petsc-3.11.4 2019-09-28
MatPartitioningApplyND
Gets a nested dissection partitioning for a matrix.
Synopsis
#include "petscmat.h"
PetscErrorCode MatPartitioningApplyND(MatPartitioning matp,IS *partitioning)
Collective on Mat
Input Parameters
matp -the matrix partitioning object
Output Parameters
partitioning -the partitioning. For each local node, a positive value indicates the processor
number the node has been assigned to. Negative x values indicate the separator level -(x+1).
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
Implementations
MatPartitioningApplyND_Parmetis in src/mat/partition/impls/pmetis/pmetis.c
MatPartitioningApplyND_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