petsc-3.9.4 2018-09-11
PCGAMGFilterGraph
filter (remove zero and possibly small values from the) graph and make it symmetric if requested
Synopsis
#include "petscpc.h"
PetscErrorCode PCGAMGFilterGraph(Mat *a_Gmat,PetscReal vfilter,PetscBool symm)
Collective on Mat
Input Parameter
| a_Gmat | - the graph
|
| vfilter | - threshold paramter [0,1)
|
| symm | - make the result symmetric
|
Notes: This is called before graph coarsers are called.
See Also
PCGAMGSetThreshold()
Level
developer
Location
src/ksp/pc/impls/gamg/util.c
Index of all PC routines
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Index of all manual pages