#include "petscdmda.h" #include "petscksp.h" PetscErrorCode PCExoticSetType(PC pc,PCExoticType type)Logically Collective on PC Many br
pc | - the preconditioner context Many br | |
type | - either PC_EXOTIC_FACE or PC_EXOTIC_WIREBASKET (defaults to face) Many br |
Notes: The face based interpolation has 1 degree of freedom per face and ignores the Many bredge and vertex values completely in the coarse problem. For any seven point Many brstencil the interpolation of a constant on all faces into the interior is that constant. Many br
The wirebasket interpolation has 1 degree of freedom per vertex, per edge and Many brper face. A constant on the subdomain boundary is interpolated as that constant Many brin the interior of the domain. Many br
The coarse grid matrix is obtained via the Galerkin computation A_c = R A R^T, hence Many brif A is nonsingular A_c is also nonsingular. Many br
Both interpolations are suitable for only scalar problems. Many br
Many br
Level:intermediate
Location:src/ksp/pc/impls/wb/wb.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages