
#include <../src/mat/impls/dense/seq/dense.h>

  /*  Data stuctures for basic parallel dense matrix  */

typedef struct {
  PetscInt      nvec;                   /* this is the n size for the vector one multiplies with */
  Mat           A;                      /* local submatrix */
  PetscMPIInt   size;                   /* size of communicator */
  PetscMPIInt   rank;                   /* rank of proc in communicator */ 
  /* The following variables are used for matrix assembly */
  PetscBool     donotstash;             /* Flag indicationg if values should be stashed */
  MPI_Request   *send_waits;            /* array of send requests */
  MPI_Request   *recv_waits;            /* array of receive requests */
  PetscInt      nsends,nrecvs;         /* numbers of sends and receives */
  PetscScalar   *svalues,*rvalues;     /* sending and receiving data */
  PetscInt      rmax;                   /* maximum message length */

  /* The following variables are used for matrix-vector products */

  Vec           lvec;                   /* local vector */
  VecScatter    Mvctx;                  /* scatter context for vector */

  PetscBool     roworiented;            /* if true, row oriented input (default) */
} Mat_MPIDense;

extern PetscErrorCode MatLoad_MPIDense(Mat,PetscViewer);
extern PetscErrorCode MatSetUpMultiply_MPIDense(Mat);
extern PetscErrorCode MatGetSubMatrices_MPIDense(Mat,PetscInt,const IS[],const IS[],MatReuse,Mat *[]);
extern PetscErrorCode MatEqual_MPIDense(Mat,Mat,PetscBool *);
extern PetscErrorCode MatMatMultSymbolic_MPIDense_MPIDense(Mat,Mat,PetscReal,Mat*);
extern PetscErrorCode MatMatMult_MPIAIJ_MPIDense(Mat,Mat,MatReuse,PetscReal,Mat*);
extern PetscErrorCode MatMatMultSymbolic_MPIAIJ_MPIDense(Mat,Mat,PetscReal,Mat*); 
extern PetscErrorCode MatMatMultNumeric_MPIAIJ_MPIDense(Mat,Mat,Mat);
extern PetscErrorCode MatGetFactor_mpidense_petsc(Mat,MatFactorType,Mat *);


