#include "petscksp.h" PetscErrorCode KSPGetOperators(KSP ksp,Mat *Amat,Mat *Pmat,MatStructure *flag)Collective on KSP and Mat
|Amat||- the matrix associated with the linear system|
|Pmat||- the matrix to be used in constructing the preconditioner, usually the same as Amat.|
|flag||- flag indicating information about the preconditioner matrix structure during successive linear solves. This flag is ignored the first time a linear system is solved, and thus is irrelevant when solving just one linear system.|
Notes: DOES NOT increase the reference counts of the matrix, so you should NOT destroy them.
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages