Hello,
We were exploring the use of the |MatCreateComposite| function with
|petsc4py|, but we noticed that it doesn't seem to be available in the
Python interface
(https://urldefense.us/v3/__https://petsc.org/release/petsc4py/reference/petsc4py.PETSc.Mat.html__;!!G_uCfscf7eWS!fphemsDPNmxHUr-ybYLt_xWUrP575eKuI4xixwypEzd2g7uc6qMilt8etg13o24gU0vloOVrsHDXwqlgoY1T7jrcQUiv83PrXvNSYlNU$ ).
We were wondering if this is due to a technical limitation or if there
is a better alternative to achieve the same result.
Our goal is to create a matrix representing PTAP without explicitly
computing the product.
We also considered using |MatShell|, but it seems that this approach is
not supported in |petsc4py| either.
On the other hand, we noticed that |MatCreateTranspose| is implemented,
and it aligns somewhat with the kind of operation we're aiming for.
Any insights or advice you could provide would be greatly appreciated!
Thank you,
Eric
--
Eric Chamberland, ing., M. Ing
Professionnel de recherche
GIREF/Université Laval
(418) 656-2131 poste 41 22 42
