petsc-3.13.6 2020-09-29
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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 AIJ matrix describing the action on blocks
dof - the block size (number of components per node)

Output Parameter

maij -the new MAIJ matrix

Operations provided

MatMult- . MatMultTranspose
MatMultAdd- . MatMultTransposeAdd
MatView-

See Also

MatMAIJGetAIJ(), MatMAIJRedimension(), MATMAIJ

Level

advanced

Location

src/mat/impls/maij/maij.c

Examples

src/snes/tutorials/ex48.c.html

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