petsc-3.14.5 2021-03-03
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# MatMissingDiagonal

Determine if sparse matrix is missing a diagonal entry (or block entry for BAIJ matrices)

### Synopsis

    #include "petscmat.h"
    PetscErrorCode MatMissingDiagonal(Mat mat,PetscBool *missing,PetscInt *dd)

Not Collective

### Input Parameter

| mat | - the matrix

### Output Parameters

| missing | - is any diagonal missing
| dd | - first diagonal entry that is missing (optional) on this process

### See Also

MatRealPart()

### Level

advanced

### Location

src/mat/interface/matrix.c

### Implementations

MatMissingDiagonal_MPIAIJ in src/mat/impls/aij/mpi/mpiaij.c
MatMissingDiagonal_SeqAIJ in src/mat/impls/aij/seq/aij.c
MatMissingDiagonal_MPIBAIJ in src/mat/impls/baij/mpi/mpibaij.c
MatMissingDiagonal_SeqBAIJ in src/mat/impls/baij/seq/baij.c
MatMissingDiagonal_ConstantDiagonal in src/mat/impls/cdiagonal/cdiagonal.c
MatMissingDiagonal_MPIDense in src/mat/impls/dense/mpi/mpidense.c
MatMissingDiagonal_SeqDense in src/mat/impls/dense/seq/dense.c
MatMissingDiagonal_Elemental in src/mat/impls/elemental/matelem.cxx
MatMissingDiagonal_HYPRE in src/mat/impls/hypre/mhypre.c
MatMissingDiagonal_IS in src/mat/impls/is/matis.c
MatMissingDiagonal_Nest in src/mat/impls/nest/matnest.c
MatMissingDiagonal_MPISBAIJ in src/mat/impls/sbaij/mpi/mpisbaij.c
MatMissingDiagonal_SeqSBAIJ in src/mat/impls/sbaij/seq/sbaij.c
MatMissingDiagonal_ScaLAPACK in src/mat/impls/scalapack/matscalapack.c
MatMissingDiagonal_MPISELL in src/mat/impls/sell/mpi/mpisell.c
MatMissingDiagonal_SeqSELL in src/mat/impls/sell/seq/sell.c
MatMissingDiagonal_Shell in src/mat/impls/shell/shell.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages