MatFindZeroDiagonals#

Finds all the rows of a matrix that have zero or no diagonal entry in the matrix

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatFindZeroDiagonals(Mat mat, IS *is)

Collective

Input Parameter#

  • mat - the matrix

Output Parameter#

  • is - if any rows have zero diagonals this contains the list of them

See Also#

Matrices, Mat, MatMultTranspose(), MatMultAdd(), MatMultTransposeAdd()

Level#

developer

Location#

src/mat/interface/matrix.c

Implementations#

MatFindZeroDiagonals_MPIAIJ() in src/mat/impls/aij/mpi/mpiaij.c
MatFindZeroDiagonals_SeqAIJ() in src/mat/impls/aij/seq/aij.c


Index of all Mat routines
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Index of all manual pages