PCGASMGetSubmatrices#
Gets the local submatrices (for this MPI process only) for the PCGASM additive Schwarz preconditioner.
Synopsis#
#include "petscpc.h" 
PetscErrorCode PCGASMGetSubmatrices(PC pc, PetscInt *n, Mat *mat[])
Not Collective
Input Parameter#
- pc - the preconditioner context 
Output Parameters#
- n - the number of matrices for this MPI process (default value = 1) 
- mat - the matrices 
Note#
Matrices returned by this routine have the same communicators as the index sets (IS)
used to define subdomains in PCGASMSetSubdomains()
See Also#
KSP: Linear System Solvers, PCGASM, PCGASMSetOverlap(), PCGASMGetSubKSP(),
PCGASMCreateSubdomains2D(), PCGASMSetSubdomains(), PCGASMGetSubdomains()
Level#
advanced
Location#
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages