On Fri, Feb 24, 2012 at 11:49, Francis Poulin <[email protected]> wrote:
I don't seem to have the hydra in my bin folder but I do have petscmpiexec that I've been using.
That's just the name of my mpiexec. Use whichever one is used with your build of PETSc.
Use these, it will run the same method and sizes as the options I gave for ex22 before.
mpiexec.hydra -n 2 ./ex45 -da_grid_x 5 -da_grid_y 5 -da_grid_z 5 -da_refine 5 -ksp_monitor -pc_type mg -mg_levels_ksp_type richardson -mg_levels_pc_type sor -log_summary
Also, I want to install PetSc on an SGI machine that I have access to. I have been told that using MPT would give better performance compared to mpich2. When I configure petsc on this server I don't suppose
-with-mpi-dir=/opt/sgi/mpt
the above would work because of the different name. Do you have a suggestion as to what I could try?
It's just the way you launch parallel jobs.