petsc-3.13.6 2020-09-29
PetscSFCreateEmbeddedSF
removes edges from all but the selected roots, does not remap indices
Synopsis
#include "petscsf.h"
PetscErrorCode PetscSFCreateEmbeddedSF(PetscSF sf,PetscInt nselected,const PetscInt *selected,PetscSF *esf)
Collective
Input Arguments
| sf | - original star forest
|
| nselected | - number of selected roots on this process
|
| selected | - indices of the selected roots on this process
|
Output Arguments
esf -new star forest
Note
To use the new PetscSF, it may be necessary to know the indices of the leaves that are still participating. This can
be done by calling PetscSFGetGraph().
See Also
PetscSFSetGraph(), PetscSFGetGraph()
Level
advanced
Location
src/vec/is/sf/interface/sf.c
Examples
src/vec/is/sf/tutorials/ex1.c.html
Implementations
PetscSFCreateEmbeddedSF_Alltoall in src/vec/is/sf/impls/basic/alltoall/sfalltoall.c
PetscSFCreateEmbeddedSF_Basic in src/vec/is/sf/impls/basic/sfbasic.c
Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages