[petsc-users] Improve in speed/efficiency from partitioning in 1 direction to 3 directions

[TAY wee-beng]

Hi,

My Fortran CFD code is currently partitioned in the z direction. Total 
grid size is around is 153x248x620. Hence depending on the no. of procs, 
the z direction 620 is partitioned. The grid size changes but the ratio 
is around there.

Parititoning in 3 directions was initially too complex for me. However, 
it seems to be much simplified with the use of DM. However, there's 
still a lot of work to be done to make it working.

I'm wondering how much improvement in speed/efficiency will I get, if I 
partition from 1 direction to 3 directions. Is it worth the effort?

-- 
Yours sincerely,

TAY wee-beng