forked from bartvdbraak/blender
4f1c674ee0
http://crd.lbl.gov/~xiaoye/SuperLU/ This is a library to solve sparse matrix systems (type A*x=B). It is able to solve large systems very FAST. Only the necessary parts of the library are included to limit file size and compilation time. This means the example files, fortran interface, test files, matlab interface, cblas library, complex number part and build system have been left out. All (gcc) warnings have been fixed too. This library will be used for LSCM UV unwrapping. With this library, LSCM unwrapping can be calculated in a split second, making the unwrapping proces much more interactive. Added OpenNL (Open Numerical Libary): http://www.loria.fr/~levy/OpenNL/ OpenNL is a library to easily construct and solve sparse linear systems. We use a stripped down version, as an interface to SuperLU. This library was kindly given to use by Bruno Levy.
235 lines
9.0 KiB
C
235 lines
9.0 KiB
C
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/*
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* -- SuperLU routine (version 3.0) --
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* Univ. of California Berkeley, Xerox Palo Alto Research Center,
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* and Lawrence Berkeley National Lab.
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* October 15, 2003
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*
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*/
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#ifndef __SUPERLU_sSP_DEFS /* allow multiple inclusions */
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#define __SUPERLU_sSP_DEFS
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/*
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* File name: ssp_defs.h
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* Purpose: Sparse matrix types and function prototypes
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* History:
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*/
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#ifdef _CRAY
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#include <fortran.h>
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#include <string.h>
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#endif
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/* Define my integer type int_t */
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typedef int int_t; /* default */
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#include "Cnames.h"
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#include "supermatrix.h"
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#include "util.h"
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/*
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* Global data structures used in LU factorization -
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*
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* nsuper: #supernodes = nsuper + 1, numbered [0, nsuper].
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* (xsup,supno): supno[i] is the supernode no to which i belongs;
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* xsup(s) points to the beginning of the s-th supernode.
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* e.g. supno 0 1 2 2 3 3 3 4 4 4 4 4 (n=12)
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* xsup 0 1 2 4 7 12
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* Note: dfs will be performed on supernode rep. relative to the new
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* row pivoting ordering
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*
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* (xlsub,lsub): lsub[*] contains the compressed subscript of
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* rectangular supernodes; xlsub[j] points to the starting
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* location of the j-th column in lsub[*]. Note that xlsub
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* is indexed by column.
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* Storage: original row subscripts
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*
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* During the course of sparse LU factorization, we also use
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* (xlsub,lsub) for the purpose of symmetric pruning. For each
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* supernode {s,s+1,...,t=s+r} with first column s and last
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* column t, the subscript set
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* lsub[j], j=xlsub[s], .., xlsub[s+1]-1
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* is the structure of column s (i.e. structure of this supernode).
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* It is used for the storage of numerical values.
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* Furthermore,
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* lsub[j], j=xlsub[t], .., xlsub[t+1]-1
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* is the structure of the last column t of this supernode.
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* It is for the purpose of symmetric pruning. Therefore, the
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* structural subscripts can be rearranged without making physical
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* interchanges among the numerical values.
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*
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* However, if the supernode has only one column, then we
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* only keep one set of subscripts. For any subscript interchange
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* performed, similar interchange must be done on the numerical
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* values.
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*
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* The last column structures (for pruning) will be removed
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* after the numercial LU factorization phase.
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*
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* (xlusup,lusup): lusup[*] contains the numerical values of the
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* rectangular supernodes; xlusup[j] points to the starting
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* location of the j-th column in storage vector lusup[*]
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* Note: xlusup is indexed by column.
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* Each rectangular supernode is stored by column-major
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* scheme, consistent with Fortran 2-dim array storage.
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*
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* (xusub,ucol,usub): ucol[*] stores the numerical values of
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* U-columns outside the rectangular supernodes. The row
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* subscript of nonzero ucol[k] is stored in usub[k].
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* xusub[i] points to the starting location of column i in ucol.
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* Storage: new row subscripts; that is subscripts of PA.
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*/
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typedef struct {
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int *xsup; /* supernode and column mapping */
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int *supno;
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int *lsub; /* compressed L subscripts */
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int *xlsub;
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float *lusup; /* L supernodes */
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int *xlusup;
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float *ucol; /* U columns */
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int *usub;
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int *xusub;
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int nzlmax; /* current max size of lsub */
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int nzumax; /* " " " ucol */
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int nzlumax; /* " " " lusup */
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int n; /* number of columns in the matrix */
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LU_space_t MemModel; /* 0 - system malloc'd; 1 - user provided */
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} GlobalLU_t;
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typedef struct {
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float for_lu;
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float total_needed;
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int expansions;
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} mem_usage_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Driver routines */
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extern void
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sgssv(superlu_options_t *, SuperMatrix *, int *, int *, SuperMatrix *,
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SuperMatrix *, SuperMatrix *, SuperLUStat_t *, int *);
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extern void
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sgssvx(superlu_options_t *, SuperMatrix *, int *, int *, int *,
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char *, float *, float *, SuperMatrix *, SuperMatrix *,
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void *, int, SuperMatrix *, SuperMatrix *,
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float *, float *, float *, float *,
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mem_usage_t *, SuperLUStat_t *, int *);
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/* Supernodal LU factor related */
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extern void
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sCreate_CompCol_Matrix(SuperMatrix *, int, int, int, float *,
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int *, int *, Stype_t, Dtype_t, Mtype_t);
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extern void
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sCreate_CompRow_Matrix(SuperMatrix *, int, int, int, float *,
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int *, int *, Stype_t, Dtype_t, Mtype_t);
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extern void
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sCopy_CompCol_Matrix(SuperMatrix *, SuperMatrix *);
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extern void
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sCreate_Dense_Matrix(SuperMatrix *, int, int, float *, int,
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Stype_t, Dtype_t, Mtype_t);
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extern void
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sCreate_SuperNode_Matrix(SuperMatrix *, int, int, int, float *,
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int *, int *, int *, int *, int *,
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Stype_t, Dtype_t, Mtype_t);
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extern void
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sCopy_Dense_Matrix(int, int, float *, int, float *, int);
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extern void countnz (const int, int *, int *, int *, GlobalLU_t *);
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extern void fixupL (const int, const int *, GlobalLU_t *);
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extern void sallocateA (int, int, float **, int **, int **);
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extern void sgstrf (superlu_options_t*, SuperMatrix*,
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int, int, int*, void *, int, int *, int *,
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SuperMatrix *, SuperMatrix *, SuperLUStat_t*, int *);
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extern int ssnode_dfs (const int, const int, const int *, const int *,
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const int *, int *, int *, GlobalLU_t *);
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extern int ssnode_bmod (const int, const int, float *,
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float *, GlobalLU_t *, SuperLUStat_t*);
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extern void spanel_dfs (const int, const int, const int, SuperMatrix *,
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int *, int *, float *, int *, int *, int *,
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int *, int *, int *, int *, GlobalLU_t *);
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extern void spanel_bmod (const int, const int, const int, const int,
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float *, float *, int *, int *,
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GlobalLU_t *, SuperLUStat_t*);
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extern int scolumn_dfs (const int, const int, int *, int *, int *, int *,
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int *, int *, int *, int *, int *, GlobalLU_t *);
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extern int scolumn_bmod (const int, const int, float *,
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float *, int *, int *, int,
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GlobalLU_t *, SuperLUStat_t*);
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extern int scopy_to_ucol (int, int, int *, int *, int *,
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float *, GlobalLU_t *);
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extern int spivotL (const int, const float, int *, int *,
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int *, int *, int *, GlobalLU_t *, SuperLUStat_t*);
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extern void spruneL (const int, const int *, const int, const int,
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const int *, const int *, int *, GlobalLU_t *);
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extern void sreadmt (int *, int *, int *, float **, int **, int **);
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extern void sGenXtrue (int, int, float *, int);
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extern void sFillRHS (trans_t, int, float *, int, SuperMatrix *,
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SuperMatrix *);
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extern void sgstrs (trans_t, SuperMatrix *, SuperMatrix *, int *, int *,
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SuperMatrix *, SuperLUStat_t*, int *);
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/* Driver related */
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extern void sgsequ (SuperMatrix *, float *, float *, float *,
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float *, float *, int *);
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extern void slaqgs (SuperMatrix *, float *, float *, float,
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float, float, char *);
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extern void sgscon (char *, SuperMatrix *, SuperMatrix *,
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float, float *, SuperLUStat_t*, int *);
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extern float sPivotGrowth(int, SuperMatrix *, int *,
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SuperMatrix *, SuperMatrix *);
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extern void sgsrfs (trans_t, SuperMatrix *, SuperMatrix *,
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SuperMatrix *, int *, int *, char *, float *,
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float *, SuperMatrix *, SuperMatrix *,
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float *, float *, SuperLUStat_t*, int *);
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extern int sp_strsv (char *, char *, char *, SuperMatrix *,
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SuperMatrix *, float *, SuperLUStat_t*, int *);
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extern int sp_sgemv (char *, float, SuperMatrix *, float *,
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int, float, float *, int);
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extern int sp_sgemm (char *, int, float,
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SuperMatrix *, float *, int, float,
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float *, int);
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/* Memory-related */
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extern int sLUMemInit (fact_t, void *, int, int, int, int, int,
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SuperMatrix *, SuperMatrix *,
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GlobalLU_t *, int **, float **);
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extern void sSetRWork (int, int, float *, float **, float **);
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extern void sLUWorkFree (int *, float *, GlobalLU_t *);
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extern int sLUMemXpand (int, int, MemType, int *, GlobalLU_t *);
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extern float *floatMalloc(int);
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extern float *floatCalloc(int);
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extern int smemory_usage(const int, const int, const int, const int);
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extern int sQuerySpace (SuperMatrix *, SuperMatrix *, mem_usage_t *);
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/* Auxiliary routines */
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extern void sreadhb(int *, int *, int *, float **, int **, int **);
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extern void sCompRow_to_CompCol(int, int, int, float*, int*, int*,
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float **, int **, int **);
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extern void sfill (float *, int, float);
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extern void sinf_norm_error (int, SuperMatrix *, float *);
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extern void PrintPerf (SuperMatrix *, SuperMatrix *, mem_usage_t *,
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float, float, float *, float *, char *);
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/* Routines for debugging */
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extern void sPrint_CompCol_Matrix(char *, SuperMatrix *);
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extern void sPrint_SuperNode_Matrix(char *, SuperMatrix *);
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extern void sPrint_Dense_Matrix(char *, SuperMatrix *);
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extern void print_lu_col(char *, int, int, int *, GlobalLU_t *);
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extern void check_tempv(int, float *);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __SUPERLU_sSP_DEFS */
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