petsc-3.9.4 2018-09-11
PCSetCoordinates
sets the coordinates of all the nodes on the local process
Synopsis
#include "petscksp.h"
PetscErrorCode PCSetCoordinates(PC pc, PetscInt dim, PetscInt nloc, PetscReal *coords)
Collective on PC
Input Parameters
| pc | - the solver context
|
| dim | - the dimension of the coordinates 1, 2, or 3
|
| coords | - the coordinates
|
Notes: coords is an array of the 3D coordinates for the nodes on
the local processor. So if there are 108 equation on a processor
for a displacement finite element discretization of elasticity (so
that there are 36 = 108/3 nodes) then the array must have 108
double precision values (ie, 3 * 36). These x y z coordinates
should be ordered for nodes 0 to N-1 like so: [ 0.x, 0.y, 0.z, 1.x,
... , N-1.z ].
See Also
MatSetNearNullSpace()
Level
intermediate
Location
src/ksp/pc/interface/precon.c
Examples
src/ksp/ksp/examples/tutorials/ex54.c.html
src/ksp/ksp/examples/tutorials/ex55.c.html
src/ksp/ksp/examples/tutorials/ex56.c.html
Implementations
PCSetCoordinates_BDDC in src/ksp/pc/impls/bddc/bddc.c
PCSetCoordinates_AGG in src/ksp/pc/impls/gamg/agg.c
PCSetCoordinates_GEO in src/ksp/pc/impls/gamg/geo.c
PCSetCoordinates_HYPRE in src/ksp/pc/impls/hypre/hypre.c
PCSetCoordinates_ML in src/ksp/pc/impls/ml/ml.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages