PCASMGetLocalSubdomains#

Gets the local subdomains (for this processor only) for the additive Schwarz preconditioner, PCASM.

Synopsis#

#include "petscpc.h" 
PetscErrorCode PCASMGetLocalSubdomains(PC pc, PetscInt *n, IS *is[], IS *is_local[])

Not Collective

Input Parameter#

  • pc - the preconditioner context

Output Parameters#

  • n - if requested, the number of subdomains for this processor (default value = 1)

  • is - if requested, the index sets that define the subdomains for this processor

  • is_local - if requested, the index sets that define the local part of the subdomains for this processor (can be NULL)

Note#

The IS numbering is in the parallel, global numbering of the vector.

See Also#

KSP: Linear System Solvers, PCASM, PCASMSetTotalSubdomains(), PCASMSetOverlap(), PCASMGetSubKSP(), PCASMCreateSubdomains2D(), PCASMSetLocalSubdomains(), PCASMGetLocalSubmatrices()

Level#

advanced

Location#

src/ksp/pc/impls/asm/asm.c

Index of all PC routines
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Index of all manual pages