xref: /petsc/src/ksp/pc/impls/tfs/tfs.h (revision 03047865b8d8757cf1cf9cda45785c1537b01dc1)
1a4963045SJacob Faibussowitsch #pragma once
26497c311SBarry Smith #if defined(__GNUC__) || defined(__clang__)
36497c311SBarry Smith   #pragma GCC diagnostic ignored "-Wconversion"
46497c311SBarry Smith #endif
57758a8cdSBarry Smith 
6*21789920SBarry Smith /*
77758a8cdSBarry Smith 
87758a8cdSBarry Smith Author: Henry M. Tufo III
97758a8cdSBarry Smith 
107758a8cdSBarry Smith e-mail: hmt@cs.brown.edu
117758a8cdSBarry Smith 
127758a8cdSBarry Smith snail-mail:
137758a8cdSBarry Smith Division of Applied Mathematics
147758a8cdSBarry Smith Brown University
157758a8cdSBarry Smith Providence, RI 02912
167758a8cdSBarry Smith 
177758a8cdSBarry Smith Last Modification:
187758a8cdSBarry Smith 6.21.97
197758a8cdSBarry Smith 
207758a8cdSBarry Smith File Description:
21*21789920SBarry Smith */
22c6db04a5SJed Brown #include <petscsys.h>
23c6db04a5SJed Brown #include <petscblaslapack.h>
247758a8cdSBarry Smith 
257758a8cdSBarry Smith #define X  0
267758a8cdSBarry Smith #define Y  1
277758a8cdSBarry Smith #define Z  2
287758a8cdSBarry Smith #define XY 3
297758a8cdSBarry Smith #define XZ 4
307758a8cdSBarry Smith #define YZ 5
317758a8cdSBarry Smith 
327758a8cdSBarry Smith #define THRESH      0.2
337758a8cdSBarry Smith #define N_HALF      4096
347758a8cdSBarry Smith #define PRIV_BUF_SZ 45
357758a8cdSBarry Smith 
367758a8cdSBarry Smith /*4096 8192 32768 65536 1048576 */
377758a8cdSBarry Smith #define MAX_MSG_BUF 32768
387758a8cdSBarry Smith 
397758a8cdSBarry Smith #define FULL    2
407758a8cdSBarry Smith #define PARTIAL 1
417758a8cdSBarry Smith #define NONE    0
427758a8cdSBarry Smith 
437758a8cdSBarry Smith #define BYTE    8
447758a8cdSBarry Smith #define BIT_0   0x1
457758a8cdSBarry Smith #define BIT_1   0x2
467758a8cdSBarry Smith #define BIT_2   0x4
477758a8cdSBarry Smith #define BIT_3   0x8
487758a8cdSBarry Smith #define BIT_4   0x10
497758a8cdSBarry Smith #define BIT_5   0x20
507758a8cdSBarry Smith #define BIT_6   0x40
517758a8cdSBarry Smith #define BIT_7   0x80
521690c2aeSBarry Smith #define TOP_BIT PETSC_INT_MIN
537758a8cdSBarry Smith 
547758a8cdSBarry Smith #define C 0
557758a8cdSBarry Smith 
567758a8cdSBarry Smith #define MAX_VEC     1674
577758a8cdSBarry Smith #define FORMAT      30
587758a8cdSBarry Smith #define MAX_COL_LEN 100
597758a8cdSBarry Smith #define MAX_LINE    FORMAT *MAX_COL_LEN
607758a8cdSBarry Smith #define DELIM       " \n \t"
617758a8cdSBarry Smith #define LINE        12
627758a8cdSBarry Smith #define C_LINE      80
637758a8cdSBarry Smith 
647758a8cdSBarry Smith #define UT       5 /* dump upper 1/2 */
657758a8cdSBarry Smith #define LT       6 /* dump lower 1/2 */
667758a8cdSBarry Smith #define SYMM     8 /* we assume symm and dump upper 1/2 */
677758a8cdSBarry Smith #define NON_SYMM 9
687758a8cdSBarry Smith 
697758a8cdSBarry Smith #define ROW 10
707758a8cdSBarry Smith #define COL 11
717758a8cdSBarry Smith 
727758a8cdSBarry Smith #define EPS  1.0e-14
737758a8cdSBarry Smith #define EPS2 1.0e-07
747758a8cdSBarry Smith 
757758a8cdSBarry Smith #define MPI 1
767758a8cdSBarry Smith #define NX  2
777758a8cdSBarry Smith 
789371c9d4SSatish Balay #define SWAP(a, b) \
79b6555650SPierre Jolivet   do { \
809371c9d4SSatish Balay     temp = (a); \
819371c9d4SSatish Balay     (a)  = (b); \
82b6555650SPierre Jolivet     (b)  = temp; \
83b6555650SPierre Jolivet   } while (0)
849371c9d4SSatish Balay #define P_SWAP(a, b) \
85b6555650SPierre Jolivet   do { \
869371c9d4SSatish Balay     ptr = (a); \
879371c9d4SSatish Balay     (a) = (b); \
88b6555650SPierre Jolivet     (b) = ptr; \
89b6555650SPierre Jolivet   } while (0)
907758a8cdSBarry Smith 
918cda6cd7SBarry Smith #define MAX_FABS(x, y) (PetscAbsScalar(x) > PetscAbsScalar(y)) ? ((PetscScalar)x) : ((PetscScalar)y)
928cda6cd7SBarry Smith #define MIN_FABS(x, y) (PetscAbsScalar(x) < PetscAbsScalar(y)) ? ((PetscScalar)x) : ((PetscScalar)y)
937758a8cdSBarry Smith 
947758a8cdSBarry Smith /* specer's existence ... can be done w/MAX_ABS */
957758a8cdSBarry Smith #define EXISTS(x, y) ((x) == 0.0) ? (y) : (x)
967758a8cdSBarry Smith 
977758a8cdSBarry Smith #define MULT_NEG_ONE(a) (a) *= -1;
987758a8cdSBarry Smith #define NEG(a)          (a) |= BIT_31;
997758a8cdSBarry Smith #define POS(a)          (a) &= INT_MAX;
1007758a8cdSBarry Smith 
101*21789920SBarry Smith /*
1027758a8cdSBarry Smith Author: Henry M. Tufo III
1037758a8cdSBarry Smith 
1047758a8cdSBarry Smith e-mail: hmt@cs.brown.edu
1057758a8cdSBarry Smith 
1067758a8cdSBarry Smith snail-mail:
1077758a8cdSBarry Smith Division of Applied Mathematics
1087758a8cdSBarry Smith Brown University
1097758a8cdSBarry Smith Providence, RI 02912
1107758a8cdSBarry Smith 
1117758a8cdSBarry Smith Last Modification:
1127758a8cdSBarry Smith 6.21.97
113*21789920SBarry Smith */
1147758a8cdSBarry Smith 
1156e4f4d19SBarry Smith typedef PetscErrorCode (*vfp)(void *, void *, PetscInt, ...);
1166b967228SBarry Smith typedef PetscErrorCode (*rbfp)(PetscScalar *, PetscScalar *, PetscInt);
1176b967228SBarry Smith typedef PetscInt (*bfp)(void *, void *, PetscInt *, MPI_Datatype *);
1187758a8cdSBarry Smith 
119*21789920SBarry Smith /*
1207758a8cdSBarry Smith 
1217758a8cdSBarry Smith Author: Henry M. Tufo III
1227758a8cdSBarry Smith 
1237758a8cdSBarry Smith e-mail: hmt@cs.brown.edu
1247758a8cdSBarry Smith 
1257758a8cdSBarry Smith snail-mail:
1267758a8cdSBarry Smith Division of Applied Mathematics
1277758a8cdSBarry Smith Brown University
1287758a8cdSBarry Smith Providence, RI 02912
1297758a8cdSBarry Smith 
1307758a8cdSBarry Smith Last Modification:
1317758a8cdSBarry Smith 6.21.97
132*21789920SBarry Smith */
1335a576424SJed Brown PETSC_INTERN PetscMPIInt PCTFS_my_id;
1345a576424SJed Brown PETSC_INTERN PetscMPIInt PCTFS_num_nodes;
1355a576424SJed Brown PETSC_INTERN PetscMPIInt PCTFS_floor_num_nodes;
1365a576424SJed Brown PETSC_INTERN PetscMPIInt PCTFS_i_log2_num_nodes;
1377758a8cdSBarry Smith 
1386b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_giop(PetscInt *, PetscInt *, PetscInt, PetscInt *);
1396b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_grop(PetscScalar *, PetscScalar *, PetscInt, PetscInt *);
1405a576424SJed Brown PETSC_INTERN PetscErrorCode PCTFS_comm_init(void);
1416b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_giop_hc(PetscInt *, PetscInt *, PetscInt, PetscInt *, PetscInt);
1426b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_grop_hc(PetscScalar *, PetscScalar *, PetscInt, PetscInt *, PetscInt);
1436b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ssgl_radd(PetscScalar *, PetscScalar *, PetscInt, PetscInt *);
1447758a8cdSBarry Smith 
1457758a8cdSBarry Smith #define MSGTAG0 101
1467758a8cdSBarry Smith #define MSGTAG1 1001
1477758a8cdSBarry Smith #define MSGTAG2 76207
1487758a8cdSBarry Smith #define MSGTAG3 100001
1497758a8cdSBarry Smith #define MSGTAG4 163841
1507758a8cdSBarry Smith #define MSGTAG5 249439
1517758a8cdSBarry Smith #define MSGTAG6 10000001
1527758a8cdSBarry Smith 
1537758a8cdSBarry Smith #define NON_UNIFORM 0
1547758a8cdSBarry Smith #define GL_MAX      1
1557758a8cdSBarry Smith #define GL_MIN      2
1567758a8cdSBarry Smith #define GL_MULT     3
1577758a8cdSBarry Smith #define GL_ADD      4
1587758a8cdSBarry Smith #define GL_B_XOR    5
1597758a8cdSBarry Smith #define GL_B_OR     6
1607758a8cdSBarry Smith #define GL_B_AND    7
1617758a8cdSBarry Smith #define GL_L_XOR    8
1627758a8cdSBarry Smith #define GL_L_OR     9
1637758a8cdSBarry Smith #define GL_L_AND    10
1647758a8cdSBarry Smith #define GL_MAX_ABS  11
1657758a8cdSBarry Smith #define GL_MIN_ABS  12
1667758a8cdSBarry Smith #define GL_EXISTS   13
1677758a8cdSBarry Smith 
1686b967228SBarry Smith PETSC_INTERN PetscInt      *PCTFS_ivec_copy(PetscInt *, PetscInt *, PetscInt);
1696b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_zero(PetscInt *, PetscInt);
1706b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_set(PetscInt *, PetscInt, PetscInt);
1717758a8cdSBarry Smith 
1726b967228SBarry Smith PETSC_INTERN PetscInt PCTFS_ivec_lb(PetscInt *, PetscInt);
1736b967228SBarry Smith PETSC_INTERN PetscInt PCTFS_ivec_ub(PetscInt *, PetscInt);
1746b967228SBarry Smith PETSC_INTERN PetscInt PCTFS_ivec_sum(PetscInt *, PetscInt);
1756b967228SBarry Smith PETSC_INTERN vfp      PCTFS_ivec_fct_addr(PetscInt);
1767758a8cdSBarry Smith 
1776ae68b59SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_non_uniform(PetscInt *, PetscInt *, PetscInt, ...);
1786b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_max(PetscInt *, PetscInt *, PetscInt);
1796b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_min(PetscInt *, PetscInt *, PetscInt);
1806b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_mult(PetscInt *, PetscInt *, PetscInt);
1816b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_add(PetscInt *, PetscInt *, PetscInt);
1826b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_xor(PetscInt *, PetscInt *, PetscInt);
1836b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_or(PetscInt *, PetscInt *, PetscInt);
1846b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_and(PetscInt *, PetscInt *, PetscInt);
1856b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_lxor(PetscInt *, PetscInt *, PetscInt);
1866b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_lor(PetscInt *, PetscInt *, PetscInt);
1876b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_land(PetscInt *, PetscInt *, PetscInt);
1886b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_and3(PetscInt *, PetscInt *, PetscInt *, PetscInt);
1897758a8cdSBarry Smith 
1906b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_sort_companion(PetscInt *, PetscInt *, PetscInt);
1916b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_sort(PetscInt *, PetscInt);
1926b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_SMI_sort(void *, void *, PetscInt, PetscInt);
1936b967228SBarry Smith PETSC_INTERN PetscInt       PCTFS_ivec_binary_search(PetscInt, PetscInt *, PetscInt);
1946b967228SBarry Smith PETSC_INTERN PetscInt       PCTFS_ivec_linear_search(PetscInt, PetscInt *, PetscInt);
1957758a8cdSBarry Smith 
1966b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_ivec_sort_companion_hack(PetscInt *, PetscInt **, PetscInt);
1977758a8cdSBarry Smith 
1986e4f4d19SBarry Smith #define SORT_INTEGER 1
1996e4f4d19SBarry Smith #define SORT_INT_PTR 2
2007758a8cdSBarry Smith 
2016b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_rvec_zero(PetscScalar *, PetscInt);
2026b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_rvec_one(PetscScalar *, PetscInt);
2036b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_rvec_set(PetscScalar *, PetscScalar, PetscInt);
2046b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_rvec_copy(PetscScalar *, PetscScalar *, PetscInt);
2056b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_rvec_scale(PetscScalar *, PetscScalar, PetscInt);
2067758a8cdSBarry Smith 
2076b967228SBarry Smith PETSC_INTERN vfp            PCTFS_rvec_fct_addr(PetscInt);
2086b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_rvec_add(PetscScalar *, PetscScalar *, PetscInt);
2096b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_rvec_mult(PetscScalar *, PetscScalar *, PetscInt);
2106b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_rvec_max(PetscScalar *, PetscScalar *, PetscInt);
2116b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_rvec_max_abs(PetscScalar *, PetscScalar *, PetscInt);
2126b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_rvec_min(PetscScalar *, PetscScalar *, PetscInt);
2136b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_rvec_min_abs(PetscScalar *, PetscScalar *, PetscInt);
2146b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_vec_exists(PetscScalar *, PetscScalar *, PetscInt);
2157758a8cdSBarry Smith 
216*21789920SBarry Smith /*
2177758a8cdSBarry Smith Author: Henry M. Tufo III
2187758a8cdSBarry Smith 
2197758a8cdSBarry Smith e-mail: hmt@cs.brown.edu
2207758a8cdSBarry Smith 
2217758a8cdSBarry Smith snail-mail:
2227758a8cdSBarry Smith Division of Applied Mathematics
2237758a8cdSBarry Smith Brown University
2247758a8cdSBarry Smith Providence, RI 02912
2257758a8cdSBarry Smith 
2267758a8cdSBarry Smith Last Modification:
2277758a8cdSBarry Smith 6.21.97
228*21789920SBarry Smith */
2297758a8cdSBarry Smith 
230ca8e9878SJed Brown typedef struct gather_scatter_id *PCTFS_gs_ADT;
2317758a8cdSBarry Smith 
2326b967228SBarry Smith PETSC_INTERN PCTFS_gs_ADT   PCTFS_gs_init(PetscInt *, PetscInt, PetscInt);
2336b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_gs_gop_vec(PCTFS_gs_ADT, PetscScalar *, const char *, PetscInt);
2346b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_gs_gop_hc(PCTFS_gs_ADT, PetscScalar *, const char *, PetscInt);
2356b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_gs_free(PCTFS_gs_ADT);
2366b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_gs_init_msg_buf_sz(PetscInt);
2376b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_gs_init_vec_sz(PetscInt);
2387758a8cdSBarry Smith 
239*21789920SBarry Smith /*
2407758a8cdSBarry Smith Module Name: xxt
2417758a8cdSBarry Smith Module Info: need xxt.{c,h} gs.{c,h} comm.{c,h} ivec.{c,h} error.{c,h}
2427758a8cdSBarry Smith 
2437758a8cdSBarry Smith author:  Henry M. Tufo III
2447758a8cdSBarry Smith e-mail:  hmt@asci.uchicago.edu
2457758a8cdSBarry Smith contact:
2467758a8cdSBarry Smith +--------------------------------+--------------------------------+
2477758a8cdSBarry Smith |MCS Division - Building 221     |Department of Computer Science  |
2487758a8cdSBarry Smith |Argonne National Laboratory     |Ryerson 152                     |
2497758a8cdSBarry Smith |9700 S. Cass Avenue             |The University of Chicago       |
2507758a8cdSBarry Smith |Argonne, IL  60439              |Chicago, IL  60637              |
2517758a8cdSBarry Smith |(630) 252-5354/5986 ph/fx       |(773) 702-6019/8487 ph/fx       |
2527758a8cdSBarry Smith +--------------------------------+--------------------------------+
2537758a8cdSBarry Smith 
2547758a8cdSBarry Smith Last Modification: 3.20.01
255*21789920SBarry Smith */
2567758a8cdSBarry Smith 
2577758a8cdSBarry Smith typedef struct xxt_CDT *xxt_ADT;
2587758a8cdSBarry Smith 
259*21789920SBarry Smith /*
2607758a8cdSBarry Smith Function: XXT_new()
2617758a8cdSBarry Smith 
2627758a8cdSBarry Smith Return: ADT ptr or NULL upon failure.
2637758a8cdSBarry Smith Description: This function allocates and returns an xxt handle
2647758a8cdSBarry Smith Usage: xxt_handle = xxt_new();
265*21789920SBarry Smith */
2665a576424SJed Brown PETSC_INTERN xxt_ADT XXT_new(void);
2677758a8cdSBarry Smith 
268*21789920SBarry Smith /*
2697758a8cdSBarry Smith Function: XXT_free()
2707758a8cdSBarry Smith 
2717758a8cdSBarry Smith Input : pointer to ADT.
2726e4f4d19SBarry Smith 
2737758a8cdSBarry Smith Description: This function frees the storage associated with an xxt handle
2747758a8cdSBarry Smith Usage: XXT_free(xxt_handle);
275*21789920SBarry Smith */
2763ba16761SJacob Faibussowitsch PETSC_INTERN PetscErrorCode XXT_free(xxt_ADT);
2777758a8cdSBarry Smith 
278*21789920SBarry Smith /*
2797758a8cdSBarry Smith Function: XXT_factor
2807758a8cdSBarry Smith 
2817758a8cdSBarry Smith Input : ADT ptr,  and pointer to object
2827758a8cdSBarry Smith Return: 0 on failure, 1 on success
2837758a8cdSBarry Smith Description: This function sets the xxt solver
2847758a8cdSBarry Smith 
2857758a8cdSBarry Smith xxt assumptions: given n rows of global coarse matrix (E_loc) where
2867758a8cdSBarry Smith    o global dofs N = sum_p(n), p=0,P-1
2877758a8cdSBarry Smith    (i.e. row dist. with no dof replication)
2887758a8cdSBarry Smith    (5.21.00 will handle dif replication case)
2897758a8cdSBarry Smith    o m is the number of columns in E_loc (m>=n)
2907758a8cdSBarry Smith    o local2global holds global number of column i (i=0,...,m-1)
2917758a8cdSBarry Smith    o local2global holds global number of row    i (i=0,...,n-1)
2927758a8cdSBarry Smith    o mylocmatvec performs E_loc . x_loc where x_loc is an vector of
2937758a8cdSBarry Smith    length m in 1-1 correspondence with local2global
2947758a8cdSBarry Smith    (note that gs package takes care of communication).
2957758a8cdSBarry Smith    (note do not zero out upper m-n entries!)
2967758a8cdSBarry Smith    o mylocmatvec(void *grid_data, double *in, double *out)
2977758a8cdSBarry Smith 
29815229ffcSPierre Jolivet ML beliefs/usage: move this to ML_XXT_factor routine
2997758a8cdSBarry Smith    o my_ml holds address of ML struct associated w/E_loc, grid_data, grid_tag
3007758a8cdSBarry Smith    o grid_tag, grid_data, my_ml used in
3017758a8cdSBarry Smith       ML_Set_CSolve(my_ml, grid_tag, grid_data, ML_Do_CoarseDirect);
3027758a8cdSBarry Smith    o grid_data used in
3037758a8cdSBarry Smith       A_matvec(grid_data,v,u);
3047758a8cdSBarry Smith 
3057758a8cdSBarry Smith Usage:
306*21789920SBarry Smith */
30738dcbb09SBarry Smith PETSC_INTERN PetscErrorCode XXT_factor(xxt_ADT,                                                  /* prev. allocated xxt  handle */
3086b967228SBarry Smith                                        PetscInt *,                                               /* global column mapping       */
3096b967228SBarry Smith                                        PetscInt,                                                 /* local num rows              */
3106b967228SBarry Smith                                        PetscInt,                                                 /* local num cols              */
3116b967228SBarry Smith                                        PetscErrorCode (*)(void *, PetscScalar *, PetscScalar *), /* b_loc=A_local.x_loc         */
3126b967228SBarry Smith                                        void *);                                                  /* grid data for matvec        */
3137758a8cdSBarry Smith 
314*21789920SBarry Smith /*
3157758a8cdSBarry Smith Function: XXT_solve
3167758a8cdSBarry Smith 
3177758a8cdSBarry Smith Input : ADT ptr, b (rhs)
3187758a8cdSBarry Smith Output: x (soln)
3197758a8cdSBarry Smith Return:
3207758a8cdSBarry Smith Description: This function performs x = E^-1.b
3217758a8cdSBarry Smith Usage:
3227758a8cdSBarry Smith XXT_solve(xxt_handle, double *x, double *b)
3237758a8cdSBarry Smith XXT_solve(xxt_handle, double *x, NULL)
3247758a8cdSBarry Smith assumes x has been initialized to be b
325*21789920SBarry Smith */
32638dcbb09SBarry Smith PETSC_INTERN PetscErrorCode XXT_solve(xxt_ADT, PetscScalar *, PetscScalar *);
3277758a8cdSBarry Smith 
328*21789920SBarry Smith /*
3297758a8cdSBarry Smith Function: XXT_sp_1()
3307758a8cdSBarry Smith 
3317758a8cdSBarry Smith Input : pointer to ADT
3327758a8cdSBarry Smith Output:
3337758a8cdSBarry Smith Return:
3347758a8cdSBarry Smith Description: sets xxt parameter 1 in xxt_handle
3357758a8cdSBarry Smith Usage: implement later
3367758a8cdSBarry Smith 
3377758a8cdSBarry Smith void XXT_sp_1(xxt_handle,parameter 1 value)
338*21789920SBarry Smith */
3397758a8cdSBarry Smith 
340*21789920SBarry Smith /*
3417758a8cdSBarry Smith Module Name: xyt
3427758a8cdSBarry Smith Module Info: need xyt.{c,h} gs.{c,h} comm.{c,h} ivec.{c,h} error.{c,h}
3437758a8cdSBarry Smith 
3447758a8cdSBarry Smith author:  Henry M. Tufo III
3457758a8cdSBarry Smith e-mail:  hmt@asci.uchicago.edu
3467758a8cdSBarry Smith contact:
3477758a8cdSBarry Smith +--------------------------------+--------------------------------+
3487758a8cdSBarry Smith |MCS Division - Building 221     |Department of Computer Science  |
3497758a8cdSBarry Smith |Argonne National Laboratory     |Ryerson 152                     |
3507758a8cdSBarry Smith |9700 S. Cass Avenue             |The University of Chicago       |
3517758a8cdSBarry Smith |Argonne, IL  60439              |Chicago, IL  60637              |
3527758a8cdSBarry Smith |(630) 252-5354/5986 ph/fx       |(773) 702-6019/8487 ph/fx       |
3537758a8cdSBarry Smith +--------------------------------+--------------------------------+
3547758a8cdSBarry Smith 
3557758a8cdSBarry Smith Last Modification: 3.20.01
356*21789920SBarry Smith */
3577758a8cdSBarry Smith 
3587758a8cdSBarry Smith typedef struct xyt_CDT *xyt_ADT;
3597758a8cdSBarry Smith 
360*21789920SBarry Smith /*
3617758a8cdSBarry Smith Function: XYT_new()
3627758a8cdSBarry Smith 
3637758a8cdSBarry Smith Return: ADT ptr or NULL upon failure.
3647758a8cdSBarry Smith Description: This function allocates and returns an xyt handle
3657758a8cdSBarry Smith Usage: xyt_handle = xyt_new();
366*21789920SBarry Smith */
3675a576424SJed Brown PETSC_INTERN xyt_ADT XYT_new(void);
3687758a8cdSBarry Smith 
369*21789920SBarry Smith /*
3707758a8cdSBarry Smith Function: XYT_free()
3717758a8cdSBarry Smith 
3727758a8cdSBarry Smith Input : pointer to ADT.
3737758a8cdSBarry Smith Description: This function frees the storage associated with an xyt handle
3747758a8cdSBarry Smith Usage: XYT_free(xyt_handle);
375*21789920SBarry Smith */
37638dcbb09SBarry Smith PETSC_INTERN PetscErrorCode XYT_free(xyt_ADT);
3777758a8cdSBarry Smith 
378*21789920SBarry Smith /*
3797758a8cdSBarry Smith Function: XYT_factor
3807758a8cdSBarry Smith 
3817758a8cdSBarry Smith Input : ADT ptr,  and pointer to object
3827758a8cdSBarry Smith Output:
3837758a8cdSBarry Smith Return: 0 on failure, 1 on success
3847758a8cdSBarry Smith Description: This function sets the xyt solver
3857758a8cdSBarry Smith 
3867758a8cdSBarry Smith xyt assumptions: given n rows of global coarse matrix (E_loc) where
3877758a8cdSBarry Smith    o global dofs N = sum_p(n), p=0,P-1
3887758a8cdSBarry Smith    (i.e. row dist. with no dof replication)
3897758a8cdSBarry Smith    (5.21.00 will handle dif replication case)
3907758a8cdSBarry Smith    o m is the number of columns in E_loc (m>=n)
3917758a8cdSBarry Smith    o local2global holds global number of column i (i=0,...,m-1)
3927758a8cdSBarry Smith    o local2global holds global number of row    i (i=0,...,n-1)
3937758a8cdSBarry Smith    o mylocmatvec performs E_loc . x_loc where x_loc is an vector of
3947758a8cdSBarry Smith    length m in 1-1 correspondence with local2global
3957758a8cdSBarry Smith    (note that gs package takes care of communication).
3967758a8cdSBarry Smith    (note do not zero out upper m-n entries!)
3977758a8cdSBarry Smith    o mylocmatvec(void *grid_data, double *in, double *out)
3987758a8cdSBarry Smith 
39915229ffcSPierre Jolivet ML beliefs/usage: move this to ML_XYT_factor routine
4007758a8cdSBarry Smith    o my_ml holds address of ML struct associated w/E_loc, grid_data, grid_tag
4017758a8cdSBarry Smith    o grid_tag, grid_data, my_ml used in
4027758a8cdSBarry Smith       ML_Set_CSolve(my_ml, grid_tag, grid_data, ML_Do_CoarseDirect);
4037758a8cdSBarry Smith    o grid_data used in
4047758a8cdSBarry Smith       A_matvec(grid_data,v,u);
4057758a8cdSBarry Smith 
4067758a8cdSBarry Smith Usage:
407*21789920SBarry Smith */
40838dcbb09SBarry Smith PETSC_INTERN PetscErrorCode XYT_factor(xyt_ADT,                                                  /* prev. allocated xyt  handle */
4096b967228SBarry Smith                                        PetscInt *,                                               /* global column mapping       */
4106b967228SBarry Smith                                        PetscInt,                                                 /* local num rows              */
4116b967228SBarry Smith                                        PetscInt,                                                 /* local num cols              */
4126b967228SBarry Smith                                        PetscErrorCode (*)(void *, PetscScalar *, PetscScalar *), /* b_loc=A_local.x_loc         */
4136b967228SBarry Smith                                        void *);                                                  /* grid data for matvec        */
4147758a8cdSBarry Smith 
415*21789920SBarry Smith /*
4167758a8cdSBarry Smith Function: XYT_solve
4177758a8cdSBarry Smith 
4187758a8cdSBarry Smith Input : ADT ptr, b (rhs)
4197758a8cdSBarry Smith Output: x (soln)
4207758a8cdSBarry Smith Return:
4217758a8cdSBarry Smith Description: This function performs x = E^-1.b
4227758a8cdSBarry Smith Usage: XYT_solve(xyt_handle, double *x, double *b)
423*21789920SBarry Smith */
42438dcbb09SBarry Smith PETSC_INTERN PetscErrorCode XYT_solve(xyt_ADT, PetscScalar *, PetscScalar *);
4257758a8cdSBarry Smith 
426*21789920SBarry Smith /*
4277758a8cdSBarry Smith Function: XYT_stats
4287758a8cdSBarry Smith 
4297758a8cdSBarry Smith Input : handle
430*21789920SBarry Smith */
43138dcbb09SBarry Smith PETSC_INTERN PetscErrorCode XYT_stats(xyt_ADT);
4327758a8cdSBarry Smith 
433*21789920SBarry Smith /*
4347758a8cdSBarry Smith 
4357758a8cdSBarry Smith Author: Henry M. Tufo III
4367758a8cdSBarry Smith 
4377758a8cdSBarry Smith e-mail: hmt@cs.brown.edu
4387758a8cdSBarry Smith 
4397758a8cdSBarry Smith snail-mail:
4407758a8cdSBarry Smith Division of Applied Mathematics
4417758a8cdSBarry Smith Brown University
4427758a8cdSBarry Smith Providence, RI 02912
4437758a8cdSBarry Smith 
4447758a8cdSBarry Smith Last Modification:
4457758a8cdSBarry Smith 11.21.97
446*21789920SBarry Smith */
4476b967228SBarry Smith PETSC_INTERN PetscInt       PCTFS_div_ceil(PetscInt, PetscInt);
4486b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_set_bit_mask(PetscInt *, PetscInt, PetscInt);
4496b967228SBarry Smith PETSC_INTERN PetscInt       PCTFS_len_bit_mask(PetscInt);
4506b967228SBarry Smith PETSC_INTERN PetscInt       PCTFS_ct_bits(char *, PetscInt);
4516b967228SBarry Smith PETSC_INTERN PetscErrorCode PCTFS_bm_to_proc(char *, PetscInt, PetscInt *);
4526b967228SBarry Smith PETSC_INTERN PetscInt       PCTFS_len_buf(PetscInt, PetscInt);
453