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 PetscMPIInt 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 static PetscErrorCode PetscSFSetUp_Basic(PetscSF sf) 532 { 533 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 534 PetscErrorCode ierr; 535 PetscInt *rlengths,*ilengths,i; 536 MPI_Comm comm; 537 MPI_Request *rootreqs,*leafreqs; 538 539 PetscFunctionBegin; 540 ierr = PetscObjectGetComm((PetscObject)sf,&comm);CHKERRQ(ierr); 541 ierr = PetscObjectGetNewTag((PetscObject)sf,&bas->tag);CHKERRQ(ierr); 542 /* 543 * Inform roots about how many leaves and from which ranks 544 */ 545 ierr = PetscMalloc1(sf->nranks,&rlengths);CHKERRQ(ierr); 546 /* Determine number, sending ranks, and length of incoming */ 547 for (i=0; i<sf->nranks; i++) { 548 rlengths[i] = sf->roffset[i+1] - sf->roffset[i]; /* Number of roots referenced by my leaves; for rank sf->ranks[i] */ 549 } 550 ierr = PetscCommBuildTwoSided(comm,1,MPIU_INT,sf->nranks,sf->ranks,rlengths,&bas->niranks,&bas->iranks,(void**)&ilengths);CHKERRQ(ierr); 551 ierr = PetscFree(rlengths);CHKERRQ(ierr); 552 553 /* Send leaf identities to roots */ 554 for (i=0,bas->itotal=0; i<bas->niranks; i++) bas->itotal += ilengths[i]; 555 ierr = PetscMalloc2(bas->niranks+1,&bas->ioffset,bas->itotal,&bas->irootloc);CHKERRQ(ierr); 556 ierr = PetscMalloc2(bas->niranks,&rootreqs,sf->nranks,&leafreqs);CHKERRQ(ierr); 557 bas->ioffset[0] = 0; 558 for (i=0; i<bas->niranks; i++) { 559 bas->ioffset[i+1] = bas->ioffset[i] + ilengths[i]; 560 ierr = MPI_Irecv(bas->irootloc+bas->ioffset[i],ilengths[i],MPIU_INT,bas->iranks[i],bas->tag,comm,&rootreqs[i]);CHKERRQ(ierr); 561 } 562 for (i=0; i<sf->nranks; i++) { 563 PetscMPIInt npoints; 564 ierr = PetscMPIIntCast(sf->roffset[i+1] - sf->roffset[i],&npoints);CHKERRQ(ierr); 565 ierr = MPI_Isend(sf->rremote+sf->roffset[i],npoints,MPIU_INT,sf->ranks[i],bas->tag,comm,&leafreqs[i]);CHKERRQ(ierr); 566 } 567 ierr = MPI_Waitall(bas->niranks,rootreqs,MPI_STATUSES_IGNORE);CHKERRQ(ierr); 568 ierr = MPI_Waitall(sf->nranks,leafreqs,MPI_STATUSES_IGNORE);CHKERRQ(ierr); 569 ierr = PetscFree(ilengths);CHKERRQ(ierr); 570 ierr = PetscFree2(rootreqs,leafreqs);CHKERRQ(ierr); 571 PetscFunctionReturn(0); 572 } 573 574 static PetscErrorCode PetscSFBasicPackTypeSetup(PetscSFBasicPack link,MPI_Datatype unit) 575 { 576 PetscErrorCode ierr; 577 PetscBool isInt,isPetscInt,isPetscReal,is2Int,is2PetscInt; 578 PetscInt nPetscIntContig,nPetscRealContig; 579 #if defined(PETSC_HAVE_COMPLEX) 580 PetscBool isPetscComplex; 581 PetscInt nPetscComplexContig; 582 #endif 583 584 PetscFunctionBegin; 585 ierr = MPIPetsc_Type_compare(unit,MPI_INT,&isInt);CHKERRQ(ierr); 586 ierr = MPIPetsc_Type_compare(unit,MPIU_INT,&isPetscInt);CHKERRQ(ierr); 587 ierr = MPIPetsc_Type_compare_contig(unit,MPIU_INT,&nPetscIntContig);CHKERRQ(ierr); 588 ierr = MPIPetsc_Type_compare(unit,MPIU_REAL,&isPetscReal);CHKERRQ(ierr); 589 ierr = MPIPetsc_Type_compare_contig(unit,MPIU_REAL,&nPetscRealContig);CHKERRQ(ierr); 590 #if defined(PETSC_HAVE_COMPLEX) 591 ierr = MPIPetsc_Type_compare(unit,MPIU_COMPLEX,&isPetscComplex);CHKERRQ(ierr); 592 ierr = MPIPetsc_Type_compare_contig(unit,MPIU_COMPLEX,&nPetscComplexContig);CHKERRQ(ierr); 593 #endif 594 ierr = MPIPetsc_Type_compare(unit,MPI_2INT,&is2Int);CHKERRQ(ierr); 595 ierr = MPIPetsc_Type_compare(unit,MPIU_2INT,&is2PetscInt);CHKERRQ(ierr); 596 link->bs = 1; 597 if (isInt) {PackInit_int(link); PackInit_Logical_int(link); PackInit_Bitwise_int(link);} 598 else if (isPetscInt) {PackInit_PetscInt(link); PackInit_Logical_PetscInt(link); PackInit_Bitwise_PetscInt(link);} 599 else if (isPetscReal) {PackInit_PetscReal(link); PackInit_Logical_PetscReal(link);} 600 #if defined(PETSC_HAVE_COMPLEX) 601 else if (isPetscComplex) PackInit_PetscComplex_1(link); 602 #endif 603 else if (is2Int) PackInit_int_int(link); 604 else if (is2PetscInt) PackInit_PetscInt_PetscInt(link); 605 else if (nPetscIntContig) { 606 if (nPetscIntContig%7 == 0) PackInit_PetscInt_7(link); 607 else if (nPetscIntContig%5 == 0) PackInit_PetscInt_5(link); 608 else if (nPetscIntContig%4 == 0) PackInit_PetscInt_4(link); 609 else if (nPetscIntContig%3 == 0) PackInit_PetscInt_3(link); 610 else if (nPetscIntContig%2 == 0) PackInit_PetscInt_2(link); 611 else PackInit_PetscInt(link); 612 link->bs = nPetscIntContig; 613 link->unitbytes *= nPetscIntContig; 614 } else if (nPetscRealContig) { 615 if (nPetscRealContig%7 == 0) PackInit_PetscReal_7(link); 616 else if (nPetscRealContig%5 == 0) PackInit_PetscReal_5(link); 617 else if (nPetscRealContig%4 == 0) PackInit_PetscReal_4(link); 618 else if (nPetscRealContig%3 == 0) PackInit_PetscReal_3(link); 619 else if (nPetscRealContig%2 == 0) PackInit_PetscReal_2(link); 620 else PackInit_PetscReal(link); 621 link->bs = nPetscRealContig; 622 link->unitbytes *= nPetscRealContig; 623 #if defined(PETSC_HAVE_COMPLEX) 624 } else if (nPetscComplexContig) { 625 if (nPetscComplexContig%7 == 0) PackInit_PetscComplex_7(link); 626 else if (nPetscComplexContig%5 == 0) PackInit_PetscComplex_5(link); 627 else if (nPetscComplexContig%4 == 0) PackInit_PetscComplex_4(link); 628 else if (nPetscComplexContig%3 == 0) PackInit_PetscComplex_3(link); 629 else if (nPetscComplexContig%2 == 0) PackInit_PetscComplex_2(link); 630 else PackInit_PetscComplex_1(link); 631 link->bs = nPetscComplexContig; 632 link->unitbytes *= nPetscComplexContig; 633 #endif 634 } else { 635 MPI_Aint lb,bytes; 636 ierr = MPI_Type_get_extent(unit,&lb,&bytes);CHKERRQ(ierr); 637 if (lb != 0) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"Datatype with nonzero lower bound %ld\n",(long)lb); 638 if (bytes % sizeof(int)) SETERRQ1(PETSC_COMM_SELF,PETSC_ERR_SUP,"No support for type size not divisible by %D",sizeof(int)); 639 switch (bytes / sizeof(int)) { 640 case 1: PackInit_block_int_1(link); break; 641 case 2: PackInit_block_int_2(link); break; 642 case 3: PackInit_block_int_3(link); break; 643 case 4: PackInit_block_int_4(link); break; 644 case 5: PackInit_block_int_5(link); break; 645 case 6: PackInit_block_int_6(link); break; 646 case 7: PackInit_block_int_7(link); break; 647 case 8: PackInit_block_int_8(link); break; 648 default: SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"No support for arbitrary block sizes"); 649 } 650 } 651 ierr = MPI_Type_dup(unit,&link->unit);CHKERRQ(ierr); 652 PetscFunctionReturn(0); 653 } 654 655 static PetscErrorCode PetscSFBasicPackGetUnpackOp(PetscSF sf,PetscSFBasicPack link,MPI_Op op,void (**UnpackOp)(PetscInt,PetscInt,const PetscInt*,void*,const void*)) 656 { 657 PetscFunctionBegin; 658 *UnpackOp = NULL; 659 if (op == MPIU_REPLACE) *UnpackOp = link->UnpackInsert; 660 else if (op == MPI_SUM || op == MPIU_SUM) *UnpackOp = link->UnpackAdd; 661 else if (op == MPI_PROD) *UnpackOp = link->UnpackMult; 662 else if (op == MPI_MAX || op == MPIU_MAX) *UnpackOp = link->UnpackMax; 663 else if (op == MPI_MIN || op == MPIU_MIN) *UnpackOp = link->UnpackMin; 664 else if (op == MPI_LAND) *UnpackOp = link->UnpackLAND; 665 else if (op == MPI_BAND) *UnpackOp = link->UnpackBAND; 666 else if (op == MPI_LOR) *UnpackOp = link->UnpackLOR; 667 else if (op == MPI_BOR) *UnpackOp = link->UnpackBOR; 668 else if (op == MPI_LXOR) *UnpackOp = link->UnpackLXOR; 669 else if (op == MPI_BXOR) *UnpackOp = link->UnpackBXOR; 670 else if (op == MPI_MAXLOC) *UnpackOp = link->UnpackMaxloc; 671 else if (op == MPI_MINLOC) *UnpackOp = link->UnpackMinloc; 672 else *UnpackOp = NULL; 673 PetscFunctionReturn(0); 674 } 675 static PetscErrorCode PetscSFBasicPackGetFetchAndOp(PetscSF sf,PetscSFBasicPack link,MPI_Op op,void (**FetchAndOp)(PetscInt,PetscInt,const PetscInt*,void*,void*)) 676 { 677 PetscFunctionBegin; 678 *FetchAndOp = NULL; 679 if (op == MPIU_REPLACE) *FetchAndOp = link->FetchAndInsert; 680 else if (op == MPI_SUM || op == MPIU_SUM) *FetchAndOp = link->FetchAndAdd; 681 else if (op == MPI_MAX || op == MPIU_MAX) *FetchAndOp = link->FetchAndMax; 682 else if (op == MPI_MIN || op == MPIU_MIN) *FetchAndOp = link->FetchAndMin; 683 else if (op == MPI_MAXLOC) *FetchAndOp = link->FetchAndMaxloc; 684 else if (op == MPI_MINLOC) *FetchAndOp = link->FetchAndMinloc; 685 else if (op == MPI_PROD) *FetchAndOp = link->FetchAndMult; 686 else if (op == MPI_LAND) *FetchAndOp = link->FetchAndLAND; 687 else if (op == MPI_BAND) *FetchAndOp = link->FetchAndBAND; 688 else if (op == MPI_LOR) *FetchAndOp = link->FetchAndLOR; 689 else if (op == MPI_BOR) *FetchAndOp = link->FetchAndBOR; 690 else if (op == MPI_LXOR) *FetchAndOp = link->FetchAndLXOR; 691 else if (op == MPI_BXOR) *FetchAndOp = link->FetchAndBXOR; 692 else SETERRQ(PetscObjectComm((PetscObject)sf),PETSC_ERR_SUP,"No support for MPI_Op"); 693 PetscFunctionReturn(0); 694 } 695 696 static PetscErrorCode PetscSFBasicPackGetReqs(PetscSF sf,PetscSFBasicPack link,MPI_Request **rootreqs,MPI_Request **leafreqs) 697 { 698 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 699 700 PetscFunctionBegin; 701 if (rootreqs) *rootreqs = link->requests; 702 if (leafreqs) *leafreqs = link->requests + bas->niranks; 703 PetscFunctionReturn(0); 704 } 705 706 static PetscErrorCode PetscSFBasicPackWaitall(PetscSF sf,PetscSFBasicPack link) 707 { 708 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 709 PetscErrorCode ierr; 710 711 PetscFunctionBegin; 712 ierr = MPI_Waitall(bas->niranks+sf->nranks,link->requests,MPI_STATUSES_IGNORE);CHKERRQ(ierr); 713 PetscFunctionReturn(0); 714 } 715 716 static PetscErrorCode PetscSFBasicGetRootInfo(PetscSF sf,PetscInt *nrootranks,const PetscMPIInt **rootranks,const PetscInt **rootoffset,const PetscInt **rootloc) 717 { 718 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 719 720 PetscFunctionBegin; 721 if (nrootranks) *nrootranks = bas->niranks; 722 if (rootranks) *rootranks = bas->iranks; 723 if (rootoffset) *rootoffset = bas->ioffset; 724 if (rootloc) *rootloc = bas->irootloc; 725 PetscFunctionReturn(0); 726 } 727 728 static PetscErrorCode PetscSFBasicGetLeafInfo(PetscSF sf,PetscInt *nleafranks,const PetscMPIInt **leafranks,const PetscInt **leafoffset,const PetscInt **leafloc) 729 { 730 PetscFunctionBegin; 731 if (nleafranks) *nleafranks = sf->nranks; 732 if (leafranks) *leafranks = sf->ranks; 733 if (leafoffset) *leafoffset = sf->roffset; 734 if (leafloc) *leafloc = sf->rmine; 735 PetscFunctionReturn(0); 736 } 737 738 static PetscErrorCode PetscSFBasicGetPack(PetscSF sf,MPI_Datatype unit,const void *key,PetscSFBasicPack *mylink) 739 { 740 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 741 PetscErrorCode ierr; 742 PetscSFBasicPack link,*p; 743 PetscInt nrootranks,nleafranks; 744 const PetscInt *rootoffset,*leafoffset; 745 746 PetscFunctionBegin; 747 /* Look for types in cache */ 748 for (p=&bas->avail; (link=*p); p=&link->next) { 749 PetscBool match; 750 ierr = MPIPetsc_Type_compare(unit,link->unit,&match);CHKERRQ(ierr); 751 if (match) { 752 *p = link->next; /* Remove from available list */ 753 goto found; 754 } 755 } 756 757 /* Create new composite types for each send rank */ 758 ierr = PetscSFBasicGetRootInfo(sf,&nrootranks,NULL,&rootoffset,NULL);CHKERRQ(ierr); 759 ierr = PetscSFBasicGetLeafInfo(sf,&nleafranks,NULL,&leafoffset,NULL);CHKERRQ(ierr); 760 ierr = PetscNew(&link);CHKERRQ(ierr); 761 ierr = PetscSFBasicPackTypeSetup(link,unit);CHKERRQ(ierr); 762 ierr = PetscCalloc2(rootoffset[nrootranks]*link->unitbytes,&link->root,leafoffset[nleafranks]*link->unitbytes,&link->leaf);CHKERRQ(ierr); 763 ierr = PetscCalloc1(nrootranks+nleafranks,&link->requests);CHKERRQ(ierr); 764 765 found: 766 link->key = key; 767 link->next = bas->inuse; 768 bas->inuse = link; 769 770 *mylink = link; 771 PetscFunctionReturn(0); 772 } 773 774 static PetscErrorCode PetscSFBasicGetPackInUse(PetscSF sf,MPI_Datatype unit,const void *key,PetscCopyMode cmode,PetscSFBasicPack *mylink) 775 { 776 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 777 PetscErrorCode ierr; 778 PetscSFBasicPack link,*p; 779 780 PetscFunctionBegin; 781 /* Look for types in cache */ 782 for (p=&bas->inuse; (link=*p); p=&link->next) { 783 PetscBool match; 784 ierr = MPIPetsc_Type_compare(unit,link->unit,&match);CHKERRQ(ierr); 785 if (match && (key == link->key)) { 786 switch (cmode) { 787 case PETSC_OWN_POINTER: *p = link->next; break; /* Remove from inuse list */ 788 case PETSC_USE_POINTER: break; 789 default: SETERRQ(PETSC_COMM_SELF,PETSC_ERR_ARG_INCOMP,"invalid cmode"); 790 } 791 *mylink = link; 792 PetscFunctionReturn(0); 793 } 794 } 795 SETERRQ(PetscObjectComm((PetscObject)sf),PETSC_ERR_ARG_WRONGSTATE,"Could not find pack"); 796 PetscFunctionReturn(0); 797 } 798 799 static PetscErrorCode PetscSFBasicReclaimPack(PetscSF sf,PetscSFBasicPack *link) 800 { 801 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 802 803 PetscFunctionBegin; 804 (*link)->key = NULL; 805 (*link)->next = bas->avail; 806 bas->avail = *link; 807 *link = NULL; 808 PetscFunctionReturn(0); 809 } 810 811 static PetscErrorCode PetscSFSetFromOptions_Basic(PetscOptionItems *PetscOptionsObject,PetscSF sf) 812 { 813 PetscErrorCode ierr; 814 815 PetscFunctionBegin; 816 ierr = PetscOptionsHead(PetscOptionsObject,"PetscSF Basic options");CHKERRQ(ierr); 817 ierr = PetscOptionsTail();CHKERRQ(ierr); 818 PetscFunctionReturn(0); 819 } 820 821 static PetscErrorCode PetscSFReset_Basic(PetscSF sf) 822 { 823 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 824 PetscErrorCode ierr; 825 PetscSFBasicPack link,next; 826 827 PetscFunctionBegin; 828 ierr = PetscFree(bas->iranks);CHKERRQ(ierr); 829 ierr = PetscFree2(bas->ioffset,bas->irootloc);CHKERRQ(ierr); 830 if (bas->inuse) SETERRQ(PetscObjectComm((PetscObject)sf),PETSC_ERR_ARG_WRONGSTATE,"Outstanding operation has not been completed"); 831 for (link=bas->avail; link; link=next) { 832 next = link->next; 833 #if defined(PETSC_HAVE_MPI_TYPE_DUP) 834 ierr = MPI_Type_free(&link->unit);CHKERRQ(ierr); 835 #endif 836 ierr = PetscFree2(link->root,link->leaf);CHKERRQ(ierr); 837 ierr = PetscFree(link->requests);CHKERRQ(ierr); 838 ierr = PetscFree(link);CHKERRQ(ierr); 839 } 840 bas->avail = NULL; 841 PetscFunctionReturn(0); 842 } 843 844 static PetscErrorCode PetscSFDestroy_Basic(PetscSF sf) 845 { 846 PetscErrorCode ierr; 847 848 PetscFunctionBegin; 849 ierr = PetscSFReset_Basic(sf);CHKERRQ(ierr); 850 ierr = PetscFree(sf->data);CHKERRQ(ierr); 851 PetscFunctionReturn(0); 852 } 853 854 static PetscErrorCode PetscSFView_Basic(PetscSF sf,PetscViewer viewer) 855 { 856 /* PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; */ 857 PetscErrorCode ierr; 858 PetscBool iascii; 859 860 PetscFunctionBegin; 861 ierr = PetscObjectTypeCompare((PetscObject)viewer,PETSCVIEWERASCII,&iascii);CHKERRQ(ierr); 862 if (iascii) { 863 ierr = PetscViewerASCIIPrintf(viewer," sort=%s\n",sf->rankorder ? "rank-order" : "unordered");CHKERRQ(ierr); 864 } 865 PetscFunctionReturn(0); 866 } 867 868 /* Send from roots to leaves */ 869 static PetscErrorCode PetscSFBcastBegin_Basic(PetscSF sf,MPI_Datatype unit,const void *rootdata,void *leafdata) 870 { 871 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 872 PetscErrorCode ierr; 873 PetscSFBasicPack link; 874 PetscInt i,nrootranks,nleafranks; 875 const PetscInt *rootoffset,*leafoffset,*rootloc,*leafloc; 876 const PetscMPIInt *rootranks,*leafranks; 877 MPI_Request *rootreqs,*leafreqs; 878 size_t unitbytes; 879 880 PetscFunctionBegin; 881 ierr = PetscSFBasicGetRootInfo(sf,&nrootranks,&rootranks,&rootoffset,&rootloc);CHKERRQ(ierr); 882 ierr = PetscSFBasicGetLeafInfo(sf,&nleafranks,&leafranks,&leafoffset,&leafloc);CHKERRQ(ierr); 883 ierr = PetscSFBasicGetPack(sf,unit,rootdata,&link);CHKERRQ(ierr); 884 885 unitbytes = link->unitbytes; 886 887 ierr = PetscSFBasicPackGetReqs(sf,link,&rootreqs,&leafreqs);CHKERRQ(ierr); 888 /* Eagerly post leaf receives */ 889 for (i=0; i<nleafranks; i++) { 890 PetscMPIInt n = leafoffset[i+1] - leafoffset[i]; 891 ierr = MPI_Irecv(link->leaf+leafoffset[i]*unitbytes,n,unit,leafranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&leafreqs[i]);CHKERRQ(ierr); 892 } 893 /* Pack and send root data */ 894 for (i=0; i<nrootranks; i++) { 895 PetscMPIInt n = rootoffset[i+1] - rootoffset[i]; 896 void *packstart = link->root+rootoffset[i]*unitbytes; 897 (*link->Pack)(n,link->bs,rootloc+rootoffset[i],rootdata,packstart); 898 ierr = MPI_Isend(packstart,n,unit,rootranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&rootreqs[i]);CHKERRQ(ierr); 899 } 900 PetscFunctionReturn(0); 901 } 902 903 PetscErrorCode PetscSFBcastEnd_Basic(PetscSF sf,MPI_Datatype unit,const void *rootdata,void *leafdata) 904 { 905 PetscErrorCode ierr; 906 PetscSFBasicPack link; 907 PetscInt i,nleafranks; 908 const PetscInt *leafoffset,*leafloc; 909 910 PetscFunctionBegin; 911 ierr = PetscSFBasicGetPackInUse(sf,unit,rootdata,PETSC_OWN_POINTER,&link);CHKERRQ(ierr); 912 ierr = PetscSFBasicPackWaitall(sf,link);CHKERRQ(ierr); 913 ierr = PetscSFBasicGetLeafInfo(sf,&nleafranks,NULL,&leafoffset,&leafloc);CHKERRQ(ierr); 914 for (i=0; i<nleafranks; i++) { 915 PetscMPIInt n = leafoffset[i+1] - leafoffset[i]; 916 const void *packstart = link->leaf+leafoffset[i]*link->unitbytes; 917 (*link->UnpackInsert)(n,link->bs,leafloc+leafoffset[i],leafdata,packstart); 918 } 919 ierr = PetscSFBasicReclaimPack(sf,&link);CHKERRQ(ierr); 920 PetscFunctionReturn(0); 921 } 922 923 /* leaf -> root with reduction */ 924 PetscErrorCode PetscSFReduceBegin_Basic(PetscSF sf,MPI_Datatype unit,const void *leafdata,void *rootdata,MPI_Op op) 925 { 926 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 927 PetscSFBasicPack link; 928 PetscErrorCode ierr; 929 PetscInt i,nrootranks,nleafranks; 930 const PetscInt *rootoffset,*leafoffset,*rootloc,*leafloc; 931 const PetscMPIInt *rootranks,*leafranks; 932 MPI_Request *rootreqs,*leafreqs; 933 size_t unitbytes; 934 935 PetscFunctionBegin; 936 ierr = PetscSFBasicGetRootInfo(sf,&nrootranks,&rootranks,&rootoffset,&rootloc);CHKERRQ(ierr); 937 ierr = PetscSFBasicGetLeafInfo(sf,&nleafranks,&leafranks,&leafoffset,&leafloc);CHKERRQ(ierr); 938 ierr = PetscSFBasicGetPack(sf,unit,rootdata,&link);CHKERRQ(ierr); 939 940 unitbytes = link->unitbytes; 941 942 ierr = PetscSFBasicPackGetReqs(sf,link,&rootreqs,&leafreqs);CHKERRQ(ierr); 943 /* Eagerly post root receives */ 944 for (i=0; i<nrootranks; i++) { 945 PetscMPIInt n = rootoffset[i+1] - rootoffset[i]; 946 ierr = MPI_Irecv(link->root+rootoffset[i]*unitbytes,n,unit,rootranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&rootreqs[i]);CHKERRQ(ierr); 947 } 948 /* Pack and send leaf data */ 949 for (i=0; i<nleafranks; i++) { 950 PetscMPIInt n = leafoffset[i+1] - leafoffset[i]; 951 void *packstart = link->leaf+leafoffset[i]*unitbytes; 952 (*link->Pack)(n,link->bs,leafloc+leafoffset[i],leafdata,packstart); 953 ierr = MPI_Isend(packstart,n,unit,leafranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&leafreqs[i]);CHKERRQ(ierr); 954 } 955 PetscFunctionReturn(0); 956 } 957 958 static PetscErrorCode PetscSFReduceEnd_Basic(PetscSF sf,MPI_Datatype unit,const void *leafdata,void *rootdata,MPI_Op op) 959 { 960 void (*UnpackOp)(PetscInt,PetscInt,const PetscInt*,void*,const void*); 961 PetscErrorCode ierr; 962 PetscSFBasicPack link; 963 PetscInt i,nrootranks; 964 PetscMPIInt typesize = -1; 965 const PetscInt *rootoffset,*rootloc; 966 967 PetscFunctionBegin; 968 ierr = PetscSFBasicGetPackInUse(sf,unit,rootdata,PETSC_OWN_POINTER,&link);CHKERRQ(ierr); 969 /* This implementation could be changed to unpack as receives arrive, at the cost of non-determinism */ 970 ierr = PetscSFBasicPackWaitall(sf,link);CHKERRQ(ierr); 971 ierr = PetscSFBasicGetRootInfo(sf,&nrootranks,NULL,&rootoffset,&rootloc);CHKERRQ(ierr); 972 ierr = PetscSFBasicPackGetUnpackOp(sf,link,op,&UnpackOp);CHKERRQ(ierr); 973 if (UnpackOp) { 974 typesize = link->unitbytes; 975 } 976 else { 977 ierr = MPI_Type_size(unit,&typesize);CHKERRQ(ierr); 978 } 979 for (i=0; i<nrootranks; i++) { 980 PetscMPIInt n = rootoffset[i+1] - rootoffset[i]; 981 char *packstart = (char *) link->root+rootoffset[i]*typesize; 982 983 if (UnpackOp) { 984 (*UnpackOp)(n,link->bs,rootloc+rootoffset[i],rootdata,(const void *)packstart); 985 } 986 #if PETSC_HAVE_MPI_REDUCE_LOCAL 987 else if (n) { /* the op should be defined to operate on the whole datatype, so we ignore link->bs */ 988 PetscInt j; 989 990 for (j = 0; j < n; j++) { 991 ierr = MPI_Reduce_local(packstart+j*typesize,((char *) rootdata)+(rootloc[rootoffset[i]+j])*typesize,1,unit,op);CHKERRQ(ierr); 992 } 993 } 994 #else 995 else { 996 SETERRQ(PETSC_COMM_SELF,PETSC_ERR_SUP,"No unpacking reduction operation for this MPI_Op"); 997 } 998 #endif 999 } 1000 ierr = PetscSFBasicReclaimPack(sf,&link);CHKERRQ(ierr); 1001 PetscFunctionReturn(0); 1002 } 1003 1004 static PetscErrorCode PetscSFFetchAndOpBegin_Basic(PetscSF sf,MPI_Datatype unit,void *rootdata,const void *leafdata,void *leafupdate,MPI_Op op) 1005 { 1006 PetscErrorCode ierr; 1007 1008 PetscFunctionBegin; 1009 ierr = PetscSFReduceBegin_Basic(sf,unit,leafdata,rootdata,op);CHKERRQ(ierr); 1010 PetscFunctionReturn(0); 1011 } 1012 1013 static PetscErrorCode PetscSFFetchAndOpEnd_Basic(PetscSF sf,MPI_Datatype unit,void *rootdata,const void *leafdata,void *leafupdate,MPI_Op op) 1014 { 1015 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 1016 void (*FetchAndOp)(PetscInt,PetscInt,const PetscInt*,void*,void*); 1017 PetscErrorCode ierr; 1018 PetscSFBasicPack link; 1019 PetscInt i,nrootranks,nleafranks; 1020 const PetscInt *rootoffset,*leafoffset,*rootloc,*leafloc; 1021 const PetscMPIInt *rootranks,*leafranks; 1022 MPI_Request *rootreqs,*leafreqs; 1023 size_t unitbytes; 1024 1025 PetscFunctionBegin; 1026 ierr = PetscSFBasicGetPackInUse(sf,unit,rootdata,PETSC_OWN_POINTER,&link);CHKERRQ(ierr); 1027 /* This implementation could be changed to unpack as receives arrive, at the cost of non-determinism */ 1028 ierr = PetscSFBasicPackWaitall(sf,link);CHKERRQ(ierr); 1029 unitbytes = link->unitbytes; 1030 ierr = PetscSFBasicGetRootInfo(sf,&nrootranks,&rootranks,&rootoffset,&rootloc);CHKERRQ(ierr); 1031 ierr = PetscSFBasicGetLeafInfo(sf,&nleafranks,&leafranks,&leafoffset,&leafloc);CHKERRQ(ierr); 1032 ierr = PetscSFBasicPackGetReqs(sf,link,&rootreqs,&leafreqs);CHKERRQ(ierr); 1033 /* Post leaf receives */ 1034 for (i=0; i<nleafranks; i++) { 1035 PetscMPIInt n = leafoffset[i+1] - leafoffset[i]; 1036 ierr = MPI_Irecv(link->leaf+leafoffset[i]*unitbytes,n,unit,leafranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&leafreqs[i]);CHKERRQ(ierr); 1037 } 1038 /* Process local fetch-and-op, post root sends */ 1039 ierr = PetscSFBasicPackGetFetchAndOp(sf,link,op,&FetchAndOp);CHKERRQ(ierr); 1040 for (i=0; i<nrootranks; i++) { 1041 PetscMPIInt n = rootoffset[i+1] - rootoffset[i]; 1042 void *packstart = link->root+rootoffset[i]*unitbytes; 1043 1044 (*FetchAndOp)(n,link->bs,rootloc+rootoffset[i],rootdata,packstart); 1045 ierr = MPI_Isend(packstart,n,unit,rootranks[i],bas->tag,PetscObjectComm((PetscObject)sf),&rootreqs[i]);CHKERRQ(ierr); 1046 } 1047 ierr = PetscSFBasicPackWaitall(sf,link);CHKERRQ(ierr); 1048 for (i=0; i<nleafranks; i++) { 1049 PetscMPIInt n = leafoffset[i+1] - leafoffset[i]; 1050 const void *packstart = link->leaf+leafoffset[i]*unitbytes; 1051 (*link->UnpackInsert)(n,link->bs,leafloc+leafoffset[i],leafupdate,packstart); 1052 } 1053 ierr = PetscSFBasicReclaimPack(sf,&link);CHKERRQ(ierr); 1054 PetscFunctionReturn(0); 1055 } 1056 1057 PETSC_EXTERN PetscErrorCode PetscSFCreate_Basic(PetscSF sf) 1058 { 1059 PetscSF_Basic *bas = (PetscSF_Basic*)sf->data; 1060 PetscErrorCode ierr; 1061 1062 PetscFunctionBegin; 1063 sf->ops->SetUp = PetscSFSetUp_Basic; 1064 sf->ops->SetFromOptions = PetscSFSetFromOptions_Basic; 1065 sf->ops->Reset = PetscSFReset_Basic; 1066 sf->ops->Destroy = PetscSFDestroy_Basic; 1067 sf->ops->View = PetscSFView_Basic; 1068 sf->ops->BcastBegin = PetscSFBcastBegin_Basic; 1069 sf->ops->BcastEnd = PetscSFBcastEnd_Basic; 1070 sf->ops->ReduceBegin = PetscSFReduceBegin_Basic; 1071 sf->ops->ReduceEnd = PetscSFReduceEnd_Basic; 1072 sf->ops->FetchAndOpBegin = PetscSFFetchAndOpBegin_Basic; 1073 sf->ops->FetchAndOpEnd = PetscSFFetchAndOpEnd_Basic; 1074 1075 ierr = PetscNewLog(sf,&bas);CHKERRQ(ierr); 1076 sf->data = (void*)bas; 1077 PetscFunctionReturn(0); 1078 } 1079