PETSc version 3.16.6
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 on pc iff first_local is requested
Input Parameter
| pc | - the preconditioner context
|
Output Parameters
| n_local | - the number of blocks on this processor or NULL
|
| first_local | - the global number of the first block on this processor or NULL,
all processors must request or all must pass NULL
|
| ksp | - the array of KSP contexts
|
Note
After PCASMGetSubKSP() the array of KSPes is not to be freed.
You must call KSPSetUp() before calling PCASMGetSubKSP().
Fortran note
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
PCASMSetTotalSubdomains(), PCASMSetTotalSubdomains(), PCASMSetOverlap(),
PCASMCreateSubdomains2D(),
Level
advanced
Location
src/ksp/pc/impls/asm/asm.c
Examples
src/ksp/ksp/tutorials/ex8.c.html
Implementations
PCASMGetSubKSP_ASM in src/ksp/pc/impls/asm/asm.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages