[petsc-users] Better solver and preconditioner to use multiple GPU

[Ramoni Z. Sedano Azevedo]

Hey!

I am using PETSC in Fortran code and we apply the MPI process to
parallelize the code.

At the moment, the options that have been used are
-ksp_monitor_true_residual
-ksp_type bcgs
-pc_type bjacobi
-sub_pc_type ilu
-sub_pc_factor_levels 3
-sub_pc_factor_fill 6

Now, we want to use multiple GPUs and I would like to know if there is a
better solver and preconditioner pair to apply in this case.

Yours sincerely,
Ramoni Z. S . Azevedo
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