MatColoringSetDistance

Sets the distance of the coloring

Synopsis

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

Logically Collective

Input Parameters

• mc - the MatColoring context

• dist - the distance the coloring should compute

Options Database Key

• -mat_coloring_type - the type of coloring algorithm used. See MatColoringType.

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, MatColoringSetFromOptions(), MatColoringGetDistance(), MatColoringApply()

Level

beginner

Location

src/mat/graphops/color/interface/matcoloring.c

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Index of all MatGraphOperations routines
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Index of all manual pages