PCHPDDMSetAuxiliaryMat#
Sets the auxiliary matrix used by PCHPDDM for the concurrent GenEO problems at the finest level. As an example, in a finite element context with nonoverlapping subdomains plus (overlapping) ghost elements, this could be the unassembled (Neumann) local overlapping operator. As opposed to the assembled (Dirichlet) local overlapping operator obtained by summing neighborhood contributions at the interface of ghost elements.
Synopsis#
#include "petscpc.h"
PetscErrorCode PCHPDDMSetAuxiliaryMat(PC pc, IS is, Mat A, PetscErrorCode (*setup)(Mat, PetscReal, Vec, Vec, PetscReal, IS, void*), void* setup_ctx)
Input Parameters#
- pc
preconditioner context
- is
index set of the local auxiliary, e.g., Neumann, matrix
- A
auxiliary sequential matrix
- setup
function for generating the auxiliary matrix
- setup_ctx
context for setup
See Also#
PCCreate(), PCSetType(), PCType, PC, PCHPDDMSetRHSMat(), MATIS
Level#
intermediate
Location#
Examples#
src/ksp/ksp/tutorials/ex76.c.html
src/ksp/ksp/tutorials/ex76f.F90.html
src/ksp/ksp/tutorials/ex82.c.html
Implementations#
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages