MatColoringGetDistance#

Gets the distance of the coloring

Synopsis#

#include "petscmat.h"  
PetscErrorCode MatColoringGetDistance(MatColoring mc, PetscInt *dist)

Logically Collective

Input Parameter#

Output Parameter#

  • dist - the current distance being used for the coloring.

Note#

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.

See Also#

MatColoring, MatColoringSetDistance(), 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