MatInvertBlockDiagonal#
Inverts the block diagonal entries.
Synopsis#
#include "petscmat.h"
PetscErrorCode MatInvertBlockDiagonal(Mat mat, const PetscScalar **values)
Collective; No Fortran Support
Input Parameter#
mat - the matrix
Output Parameter#
values - the block inverses in column major order (FORTRAN-like)
Notes#
The size of the blocks is determined by the block size of the matrix.
The blocks never overlap between two MPI ranks, use MatInvertVariableBlockEnvelope() for that case
The blocks all have the same size, use MatInvertVariableBlockDiagonal() for variable block size
See Also#
Matrices, Mat, MatInvertVariableBlockEnvelope(), MatInvertBlockDiagonalMat()
Level#
advanced
Location#
Examples#
Implementations#
MatInvertBlockDiagonal_MPIAIJ in src/mat/impls/aij/mpi/mpiaij.c
MatInvertBlockDiagonal_SeqAIJ in src/mat/impls/aij/seq/aij.c
MatInvertBlockDiagonal_MPIBAIJ in src/mat/impls/baij/mpi/mpibaij.c
MatInvertBlockDiagonal_SeqBAIJ in src/mat/impls/baij/seq/baij.c
MatInvertBlockDiagonal_IS in src/mat/impls/is/matis.c
MatInvertBlockDiagonal_SeqKAIJ in src/mat/impls/kaij/kaij.c
MatInvertBlockDiagonal_MPIKAIJ in src/mat/impls/kaij/kaij.c
MatInvertBlockDiagonal_MPISELL in src/mat/impls/sell/mpi/mpisell.c
Index of all Mat routines
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Index of all manual pages