petsc-3.6.2 2015-10-02
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# MatPartitioningChacoSetEigenNumber

Sets the number of eigenvectors to compute during partitioning.

### Synopsis

    #include "petscmat.h"
    PetscErrorCode MatPartitioningChacoSetEigenNumber(MatPartitioning part,PetscInt num)

Collective on MatPartitioning

### Input Parameters

| part | - the partitioning context
| num | - the number of eigenvectors

### Options Database

-mat_partitioning_chaco_eigen_number <n>: Number of eigenvectors - Note: Accepted values are 1, 2 or 3, indicating partitioning by bisection, quadrisection, or octosection.

### See Also

MatPartitioningChacoSetEigenSolver(), MatPartitioningChacoGetEigenTol()

Level:advanced
Location: src/mat/partition/impls/chaco/chaco.c
Index of all MatOrderings routines
Table of Contents for all manual pages
Index of all manual pages