MatInvertVariableBlockDiagonal#
Inverts the point block diagonal entries.
Synopsis#
#include "petscmat.h" 
PetscErrorCode MatInvertVariableBlockDiagonal(Mat mat, PetscInt nblocks, const PetscInt bsizes[], PetscScalar values[])
Collective; No Fortran Support
Input Parameters#
- mat - the matrix 
- nblocks - the number of blocks on the process, set with - MatSetVariableBlockSizes()
- bsizes - the size of each block on the process, set with - MatSetVariableBlockSizes()
Output Parameter#
- values - the block inverses in column major order (FORTRAN-like) 
Notes#
Use MatInvertBlockDiagonal() if all blocks have the same size
The blocks never overlap between two MPI processes, use MatInvertVariableBlockEnvelope() for that case
See Also#
Matrices, Mat, MatInvertBlockDiagonal(), MatSetVariableBlockSizes(), MatInvertVariableBlockEnvelope()
Level#
advanced
Location#
Implementations#
MatInvertVariableBlockDiagonal_MPIAIJ() in src/mat/impls/aij/mpi/mpiaij.c
MatInvertVariableBlockDiagonal_SeqAIJ() in src/mat/impls/aij/seq/aij.c
MatInvertVariableBlockDiagonal_SeqAIJKokkos() in src/mat/impls/aij/seq/kokkos/aijkok.kokkos.cxx
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages