petsc-3.9.4 2018-09-11
MatPartitioningApply
Gets a partitioning for a matrix.
Synopsis
#include "petscmat.h"
PetscErrorCode MatPartitioningApply(MatPartitioning matp,IS *partitioning)
Collective on Mat
Input Parameters
matp -the matrix partitioning object
Output Parameters
partitioning -the partitioning. For each local node this tells the processor
number that that node is assigned to.
Options Database Keys
To specify the partitioning through the options database, use one of
the following
-mat_partitioning_type parmetis, -mat_partitioning current
To see the partitioning result
-mat_partitioning_view
The user can define additional partitionings; see MatPartitioningRegister().
Keywords
matrix, get, partitioning
See Also
MatPartitioningRegister(), MatPartitioningCreate(),
MatPartitioningDestroy(), MatPartitioningSetAdjacency(), ISPartitioningToNumbering(),
ISPartitioningCount()
Level
beginner
Location
src/mat/partition/partition.c
Examples
src/mat/examples/tutorials/ex11.c.html
src/mat/examples/tutorials/ex15.c.html
src/mat/examples/tutorials/ex17.c.html
src/ksp/ksp/examples/tutorials/ex64.c.html
Implementations
MatPartitioningApply_Chaco in src/mat/partition/impls/chaco/chaco.c
MatPartitioningApply_Hierarchical in src/mat/partition/impls/hierarchical/hierarchical.c
MatPartitioningApply_Party in src/mat/partition/impls/party/party.c
MatPartitioningApply_Parmetis in src/mat/partition/impls/pmetis/pmetis.c
MatPartitioningApply_PTScotch in src/mat/partition/impls/scotch/scotch.c
Index of all MatOrderings routines
Table of Contents for all manual pages
Index of all manual pages