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
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Index of all manual pages