/*
     Include file for the matrix component of PETSc
*/
#ifndef __MAT_PACKAGE
#define __MAT_PACKAGE
#include "vec.h"

#define MAT_COOKIE PETSC_COOKIE+5

typedef struct _Mat*           Mat;
typedef struct _MatScatterCtx* MatScatterCtx;

typedef enum { MATSAME=-1, MATDENSE, MATAIJ, MATMPIAIJ, MATSHELL, MATROW, 
               MATMPIROW, MATMPIROW_BS, MATBDIAG, MATMPIBDIAG } MatType;

extern int MatCreateSequentialDense(MPI_Comm,int,int,Mat*);
extern int MatCreateSequentialAIJ(MPI_Comm,int,int,int,int *,Mat*);
extern int MatCreateMPIAIJ(MPI_Comm,int,int,int,int,int,int*,int,int*,Mat*); 
extern int MatCreateSequentialRow(MPI_Comm,int,int,int,int *,Mat*);
extern int MatCreateMPIRow(MPI_Comm,int,int,int,int,int,int*,int,int*,Mat*); 
extern int MatCreateMPIRowbs(MPI_Comm,int,int,int,int*,void*,Mat*); 
extern int MatCreateSequentialBDiag(MPI_Comm,int,int,int,int,int*,
                                    Scalar**,Mat*); 

extern int MatShellCreate(MPI_Comm,int,int,void *,Mat*);
extern int MatShellSetMult(Mat,int (*)(void*,Vec,Vec));
extern int MatShellSetMultTrans(Mat,int (*)(void*,Vec,Vec));
extern int MatShellSetMultTransAdd(Mat,int (*)(void*,Vec,Vec,Vec));
  
/* ------------------------------------------------------------*/
extern int  MatValidMatrix(Mat);

typedef enum {FLUSH_ASSEMBLY=1,FINAL_ASSEMBLY=0} MatAssemblyType;

extern int MatSetValues(Mat,int,int*,int,int*,Scalar*,InsertMode);
extern int MatAssemblyBegin(Mat,MatAssemblyType);
extern int MatAssemblyEnd(Mat,MatAssemblyType);

typedef enum {ROW_ORIENTED=1,COLUMN_ORIENTED=2,ROWS_SORTED=4,
              COLUMNS_SORTED=8,NO_NEW_NONZERO_LOCATIONS=16,
              YES_NEW_NONZERO_LOCATIONS=32} MatOption;

extern int MatSetOption(Mat,MatOption);

extern int MatGetValues(Mat,int,int*,int,int*,Scalar*);
extern int MatGetRow(Mat,int,int *,int **,Scalar**);
extern int MatRestoreRow(Mat,int,int *,int **,Scalar**);
extern int MatGetCol(Mat,int,int *,int **,Scalar**);
extern int MatRestoreCol(Mat,int,int *,int **,Scalar**);
extern int MatGetArray(Mat,Scalar **);
extern int MatMult(Mat,Vec,Vec);
extern int MatMultAdd(Mat,Vec,Vec,Vec);
extern int MatMultTrans(Mat,Vec,Vec);
extern int MatMultTransAdd(Mat,Vec,Vec,Vec);

typedef enum {ORDER_NATURAL=0,ORDER_ND=1,ORDER_1WD=2,ORDER_RCM=3,
              ORDER_QMD=4} MatOrdering;

extern int MatGetReordering(Mat,MatOrdering,IS*,IS*);

extern int MatLUFactor(Mat,IS,IS);
extern int MatCholeskyFactor(Mat,IS);
extern int MatLUFactorSymbolic(Mat,IS,IS,Mat*);
extern int MatILUFactorSymbolic(Mat,IS,IS,int,Mat*);
extern int MatCholeskyFactorSymbolic(Mat,IS,Mat*);
extern int MatIncompleteCholeskyFactorSymbolic(Mat,IS,int,Mat*);
extern int MatLUFactorNumeric(Mat,Mat*);
extern int MatCholeskyFactorNumeric(Mat,Mat*);

extern int MatSolve(Mat,Vec,Vec);
extern int MatSolveAdd(Mat,Vec,Vec,Vec);
extern int MatSolveTrans(Mat,Vec,Vec);
extern int MatSolveTransAdd(Mat,Vec,Vec,Vec);

typedef enum {SOR_FORWARD_SWEEP=1,SOR_BACKWARD_SWEEP=2,SOR_SYMMETRIC_SWEEP=3,
              SOR_LOCAL_FORWARD_SWEEP=4,SOR_LOCAL_BACKWARD_SWEEP=8,
              SOR_LOCAL_SYMMETRIC_SWEEP=12,SOR_ZERO_INITIAL_GUESS=16,
              SOR_EISENSTAT=32,SOR_APPLY_UPPER=64,SOR_APPLY_LOWER=128
              } MatSORType;

extern int MatRelax(Mat,Vec,double,MatSORType,double,int,Vec);

extern int MatConvert(Mat,MatType,Mat*);
extern int MatView(Mat,Viewer);
#include <stdio.h>

typedef enum {MAT_LOCAL=1,MAT_GLOBAL_MAX=2,MAT_GLOBAL_SUM=3} MatInfoType;

extern int MatGetInfo(Mat,MatInfoType,int*,int*,int*);
extern int MatGetDiagonal(Mat,Vec);
extern int MatTranspose(Mat);
extern int MatScale(Mat,Vec,Vec);
extern int MatEqual(Mat,Mat);
extern int MatScatterBegin(Mat,IS,IS,Mat,IS,IS,InsertMode,MatScatterCtx*);
extern int MatScatterEnd(Mat,IS,IS,Mat,IS,IS,InsertMode,MatScatterCtx*);

typedef enum {NORM_1=1,NORM_2=2,NORM_FROBENIUS=3,NORM_INFINITY=4} MatNormType;
extern int MatNorm(Mat,MatNormType,double *);

extern int MatZeroEntries(Mat);
extern int MatZeroRows(Mat,IS,Scalar*);
extern int MatZeroColumns(Mat,IS,Scalar*);

extern int MatDestroy(Mat);

extern int MatGetSize(Mat,int*,int*);
extern int MatGetLocalSize(Mat,int*,int*);
extern int MatGetOwnershipRange(Mat,int*,int*);

extern int MatCreateInitialMatrix(MPI_Comm,int,int,Mat*);

extern int MatGetSubMatrix(Mat,IS,IS,Mat*);
extern int MatGetSubMatrixInPlace(Mat,IS,IS);
#endif