MatFindNonzeroRows#
Locate all rows that are not completely zero in the matrix
Synopsis#
#include "petscmat.h"
PetscErrorCode MatFindNonzeroRows(Mat mat, IS *keptrows)
Input Parameter#
A - the matrix
Output Parameter#
keptrows - the rows that are not completely zero
Note#
keptrows
is set to NULL
if all rows are nonzero.
See Also#
Level#
intermediate
Location#
Implementations#
MatFindNonzeroRows_MPIAIJ in src/mat/impls/aij/mpi/mpiaij.c
MatFindNonzeroRows_SeqAIJ in src/mat/impls/aij/seq/aij.c
Index of all Mat routines
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Index of all manual pages