petsc-3.11.4 2019-09-28
MatPartitioningImprove
Improves the quality of a given partition.
Synopsis
#include "petscmat.h"
PetscErrorCode MatPartitioningImprove(MatPartitioning matp,IS *partitioning)
Collective on Mat
Input Parameters
matp -the matrix partitioning object
partitioning -the partitioning. For each local node this tells the processor
number that that node is assigned to.
Output Parameters
partitioning -the partitioning. For each local node this tells the processor
number that that node is assigned to.
Options Database Keys
To improve the quality of the partition
-mat_partitioning_improve
Keywords
matrix, improve, partitioning
See Also
MatPartitioningApply(), MatPartitioningCreate(),
MatPartitioningDestroy(), MatPartitioningSetAdjacency(), ISPartitioningToNumbering(),
ISPartitioningCount()
Level
beginner
Location
src/mat/partition/partition.c
Implementations
MatPartitioningImprove_Hierarchical in src/mat/partition/impls/hierarchical/hierarchical.c
MatPartitioningImprove_Parmetis in src/mat/partition/impls/pmetis/pmetis.c
Index of all MatOrderings routines
Table of Contents for all manual pages
Index of all manual pages