petsc-3.7.1 2016-05-15
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PCGASMGetSubmatrices

Gets the local submatrices (for this processor only) for the additive Schwarz preconditioner.

Synopsis

#include "petscpc.h" 
PetscErrorCode  PCGASMGetSubmatrices(PC pc,PetscInt *n,Mat *mat[])
Not Collective Many br

Input Parameter

pc -the preconditioner context Many br

Output Parameters

n - the number of matrices for this processor (default value = 1) Many br
mat - the matrices Many br

Notes: matrices returned by this routine have the same communicators as the index sets (IS) Many brused to define subdomains in PCGASMSetSubdomains() Many br Many br

Keywords

PC, GASM, set, local, subdomains, additive Schwarz, block Jacobi

See Also

PCGASMSetOverlap(), PCGASMGetSubKSP(),
PCGASMCreateSubdomains2D(), PCGASMSetSubdomains(), PCGASMGetSubdomains() Many br

Level:advanced
Location:
src/ksp/pc/impls/gasm/gasm.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages