petsc-master 2014-11-26
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MatColoringSetDistance

Sets the distance of the coloring

Synopsis

#include "petscmat.h"  
PetscErrorCode MatColoringSetDistance(MatColoring mc,PetscInt dist)
Logically Collective on MatColoring

Input Parameter

mc - the MatColoring context dist - the distance the coloring should compute

Notes: The distance of the coloring denotes the minimum number of edges in the graph induced by the matrix any two vertices of the same color are. Distance-1 colorings are the classical coloring, where no two vertices of the same color are adjacent. distance-2 colorings are useful for the computation of Jacobians.

Keywords

Coloring, distance, Jacobian

See Also

MatColoringGetDistance(), MatColoringApply()

Level:beginner
Location:
src/mat/color/interface/matcoloring.c
Index of all MatOrderings routines
Table of Contents for all manual pages
Index of all manual pages