MatPartitioningApplyND#

Gets a nested dissection partitioning for a matrix.

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatPartitioningApplyND(MatPartitioning matp, IS *partitioning)

Collective

Input Parameter#

matp - the matrix partitioning object

Output Parameter#

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).

Note#

The user can define additional partitionings; see MatPartitioningRegister().

See Also#

Matrices, Mat, MatPartitioningApplyND(), MatPartitioningRegister(), MatPartitioningCreate(), MatPartitioningDestroy(), MatPartitioningSetAdjacency(), ISPartitioningToNumbering(), ISPartitioningCount()

Level#

intermediate

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
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Index of all manual pages