/tutorials/ex2):

mpirun -np 1 ./ex2 -n 100 -m 100 -ksp_type preonly -pc_type lu -pc_factor_mat_solver_package mumps -mat_mumps_icntl_7 5 -info

Thanks, I'll look into this.

It seems to be a problem with metis' interpretation of the vertex weights. If you set the vwgt=0x0 in a debugger when stopped at metis_nodend_ it completes successfully. Also, if you set the weights to 1 inside dmumps_part2.F like: DO I=1,NCMP FILS(I) = 1 ENDDO it also runs fine. I think having zero vertex weights is probably wrong anyways. Regards, John