Are you using serial SuperLU, or distributed-memory SuperLU_DIST?
What are the algorithm options are you using?
Sherry Li
On Thu, Jun 9, 2022 at 2:20 PM Jorti, Zakariae via petsc-users <
petsc-users@mcs.anl.gov> wrote:
> Hi,
>
> I am solving non-linear problem that has 5 unknowns {ni, T, E, B,
You don't want to create a new vector here, but read from (and write to)
multiple parts of the same vector. You can use PETSc interfaces for subvectors,
or do it with NumPy slices (perhaps more natural and ergonomic, depending on
how your code is written).
Armand Touminet via petsc-users
Hi,
I am solving non-linear problem that has 5 unknowns {ni, T, E, B, V}, and for
the preconditioning part, I am using a FieldSplit preconditioner. At the last
fieldsplit/level, we are left with a {B,V} block that tried to precondition in
2 different ways:
a) SuperLU:
Dear Petsc team,
I'm trying to implement PDE constrained optimization using TAO from the
petsc4py interface.
Since my problem has multiple parameter fields to optimize, I need to combine
them into a single Vec object to supply to TAO. I've found the VecConcatenate
in the C documentation, which
