Sets the weights for each partition.


#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.


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()





Index of all MatGraphOperations routines
Table of Contents for all manual pages
Index of all manual pages