MatKAIJSetS — PETSc 3.21.4 documentation

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# MatKAIJSetS

Set the `S` matrix describing the shift action of the `MATKAIJ` matrix

## Synopsis

    #include "petscmat.h"
    PetscErrorCode MatKAIJSetS(Mat A, PetscInt p, PetscInt q, const PetscScalar S[])

Logically Collective; the entire `S` is stored independently on all processes.

## Input Parameters

- A - the `MATKAIJ` matrix

- p - the number of rows in `S`

- q - the number of columns in `S`

- S - the S matrix, in form of a scalar array in column-major format

## Notes

The dimensions `p` and `q` must match those of the transformation matrix `T` associated with the `MATKAIJ` matrix.

The `S` matrix is copied, so the user can destroy this array.

## See Also

Matrices, `Mat`, `MATKAIJ`, `MatKAIJGetS()`, `MatKAIJSetT()`, `MatKAIJSetAIJ()`

## Level

advanced

## Location

src/mat/impls/kaij/kaij.c

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