MatPartitioningSetPartitionWeights#
Sets the weights for each partition.
Synopsis#
#include "petscmat.h"
PetscErrorCode MatPartitioningSetPartitionWeights(MatPartitioning part, const PetscReal weights[])
Logically Collective
Input Parameters#
part - the partitioning context
weights - An array of size nparts that is used to specify the fraction of vertex weight that should be distributed to each sub-domain for the balance constraint. If all of the sub-domains are to be of the same size, then each of the nparts elements should be set to a value of 1/nparts. Note that the sum of all of the weights should be one.
Note#
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().
See Also#
Matrices, Mat, MatPartitioning, MatPartitioningSetVertexWeights(), MatPartitioningCreate(), MatPartitioningSetType(), MatPartitioningSetVertexWeights()
Level#
beginner
Location#
Index of all MatOrderings routines
Table of Contents for all manual pages
Index of all manual pages