MatRestoreRowIJF90#

restores the compressed row storage i and j indices for the local rows of a sparse matrix obtained with MatGetRowIJF90()

Synopsis#

MatRestoreRowIJF90(Mat A, PetscInt shift, PetscBool symmetric, PetscBool inodecompressed, PetscInt n, {PetscInt, pointer :: ia(:)}, {PetscInt, pointer :: ja(:)}, PetscBool done,integer ierr)

Not Collective

Input Parameters#

  • A - the matrix

  • shift - 0 or 1 indicating we want the indices starting at 0 or 1

  • symmetric - PETSC_TRUE or PETSC_FALSE indicating the matrix data structure should be symmetrized inodecompressed - PETSC_TRUE or PETSC_FALSE indicating if the nonzero structure of the inodes or the nonzero elements is wanted. For MATBAIJ matrices the compressed version is always used.

  • n - number of local rows in the (possibly compressed) matrix

  • ia - the row pointers; that is ia[0] = 0, ia[row] = ia[row-1] + number of elements in that row of the matrix

  • ja - the column indices

  • done - indicates if the routine actually worked and returned appropriate ia[] and ja[] arrays; callers are responsible for handling the case when done == PETSC_FALSE and ia and ja are not set

See Also#

Matrices, Routines that Return Fortran Allocatable Arrays, Mat, MATMPIAIJ, MatGetRowIJ(), MatRestoreRowIJ(), MatGetRowIJF90()

Level#

developer

Location#

src/mat/interface/matrix.c

Edit on GitLab

Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages