dsp_defs.h

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/* $Id: dsp_defs.h,v 1.3.2.2 2019/05/28 11:13:02 garloff Exp $ */

/*
 * -- SuperLU routine (version 1.1) --
 * Univ. of California Berkeley, Xerox Palo Alto Research Center,
 * and Lawrence Berkeley National Lab.
 * November 15, 1997
 *
 */
#ifndef __SUPERLU_dSP_DEFS /* allow multiple inclusions */
#define __SUPERLU_dSP_DEFS

/*
 * File name:           dsp_defs.h
 * Purpose:             Sparse matrix types and function prototypes
 * History:
 */
#ifdef _CRAY
#include <fortran.h>
#include <string.h>
#endif
#include "tbci/superlu/Cnames.h"
#include "tbci/superlu/supermatrix.h"


/* No of marker arrays used in the symbolic factorization,
   each of size n */
#define NO_MARKER     3
#define NUM_TEMPV(m,w,t,b)  ( MAX(m, (t + b)*w) )

typedef enum {LUSUP, UCOL, LSUB, USUB} MemType;
typedef enum {HEAD, TAIL}              stack_end_t;
typedef enum {SYSTEM, USER}            LU_space_t;

/*
 * Global data structures used in LU factorization -
 *
 *   nsuper: #supernodes = nsuper + 1, numbered [0, nsuper].
 *   (xsup,supno): supno[i] is the supernode no to which i belongs;
 *      xsup(s) points to the beginning of the s-th supernode.
 *      e.g.   supno 0 1 2 2 3 3 3 4 4 4 4 4   (n=12)
 *              xsup 0 1 2 4 7 12
 *      Note: dfs will be performed on supernode rep. relative to the new
 *            row pivoting ordering
 *
 *   (xlsub,lsub): lsub[*] contains the compressed subscript of
 *      rectangular supernodes; xlsub[j] points to the starting
 *      location of the j-th column in lsub[*]. Note that xlsub
 *      is indexed by column.
 *      Storage: original row subscripts
 *
 *      During the course of sparse LU factorization, we also use
 *      (xlsub,lsub) for the purpose of symmetric pruning. For each
 *      supernode {s,s+1,...,t=s+r} with first column s and last
 *      column t, the subscript set
 *              lsub[j], j=xlsub[s], .., xlsub[s+1]-1
 *      is the structure of column s (i.e. structure of this supernode).
 *      It is used for the storage of numerical values.
 *      Furthermore,
 *              lsub[j], j=xlsub[t], .., xlsub[t+1]-1
 *      is the structure of the last column t of this supernode.
 *      It is for the purpose of symmetric pruning. Therefore, the
 *      structural subscripts can be rearranged without making physical
 *      interchanges among the numerical values.
 *
 *      However, if the supernode has only one column, then we
 *      only keep one set of subscripts. For any subscript interchange
 *      performed, similar interchange must be done on the numerical
 *      values.
 *
 *      The last column structures (for pruning) will be removed
 *      after the numercial LU factorization phase.
 *
 *   (xlusup,lusup): lusup[*] contains the numerical values of the
 *      rectangular supernodes; xlusup[j] points to the starting
 *      location of the j-th column in storage vector lusup[*]
 *      Note: xlusup is indexed by column.
 *      Each rectangular supernode is stored by column-major
 *      scheme, consistent with Fortran 2-dim array storage.
 *
 *   (xusub,ucol,usub): ucol[*] stores the numerical values of
 *      U-columns outside the rectangular supernodes. The row
 *      subscript of nonzero ucol[k] is stored in usub[k].
 *      xusub[i] points to the starting location of column i in ucol.
 *      Storage: new row subscripts; that is subscripts of PA.
 */
typedef struct {
    int     *xsup;    /* supernode and column mapping */
    int     *supno;
    int     *lsub;    /* compressed L subscripts */
    int     *xlsub;
    double  *lusup;   /* L supernodes */
    int     *xlusup;
    double  *ucol;    /* U columns */
    int     *usub;
    int     *xusub;
    int     nzlmax;   /* current max size of lsub */
    int     nzumax;   /*    "    "    "      ucol */
    int     nzlumax;  /*    "    "    "     lusup */
    int     n;        /* number of columns in the matrix */
    LU_space_t MemModel; /* 0 - system malloc'd; 1 - user provided */
} GlobalLU_t;

typedef struct {
    int panel_size;
    int relax;
    double diag_pivot_thresh;
    double drop_tol;
} factor_param_t;

typedef struct {
    float for_lu;
    float total_needed;
    int   expansions;
} mem_usage_t;

#ifdef __cplusplus
extern "C" {
#endif

/* Driver routines */
extern void
dgssv(SuperMatrix *, int *, int *, SuperMatrix *, SuperMatrix *,
        SuperMatrix *, int *);
extern void
dgssvx(char *, char *, char *, SuperMatrix *, factor_param_t *,
       int *, int *, int *, char *, double *, double *,
       SuperMatrix *, SuperMatrix *, void *, int, SuperMatrix *,
       SuperMatrix *, double *, double *, double *,
       double *, mem_usage_t *, int *);

/* Supernodal LU factor related */
extern void
dCreate_CompCol_Matrix(SuperMatrix *, int, int, int, double *,
                       int *, int *, Stype_t, Dtype_t, Mtype_t);
extern void
dCopy_CompCol_Matrix(SuperMatrix *, SuperMatrix *);
extern void
dCreate_Dense_Matrix(SuperMatrix *, int, int, double *, int,
                     Stype_t, Dtype_t, Mtype_t);
extern void
dCreate_SuperNode_Matrix(SuperMatrix *, int, int, int, double *,
                         int *, int *, int *, int *, int *,
                         Stype_t, Dtype_t, Mtype_t);
extern void
dCopy_Dense_Matrix(int, int, double *, int, double *, int);

extern void Destroy_SuperMatrix_Store(SuperMatrix *);
extern void Destroy_CompCol_Matrix(SuperMatrix *);
extern void Destroy_SuperNode_Matrix(SuperMatrix *);
extern void Destroy_CompCol_Permuted(SuperMatrix *);
extern void Destroy_Dense_Matrix(SuperMatrix *);

extern void    dallocateA (int, int, double **, int **, int **);
extern void    StatInit    (int, int);
extern void    StatFree    ();
extern void    get_perm_c(int, SuperMatrix *, int *);
extern void    sp_preorder (char*, SuperMatrix*, int*, int*, SuperMatrix*);
extern int     sp_coletree (int *, int *, int *, int, int, int *);
extern void    dgstrf (char*, SuperMatrix*, double, double, int, int, int*,
                        void *, int, int *, int *,
                        SuperMatrix *, SuperMatrix *, int *);
extern void    relax_snode  (int, int *, int, int *, int *);
extern int     dsnode_dfs (const int, const int, const int *, const int *,
                             const int *, int *, int *, GlobalLU_t *);
extern int     dsnode_bmod (const int, const int, const int, double *,
                              double *, GlobalLU_t *);
extern void    dpanel_dfs (const int, const int, const int, SuperMatrix *,
                           int *, int *, double *, int *, int *, int *,
                           int *, int *, int *, int *, GlobalLU_t *);
extern void    dpanel_bmod (const int, const int, const int, const int,
                           double *, double *, int *, int *,
                           GlobalLU_t *);
extern int     dcolumn_dfs (const int, const int, int *, int *, int *, int *,
                           int *, int *, int *, int *, int *, GlobalLU_t *);
extern int     dcolumn_bmod (const int, const int, double *,
                           double *, int *, int *, int, GlobalLU_t *);
extern int     dcopy_to_ucol (int, int, int *, int *, int *,
                              double *, GlobalLU_t *);
extern int     dpivotL (const int, const double, int *, int *,
                              int *, int *, int *, GlobalLU_t *);
extern void    dpruneL (const int, const int *, const int, const int,
                             const int *, const int *, int *, GlobalLU_t *);
extern void    resetrep_col (const int, const int *, int *);
extern void    countnz (const int, int *, int *, int *, GlobalLU_t *);
extern void    fixupL (const int, const int *, GlobalLU_t *);
extern int     spcoletree (int *, int *, int *, int, int, int *);
extern int     *TreePostorder (int, int *);
extern void    dreadmt (int *, int *, int *, double **, int **, int **);
extern void    dGenXtrue (int, int, double *, int);
extern void    dFillRHS (char *, int, double *, int, SuperMatrix *,
                        SuperMatrix *);
extern void    dgstrs (char *, SuperMatrix *, SuperMatrix *, int *, int *,
                        SuperMatrix *, int *);


/* Driver related */

extern void    dgsequ (SuperMatrix *, double *, double *, double *,
                             double *, double *, int *);
extern void    dlaqgs (SuperMatrix *, double *, double *, double,
                             double, double, char *);
extern void    dgscon (char *, SuperMatrix *, SuperMatrix *,
                        double, double *, int *);
extern double  dPivotGrowth(int, SuperMatrix *, int *,
                            SuperMatrix *, SuperMatrix *);
extern void    dgsrfs (char *, SuperMatrix *, SuperMatrix *,
                        SuperMatrix *, int *, int *, char *, double *,
                        double *, SuperMatrix *, SuperMatrix *,
                        double *, double *, int *);

extern int     sp_dtrsv (char *, char *, char *, SuperMatrix *,
                        SuperMatrix *, double *, int *);
extern int     sp_dgemv (char *, double, SuperMatrix *, double *,
                        int, double, double *, int);

extern int     sp_dgemm (char *, char *, int, int, int, double,
                        SuperMatrix *, double *, int, double,
                        double *, int);

/* Memory-related */
extern void     superlu_abort_and_exit(char*);
extern void    *superlu_malloc (int);
extern void    superlu_free (void*);
extern int     dLUMemInit (char *, void *, int, int, int, int, int,
                             SuperMatrix *, SuperMatrix *,
                             GlobalLU_t *, int **, double **);
extern void    SetIWork (int, int, int, int *, int **, int **, int **,
                         int **, int **, int **, int **);
extern void    dSetRWork (int, int, double *, double **, double **);
extern void    dLUWorkFree (int *, double *, GlobalLU_t *);
extern int     dLUMemXpand (int, int, MemType, int *, GlobalLU_t *);

extern int     *intMalloc (int);
extern int     *intCalloc (int);
extern double  *doubleMalloc(int);
extern double  *doubleCalloc(int);
extern void    *superlu_malloc(int);
extern int     memory_usage();
extern int     dQuerySpace (SuperMatrix *, SuperMatrix *, int,
                                mem_usage_t *);

/* Auxiliary routines */
extern void    dCompRow_to_CompCol(int, int, int, double*, int*, int*,
                                   double **, int **, int **);
extern double  SuperLU_timer_ ();
extern int     sp_ienv (int);
extern int     lsame_ (char *, char *);
extern int     xerbla_ (char *, int *);
extern void    ifill (int *, int, int);
extern void    dfill (double *, int, double);
extern void    inf_norm_error (int, SuperMatrix *, double *);
extern void    snode_profile (int, int *);
extern void    super_stats (int, int *);
extern void    PrintSumm (char *, int, int, int);
extern void    PrintPerf (SuperMatrix *, SuperMatrix *, mem_usage_t *,
                         double, double, double *, double *, char *);

/* Routines for debugging */
extern void    dPrint_CompCol_Matrix(char *, SuperMatrix *);
extern void    dPrint_SuperNode_Matrix(char *, SuperMatrix *);
extern void    dPrint_Dense_Matrix(char *, SuperMatrix *);
extern void    print_lu_col(char *, int, int, int *, GlobalLU_t *);
extern void    print_panel_seg(int, int, int, int, int *, int *);
extern void    check_tempv(int, double *);
extern void    check_repfnz(int, int, int, int *);

#ifdef __cplusplus
  }
#endif

#endif /* __SUPERLU_dSP_DEFS */