MatUpdateMPIAIJWithArrays#

updates a MATMPIAIJ matrix using arrays that contain in standard CSR format for the local rows. Only the numerical values are updated the other arrays must be identical to what was passed from MatCreateMPIAIJWithArrays()

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatUpdateMPIAIJWithArrays(Mat mat, PetscInt m, PetscInt n, PetscInt M, PetscInt N, const PetscInt Ii[], const PetscInt J[], const PetscScalar v[])

Deprecated: Use MatUpdateMPIAIJWithArray()

Collective

Input Parameters#

  • mat - the matrix

  • m - number of local rows (Cannot be PETSC_DECIDE)

  • n - This value should be the same as the local size used in creating the x vector for the matrix-vector product y = Ax. (or PETSC_DECIDE to have calculated if N is given) For square matrices n is almost always m.

  • M - number of global rows (or PETSC_DETERMINE to have calculated if m is given)

  • N - number of global columns (or PETSC_DETERMINE to have calculated if n is given)

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

  • J - column indices

  • v - matrix values

See Also#

Matrices, Mat, MATMPIAIJ, MatCreate(), MatCreateSeqAIJ(), MatSetValues(), MatMPIAIJSetPreallocation(), MatMPIAIJSetPreallocationCSR(), MATMPIAIJ, MatCreateAIJ(), MatCreateMPIAIJWithSplitArrays(), MatUpdateMPIAIJWithArrays(), MatUpdateMPIAIJWithArray()

Level#

deprecated

Location#

src/mat/impls/aij/mpi/mpiaij.c

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