PCASMGetSubKSP#
Gets the local KSP contexts for all blocks on this processor.
Synopsis#
#include "petscpc.h"
PetscErrorCode PCASMGetSubKSP(PC pc, PetscInt *n_local, PetscInt *first_local, KSP *ksp[])
Collective iff first_local is requested
Input Parameter#
pc - the preconditioner context
Output Parameters#
n_local - the number of blocks on this processor or
NULLfirst_local - the global number of the first block on this processor or
NULL, all processors must request or all must passNULLksp - the array of
KSPcontexts
Notes#
After PCASMGetSubKSP() the array of KSPs is not to be freed.
You must call KSPSetUp() before calling PCASMGetSubKSP().
Fortran Notes#
The output argument ‘ksp’ must be an array of sufficient length or PETSC_NULL_KSP. The latter can be used to learn the necessary length.
See Also#
KSP: Linear System Solvers, PCASM, PCASMSetTotalSubdomains(), PCASMSetOverlap(),
PCASMCreateSubdomains2D(),
Level#
advanced
Location#
Examples#
Implementations#
PCASMGetSubKSP_ASM() in src/ksp/pc/impls/asm/asm.c
Index of all PC routines
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Index of all manual pages