MatCreateMAIJ#

Creates a matrix type providing restriction and interpolation operations for multicomponent problems. It interpolates each component the same way independently. The matrix type is based on MATSEQAIJ for sequential matrices, and MATMPIAIJ for distributed matrices.

Synopsis#

#include "petscmat.h" 
PetscErrorCode MatCreateMAIJ(Mat A, PetscInt dof, Mat *maij)

Collective

Input Parameters#

  • A - the MATAIJ matrix describing the action on blocks

  • dof - the block size (number of components per node)

Output Parameter#

Operations provided#

    MatMult()
    MatMultTranspose()
    MatMultAdd()
    MatMultTransposeAdd()
    MatView()

See Also#

Matrices, Mat, MATAIJ, MATMAIJ, MatMAIJGetAIJ(), MatMAIJRedimension(), MATMAIJ

Level#

advanced

Location#

src/mat/impls/maij/maij.c

Examples#

src/snes/tutorials/ex48.c

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Index of all Mat routines
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Index of all manual pages