1 // Copyright (c) 2017-2022, Lawrence Livermore National Security, LLC and other CEED contributors. 2 // All Rights Reserved. See the top-level LICENSE and NOTICE files for details. 3 // 4 // SPDX-License-Identifier: BSD-2-Clause 5 // 6 // This file is part of CEED: http://github.com/ceed 7 8 #include <ceed/backend.h> 9 #include <ceed/ceed.h> 10 11 #include <cmath> 12 #include <string> 13 #include <sycl/sycl.hpp> 14 15 #include "ceed-sycl-ref.hpp" 16 17 //------------------------------------------------------------------------------ 18 // Check if host/device sync is needed 19 //------------------------------------------------------------------------------ 20 static inline int CeedVectorNeedSync_Sycl(const CeedVector vec, CeedMemType mem_type, bool *need_sync) { 21 bool has_valid_array = false; 22 CeedVector_Sycl *impl; 23 24 CeedCallBackend(CeedVectorGetData(vec, &impl)); 25 CeedCallBackend(CeedVectorHasValidArray(vec, &has_valid_array)); 26 switch (mem_type) { 27 case CEED_MEM_HOST: 28 *need_sync = has_valid_array && !impl->h_array; 29 break; 30 case CEED_MEM_DEVICE: 31 *need_sync = has_valid_array && !impl->d_array; 32 break; 33 } 34 return CEED_ERROR_SUCCESS; 35 } 36 37 //------------------------------------------------------------------------------ 38 // Sync host to device 39 //------------------------------------------------------------------------------ 40 static inline int CeedVectorSyncH2D_Sycl(const CeedVector vec) { 41 Ceed ceed; 42 Ceed_Sycl *data; 43 CeedSize length; 44 CeedVector_Sycl *impl; 45 46 CeedCallBackend(CeedVectorGetCeed(vec, &ceed)); 47 CeedCallBackend(CeedVectorGetData(vec, &impl)); 48 CeedCallBackend(CeedGetData(ceed, &data)); 49 CeedCheck(impl->h_array, ceed, CEED_ERROR_BACKEND, "No valid host data to sync to device"); 50 51 CeedCallBackend(CeedVectorGetLength(vec, &length)); 52 if (impl->d_array_borrowed) { 53 impl->d_array = impl->d_array_borrowed; 54 } else if (impl->d_array_owned) { 55 impl->d_array = impl->d_array_owned; 56 } else { 57 CeedCallSycl(ceed, impl->d_array_owned = sycl::malloc_device<CeedScalar>(length, data->sycl_device, data->sycl_context)); 58 impl->d_array = impl->d_array_owned; 59 } 60 61 sycl::event e = data->sycl_queue.ext_oneapi_submit_barrier(); 62 // Copy from host to device 63 sycl::event copy_event = data->sycl_queue.copy<CeedScalar>(impl->h_array, impl->d_array, length, {e}); 64 // Wait for copy to finish and handle exceptions. 65 CeedCallSycl(ceed, copy_event.wait_and_throw()); 66 return CEED_ERROR_SUCCESS; 67 } 68 69 //------------------------------------------------------------------------------ 70 // Sync device to host 71 //------------------------------------------------------------------------------ 72 static inline int CeedVectorSyncD2H_Sycl(const CeedVector vec) { 73 Ceed ceed; 74 Ceed_Sycl *data; 75 CeedSize length; 76 CeedVector_Sycl *impl; 77 78 CeedCallBackend(CeedVectorGetCeed(vec, &ceed)); 79 CeedCallBackend(CeedVectorGetData(vec, &impl)); 80 CeedCallBackend(CeedGetData(ceed, &data)); 81 82 CeedCheck(impl->d_array, ceed, CEED_ERROR_BACKEND, "No valid device data to sync to host"); 83 84 CeedCallBackend(CeedVectorGetLength(vec, &length)); 85 if (impl->h_array_borrowed) { 86 impl->h_array = impl->h_array_borrowed; 87 } else if (impl->h_array_owned) { 88 impl->h_array = impl->h_array_owned; 89 } else { 90 CeedCallBackend(CeedCalloc(length, &impl->h_array_owned)); 91 impl->h_array = impl->h_array_owned; 92 } 93 94 // Order queue 95 sycl::event e = data->sycl_queue.ext_oneapi_submit_barrier(); 96 // Copy from device to host 97 sycl::event copy_event = data->sycl_queue.copy<CeedScalar>(impl->d_array, impl->h_array, length, {e}); 98 // Wait for copy to finish and handle exceptions. 99 CeedCallSycl(ceed, copy_event.wait_and_throw()); 100 return CEED_ERROR_SUCCESS; 101 } 102 103 //------------------------------------------------------------------------------ 104 // Sync arrays 105 //------------------------------------------------------------------------------ 106 static int CeedVectorSyncArray_Sycl(const CeedVector vec, CeedMemType mem_type) { 107 bool need_sync = false; 108 109 // Check whether device/host sync is needed 110 CeedCallBackend(CeedVectorNeedSync_Sycl(vec, mem_type, &need_sync)); 111 if (!need_sync) return CEED_ERROR_SUCCESS; 112 113 switch (mem_type) { 114 case CEED_MEM_HOST: 115 return CeedVectorSyncD2H_Sycl(vec); 116 case CEED_MEM_DEVICE: 117 return CeedVectorSyncH2D_Sycl(vec); 118 } 119 return CEED_ERROR_UNSUPPORTED; 120 } 121 122 //------------------------------------------------------------------------------ 123 // Set all pointers as invalid 124 //------------------------------------------------------------------------------ 125 static inline int CeedVectorSetAllInvalid_Sycl(const CeedVector vec) { 126 CeedVector_Sycl *impl; 127 128 CeedCallBackend(CeedVectorGetData(vec, &impl)); 129 impl->h_array = NULL; 130 impl->d_array = NULL; 131 return CEED_ERROR_SUCCESS; 132 } 133 134 //------------------------------------------------------------------------------ 135 // Check if CeedVector has any valid pointer 136 //------------------------------------------------------------------------------ 137 static inline int CeedVectorHasValidArray_Sycl(const CeedVector vec, bool *has_valid_array) { 138 CeedVector_Sycl *impl; 139 140 CeedCallBackend(CeedVectorGetData(vec, &impl)); 141 *has_valid_array = impl->h_array || impl->d_array; 142 return CEED_ERROR_SUCCESS; 143 } 144 145 //------------------------------------------------------------------------------ 146 // Check if has array of given type 147 //------------------------------------------------------------------------------ 148 static inline int CeedVectorHasArrayOfType_Sycl(const CeedVector vec, CeedMemType mem_type, bool *has_array_of_type) { 149 CeedVector_Sycl *impl; 150 151 CeedCallBackend(CeedVectorGetData(vec, &impl)); 152 switch (mem_type) { 153 case CEED_MEM_HOST: 154 *has_array_of_type = impl->h_array_borrowed || impl->h_array_owned; 155 break; 156 case CEED_MEM_DEVICE: 157 *has_array_of_type = impl->d_array_borrowed || impl->d_array_owned; 158 break; 159 } 160 return CEED_ERROR_SUCCESS; 161 } 162 163 //------------------------------------------------------------------------------ 164 // Check if has borrowed array of given type 165 //------------------------------------------------------------------------------ 166 static inline int CeedVectorHasBorrowedArrayOfType_Sycl(const CeedVector vec, CeedMemType mem_type, bool *has_borrowed_array_of_type) { 167 CeedVector_Sycl *impl; 168 169 CeedCallBackend(CeedVectorGetData(vec, &impl)); 170 switch (mem_type) { 171 case CEED_MEM_HOST: 172 *has_borrowed_array_of_type = impl->h_array_borrowed; 173 break; 174 case CEED_MEM_DEVICE: 175 *has_borrowed_array_of_type = impl->d_array_borrowed; 176 break; 177 } 178 return CEED_ERROR_SUCCESS; 179 } 180 181 //------------------------------------------------------------------------------ 182 // Set array from host 183 //------------------------------------------------------------------------------ 184 static int CeedVectorSetArrayHost_Sycl(const CeedVector vec, const CeedCopyMode copy_mode, CeedScalar *array) { 185 CeedSize length; 186 CeedVector_Sycl *impl; 187 188 CeedCallBackend(CeedVectorGetData(vec, &impl)); 189 CeedCallBackend(CeedVectorGetLength(vec, &length)); 190 191 CeedCallBackend(CeedSetHostCeedScalarArray(array, copy_mode, length, (const CeedScalar **)&impl->h_array_owned, 192 (const CeedScalar **)&impl->h_array_borrowed, (const CeedScalar **)&impl->h_array)); 193 return CEED_ERROR_SUCCESS; 194 } 195 196 //------------------------------------------------------------------------------ 197 // Set array from device 198 //------------------------------------------------------------------------------ 199 static int CeedVectorSetArrayDevice_Sycl(const CeedVector vec, const CeedCopyMode copy_mode, CeedScalar *array) { 200 CeedSize length; 201 Ceed ceed; 202 Ceed_Sycl *data; 203 CeedVector_Sycl *impl; 204 205 CeedCallBackend(CeedVectorGetCeed(vec, &ceed)); 206 CeedCallBackend(CeedVectorGetData(vec, &impl)); 207 CeedCallBackend(CeedGetData(ceed, &data)); 208 CeedCallBackend(CeedVectorGetLength(vec, &length)); 209 210 // Order queue 211 sycl::event e = data->sycl_queue.ext_oneapi_submit_barrier(); 212 213 switch (copy_mode) { 214 case CEED_COPY_VALUES: { 215 if (!impl->d_array_owned) 216 CeedCallSycl(ceed, impl->d_array_owned = sycl::malloc_device<CeedScalar>(length, data->sycl_device, data->sycl_context)); 217 if (array) { 218 sycl::event copy_event = data->sycl_queue.copy<CeedScalar>(array, impl->d_array, length, {e}); 219 // Wait for copy to finish and handle exceptions. 220 CeedCallSycl(ceed, copy_event.wait_and_throw()); 221 } 222 impl->d_array_borrowed = NULL; 223 impl->d_array = impl->d_array_owned; 224 } break; 225 case CEED_OWN_POINTER: 226 if (impl->d_array_owned) { 227 // Wait for all work to finish before freeing memory 228 CeedCallSycl(ceed, data->sycl_queue.wait_and_throw()); 229 CeedCallSycl(ceed, sycl::free(impl->d_array_owned, data->sycl_context)); 230 } 231 impl->d_array_owned = array; 232 impl->d_array_borrowed = NULL; 233 impl->d_array = impl->d_array_owned; 234 break; 235 case CEED_USE_POINTER: 236 if (impl->d_array_owned) { 237 // Wait for all work to finish before freeing memory 238 CeedCallSycl(ceed, data->sycl_queue.wait_and_throw()); 239 CeedCallSycl(ceed, sycl::free(impl->d_array_owned, data->sycl_context)); 240 } 241 impl->d_array_owned = NULL; 242 impl->d_array_borrowed = array; 243 impl->d_array = impl->d_array_borrowed; 244 break; 245 } 246 return CEED_ERROR_SUCCESS; 247 } 248 249 //------------------------------------------------------------------------------ 250 // Set the array used by a vector, 251 // freeing any previously allocated array if applicable 252 //------------------------------------------------------------------------------ 253 static int CeedVectorSetArray_Sycl(const CeedVector vec, const CeedMemType mem_type, const CeedCopyMode copy_mode, CeedScalar *array) { 254 CeedVector_Sycl *impl; 255 256 CeedCallBackend(CeedVectorGetData(vec, &impl)); 257 258 CeedCallBackend(CeedVectorSetAllInvalid_Sycl(vec)); 259 switch (mem_type) { 260 case CEED_MEM_HOST: 261 return CeedVectorSetArrayHost_Sycl(vec, copy_mode, array); 262 case CEED_MEM_DEVICE: 263 return CeedVectorSetArrayDevice_Sycl(vec, copy_mode, array); 264 } 265 return CEED_ERROR_UNSUPPORTED; 266 } 267 268 //------------------------------------------------------------------------------ 269 // Set host array to value 270 //------------------------------------------------------------------------------ 271 static int CeedHostSetValue_Sycl(CeedScalar *h_array, CeedSize length, CeedScalar val) { 272 for (CeedSize i = 0; i < length; i++) h_array[i] = val; 273 return CEED_ERROR_SUCCESS; 274 } 275 276 //------------------------------------------------------------------------------ 277 // Set device array to value 278 //------------------------------------------------------------------------------ 279 static int CeedDeviceSetValue_Sycl(sycl::queue &sycl_queue, CeedScalar *d_array, CeedSize length, CeedScalar val) { 280 // Order queue 281 sycl::event e = sycl_queue.ext_oneapi_submit_barrier(); 282 sycl_queue.fill(d_array, val, length, {e}); 283 return CEED_ERROR_SUCCESS; 284 } 285 286 //------------------------------------------------------------------------------ 287 // Set a vector to a value, 288 //------------------------------------------------------------------------------ 289 static int CeedVectorSetValue_Sycl(CeedVector vec, CeedScalar val) { 290 Ceed ceed; 291 Ceed_Sycl *data; 292 CeedSize length; 293 CeedVector_Sycl *impl; 294 295 CeedCallBackend(CeedVectorGetCeed(vec, &ceed)); 296 CeedCallBackend(CeedVectorGetData(vec, &impl)); 297 CeedCallBackend(CeedVectorGetLength(vec, &length)); 298 CeedCallBackend(CeedGetData(ceed, &data)); 299 300 // Set value for synced device/host array 301 if (!impl->d_array && !impl->h_array) { 302 if (impl->d_array_borrowed) { 303 impl->d_array = impl->d_array_borrowed; 304 } else if (impl->h_array_borrowed) { 305 impl->h_array = impl->h_array_borrowed; 306 } else if (impl->d_array_owned) { 307 impl->d_array = impl->d_array_owned; 308 } else if (impl->h_array_owned) { 309 impl->h_array = impl->h_array_owned; 310 } else { 311 CeedCallBackend(CeedVectorSetArray(vec, CEED_MEM_DEVICE, CEED_COPY_VALUES, NULL)); 312 } 313 } 314 if (impl->d_array) { 315 CeedCallBackend(CeedDeviceSetValue_Sycl(data->sycl_queue, impl->d_array, length, val)); 316 impl->h_array = NULL; 317 } 318 if (impl->h_array) { 319 CeedCallBackend(CeedHostSetValue_Sycl(impl->h_array, length, val)); 320 impl->d_array = NULL; 321 } 322 return CEED_ERROR_SUCCESS; 323 } 324 325 //------------------------------------------------------------------------------ 326 // Vector Take Array 327 //------------------------------------------------------------------------------ 328 static int CeedVectorTakeArray_Sycl(CeedVector vec, CeedMemType mem_type, CeedScalar **array) { 329 Ceed ceed; 330 Ceed_Sycl *data; 331 CeedVector_Sycl *impl; 332 333 CeedCallBackend(CeedVectorGetCeed(vec, &ceed)); 334 CeedCallBackend(CeedVectorGetData(vec, &impl)); 335 CeedCallBackend(CeedGetData(ceed, &data)); 336 337 // Order queue 338 data->sycl_queue.ext_oneapi_submit_barrier(); 339 340 // Sync array to requested mem_type 341 CeedCallBackend(CeedVectorSyncArray(vec, mem_type)); 342 343 // Update pointer 344 switch (mem_type) { 345 case CEED_MEM_HOST: 346 (*array) = impl->h_array_borrowed; 347 impl->h_array_borrowed = NULL; 348 impl->h_array = NULL; 349 break; 350 case CEED_MEM_DEVICE: 351 (*array) = impl->d_array_borrowed; 352 impl->d_array_borrowed = NULL; 353 impl->d_array = NULL; 354 break; 355 } 356 return CEED_ERROR_SUCCESS; 357 } 358 359 //------------------------------------------------------------------------------ 360 // Core logic for array syncronization for GetArray. 361 // If a different memory type is most up to date, this will perform a copy 362 //------------------------------------------------------------------------------ 363 static int CeedVectorGetArrayCore_Sycl(const CeedVector vec, const CeedMemType mem_type, CeedScalar **array) { 364 CeedVector_Sycl *impl; 365 366 CeedCallBackend(CeedVectorGetData(vec, &impl)); 367 368 // Sync array to requested mem_type 369 CeedCallBackend(CeedVectorSyncArray(vec, mem_type)); 370 371 // Update pointer 372 switch (mem_type) { 373 case CEED_MEM_HOST: 374 *array = impl->h_array; 375 break; 376 case CEED_MEM_DEVICE: 377 *array = impl->d_array; 378 break; 379 } 380 return CEED_ERROR_SUCCESS; 381 } 382 383 //------------------------------------------------------------------------------ 384 // Get read-only access to a vector via the specified mem_type 385 //------------------------------------------------------------------------------ 386 static int CeedVectorGetArrayRead_Sycl(const CeedVector vec, const CeedMemType mem_type, const CeedScalar **array) { 387 return CeedVectorGetArrayCore_Sycl(vec, mem_type, (CeedScalar **)array); 388 } 389 390 //------------------------------------------------------------------------------ 391 // Get read/write access to a vector via the specified mem_type 392 //------------------------------------------------------------------------------ 393 static int CeedVectorGetArray_Sycl(const CeedVector vec, const CeedMemType mem_type, CeedScalar **array) { 394 CeedVector_Sycl *impl; 395 396 CeedCallBackend(CeedVectorGetData(vec, &impl)); 397 CeedCallBackend(CeedVectorGetArrayCore_Sycl(vec, mem_type, array)); 398 CeedCallBackend(CeedVectorSetAllInvalid_Sycl(vec)); 399 switch (mem_type) { 400 case CEED_MEM_HOST: 401 impl->h_array = *array; 402 break; 403 case CEED_MEM_DEVICE: 404 impl->d_array = *array; 405 break; 406 } 407 return CEED_ERROR_SUCCESS; 408 } 409 410 //------------------------------------------------------------------------------ 411 // Get write access to a vector via the specified mem_type 412 //------------------------------------------------------------------------------ 413 static int CeedVectorGetArrayWrite_Sycl(const CeedVector vec, const CeedMemType mem_type, CeedScalar **array) { 414 bool has_array_of_type = true; 415 CeedVector_Sycl *impl; 416 417 CeedCallBackend(CeedVectorGetData(vec, &impl)); 418 CeedCallBackend(CeedVectorHasArrayOfType_Sycl(vec, mem_type, &has_array_of_type)); 419 if (!has_array_of_type) { 420 // Allocate if array is not yet allocated 421 CeedCallBackend(CeedVectorSetArray(vec, mem_type, CEED_COPY_VALUES, NULL)); 422 } else { 423 // Select dirty array 424 switch (mem_type) { 425 case CEED_MEM_HOST: 426 if (impl->h_array_borrowed) impl->h_array = impl->h_array_borrowed; 427 else impl->h_array = impl->h_array_owned; 428 break; 429 case CEED_MEM_DEVICE: 430 if (impl->d_array_borrowed) impl->d_array = impl->d_array_borrowed; 431 else impl->d_array = impl->d_array_owned; 432 } 433 } 434 return CeedVectorGetArray_Sycl(vec, mem_type, array); 435 } 436 437 //------------------------------------------------------------------------------ 438 // Get the norm of a CeedVector 439 //------------------------------------------------------------------------------ 440 static int CeedVectorNorm_Sycl(CeedVector vec, CeedNormType type, CeedScalar *norm) { 441 Ceed ceed; 442 Ceed_Sycl *data; 443 CeedSize length; 444 const CeedScalar *d_array; 445 CeedVector_Sycl *impl; 446 447 CeedCallBackend(CeedVectorGetCeed(vec, &ceed)); 448 CeedCallBackend(CeedVectorGetData(vec, &impl)); 449 CeedCallBackend(CeedVectorGetLength(vec, &length)); 450 CeedCallBackend(CeedGetData(ceed, &data)); 451 452 // Compute norm 453 CeedCallBackend(CeedVectorGetArrayRead(vec, CEED_MEM_DEVICE, &d_array)); 454 switch (type) { 455 case CEED_NORM_1: { 456 // Order queue 457 sycl::event e = data->sycl_queue.ext_oneapi_submit_barrier(); 458 auto sumReduction = sycl::reduction(impl->reduction_norm, sycl::plus<>(), {sycl::property::reduction::initialize_to_identity{}}); 459 data->sycl_queue.parallel_for(length, {e}, sumReduction, [=](sycl::id<1> i, auto &sum) { sum += abs(d_array[i]); }).wait_and_throw(); 460 } break; 461 case CEED_NORM_2: { 462 // Order queue 463 sycl::event e = data->sycl_queue.ext_oneapi_submit_barrier(); 464 auto sumReduction = sycl::reduction(impl->reduction_norm, sycl::plus<>(), {sycl::property::reduction::initialize_to_identity{}}); 465 data->sycl_queue.parallel_for(length, {e}, sumReduction, [=](sycl::id<1> i, auto &sum) { sum += (d_array[i] * d_array[i]); }).wait_and_throw(); 466 } break; 467 case CEED_NORM_MAX: { 468 // Order queue 469 sycl::event e = data->sycl_queue.ext_oneapi_submit_barrier(); 470 auto maxReduction = sycl::reduction(impl->reduction_norm, sycl::maximum<>(), {sycl::property::reduction::initialize_to_identity{}}); 471 data->sycl_queue.parallel_for(length, {e}, maxReduction, [=](sycl::id<1> i, auto &max) { max.combine(abs(d_array[i])); }).wait_and_throw(); 472 } break; 473 } 474 // L2 norm - square root over reduced value 475 if (type == CEED_NORM_2) *norm = sqrt(*impl->reduction_norm); 476 else *norm = *impl->reduction_norm; 477 CeedCallBackend(CeedVectorRestoreArrayRead(vec, &d_array)); 478 return CEED_ERROR_SUCCESS; 479 } 480 481 //------------------------------------------------------------------------------ 482 // Take reciprocal of a vector on host 483 //------------------------------------------------------------------------------ 484 static int CeedHostReciprocal_Sycl(CeedScalar *h_array, CeedSize length) { 485 for (CeedSize i = 0; i < length; i++) { 486 if (std::fabs(h_array[i]) > CEED_EPSILON) h_array[i] = 1. / h_array[i]; 487 } 488 return CEED_ERROR_SUCCESS; 489 } 490 491 //------------------------------------------------------------------------------ 492 // Take reciprocal of a vector on device 493 //------------------------------------------------------------------------------ 494 static int CeedDeviceReciprocal_Sycl(sycl::queue &sycl_queue, CeedScalar *d_array, CeedSize length) { 495 // Order queue 496 sycl::event e = sycl_queue.ext_oneapi_submit_barrier(); 497 sycl_queue.parallel_for(length, {e}, [=](sycl::id<1> i) { 498 if (std::fabs(d_array[i]) > CEED_EPSILON) d_array[i] = 1. / d_array[i]; 499 }); 500 return CEED_ERROR_SUCCESS; 501 } 502 503 //------------------------------------------------------------------------------ 504 // Take reciprocal of a vector 505 //------------------------------------------------------------------------------ 506 static int CeedVectorReciprocal_Sycl(CeedVector vec) { 507 Ceed ceed; 508 Ceed_Sycl *data; 509 CeedSize length; 510 CeedVector_Sycl *impl; 511 512 CeedCallBackend(CeedVectorGetCeed(vec, &ceed)); 513 CeedCallBackend(CeedVectorGetData(vec, &impl)); 514 CeedCallBackend(CeedVectorGetLength(vec, &length)); 515 CeedCallBackend(CeedGetData(ceed, &data)); 516 517 // Set value for synced device/host array 518 if (impl->d_array) CeedCallBackend(CeedDeviceReciprocal_Sycl(data->sycl_queue, impl->d_array, length)); 519 if (impl->h_array) CeedCallBackend(CeedHostReciprocal_Sycl(impl->h_array, length)); 520 return CEED_ERROR_SUCCESS; 521 } 522 523 //------------------------------------------------------------------------------ 524 // Compute x = alpha x on the host 525 //------------------------------------------------------------------------------ 526 static int CeedHostScale_Sycl(CeedScalar *x_array, CeedScalar alpha, CeedSize length) { 527 for (CeedSize i = 0; i < length; i++) x_array[i] *= alpha; 528 return CEED_ERROR_SUCCESS; 529 } 530 531 //------------------------------------------------------------------------------ 532 // Compute x = alpha x on device 533 //------------------------------------------------------------------------------ 534 static int CeedDeviceScale_Sycl(sycl::queue &sycl_queue, CeedScalar *x_array, CeedScalar alpha, CeedSize length) { 535 // Order queue 536 sycl::event e = sycl_queue.ext_oneapi_submit_barrier(); 537 sycl_queue.parallel_for(length, {e}, [=](sycl::id<1> i) { x_array[i] *= alpha; }); 538 return CEED_ERROR_SUCCESS; 539 } 540 541 //------------------------------------------------------------------------------ 542 // Compute x = alpha x 543 //------------------------------------------------------------------------------ 544 static int CeedVectorScale_Sycl(CeedVector x, CeedScalar alpha) { 545 Ceed ceed; 546 Ceed_Sycl *data; 547 CeedSize length; 548 CeedVector_Sycl *x_impl; 549 550 CeedCallBackend(CeedVectorGetCeed(x, &ceed)); 551 CeedCallBackend(CeedVectorGetData(x, &x_impl)); 552 CeedCallBackend(CeedVectorGetLength(x, &length)); 553 CeedCallBackend(CeedGetData(ceed, &data)); 554 555 // Set value for synced device/host array 556 if (x_impl->d_array) CeedCallBackend(CeedDeviceScale_Sycl(data->sycl_queue, x_impl->d_array, alpha, length)); 557 if (x_impl->h_array) CeedCallBackend(CeedHostScale_Sycl(x_impl->h_array, alpha, length)); 558 return CEED_ERROR_SUCCESS; 559 } 560 561 //------------------------------------------------------------------------------ 562 // Compute y = alpha x + y on the host 563 //------------------------------------------------------------------------------ 564 static int CeedHostAXPY_Sycl(CeedScalar *y_array, CeedScalar alpha, CeedScalar *x_array, CeedSize length) { 565 for (CeedSize i = 0; i < length; i++) y_array[i] += alpha * x_array[i]; 566 return CEED_ERROR_SUCCESS; 567 } 568 569 //------------------------------------------------------------------------------ 570 // Compute y = alpha x + y on device 571 //------------------------------------------------------------------------------ 572 static int CeedDeviceAXPY_Sycl(sycl::queue &sycl_queue, CeedScalar *y_array, CeedScalar alpha, CeedScalar *x_array, CeedSize length) { 573 // Order queue 574 sycl::event e = sycl_queue.ext_oneapi_submit_barrier(); 575 sycl_queue.parallel_for(length, {e}, [=](sycl::id<1> i) { y_array[i] += alpha * x_array[i]; }); 576 return CEED_ERROR_SUCCESS; 577 } 578 579 //------------------------------------------------------------------------------ 580 // Compute y = alpha x + y 581 //------------------------------------------------------------------------------ 582 static int CeedVectorAXPY_Sycl(CeedVector y, CeedScalar alpha, CeedVector x) { 583 Ceed ceed; 584 Ceed_Sycl *data; 585 CeedSize length; 586 CeedVector_Sycl *y_impl, *x_impl; 587 588 CeedCallBackend(CeedVectorGetCeed(y, &ceed)); 589 CeedCallBackend(CeedVectorGetData(y, &y_impl)); 590 CeedCallBackend(CeedVectorGetData(x, &x_impl)); 591 CeedCallBackend(CeedVectorGetLength(y, &length)); 592 CeedCallBackend(CeedGetData(ceed, &data)); 593 594 // Set value for synced device/host array 595 if (y_impl->d_array) { 596 CeedCallBackend(CeedVectorSyncArray(x, CEED_MEM_DEVICE)); 597 CeedCallBackend(CeedDeviceAXPY_Sycl(data->sycl_queue, y_impl->d_array, alpha, x_impl->d_array, length)); 598 } 599 if (y_impl->h_array) { 600 CeedCallBackend(CeedVectorSyncArray(x, CEED_MEM_HOST)); 601 CeedCallBackend(CeedHostAXPY_Sycl(y_impl->h_array, alpha, x_impl->h_array, length)); 602 } 603 return CEED_ERROR_SUCCESS; 604 } 605 606 //------------------------------------------------------------------------------ 607 // Compute the pointwise multiplication w = x .* y on the host 608 //------------------------------------------------------------------------------ 609 static int CeedHostPointwiseMult_Sycl(CeedScalar *w_array, CeedScalar *x_array, CeedScalar *y_array, CeedSize length) { 610 for (CeedSize i = 0; i < length; i++) w_array[i] = x_array[i] * y_array[i]; 611 return CEED_ERROR_SUCCESS; 612 } 613 614 //------------------------------------------------------------------------------ 615 // Compute the pointwise multiplication w = x .* y on device (impl in .cu file) 616 //------------------------------------------------------------------------------ 617 static int CeedDevicePointwiseMult_Sycl(sycl::queue &sycl_queue, CeedScalar *w_array, CeedScalar *x_array, CeedScalar *y_array, CeedSize length) { 618 // Order queue 619 sycl::event e = sycl_queue.ext_oneapi_submit_barrier(); 620 sycl_queue.parallel_for(length, {e}, [=](sycl::id<1> i) { w_array[i] = x_array[i] * y_array[i]; }); 621 return CEED_ERROR_SUCCESS; 622 } 623 624 //------------------------------------------------------------------------------ 625 // Compute the pointwise multiplication w = x .* y 626 //------------------------------------------------------------------------------ 627 static int CeedVectorPointwiseMult_Sycl(CeedVector w, CeedVector x, CeedVector y) { 628 Ceed ceed; 629 Ceed_Sycl *data; 630 CeedSize length; 631 CeedVector_Sycl *w_impl, *x_impl, *y_impl; 632 633 CeedCallBackend(CeedVectorGetCeed(w, &ceed)); 634 CeedCallBackend(CeedVectorGetData(w, &w_impl)); 635 CeedCallBackend(CeedVectorGetData(x, &x_impl)); 636 CeedCallBackend(CeedVectorGetData(y, &y_impl)); 637 CeedCallBackend(CeedVectorGetLength(w, &length)); 638 CeedCallBackend(CeedGetData(ceed, &data)); 639 640 // Set value for synced device/host array 641 if (!w_impl->d_array && !w_impl->h_array) { 642 CeedCallBackend(CeedVectorSetValue(w, 0.0)); 643 } 644 if (w_impl->d_array) { 645 CeedCallBackend(CeedVectorSyncArray(x, CEED_MEM_DEVICE)); 646 CeedCallBackend(CeedVectorSyncArray(y, CEED_MEM_DEVICE)); 647 CeedCallBackend(CeedDevicePointwiseMult_Sycl(data->sycl_queue, w_impl->d_array, x_impl->d_array, y_impl->d_array, length)); 648 } 649 if (w_impl->h_array) { 650 CeedCallBackend(CeedVectorSyncArray(x, CEED_MEM_HOST)); 651 CeedCallBackend(CeedVectorSyncArray(y, CEED_MEM_HOST)); 652 CeedCallBackend(CeedHostPointwiseMult_Sycl(w_impl->h_array, x_impl->h_array, y_impl->h_array, length)); 653 } 654 return CEED_ERROR_SUCCESS; 655 } 656 657 //------------------------------------------------------------------------------ 658 // Destroy the vector 659 //------------------------------------------------------------------------------ 660 static int CeedVectorDestroy_Sycl(const CeedVector vec) { 661 Ceed ceed; 662 Ceed_Sycl *data; 663 CeedVector_Sycl *impl; 664 665 CeedCallBackend(CeedVectorGetCeed(vec, &ceed)); 666 CeedCallBackend(CeedVectorGetData(vec, &impl)); 667 CeedCallBackend(CeedGetData(ceed, &data)); 668 669 // Wait for all work to finish before freeing memory 670 CeedCallSycl(ceed, data->sycl_queue.wait_and_throw()); 671 CeedCallSycl(ceed, sycl::free(impl->d_array_owned, data->sycl_context)); 672 CeedCallSycl(ceed, sycl::free(impl->reduction_norm, data->sycl_context)); 673 674 CeedCallBackend(CeedFree(&impl->h_array_owned)); 675 CeedCallBackend(CeedFree(&impl)); 676 return CEED_ERROR_SUCCESS; 677 } 678 679 //------------------------------------------------------------------------------ 680 // Create a vector of the specified length (does not allocate memory) 681 //------------------------------------------------------------------------------ 682 int CeedVectorCreate_Sycl(CeedSize n, CeedVector vec) { 683 Ceed ceed; 684 Ceed_Sycl *data; 685 CeedVector_Sycl *impl; 686 687 CeedCallBackend(CeedVectorGetCeed(vec, &ceed)); 688 CeedCallBackend(CeedGetData(ceed, &data)); 689 CeedCallBackend(CeedCalloc(1, &impl)); 690 CeedCallSycl(ceed, impl->reduction_norm = sycl::malloc_host<CeedScalar>(1, data->sycl_context)); 691 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "HasValidArray", CeedVectorHasValidArray_Sycl)); 692 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "HasBorrowedArrayOfType", CeedVectorHasBorrowedArrayOfType_Sycl)); 693 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "SetArray", CeedVectorSetArray_Sycl)); 694 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "TakeArray", CeedVectorTakeArray_Sycl)); 695 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "SetValue", CeedVectorSetValue_Sycl)); 696 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "SyncArray", CeedVectorSyncArray_Sycl)); 697 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "GetArray", CeedVectorGetArray_Sycl)); 698 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "GetArrayRead", CeedVectorGetArrayRead_Sycl)); 699 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "GetArrayWrite", CeedVectorGetArrayWrite_Sycl)); 700 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "Norm", CeedVectorNorm_Sycl)); 701 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "Reciprocal", CeedVectorReciprocal_Sycl)); 702 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "AXPY", CeedVectorAXPY_Sycl)); 703 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "Scale", CeedVectorScale_Sycl)); 704 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "PointwiseMult", CeedVectorPointwiseMult_Sycl)); 705 CeedCallBackend(CeedSetBackendFunctionCpp(ceed, "Vector", vec, "Destroy", CeedVectorDestroy_Sycl)); 706 CeedCallBackend(CeedVectorSetData(vec, impl)); 707 return CEED_ERROR_SUCCESS; 708 } 709