petscmaster 20201018
MatGetNonzeroState
Returns a 64 bit integer representing the current state of nonzeros in the matrix. If the matrix has had no new nonzero locations added to the matrix since the previous call then the value will be the same, otherwise it will be larger
Synopsis
#include "petscmat.h"
PetscErrorCode MatGetNonzeroState(Mat mat,PetscObjectState *state)
Not Collective
Input Parameter
Output Parameter
 state   the current state

Notes
You can only compare states from two different calls to the SAME matrix, you cannot compare calls between
different matrices
Level
intermediate
Location
src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages