MatPartitioningSetVertexWeights

Sets the weights for vertices for a partitioning.

Synopsis

#include "petscmat.h" 
PetscErrorCode MatPartitioningSetVertexWeights(MatPartitioning part, const PetscInt weights[])

Logically Collective

Input Parameters

• part - the partitioning context

• weights - the weights, on each process this array must have the same size as the number of local rows times the value passed with MatPartitioningSetNumberVertexWeights() or 1 if that is not provided

Notes

The array weights is freed by PETSc so the user should not free the array. In C/C++ the array must be obtained with a call to PetscMalloc(), not malloc().

The weights may not be used by some partitioners

See Also

Matrices, Mat, MatPartitioning, MatPartitioningCreate(), MatPartitioningSetType(), MatPartitioningSetPartitionWeights(), MatPartitioningSetNumberVertexWeights()

Level

beginner

Location

src/mat/partition/partition.c

Examples

src/mat/tutorials/ex15.c

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