For example check PCBJacobiGetSubKSP in src/ksp/pc/impls/bjacobi/ftn-custom/zbjacobif.c [and the fortran note in man page] PCASMGetLocalSubdomains() looks similar [in src/ksp/pc/impls/asm/ftn-custom/zasmf.c] Satish On Wed, 17 Feb 2021, Blaise A Bourdin wrote:

Hi,

I am porting src/dm/impls/plex/tests/ex26.c to fortran90 but am having a hard time figuring out how to write the fortran binding for DMCreateSuperDM. Can anybody help?

Regards, Blaise