1 2 #include <petsc-private/sfimpl.h> /*I "petscsf.h" I*/ 3 4 typedef struct _n_PetscSFBasicPack *PetscSFBasicPack; 5 struct _n_PetscSFBasicPack { 6 void (*Pack)(PetscInt,PetscInt,const PetscInt*,const void*,void*); 7 void (*UnpackInsert)(PetscInt,PetscInt,const PetscInt*,void*,const void*); 8 void (*UnpackAdd)(PetscInt,PetscInt,const PetscInt*,void*,const void*); 9 void (*UnpackMin)(PetscInt,PetscInt,const PetscInt*,void*,const void*); 10 void (*UnpackMax)(PetscInt,PetscInt,const PetscInt*,void*,const void*); 11 void (*UnpackMinloc)(PetscInt,PetscInt,const PetscInt*,void*,const void*); 12 void (*UnpackMaxloc)(PetscInt,PetscInt,const PetscInt*,void*,const void*); 13 void (*UnpackMult)(PetscInt,PetscInt,const PetscInt*,void*,const void *); 14 void (*UnpackLAND)(PetscInt,PetscInt,const PetscInt*,void*,const void *); 15 void (*UnpackBAND)(PetscInt,PetscInt,const PetscInt*,void*,const void *); 16 void (*UnpackLOR)(PetscInt,PetscInt,const PetscInt*,void*,const void *); 17 void (*UnpackBOR)(PetscInt,PetscInt,const PetscInt*,void*,const void *); 18 void (*UnpackLXOR)(PetscInt,PetscInt,const PetscInt*,void*,const void *); 19 void (*UnpackBXOR)(PetscInt,PetscInt,const PetscInt*,void*,const void *); 20 void (*FetchAndInsert)(PetscInt,PetscInt,const PetscInt*,void*,void*); 21 void (*FetchAndAdd)(PetscInt,PetscInt,const PetscInt*,void*,void*); 22 void (*FetchAndMin)(PetscInt,PetscInt,const PetscInt*,void*,void*); 23 void (*FetchAndMax)(PetscInt,PetscInt,const PetscInt*,void*,void*); 24 void (*FetchAndMinloc)(PetscInt,PetscInt,const PetscInt*,void*,void*); 25 void (*FetchAndMaxloc)(PetscInt,PetscInt,const PetscInt*,void*,void*); 26 void (*FetchAndMult)(PetscInt,PetscInt,const PetscInt*,void*,void*); 27 void (*FetchAndLAND)(PetscInt,PetscInt,const PetscInt*,void*,void*); 28 void (*FetchAndBAND)(PetscInt,PetscInt,const PetscInt*,void*,void*); 29 void (*FetchAndLOR)(PetscInt,PetscInt,const PetscInt*,void*,void*); 30 void (*FetchAndBOR)(PetscInt,PetscInt,const PetscInt*,void*,void*); 31 void (*FetchAndLXOR)(PetscInt,PetscInt,const PetscInt*,void*,void*); 32 void (*FetchAndBXOR)(PetscInt,PetscInt,const PetscInt*,void*,void*); 33 34 MPI_Datatype unit; 35 size_t unitbytes; /* Number of bytes in a unit */ 36 PetscInt bs; /* Number of basic units in a unit */ 37 const void *key; /* Array used as key for operation */ 38 char *root; /* Packed root data, contiguous by leaf rank */ 39 char *leaf; /* Packed leaf data, contiguous by root rank */ 40 MPI_Request *requests; /* Array of root requests followed by leaf requests */ 41 PetscSFBasicPack next; 42 }; 43 44 typedef struct { 45 PetscMPIInt tag; 46 PetscInt niranks; /* Number of incoming ranks (ranks accessing my roots) */ 47 PetscMPIInt *iranks; /* Array of ranks that reference my roots */ 48 PetscInt itotal; /* Total number of graph edges referencing my roots */ 49 PetscInt *ioffset; /* Array of length niranks+1 holding offset in irootloc[] for each rank */ 50 PetscInt *irootloc; /* Incoming roots referenced by ranks starting at ioffset[rank] */ 51 PetscSFBasicPack avail; /* One or more entries per MPI Datatype, lazily constructed */ 52 PetscSFBasicPack inuse; /* Buffers being used for transactions that have not yet completed */ 53 } PetscSF_Basic; 54 55 #if !defined(PETSC_HAVE_MPI_TYPE_DUP) /* Danger: type is not reference counted; subject to ABA problem */ 56 PETSC_STATIC_INLINE PetscErrorCode MPI_Type_dup(MPI_Datatype datatype,MPI_Datatype *newtype) 57 { 58 *newtype = datatype; 59 return 0; 60 } 61 #endif 62 63 /* 64 * MPI_Reduce_local is not really useful because it can't handle sparse data and it vectorizes "in the wrong direction", 65 * therefore we pack data types manually. This section defines packing routines for the standard data types. 66 */ 67 68 #define CPPJoin2_exp(a,b) a ## b 69 #define CPPJoin2(a,b) CPPJoin2_exp(a,b) 70 #define CPPJoin3_exp_(a,b,c) a ## b ## _ ## c 71 #define CPPJoin3_(a,b,c) CPPJoin3_exp_(a,b,c) 72 73 /* Basic types without addition */ 74 #define DEF_PackNoInit(type,BS) \ 75 static void CPPJoin3_(Pack_,type,BS)(PetscInt n,PetscInt bs,const PetscInt *idx,const void *unpacked,void *packed) { \ 76 const type *u = (const type*)unpacked; \ 77 type *p = (type*)packed; \ 78 PetscInt i,j,k; \ 79 for (i=0; i<n; i++) \ 80 for (j=0; j<bs; j+=BS) \ 81 for (k=j; k<j+BS; k++) \ 82 p[i*bs+k] = u[idx[i]*bs+k]; \ 83 } \ 84 static void CPPJoin3_(UnpackInsert_,type,BS)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 85 type *u = (type*)unpacked; \ 86 const type *p = (const type*)packed; \ 87 PetscInt i,j,k; \ 88 for (i=0; i<n; i++) \ 89 for (j=0; j<bs; j+=BS) \ 90 for (k=j; k<j+BS; k++) \ 91 u[idx[i]*bs+k] = p[i*bs+k]; \ 92 } \ 93 static void CPPJoin3_(FetchAndInsert_,type,BS)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 94 type *u = (type*)unpacked; \ 95 type *p = (type*)packed; \ 96 PetscInt i,j,k; \ 97 for (i=0; i<n; i++) { \ 98 PetscInt ii = idx[i]; \ 99 for (j=0; j<bs; j+=BS) \ 100 for (k=j; k<j+BS; k++) { \ 101 type t = u[ii*bs+k]; \ 102 u[ii*bs+k] = p[i*bs+k]; \ 103 p[i*bs+k] = t; \ 104 } \ 105 } \ 106 } 107 108 /* Basic types defining addition */ 109 #define DEF_PackAddNoInit(type,BS) \ 110 DEF_PackNoInit(type,BS) \ 111 static void CPPJoin3_(UnpackAdd_,type,BS)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 112 type *u = (type*)unpacked; \ 113 const type *p = (const type*)packed; \ 114 PetscInt i,j,k; \ 115 for (i=0; i<n; i++) \ 116 for (j=0; j<bs; j+=BS) \ 117 for (k=j; k<j+BS; k++) \ 118 u[idx[i]*bs+k] += p[i*bs+k]; \ 119 } \ 120 static void CPPJoin3_(FetchAndAdd_,type,BS)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 121 type *u = (type*)unpacked; \ 122 type *p = (type*)packed; \ 123 PetscInt i,j,k; \ 124 for (i=0; i<n; i++) { \ 125 PetscInt ii = idx[i]; \ 126 for (j=0; j<bs; j+=BS) \ 127 for (k=j; k<j+BS; k++) { \ 128 type t = u[ii*bs+k]; \ 129 u[ii*bs+k] = t + p[i*bs+k]; \ 130 p[i*bs+k] = t; \ 131 } \ 132 } \ 133 } \ 134 static void CPPJoin3_(UnpackMult_,type,BS)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 135 type *u = (type*)unpacked; \ 136 const type *p = (const type*)packed; \ 137 PetscInt i,j,k; \ 138 for (i=0; i<n; i++) \ 139 for (j=0; j<bs; j+=BS) \ 140 for (k=j; k<j+BS; k++) \ 141 u[idx[i]*bs+k] *= p[i*bs+k]; \ 142 } \ 143 static void CPPJoin3_(FetchAndMult_,type,BS)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 144 type *u = (type*)unpacked; \ 145 type *p = (type*)packed; \ 146 PetscInt i,j,k; \ 147 for (i=0; i<n; i++) { \ 148 PetscInt ii = idx[i]; \ 149 for (j=0; j<bs; j+=BS) \ 150 for (k=j; k<j+BS; k++) { \ 151 type t = u[ii*bs+k]; \ 152 u[ii*bs+k] = t * p[i*bs+k]; \ 153 p[i*bs+k] = t; \ 154 } \ 155 } \ 156 } 157 #define DEF_Pack(type,BS) \ 158 DEF_PackAddNoInit(type,BS) \ 159 static void CPPJoin3_(PackInit_,type,BS)(PetscSFBasicPack link) { \ 160 link->Pack = CPPJoin3_(Pack_,type,BS); \ 161 link->UnpackInsert = CPPJoin3_(UnpackInsert_,type,BS); \ 162 link->UnpackAdd = CPPJoin3_(UnpackAdd_,type,BS); \ 163 link->UnpackMult = CPPJoin3_(UnpackMult_,type,BS); \ 164 link->FetchAndInsert = CPPJoin3_(FetchAndInsert_,type,BS); \ 165 link->FetchAndAdd = CPPJoin3_(FetchAndAdd_,type,BS); \ 166 link->FetchAndMult = CPPJoin3_(FetchAndMult_,type,BS); \ 167 link->unitbytes = sizeof(type); \ 168 } 169 /* Comparable types */ 170 #define DEF_PackCmp(type) \ 171 DEF_PackAddNoInit(type,1) \ 172 static void CPPJoin2(UnpackMax_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 173 type *u = (type*)unpacked; \ 174 const type *p = (const type*)packed; \ 175 PetscInt i; \ 176 for (i=0; i<n; i++) { \ 177 type v = u[idx[i]]; \ 178 u[idx[i]] = PetscMax(v,p[i]); \ 179 } \ 180 } \ 181 static void CPPJoin2(UnpackMin_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 182 type *u = (type*)unpacked; \ 183 const type *p = (const type*)packed; \ 184 PetscInt i; \ 185 for (i=0; i<n; i++) { \ 186 type v = u[idx[i]]; \ 187 u[idx[i]] = PetscMin(v,p[i]); \ 188 } \ 189 } \ 190 static void CPPJoin2(FetchAndMax_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 191 type *u = (type*)unpacked; \ 192 type *p = (type*)packed; \ 193 PetscInt i; \ 194 for (i=0; i<n; i++) { \ 195 PetscInt j = idx[i]; \ 196 type v = u[j]; \ 197 u[j] = PetscMax(v,p[i]); \ 198 p[i] = v; \ 199 } \ 200 } \ 201 static void CPPJoin2(FetchAndMin_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 202 type *u = (type*)unpacked; \ 203 type *p = (type*)packed; \ 204 PetscInt i; \ 205 for (i=0; i<n; i++) { \ 206 PetscInt j = idx[i]; \ 207 type v = u[j]; \ 208 u[j] = PetscMin(v,p[i]); \ 209 p[i] = v; \ 210 } \ 211 } \ 212 static void CPPJoin2(PackInit_,type)(PetscSFBasicPack link) { \ 213 link->Pack = CPPJoin3_(Pack_,type,1); \ 214 link->UnpackInsert = CPPJoin3_(UnpackInsert_,type,1); \ 215 link->UnpackAdd = CPPJoin3_(UnpackAdd_,type,1); \ 216 link->UnpackMax = CPPJoin2(UnpackMax_,type); \ 217 link->UnpackMin = CPPJoin2(UnpackMin_,type); \ 218 link->UnpackMult = CPPJoin3_(UnpackMult_,type,1); \ 219 link->FetchAndInsert = CPPJoin3_(FetchAndInsert_,type,1); \ 220 link->FetchAndAdd = CPPJoin3_(FetchAndAdd_ ,type,1); \ 221 link->FetchAndMax = CPPJoin2(FetchAndMax_ ,type); \ 222 link->FetchAndMin = CPPJoin2(FetchAndMin_ ,type); \ 223 link->FetchAndMult = CPPJoin3_(FetchAndMult_,type,1); \ 224 link->unitbytes = sizeof(type); \ 225 } 226 227 /* Logical Types */ 228 #define DEF_PackLog(type) \ 229 static void CPPJoin2(UnpackLAND_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 230 type *u = (type*)unpacked; \ 231 const type *p = (const type*)packed; \ 232 PetscInt i; \ 233 for (i=0; i<n; i++) { \ 234 type v = u[idx[i]]; \ 235 u[idx[i]] = v && p[i]; \ 236 } \ 237 } \ 238 static void CPPJoin2(UnpackLOR_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 239 type *u = (type*)unpacked; \ 240 const type *p = (const type*)packed; \ 241 PetscInt i; \ 242 for (i=0; i<n; i++) { \ 243 type v = u[idx[i]]; \ 244 u[idx[i]] = v || p[i]; \ 245 } \ 246 } \ 247 static void CPPJoin2(UnpackLXOR_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 248 type *u = (type*)unpacked; \ 249 const type *p = (const type*)packed; \ 250 PetscInt i; \ 251 for (i=0; i<n; i++) { \ 252 type v = u[idx[i]]; \ 253 u[idx[i]] = (!v)!=(!p[i]); \ 254 } \ 255 } \ 256 static void CPPJoin2(FetchAndLAND_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 257 type *u = (type*)unpacked; \ 258 type *p = (type*)packed; \ 259 PetscInt i; \ 260 for (i=0; i<n; i++) { \ 261 PetscInt j = idx[i]; \ 262 type v = u[j]; \ 263 u[j] = v && p[i]; \ 264 p[i] = v; \ 265 } \ 266 } \ 267 static void CPPJoin2(FetchAndLOR_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 268 type *u = (type*)unpacked; \ 269 type *p = (type*)packed; \ 270 PetscInt i; \ 271 for (i=0; i<n; i++) { \ 272 PetscInt j = idx[i]; \ 273 type v = u[j]; \ 274 u[j] = v || p[i]; \ 275 p[i] = v; \ 276 } \ 277 } \ 278 static void CPPJoin2(FetchAndLXOR_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 279 type *u = (type*)unpacked; \ 280 type *p = (type*)packed; \ 281 PetscInt i; \ 282 for (i=0; i<n; i++) { \ 283 PetscInt j = idx[i]; \ 284 type v = u[j]; \ 285 u[j] = (!v)!=(!p[i]); \ 286 p[i] = v; \ 287 } \ 288 } \ 289 static void CPPJoin2(PackInit_Logical_,type)(PetscSFBasicPack link) { \ 290 link->UnpackLAND = CPPJoin2(UnpackLAND_,type); \ 291 link->UnpackLOR = CPPJoin2(UnpackLOR_,type); \ 292 link->UnpackLXOR = CPPJoin2(UnpackLXOR_,type); \ 293 link->FetchAndLAND = CPPJoin2(FetchAndLAND_,type); \ 294 link->FetchAndLOR = CPPJoin2(FetchAndLOR_,type); \ 295 link->FetchAndLXOR = CPPJoin2(FetchAndLXOR_,type); \ 296 } 297 298 299 /* Bitwise Types */ 300 #define DEF_PackBit(type) \ 301 static void CPPJoin2(UnpackBAND_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 302 type *u = (type*)unpacked; \ 303 const type *p = (const type*)packed; \ 304 PetscInt i; \ 305 for (i=0; i<n; i++) { \ 306 type v = u[idx[i]]; \ 307 u[idx[i]] = v & p[i]; \ 308 } \ 309 } \ 310 static void CPPJoin2(UnpackBOR_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 311 type *u = (type*)unpacked; \ 312 const type *p = (const type*)packed; \ 313 PetscInt i; \ 314 for (i=0; i<n; i++) { \ 315 type v = u[idx[i]]; \ 316 u[idx[i]] = v | p[i]; \ 317 } \ 318 } \ 319 static void CPPJoin2(UnpackBXOR_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 320 type *u = (type*)unpacked; \ 321 const type *p = (const type*)packed; \ 322 PetscInt i; \ 323 for (i=0; i<n; i++) { \ 324 type v = u[idx[i]]; \ 325 u[idx[i]] = v^p[i]; \ 326 } \ 327 } \ 328 static void CPPJoin2(FetchAndBAND_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 329 type *u = (type*)unpacked; \ 330 type *p = (type*)packed; \ 331 PetscInt i; \ 332 for (i=0; i<n; i++) { \ 333 PetscInt j = idx[i]; \ 334 type v = u[j]; \ 335 u[j] = v & p[i]; \ 336 p[i] = v; \ 337 } \ 338 } \ 339 static void CPPJoin2(FetchAndBOR_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 340 type *u = (type*)unpacked; \ 341 type *p = (type*)packed; \ 342 PetscInt i; \ 343 for (i=0; i<n; i++) { \ 344 PetscInt j = idx[i]; \ 345 type v = u[j]; \ 346 u[j] = v | p[i]; \ 347 p[i] = v; \ 348 } \ 349 } \ 350 static void CPPJoin2(FetchAndBXOR_,type)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 351 type *u = (type*)unpacked; \ 352 type *p = (type*)packed; \ 353 PetscInt i; \ 354 for (i=0; i<n; i++) { \ 355 PetscInt j = idx[i]; \ 356 type v = u[j]; \ 357 u[j] = v^p[i]; \ 358 p[i] = v; \ 359 } \ 360 } \ 361 static void CPPJoin2(PackInit_Bitwise_,type)(PetscSFBasicPack link) { \ 362 link->UnpackBAND = CPPJoin2(UnpackBAND_,type); \ 363 link->UnpackBOR = CPPJoin2(UnpackBOR_,type); \ 364 link->UnpackBXOR = CPPJoin2(UnpackBXOR_,type); \ 365 link->FetchAndBAND = CPPJoin2(FetchAndBAND_,type); \ 366 link->FetchAndBOR = CPPJoin2(FetchAndBOR_,type); \ 367 link->FetchAndBXOR = CPPJoin2(FetchAndBXOR_,type); \ 368 } 369 370 /* Pair types */ 371 #define CPPJoinloc_exp(base,op,t1,t2) base ## op ## loc_ ## t1 ## _ ## t2 372 #define CPPJoinloc(base,op,t1,t2) CPPJoinloc_exp(base,op,t1,t2) 373 #define PairType(type1,type2) CPPJoin3_(_pairtype_,type1,type2) 374 #define DEF_UnpackXloc(type1,type2,locname,op) \ 375 static void CPPJoinloc(Unpack,locname,type1,type2)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 376 PairType(type1,type2) *u = (PairType(type1,type2)*)unpacked; \ 377 const PairType(type1,type2) *p = (const PairType(type1,type2)*)packed; \ 378 PetscInt i; \ 379 for (i=0; i<n; i++) { \ 380 PetscInt j = idx[i]; \ 381 if (p[i].a op u[j].a) { \ 382 u[j].a = p[i].a; \ 383 u[j].b = p[i].b; \ 384 } else if (u[j].a == p[i].a) { \ 385 u[j].b = PetscMin(u[j].b,p[i].b); \ 386 } \ 387 } \ 388 } \ 389 static void CPPJoinloc(FetchAnd,locname,type1,type2)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 390 PairType(type1,type2) *u = (PairType(type1,type2)*)unpacked; \ 391 PairType(type1,type2) *p = (PairType(type1,type2)*)packed; \ 392 PetscInt i; \ 393 for (i=0; i<n; i++) { \ 394 PetscInt j = idx[i]; \ 395 PairType(type1,type2) v; \ 396 v.a = u[j].a; \ 397 v.b = u[j].b; \ 398 if (p[i].a op u[j].a) { \ 399 u[j].a = p[i].a; \ 400 u[j].b = p[i].b; \ 401 } else if (u[j].a == p[i].a) { \ 402 u[j].b = PetscMin(u[j].b,p[i].b); \ 403 } \ 404 p[i].a = v.a; \ 405 p[i].b = v.b; \ 406 } \ 407 } 408 #define DEF_PackPair(type1,type2) \ 409 typedef struct {type1 a; type2 b;} PairType(type1,type2); \ 410 static void CPPJoin3_(Pack_,type1,type2)(PetscInt n,PetscInt bs,const PetscInt *idx,const void *unpacked,void *packed) { \ 411 const PairType(type1,type2) *u = (const PairType(type1,type2)*)unpacked; \ 412 PairType(type1,type2) *p = (PairType(type1,type2)*)packed; \ 413 PetscInt i; \ 414 for (i=0; i<n; i++) { \ 415 p[i].a = u[idx[i]].a; \ 416 p[i].b = u[idx[i]].b; \ 417 } \ 418 } \ 419 static void CPPJoin3_(UnpackInsert_,type1,type2)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 420 PairType(type1,type2) *u = (PairType(type1,type2)*)unpacked; \ 421 const PairType(type1,type2) *p = (const PairType(type1,type2)*)packed; \ 422 PetscInt i; \ 423 for (i=0; i<n; i++) { \ 424 u[idx[i]].a = p[i].a; \ 425 u[idx[i]].b = p[i].b; \ 426 } \ 427 } \ 428 static void CPPJoin3_(UnpackAdd_,type1,type2)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,const void *packed) { \ 429 PairType(type1,type2) *u = (PairType(type1,type2)*)unpacked; \ 430 const PairType(type1,type2) *p = (const PairType(type1,type2)*)packed; \ 431 PetscInt i; \ 432 for (i=0; i<n; i++) { \ 433 u[idx[i]].a += p[i].a; \ 434 u[idx[i]].b += p[i].b; \ 435 } \ 436 } \ 437 static void CPPJoin3_(FetchAndInsert_,type1,type2)(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 438 PairType(type1,type2) *u = (PairType(type1,type2)*)unpacked; \ 439 PairType(type1,type2) *p = (PairType(type1,type2)*)packed; \ 440 PetscInt i; \ 441 for (i=0; i<n; i++) { \ 442 PetscInt j = idx[i]; \ 443 PairType(type1,type2) v; \ 444 v.a = u[j].a; \ 445 v.b = u[j].b; \ 446 u[j].a = p[i].a; \ 447 u[j].b = p[i].b; \ 448 p[i].a = v.a; \ 449 p[i].b = v.b; \ 450 } \ 451 } \ 452 static void FetchAndAdd_ ## type1 ## _ ## type2(PetscInt n,PetscInt bs,const PetscInt *idx,void *unpacked,void *packed) { \ 453 PairType(type1,type2) *u = (PairType(type1,type2)*)unpacked; \ 454 PairType(type1,type2) *p = (PairType(type1,type2)*)packed; \ 455 PetscInt i; \ 456 for (i=0; i<n; i++) { \ 457 PetscInt j = idx[i]; \ 458 PairType(type1,type2) v; \ 459 v.a = u[j].a; \ 460 v.b = u[j].b; \ 461 u[j].a = v.a + p[i].a; \ 462 u[j].b = v.b + p[i].b; \ 463 p[i].a = v.a; \ 464 p[i].b = v.b; \ 465 } \ 466 } \ 467 DEF_UnpackXloc(type1,type2,Max,>) \ 468 DEF_UnpackXloc(type1,type2,Min,<) \ 469 static void CPPJoin3_(PackInit_,type1,type2)(PetscSFBasicPack link) { \ 470 link->Pack = CPPJoin3_(Pack_,type1,type2); \ 471 link->UnpackInsert = CPPJoin3_(UnpackInsert_,type1,type2); \ 472 link->UnpackAdd = CPPJoin3_(UnpackAdd_,type1,type2); \ 473 link->UnpackMaxloc = CPPJoin3_(UnpackMaxloc_,type1,type2); \ 474 link->UnpackMinloc = CPPJoin3_(UnpackMinloc_,type1,type2); \ 475 link->FetchAndInsert = CPPJoin3_(FetchAndInsert_,type1,type2); \ 476 link->FetchAndAdd = CPPJoin3_(FetchAndAdd_,type1,type2); \ 477 link->FetchAndMaxloc = CPPJoin3_(FetchAndMaxloc_,type1,type2); \ 478 link->FetchAndMinloc = CPPJoin3_(FetchAndMinloc_,type1,type2); \ 479 link->unitbytes = sizeof(PairType(type1,type2)); \ 480 } 481 482 /* Currently only dumb blocks of data */ 483 #define BlockType(unit,count) CPPJoin3_(_blocktype_,unit,count) 484 #define DEF_Block(unit,count) \ 485 typedef struct {unit v[count];} BlockType(unit,count); \ 486 DEF_PackNoInit(BlockType(unit,count),1) \ 487 static void CPPJoin3_(PackInit_block_,unit,count)(PetscSFBasicPack link) { \ 488 link->Pack = CPPJoin3_(Pack_,BlockType(unit,count),1); \ 489 link->UnpackInsert = CPPJoin3_(UnpackInsert_,BlockType(unit,count),1); \ 490 link->FetchAndInsert = CPPJoin3_(FetchAndInsert_,BlockType(unit,count),1); \ 491 link->unitbytes = sizeof(BlockType(unit,count)); \ 492 } 493 494 DEF_PackCmp(int) 495 DEF_PackBit(int) 496 DEF_PackLog(int) 497 DEF_PackCmp(PetscInt) 498 DEF_PackBit(PetscInt) 499 DEF_PackLog(PetscInt) 500 DEF_Pack(PetscInt,2) 501 DEF_Pack(PetscInt,3) 502 DEF_Pack(PetscInt,4) 503 DEF_Pack(PetscInt,5) 504 DEF_Pack(PetscInt,7) 505 DEF_PackCmp(PetscReal) 506 DEF_PackLog(PetscReal) 507 DEF_Pack(PetscReal,2) 508 DEF_Pack(PetscReal,3) 509 DEF_Pack(PetscReal,4) 510 DEF_Pack(PetscReal,5) 511 DEF_Pack(PetscReal,7) 512 #if defined(PETSC_HAVE_COMPLEX) 513 DEF_Pack(PetscComplex,1) 514 DEF_Pack(PetscComplex,2) 515 DEF_Pack(PetscComplex,3) 516 DEF_Pack(PetscComplex,4) 517 DEF_Pack(PetscComplex,5) 518 DEF_Pack(PetscComplex,7) 519 #endif 520 DEF_PackPair(int,int) 521 DEF_PackPair(PetscInt,PetscInt) 522 DEF_Block(int,1) 523 DEF_Block(int,2) 524 DEF_Block(int,3) 525 DEF_Block(int,4) 526 DEF_Block(int,5) 527 DEF_Block(int,6) 528 DEF_Block(int,7) 529 DEF_Block(int,8) 530 531 #undef __FUNCT__ 532 #define __FUNCT__ "PetscSFSetUp_Basic" 533 static PetscErrorCode PetscSFSetUp_Basic(PetscSF sf) 534 { 535 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 536 PetscErrorCode ierr; 537 PetscInt *rlengths,*ilengths,i; 538 MPI_Comm comm; 539 MPI_Request *rootreqs,*leafreqs; 540 541 PetscFunctionBegin; 542 ierr = PetscObjectGetComm((PetscObject)sf,&comm);CHKERRQ(ierr); 543 ierr = PetscObjectGetNewTag((PetscObject)sf,&bas->tag);CHKERRQ(ierr); 544 /* 545 * Inform roots about how many leaves and from which ranks 546 */ 547 ierr = PetscMalloc1(sf->nranks,&rlengths);CHKERRQ(ierr); 548 /* Determine number, sending ranks, and length of incoming */ 549 for (i=0; i<sf->nranks; i++) { 550 rlengths[i] = sf->roffset[i+1] - sf->roffset[i]; /* Number of roots referenced by my leaves; for rank sf->ranks[i] */ 551 } 552 ierr = PetscCommBuildTwoSided(comm,1,MPIU_INT,sf->nranks,sf->ranks,rlengths,&bas->niranks,&bas->iranks,(void**)&ilengths);CHKERRQ(ierr); 553 ierr = PetscFree(rlengths);CHKERRQ(ierr); 554 555 /* Send leaf identities to roots */ 556 for (i=0,bas->itotal=0; i<bas->niranks; i++) bas->itotal += ilengths[i]; 557 ierr = PetscMalloc2(bas->niranks+1,&bas->ioffset,bas->itotal,&bas->irootloc);CHKERRQ(ierr); 558 ierr = PetscMalloc2(bas->niranks,&rootreqs,sf->nranks,&leafreqs);CHKERRQ(ierr); 559 bas->ioffset[0] = 0; 560 for (i=0; i<bas->niranks; i++) { 561 bas->ioffset[i+1] = bas->ioffset[i] + ilengths[i]; 562 ierr = MPI_Irecv(bas->irootloc+bas->ioffset[i],ilengths[i],MPIU_INT,bas->iranks[i],bas->tag,comm,&rootreqs[i]);CHKERRQ(ierr); 563 } 564 for (i=0; i<sf->nranks; i++) { 565 PetscMPIInt npoints; 566 ierr = PetscMPIIntCast(sf->roffset[i+1] - sf->roffset[i],&npoints);CHKERRQ(ierr); 567 ierr = MPI_Isend(sf->rremote+sf->roffset[i],npoints,MPIU_INT,sf->ranks[i],bas->tag,comm,&leafreqs[i]);CHKERRQ(ierr); 568 } 569 ierr = MPI_Waitall(bas->niranks,rootreqs,MPI_STATUSES_IGNORE);CHKERRQ(ierr); 570 ierr = MPI_Waitall(sf->nranks,leafreqs,MPI_STATUSES_IGNORE);CHKERRQ(ierr); 571 ierr = PetscFree(ilengths);CHKERRQ(ierr); 572 ierr = PetscFree2(rootreqs,leafreqs);CHKERRQ(ierr); 573 PetscFunctionReturn(0); 574 } 575 576 #undef __FUNCT__ 577 #define __FUNCT__ "PetscSFBasicPackTypeSetup" 578 static PetscErrorCode PetscSFBasicPackTypeSetup(PetscSFBasicPack link,MPI_Datatype unit) 579 { 580 PetscErrorCode ierr; 581 PetscBool isInt,isPetscInt,isPetscReal,is2Int,is2PetscInt; 582 PetscInt nPetscIntContig,nPetscRealContig; 583 #if defined(PETSC_HAVE_COMPLEX) 584 PetscBool isPetscComplex; 585 PetscInt nPetscComplexContig; 586 #endif 587 588 PetscFunctionBegin; 589 ierr = MPIPetsc_Type_compare(unit,MPI_INT,&isInt);CHKERRQ(ierr); 590 ierr = MPIPetsc_Type_compare(unit,MPIU_INT,&isPetscInt);CHKERRQ(ierr); 591 ierr = MPIPetsc_Type_compare_contig(unit,MPIU_INT,&nPetscIntContig);CHKERRQ(ierr); 592 ierr = MPIPetsc_Type_compare(unit,MPIU_REAL,&isPetscReal);CHKERRQ(ierr); 593 ierr = MPIPetsc_Type_compare_contig(unit,MPIU_REAL,&nPetscRealContig);CHKERRQ(ierr); 594 #if defined(PETSC_HAVE_COMPLEX) 595 ierr = MPIPetsc_Type_compare(unit,MPIU_COMPLEX,&isPetscComplex);CHKERRQ(ierr); 596 ierr = MPIPetsc_Type_compare_contig(unit,MPIU_COMPLEX,&nPetscComplexContig);CHKERRQ(ierr); 597 #endif 598 ierr = MPIPetsc_Type_compare(unit,MPI_2INT,&is2Int);CHKERRQ(ierr); 599 ierr = MPIPetsc_Type_compare(unit,MPIU_2INT,&is2PetscInt);CHKERRQ(ierr); 600 link->bs = 1; 601 if (isInt) {PackInit_int(link); PackInit_Logical_int(link); PackInit_Bitwise_int(link);} 602 else if (isPetscInt) {PackInit_PetscInt(link); PackInit_Logical_PetscInt(link); PackInit_Bitwise_PetscInt(link);} 603 else if (isPetscReal) {PackInit_PetscReal(link); PackInit_Logical_PetscReal(link);} 604 #if defined(PETSC_HAVE_COMPLEX) 605 else if (isPetscComplex) PackInit_PetscComplex_1(link); 606 #endif 607 else if (is2Int) PackInit_int_int(link); 608 else if (is2PetscInt) PackInit_PetscInt_PetscInt(link); 609 else if (nPetscIntContig) { 610 if (nPetscIntContig%7 == 0) PackInit_PetscInt_7(link); 611 else if (nPetscIntContig%5 == 0) PackInit_PetscInt_5(link); 612 else if (nPetscIntContig%4 == 0) PackInit_PetscInt_4(link); 613 else if (nPetscIntContig%3 == 0) PackInit_PetscInt_3(link); 614 else if (nPetscIntContig%2 == 0) PackInit_PetscInt_2(link); 615 else PackInit_PetscInt(link); 616 link->bs = nPetscIntContig; 617 link->unitbytes *= nPetscIntContig; 618 } else if (nPetscRealContig) { 619 if (nPetscRealContig%7 == 0) PackInit_PetscReal_7(link); 620 else if (nPetscRealContig%5 == 0) PackInit_PetscReal_5(link); 621 else if (nPetscRealContig%4 == 0) PackInit_PetscReal_4(link); 622 else if (nPetscRealContig%3 == 0) PackInit_PetscReal_3(link); 623 else if (nPetscRealContig%2 == 0) PackInit_PetscReal_2(link); 624 else PackInit_PetscReal(link); 625 link->bs = nPetscRealContig; 626 link->unitbytes *= nPetscRealContig; 627 #if defined(PETSC_HAVE_COMPLEX) 628 } else if (nPetscComplexContig) { 629 if (nPetscComplexContig%7 == 0) PackInit_PetscComplex_7(link); 630 else if (nPetscComplexContig%5 == 0) PackInit_PetscComplex_5(link); 631 else if (nPetscComplexContig%4 == 0) PackInit_PetscComplex_4(link); 632 else if (nPetscComplexContig%3 == 0) PackInit_PetscComplex_3(link); 633 else if (nPetscComplexContig%2 == 0) PackInit_PetscComplex_2(link); 634 else PackInit_PetscComplex_1(link); 635 link->bs = nPetscComplexContig; 636 link->unitbytes *= nPetscComplexContig; 637 #endif 638 } else { 639 PetscMPIInt bytes; 640 ierr = MPI_Type_size(unit,&bytes);CHKERRQ(ierr); 641 if (bytes % sizeof(int)) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"No support for type size not divisible by %D",sizeof(int)); 642 switch (bytes / sizeof(int)) { 643 case 1: PackInit_block_int_1(link); break; 644 case 2: PackInit_block_int_2(link); break; 645 case 3: PackInit_block_int_3(link); break; 646 case 4: PackInit_block_int_4(link); break; 647 case 5: PackInit_block_int_5(link); break; 648 case 6: PackInit_block_int_6(link); break; 649 case 7: PackInit_block_int_7(link); break; 650 case 8: PackInit_block_int_8(link); break; 651 default: SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"No support for arbitrary block sizes"); 652 } 653 } 654 ierr = MPI_Type_dup(unit,&link->unit);CHKERRQ(ierr); 655 PetscFunctionReturn(0); 656 } 657 658 #undef __FUNCT__ 659 #define __FUNCT__ "PetscSFBasicPackGetUnpackOp" 660 static PetscErrorCode PetscSFBasicPackGetUnpackOp(PetscSF sf,PetscSFBasicPack link,MPI_Op op,void (**UnpackOp)(PetscInt,PetscInt,const PetscInt*,void*,const void*)) 661 { 662 PetscFunctionBegin; 663 *UnpackOp = NULL; 664 if (op == MPIU_REPLACE) *UnpackOp = link->UnpackInsert; 665 else if (op == MPI_SUM || op == MPIU_SUM) *UnpackOp = link->UnpackAdd; 666 else if (op == MPI_PROD) *UnpackOp = link->UnpackMult; 667 else if (op == MPI_MAX || op == MPIU_MAX) *UnpackOp = link->UnpackMax; 668 else if (op == MPI_MIN || op == MPIU_MIN) *UnpackOp = link->UnpackMin; 669 else if (op == MPI_LAND) *UnpackOp = link->UnpackLAND; 670 else if (op == MPI_BAND) *UnpackOp = link->UnpackBAND; 671 else if (op == MPI_LOR) *UnpackOp = link->UnpackLOR; 672 else if (op == MPI_BOR) *UnpackOp = link->UnpackBOR; 673 else if (op == MPI_LXOR) *UnpackOp = link->UnpackLXOR; 674 else if (op == MPI_BXOR) *UnpackOp = link->UnpackBXOR; 675 else if (op == MPI_MAXLOC) *UnpackOp = link->UnpackMaxloc; 676 else if (op == MPI_MINLOC) *UnpackOp = link->UnpackMinloc; 677 else SETERRQ(PetscObjectComm((PetscObject)sf),PETSC_ERR_SUP,"No support for MPI_Op"); 678 PetscFunctionReturn(0); 679 } 680 #undef __FUNCT__ 681 #define __FUNCT__ "PetscSFBasicPackGetFetchAndOp" 682 static PetscErrorCode PetscSFBasicPackGetFetchAndOp(PetscSF sf,PetscSFBasicPack link,MPI_Op op,void (**FetchAndOp)(PetscInt,PetscInt,const PetscInt*,void*,void*)) 683 { 684 PetscFunctionBegin; 685 *FetchAndOp = NULL; 686 if (op == MPIU_REPLACE) *FetchAndOp = link->FetchAndInsert; 687 else if (op == MPI_SUM || op == MPIU_SUM) *FetchAndOp = link->FetchAndAdd; 688 else if (op == MPI_MAX || op == MPIU_MAX) *FetchAndOp = link->FetchAndMax; 689 else if (op == MPI_MIN || op == MPIU_MIN) *FetchAndOp = link->FetchAndMin; 690 else if (op == MPI_MAXLOC) *FetchAndOp = link->FetchAndMaxloc; 691 else if (op == MPI_MINLOC) *FetchAndOp = link->FetchAndMinloc; 692 else if (op == MPI_PROD) *FetchAndOp = link->FetchAndMult; 693 else if (op == MPI_LAND) *FetchAndOp = link->FetchAndLAND; 694 else if (op == MPI_BAND) *FetchAndOp = link->FetchAndBAND; 695 else if (op == MPI_LOR) *FetchAndOp = link->FetchAndLOR; 696 else if (op == MPI_BOR) *FetchAndOp = link->FetchAndBOR; 697 else if (op == MPI_LXOR) *FetchAndOp = link->FetchAndLXOR; 698 else if (op == MPI_BXOR) *FetchAndOp = link->FetchAndBXOR; 699 else SETERRQ(PetscObjectComm((PetscObject)sf),PETSC_ERR_SUP,"No support for MPI_Op"); 700 PetscFunctionReturn(0); 701 } 702 703 #undef __FUNCT__ 704 #define __FUNCT__ "PetscSFBasicPackGetReqs" 705 static PetscErrorCode PetscSFBasicPackGetReqs(PetscSF sf,PetscSFBasicPack link,MPI_Request **rootreqs,MPI_Request **leafreqs) 706 { 707 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 708 709 PetscFunctionBegin; 710 if (rootreqs) *rootreqs = link->requests; 711 if (leafreqs) *leafreqs = link->requests + bas->niranks; 712 PetscFunctionReturn(0); 713 } 714 715 #undef __FUNCT__ 716 #define __FUNCT__ "PetscSFBasicPackWaitall" 717 static PetscErrorCode PetscSFBasicPackWaitall(PetscSF sf,PetscSFBasicPack link) 718 { 719 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 720 PetscErrorCode ierr; 721 722 PetscFunctionBegin; 723 ierr = MPI_Waitall(bas->niranks+sf->nranks,link->requests,MPI_STATUSES_IGNORE);CHKERRQ(ierr); 724 PetscFunctionReturn(0); 725 } 726 727 #undef __FUNCT__ 728 #define __FUNCT__ "PetscSFBasicGetRootInfo" 729 static PetscErrorCode PetscSFBasicGetRootInfo(PetscSF sf,PetscInt *nrootranks,const PetscMPIInt **rootranks,const PetscInt **rootoffset,const PetscInt **rootloc) 730 { 731 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 732 733 PetscFunctionBegin; 734 if (nrootranks) *nrootranks = bas->niranks; 735 if (rootranks) *rootranks = bas->iranks; 736 if (rootoffset) *rootoffset = bas->ioffset; 737 if (rootloc) *rootloc = bas->irootloc; 738 PetscFunctionReturn(0); 739 } 740 741 #undef __FUNCT__ 742 #define __FUNCT__ "PetscSFBasicGetLeafInfo" 743 static PetscErrorCode PetscSFBasicGetLeafInfo(PetscSF sf,PetscInt *nleafranks,const PetscMPIInt **leafranks,const PetscInt **leafoffset,const PetscInt **leafloc) 744 { 745 PetscFunctionBegin; 746 if (nleafranks) *nleafranks = sf->nranks; 747 if (leafranks) *leafranks = sf->ranks; 748 if (leafoffset) *leafoffset = sf->roffset; 749 if (leafloc) *leafloc = sf->rmine; 750 PetscFunctionReturn(0); 751 } 752 753 #undef __FUNCT__ 754 #define __FUNCT__ "PetscSFBasicGetPack" 755 static PetscErrorCode PetscSFBasicGetPack(PetscSF sf,MPI_Datatype unit,const void *key,PetscSFBasicPack *mylink) 756 { 757 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 758 PetscErrorCode ierr; 759 PetscSFBasicPack link,*p; 760 PetscInt nrootranks,nleafranks; 761 const PetscInt *rootoffset,*leafoffset; 762 763 PetscFunctionBegin; 764 /* Look for types in cache */ 765 for (p=&bas->avail; (link=*p); p=&link->next) { 766 PetscBool match; 767 ierr = MPIPetsc_Type_compare(unit,link->unit,&match);CHKERRQ(ierr); 768 if (match) { 769 *p = link->next; /* Remove from available list */ 770 goto found; 771 } 772 } 773 774 /* Create new composite types for each send rank */ 775 ierr = PetscSFBasicGetRootInfo(sf,&nrootranks,NULL,&rootoffset,NULL);CHKERRQ(ierr); 776 ierr = PetscSFBasicGetLeafInfo(sf,&nleafranks,NULL,&leafoffset,NULL);CHKERRQ(ierr); 777 ierr = PetscNew(&link);CHKERRQ(ierr); 778 ierr = PetscSFBasicPackTypeSetup(link,unit);CHKERRQ(ierr); 779 ierr = PetscMalloc2(rootoffset[nrootranks]*link->unitbytes,&link->root,leafoffset[nleafranks]*link->unitbytes,&link->leaf);CHKERRQ(ierr); 780 ierr = PetscMalloc1(nrootranks+nleafranks,&link->requests);CHKERRQ(ierr); 781 782 found: 783 link->key = key; 784 link->next = bas->inuse; 785 bas->inuse = link; 786 787 *mylink = link; 788 PetscFunctionReturn(0); 789 } 790 791 #undef __FUNCT__ 792 #define __FUNCT__ "PetscSFBasicGetPackInUse" 793 static PetscErrorCode PetscSFBasicGetPackInUse(PetscSF sf,MPI_Datatype unit,const void *key,PetscCopyMode cmode,PetscSFBasicPack *mylink) 794 { 795 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 796 PetscErrorCode ierr; 797 PetscSFBasicPack link,*p; 798 799 PetscFunctionBegin; 800 /* Look for types in cache */ 801 for (p=&bas->inuse; (link=*p); p=&link->next) { 802 PetscBool match; 803 ierr = MPIPetsc_Type_compare(unit,link->unit,&match);CHKERRQ(ierr); 804 if (match) { 805 switch (cmode) { 806 case PETSC_OWN_POINTER: *p = link->next; break; /* Remove from inuse list */ 807 case PETSC_USE_POINTER: break; 808 default: SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_INCOMP,"invalid cmode"); 809 } 810 *mylink = link; 811 PetscFunctionReturn(0); 812 } 813 } 814 SETERRQ(PetscObjectComm((PetscObject)sf),PETSC_ERR_ARG_WRONGSTATE,"Could not find pack"); 815 PetscFunctionReturn(0); 816 } 817 818 #undef __FUNCT__ 819 #define __FUNCT__ "PetscSFBasicReclaimPack" 820 static PetscErrorCode PetscSFBasicReclaimPack(PetscSF sf,PetscSFBasicPack *link) 821 { 822 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 823 824 PetscFunctionBegin; 825 (*link)->key = NULL; 826 (*link)->next = bas->avail; 827 bas->avail = *link; 828 *link = NULL; 829 PetscFunctionReturn(0); 830 } 831 832 #undef __FUNCT__ 833 #define __FUNCT__ "PetscSFSetFromOptions_Basic" 834 static PetscErrorCode PetscSFSetFromOptions_Basic(PetscSF sf) 835 { 836 PetscErrorCode ierr; 837 838 PetscFunctionBegin; 839 ierr = PetscOptionsHead("PetscSF Basic options");CHKERRQ(ierr); 840 ierr = PetscOptionsTail();CHKERRQ(ierr); 841 PetscFunctionReturn(0); 842 } 843 844 #undef __FUNCT__ 845 #define __FUNCT__ "PetscSFReset_Basic" 846 static PetscErrorCode PetscSFReset_Basic(PetscSF sf) 847 { 848 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 849 PetscErrorCode ierr; 850 PetscSFBasicPack link,next; 851 852 PetscFunctionBegin; 853 ierr = PetscFree(bas->iranks);CHKERRQ(ierr); 854 ierr = PetscFree2(bas->ioffset,bas->irootloc);CHKERRQ(ierr); 855 if (bas->inuse) SETERRQ(PetscObjectComm((PetscObject)sf),PETSC_ERR_ARG_WRONGSTATE,"Outstanding operation has not been completed"); 856 for (link=bas->avail; link; link=next) { 857 next = link->next; 858 #if defined(PETSC_HAVE_MPI_TYPE_DUP) 859 ierr = MPI_Type_free(&link->unit);CHKERRQ(ierr); 860 #endif 861 ierr = PetscFree2(link->root,link->leaf);CHKERRQ(ierr); 862 ierr = PetscFree(link->requests);CHKERRQ(ierr); 863 ierr = PetscFree(link);CHKERRQ(ierr); 864 } 865 bas->avail = NULL; 866 PetscFunctionReturn(0); 867 } 868 869 #undef __FUNCT__ 870 #define __FUNCT__ "PetscSFDestroy_Basic" 871 static PetscErrorCode PetscSFDestroy_Basic(PetscSF sf) 872 { 873 PetscErrorCode ierr; 874 875 PetscFunctionBegin; 876 ierr = PetscSFReset_Basic(sf);CHKERRQ(ierr); 877 ierr = PetscFree(sf->data);CHKERRQ(ierr); 878 PetscFunctionReturn(0); 879 } 880 881 #undef __FUNCT__ 882 #define __FUNCT__ "PetscSFView_Basic" 883 static PetscErrorCode PetscSFView_Basic(PetscSF sf,PetscViewer viewer) 884 { 885 /* PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; */ 886 PetscErrorCode ierr; 887 PetscBool iascii; 888 889 PetscFunctionBegin; 890 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&iascii);CHKERRQ(ierr); 891 if (iascii) { 892 ierr = PetscViewerASCIIPrintf(viewer," sort=%s\n",sf->rankorder ? "rank-order" : "unordered");CHKERRQ(ierr); 893 } 894 PetscFunctionReturn(0); 895 } 896 897 #undef __FUNCT__ 898 #define __FUNCT__ "PetscSFBcastBegin_Basic" 899 /* Send from roots to leaves */ 900 static PetscErrorCode PetscSFBcastBegin_Basic(PetscSF sf,MPI_Datatype unit,const void *rootdata,void *leafdata) 901 { 902 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 903 PetscErrorCode ierr; 904 PetscSFBasicPack link; 905 PetscInt i,nrootranks,nleafranks; 906 const PetscInt *rootoffset,*leafoffset,*rootloc,*leafloc; 907 const PetscMPIInt *rootranks,*leafranks; 908 MPI_Request *rootreqs,*leafreqs; 909 size_t unitbytes; 910 911 PetscFunctionBegin; 912 ierr = PetscSFBasicGetRootInfo(sf,&nrootranks,&rootranks,&rootoffset,&rootloc);CHKERRQ(ierr); 913 ierr = PetscSFBasicGetLeafInfo(sf,&nleafranks,&leafranks,&leafoffset,&leafloc);CHKERRQ(ierr); 914 ierr = PetscSFBasicGetPack(sf,unit,rootdata,&link);CHKERRQ(ierr); 915 916 unitbytes = link->unitbytes; 917 918 ierr = PetscSFBasicPackGetReqs(sf,link,&rootreqs,&leafreqs);CHKERRQ(ierr); 919 /* Eagerly post leaf receives */ 920 for (i=0; i<nleafranks; i++) { 921 PetscMPIInt n = leafoffset[i+1] - leafoffset[i]; 922 ierr = MPI_Irecv(link->leaf+leafoffset[i]*unitbytes,n,unit,leafranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&leafreqs[i]);CHKERRQ(ierr); 923 } 924 /* Pack and send root data */ 925 for (i=0; i<nrootranks; i++) { 926 PetscMPIInt n = rootoffset[i+1] - rootoffset[i]; 927 void *packstart = link->root+rootoffset[i]*unitbytes; 928 (*link->Pack)(n,link->bs,rootloc+rootoffset[i],rootdata,packstart); 929 ierr = MPI_Isend(packstart,n,unit,rootranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&rootreqs[i]);CHKERRQ(ierr); 930 } 931 PetscFunctionReturn(0); 932 } 933 934 #undef __FUNCT__ 935 #define __FUNCT__ "PetscSFBcastEnd_Basic" 936 PetscErrorCode PetscSFBcastEnd_Basic(PetscSF sf,MPI_Datatype unit,const void *rootdata,void *leafdata) 937 { 938 PetscErrorCode ierr; 939 PetscSFBasicPack link; 940 PetscInt i,nleafranks; 941 const PetscInt *leafoffset,*leafloc; 942 943 PetscFunctionBegin; 944 ierr = PetscSFBasicGetPackInUse(sf,unit,rootdata,PETSC_OWN_POINTER,&link);CHKERRQ(ierr); 945 ierr = PetscSFBasicPackWaitall(sf,link);CHKERRQ(ierr); 946 ierr = PetscSFBasicGetLeafInfo(sf,&nleafranks,NULL,&leafoffset,&leafloc);CHKERRQ(ierr); 947 for (i=0; i<nleafranks; i++) { 948 PetscMPIInt n = leafoffset[i+1] - leafoffset[i]; 949 const void *packstart = link->leaf+leafoffset[i]*link->unitbytes; 950 (*link->UnpackInsert)(n,link->bs,leafloc+leafoffset[i],leafdata,packstart); 951 } 952 ierr = PetscSFBasicReclaimPack(sf,&link);CHKERRQ(ierr); 953 PetscFunctionReturn(0); 954 } 955 956 #undef __FUNCT__ 957 #define __FUNCT__ "PetscSFReduceBegin_Basic" 958 /* leaf -> root with reduction */ 959 PetscErrorCode PetscSFReduceBegin_Basic(PetscSF sf,MPI_Datatype unit,const void *leafdata,void *rootdata,MPI_Op op) 960 { 961 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 962 PetscSFBasicPack link; 963 PetscErrorCode ierr; 964 PetscInt i,nrootranks,nleafranks; 965 const PetscInt *rootoffset,*leafoffset,*rootloc,*leafloc; 966 const PetscMPIInt *rootranks,*leafranks; 967 MPI_Request *rootreqs,*leafreqs; 968 size_t unitbytes; 969 970 PetscFunctionBegin; 971 ierr = PetscSFBasicGetRootInfo(sf,&nrootranks,&rootranks,&rootoffset,&rootloc);CHKERRQ(ierr); 972 ierr = PetscSFBasicGetLeafInfo(sf,&nleafranks,&leafranks,&leafoffset,&leafloc);CHKERRQ(ierr); 973 ierr = PetscSFBasicGetPack(sf,unit,rootdata,&link);CHKERRQ(ierr); 974 975 unitbytes = link->unitbytes; 976 977 ierr = PetscSFBasicPackGetReqs(sf,link,&rootreqs,&leafreqs);CHKERRQ(ierr); 978 /* Eagerly post root receives */ 979 for (i=0; i<nrootranks; i++) { 980 PetscMPIInt n = rootoffset[i+1] - rootoffset[i]; 981 ierr = MPI_Irecv(link->root+rootoffset[i]*unitbytes,n,unit,rootranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&rootreqs[i]);CHKERRQ(ierr); 982 } 983 /* Pack and send leaf data */ 984 for (i=0; i<nleafranks; i++) { 985 PetscMPIInt n = leafoffset[i+1] - leafoffset[i]; 986 void *packstart = link->leaf+leafoffset[i]*unitbytes; 987 (*link->Pack)(n,link->bs,leafloc+leafoffset[i],leafdata,packstart); 988 ierr = MPI_Isend(packstart,n,unit,leafranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&leafreqs[i]);CHKERRQ(ierr); 989 } 990 PetscFunctionReturn(0); 991 } 992 993 #undef __FUNCT__ 994 #define __FUNCT__ "PetscSFReduceEnd_Basic" 995 static PetscErrorCode PetscSFReduceEnd_Basic(PetscSF sf,MPI_Datatype unit,const void *leafdata,void *rootdata,MPI_Op op) 996 { 997 void (*UnpackOp)(PetscInt,PetscInt,const PetscInt*,void*,const void*); 998 PetscErrorCode ierr; 999 PetscSFBasicPack link; 1000 PetscInt i,nrootranks; 1001 const PetscInt *rootoffset,*rootloc; 1002 1003 PetscFunctionBegin; 1004 ierr = PetscSFBasicGetPackInUse(sf,unit,rootdata,PETSC_OWN_POINTER,&link);CHKERRQ(ierr); 1005 /* This implementation could be changed to unpack as receives arrive, at the cost of non-determinism */ 1006 ierr = PetscSFBasicPackWaitall(sf,link);CHKERRQ(ierr); 1007 ierr = PetscSFBasicGetRootInfo(sf,&nrootranks,NULL,&rootoffset,&rootloc);CHKERRQ(ierr); 1008 ierr = PetscSFBasicPackGetUnpackOp(sf,link,op,&UnpackOp);CHKERRQ(ierr); 1009 for (i=0; i<nrootranks; i++) { 1010 PetscMPIInt n = rootoffset[i+1] - rootoffset[i]; 1011 const void *packstart = link->root+rootoffset[i]*link->unitbytes; 1012 1013 (*UnpackOp)(n,link->bs,rootloc+rootoffset[i],rootdata,packstart); 1014 } 1015 ierr = PetscSFBasicReclaimPack(sf,&link);CHKERRQ(ierr); 1016 PetscFunctionReturn(0); 1017 } 1018 1019 #undef __FUNCT__ 1020 #define __FUNCT__ "PetscSFFetchAndOpBegin_Basic" 1021 static PetscErrorCode PetscSFFetchAndOpBegin_Basic(PetscSF sf,MPI_Datatype unit,void *rootdata,const void *leafdata,void *leafupdate,MPI_Op op) 1022 { 1023 PetscErrorCode ierr; 1024 1025 PetscFunctionBegin; 1026 ierr = PetscSFReduceBegin_Basic(sf,unit,leafdata,rootdata,op);CHKERRQ(ierr); 1027 PetscFunctionReturn(0); 1028 } 1029 1030 #undef __FUNCT__ 1031 #define __FUNCT__ "PetscSFFetchAndOpEnd_Basic" 1032 static PetscErrorCode PetscSFFetchAndOpEnd_Basic(PetscSF sf,MPI_Datatype unit,void *rootdata,const void *leafdata,void *leafupdate,MPI_Op op) 1033 { 1034 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 1035 void (*FetchAndOp)(PetscInt,PetscInt,const PetscInt*,void*,void*); 1036 PetscErrorCode ierr; 1037 PetscSFBasicPack link; 1038 PetscInt i,nrootranks,nleafranks; 1039 const PetscInt *rootoffset,*leafoffset,*rootloc,*leafloc; 1040 const PetscMPIInt *rootranks,*leafranks; 1041 MPI_Request *rootreqs,*leafreqs; 1042 size_t unitbytes; 1043 1044 PetscFunctionBegin; 1045 ierr = PetscSFBasicGetPackInUse(sf,unit,rootdata,PETSC_OWN_POINTER,&link);CHKERRQ(ierr); 1046 /* This implementation could be changed to unpack as receives arrive, at the cost of non-determinism */ 1047 ierr = PetscSFBasicPackWaitall(sf,link);CHKERRQ(ierr); 1048 unitbytes = link->unitbytes; 1049 ierr = PetscSFBasicGetRootInfo(sf,&nrootranks,&rootranks,&rootoffset,&rootloc);CHKERRQ(ierr); 1050 ierr = PetscSFBasicGetLeafInfo(sf,&nleafranks,&leafranks,&leafoffset,&leafloc);CHKERRQ(ierr); 1051 ierr = PetscSFBasicPackGetReqs(sf,link,&rootreqs,&leafreqs);CHKERRQ(ierr); 1052 /* Post leaf receives */ 1053 for (i=0; i<nleafranks; i++) { 1054 PetscMPIInt n = leafoffset[i+1] - leafoffset[i]; 1055 ierr = MPI_Irecv(link->leaf+leafoffset[i]*unitbytes,n,unit,leafranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&leafreqs[i]);CHKERRQ(ierr); 1056 } 1057 /* Process local fetch-and-op, post root sends */ 1058 ierr = PetscSFBasicPackGetFetchAndOp(sf,link,op,&FetchAndOp);CHKERRQ(ierr); 1059 for (i=0; i<nrootranks; i++) { 1060 PetscMPIInt n = rootoffset[i+1] - rootoffset[i]; 1061 void *packstart = link->root+rootoffset[i]*unitbytes; 1062 1063 (*FetchAndOp)(n,link->bs,rootloc+rootoffset[i],rootdata,packstart); 1064 ierr = MPI_Isend(packstart,n,unit,rootranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&rootreqs[i]);CHKERRQ(ierr); 1065 } 1066 ierr = PetscSFBasicPackWaitall(sf,link);CHKERRQ(ierr); 1067 for (i=0; i<nleafranks; i++) { 1068 PetscMPIInt n = leafoffset[i+1] - leafoffset[i]; 1069 const void *packstart = link->leaf+leafoffset[i]*unitbytes; 1070 (*link->UnpackInsert)(n,link->bs,leafloc+leafoffset[i],leafupdate,packstart); 1071 } 1072 ierr = PetscSFBasicReclaimPack(sf,&link);CHKERRQ(ierr); 1073 PetscFunctionReturn(0); 1074 } 1075 1076 #undef __FUNCT__ 1077 #define __FUNCT__ "PetscSFCreate_Basic" 1078 PETSC_EXTERN PetscErrorCode PetscSFCreate_Basic(PetscSF sf) 1079 { 1080 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 1081 PetscErrorCode ierr; 1082 1083 PetscFunctionBegin; 1084 sf->ops->SetUp = PetscSFSetUp_Basic; 1085 sf->ops->SetFromOptions = PetscSFSetFromOptions_Basic; 1086 sf->ops->Reset = PetscSFReset_Basic; 1087 sf->ops->Destroy = PetscSFDestroy_Basic; 1088 sf->ops->View = PetscSFView_Basic; 1089 sf->ops->BcastBegin = PetscSFBcastBegin_Basic; 1090 sf->ops->BcastEnd = PetscSFBcastEnd_Basic; 1091 sf->ops->ReduceBegin = PetscSFReduceBegin_Basic; 1092 sf->ops->ReduceEnd = PetscSFReduceEnd_Basic; 1093 sf->ops->FetchAndOpBegin = PetscSFFetchAndOpBegin_Basic; 1094 sf->ops->FetchAndOpEnd = PetscSFFetchAndOpEnd_Basic; 1095 1096 ierr = PetscNewLog(sf,&bas);CHKERRQ(ierr); 1097 sf->data = (void*)bas; 1098 PetscFunctionReturn(0); 1099 } 1100