5: #include <petscsf.h>
  6: #include <petsc/private/matimpl.h>

  8: typedef struct {
  9:   Mat        A;             /* the local matrix */
 10:   VecScatter cctx;          /* column scatter */
 11:   VecScatter rctx;          /* row scatter */
 12:   Vec        x,y;           /* work space for matrix vector product */
 13:   PetscBool  pure_neumann;
 14:   PetscSF    sf;
 15:   PetscInt   sf_nroots,sf_nleaves;
 16:   PetscInt   *sf_rootdata,*sf_leafdata;
 17: } Mat_IS;

 19: PETSC_EXTERN PetscErrorCode MatISSetMPIXAIJPreallocation_Private(Mat,Mat,PetscBool);
 20: #endif