petsc-3.14.6 2021-03-30

MatKAIJGetSRead

Get a read-only pointer to the S matrix describing the shift action of the KAIJ matrix

#include "petscmat.h" 
PetscErrorCode MatKAIJGetSRead(Mat A,PetscInt *m,PetscInt *n,const PetscScalar **S)

Not Collective; the entire S is stored and returned independently on all processes.

- the KAIJ matrix

	m	- the number of rows in S
	n	- the number of columns in S
	S	- the S matrix, in form of a scalar array in column-major format

Note: All output parameters are optional (pass NULL or PETSC_IGNORE if not desired)

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