1: #pragma once

  3: #include <petscsys.h>

  5: #if defined(PETSC_USE_COMPLEX)
  6:   #define CHOLMOD_SCALAR_TYPE CHOLMOD_COMPLEX
  7: #else
  8:   #define CHOLMOD_SCALAR_TYPE CHOLMOD_REAL
  9: #endif

 11: #if defined(PETSC_USE_64BIT_INDICES)
 12:   #define CHOLMOD_INT_TYPE  CHOLMOD_LONG
 13:   #define cholmod_X_start   cholmod_l_start
 14:   #define cholmod_X_analyze cholmod_l_analyze
 15:   /* the type casts are needed because PetscInt is long long while SuiteSparse_long is long and compilers warn even when they are identical */
 16:   #define cholmod_X_analyze_p(a, b, c, d, f)   cholmod_l_analyze_p(a, (SuiteSparse_long *)b, (SuiteSparse_long *)c, d, f)
 17:   #define cholmod_X_copy                       cholmod_l_copy
 18:   #define cholmod_X_factorize                  cholmod_l_factorize
 19:   #define cholmod_X_finish                     cholmod_l_finish
 20:   #define cholmod_X_free_factor                cholmod_l_free_factor
 21:   #define cholmod_X_free_dense                 cholmod_l_free_dense
 22:   #define cholmod_X_resymbol(a, b, c, d, f, e) cholmod_l_resymbol(a, (SuiteSparse_long *)b, c, d, f, e)
 23:   #define cholmod_X_solve                      cholmod_l_solve
 24:   #define cholmod_X_solve2                     cholmod_l_solve2
 25:   #define cholmod_X_check_sparse               cholmod_l_check_sparse
 26: #else
 27:   #define CHOLMOD_INT_TYPE       CHOLMOD_INT
 28:   #define cholmod_X_start        cholmod_start
 29:   #define cholmod_X_analyze      cholmod_analyze
 30:   #define cholmod_X_analyze_p    cholmod_analyze_p
 31:   #define cholmod_X_copy         cholmod_copy
 32:   #define cholmod_X_factorize    cholmod_factorize
 33:   #define cholmod_X_finish       cholmod_finish
 34:   #define cholmod_X_free_factor  cholmod_free_factor
 35:   #define cholmod_X_free_dense   cholmod_free_dense
 36:   #define cholmod_X_resymbol     cholmod_resymbol
 37:   #define cholmod_X_solve        cholmod_solve
 38:   #define cholmod_X_solve2       cholmod_solve2
 39:   #define cholmod_X_check_sparse cholmod_check_sparse
 40: #endif

 42: EXTERN_C_BEGIN
 43: #include <cholmod.h>
 44: #include <SuiteSparseQR_C.h>
 45: EXTERN_C_END

 47: typedef struct {
 48:   PetscErrorCode (*Wrap)(Mat, PetscBool, cholmod_sparse *, PetscBool *, PetscBool *);
 49:   cholmod_sparse                *matrix;
 50:   cholmod_factor                *factor;
 51:   cholmod_common                *common;
 52:   SuiteSparseQR_C_factorization *spqrfact;
 53:   PetscScalar                    scale;
 54:   PetscBool                      pack;
 55:   PetscBool                      normal;
 56: } Mat_CHOLMOD;

 58: PETSC_INTERN PetscErrorCode CholmodStart(Mat);
 59: PETSC_INTERN PetscErrorCode MatView_CHOLMOD(Mat, PetscViewer);
 60: PETSC_INTERN PetscErrorCode MatCholeskyFactorSymbolic_CHOLMOD(Mat, Mat, IS, const MatFactorInfo *);
 61: PETSC_INTERN PetscErrorCode MatGetInfo_CHOLMOD(Mat, MatInfoType, MatInfo *);
 62: PETSC_INTERN PetscErrorCode MatDestroy_CHOLMOD(Mat);

 64: PETSC_INTERN PetscErrorCode VecWrapCholmod(Vec, PetscInt, cholmod_dense *);
 65: PETSC_INTERN PetscErrorCode VecUnWrapCholmod(Vec, PetscInt, cholmod_dense *);
 66: PETSC_INTERN PetscErrorCode MatDenseWrapCholmod(Mat, PetscInt, cholmod_dense *);
 67: PETSC_INTERN PetscErrorCode MatDenseUnWrapCholmod(Mat, PetscInt, cholmod_dense *);