#include "petscpc.h" PetscErrorCode PCASMSetTotalSubdomains(PC pc,PetscInt N,IS is,IS is_local)Collective on PC
|pc||- the preconditioner context|
|N||- the number of subdomains for all processors|
|is||- the index sets that define the subdomains for all processors (or PETSC_NULL to ask PETSc to compe up with subdomains)|
|is_local||- the index sets that define the local part of the subdomains for this processor (or PETSC_NULL to use the default of 1 subdomain per process)|
By default the ASM preconditioner uses 1 block per processor.
These index sets cannot be destroyed until after completion of the linear solves for which the ASM preconditioner is being used.
Use PCASMSetLocalSubdomains() to set local subdomains.
The IS numbering is in the parallel, global numbering of the vector for both is and is_local
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages