MatColoringCreateWeights

Create per-row weights and, optionally, a decreasing-order permutation of them for a MatColoring, using the weight scheme set on the MatColoring.

Synopsis

#include "petscmat.h"  
PetscErrorCode MatColoringCreateWeights(MatColoring mc, PetscReal **weights, PetscInt **lperm)

Collective

Input Parameter

• mc - the MatColoring

Output Parameters

• weights - the array of per-row weights, or NULL if not needed

• lperm - the permutation that sorts weights in decreasing order, or NULL if not needed

Note

Both output arrays are allocated by this routine and must be freed by the caller with PetscFree().

See Also

MatColoring, MatColoringWeightType, MatColoringSetWeights(), MatColoringGetDegrees()

Level

developer

Location

src/mat/graphops/color/utils/weights.c

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Index of all MatGraphOperations routines
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