1 // Copyright (c) 2017-2025, 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.h> 9 #include <ceed/backend.h> 10 #include <ceed/jit-tools.h> 11 #include <assert.h> 12 #include <cuda.h> 13 #include <cuda_runtime.h> 14 #include <stdbool.h> 15 #include <string.h> 16 17 #include "../cuda/ceed-cuda-common.h" 18 #include "../cuda/ceed-cuda-compile.h" 19 #include "ceed-cuda-ref.h" 20 21 //------------------------------------------------------------------------------ 22 // Destroy operator 23 //------------------------------------------------------------------------------ 24 static int CeedOperatorDestroy_Cuda(CeedOperator op) { 25 CeedOperator_Cuda *impl; 26 27 CeedCallBackend(CeedOperatorGetData(op, &impl)); 28 29 // Apply data 30 CeedCallBackend(CeedFree(&impl->num_points)); 31 CeedCallBackend(CeedFree(&impl->skip_rstr_in)); 32 CeedCallBackend(CeedFree(&impl->skip_rstr_out)); 33 CeedCallBackend(CeedFree(&impl->apply_add_basis_out)); 34 CeedCallBackend(CeedFree(&impl->input_field_order)); 35 CeedCallBackend(CeedFree(&impl->output_field_order)); 36 CeedCallBackend(CeedFree(&impl->input_states)); 37 38 for (CeedInt i = 0; i < impl->num_inputs; i++) { 39 CeedCallBackend(CeedVectorDestroy(&impl->e_vecs_in[i])); 40 CeedCallBackend(CeedVectorDestroy(&impl->q_vecs_in[i])); 41 } 42 CeedCallBackend(CeedFree(&impl->e_vecs_in)); 43 CeedCallBackend(CeedFree(&impl->q_vecs_in)); 44 45 for (CeedInt i = 0; i < impl->num_outputs; i++) { 46 CeedCallBackend(CeedVectorDestroy(&impl->e_vecs_out[i])); 47 CeedCallBackend(CeedVectorDestroy(&impl->q_vecs_out[i])); 48 } 49 CeedCallBackend(CeedFree(&impl->e_vecs_out)); 50 CeedCallBackend(CeedFree(&impl->q_vecs_out)); 51 CeedCallBackend(CeedVectorDestroy(&impl->point_coords_elem)); 52 53 // QFunction assembly data 54 for (CeedInt i = 0; i < impl->num_active_in; i++) { 55 CeedCallBackend(CeedVectorDestroy(&impl->qf_active_in[i])); 56 } 57 CeedCallBackend(CeedFree(&impl->qf_active_in)); 58 59 // Diag data 60 if (impl->diag) { 61 Ceed ceed; 62 63 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 64 if (impl->diag->module) { 65 CeedCallCuda(ceed, cuModuleUnload(impl->diag->module)); 66 } 67 if (impl->diag->module_point_block) { 68 CeedCallCuda(ceed, cuModuleUnload(impl->diag->module_point_block)); 69 } 70 CeedCallCuda(ceed, cudaFree(impl->diag->d_eval_modes_in)); 71 CeedCallCuda(ceed, cudaFree(impl->diag->d_eval_modes_out)); 72 CeedCallCuda(ceed, cudaFree(impl->diag->d_identity)); 73 CeedCallCuda(ceed, cudaFree(impl->diag->d_interp_in)); 74 CeedCallCuda(ceed, cudaFree(impl->diag->d_interp_out)); 75 CeedCallCuda(ceed, cudaFree(impl->diag->d_grad_in)); 76 CeedCallCuda(ceed, cudaFree(impl->diag->d_grad_out)); 77 CeedCallCuda(ceed, cudaFree(impl->diag->d_div_in)); 78 CeedCallCuda(ceed, cudaFree(impl->diag->d_div_out)); 79 CeedCallCuda(ceed, cudaFree(impl->diag->d_curl_in)); 80 CeedCallCuda(ceed, cudaFree(impl->diag->d_curl_out)); 81 CeedCallBackend(CeedDestroy(&ceed)); 82 CeedCallBackend(CeedVectorDestroy(&impl->diag->elem_diag)); 83 CeedCallBackend(CeedVectorDestroy(&impl->diag->point_block_elem_diag)); 84 CeedCallBackend(CeedElemRestrictionDestroy(&impl->diag->diag_rstr)); 85 CeedCallBackend(CeedElemRestrictionDestroy(&impl->diag->point_block_diag_rstr)); 86 } 87 CeedCallBackend(CeedFree(&impl->diag)); 88 89 if (impl->asmb) { 90 Ceed ceed; 91 92 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 93 CeedCallCuda(ceed, cuModuleUnload(impl->asmb->module)); 94 CeedCallCuda(ceed, cudaFree(impl->asmb->d_B_in)); 95 CeedCallCuda(ceed, cudaFree(impl->asmb->d_B_out)); 96 CeedCallBackend(CeedDestroy(&ceed)); 97 } 98 CeedCallBackend(CeedFree(&impl->asmb)); 99 100 CeedCallBackend(CeedFree(&impl)); 101 return CEED_ERROR_SUCCESS; 102 } 103 104 //------------------------------------------------------------------------------ 105 // Setup infields or outfields 106 //------------------------------------------------------------------------------ 107 static int CeedOperatorSetupFields_Cuda(CeedQFunction qf, CeedOperator op, bool is_input, bool is_at_points, bool *skip_rstr, bool *apply_add_basis, 108 CeedVector *e_vecs, CeedVector *q_vecs, CeedInt num_fields, CeedInt Q, CeedInt num_elem) { 109 Ceed ceed; 110 CeedQFunctionField *qf_fields; 111 CeedOperatorField *op_fields; 112 113 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 114 if (is_input) { 115 CeedCallBackend(CeedOperatorGetFields(op, NULL, &op_fields, NULL, NULL)); 116 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_fields, NULL, NULL)); 117 } else { 118 CeedCallBackend(CeedOperatorGetFields(op, NULL, NULL, NULL, &op_fields)); 119 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, NULL, NULL, &qf_fields)); 120 } 121 122 // Loop over fields 123 for (CeedInt i = 0; i < num_fields; i++) { 124 bool is_active = false, is_strided = false, skip_e_vec = false; 125 CeedSize q_size; 126 CeedInt size; 127 CeedEvalMode eval_mode; 128 CeedVector l_vec; 129 CeedElemRestriction elem_rstr; 130 131 // Check whether this field can skip the element restriction: 132 // Input CEED_VECTOR_ACTIVE 133 // Output CEED_VECTOR_ACTIVE without CEED_EVAL_NONE 134 // Input CEED_VECTOR_NONE with CEED_EVAL_WEIGHT 135 // Input passive vector with CEED_EVAL_NONE and strided restriction with CEED_STRIDES_BACKEND 136 CeedCallBackend(CeedOperatorFieldGetVector(op_fields[i], &l_vec)); 137 is_active = l_vec == CEED_VECTOR_ACTIVE; 138 CeedCallBackend(CeedVectorDestroy(&l_vec)); 139 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_fields[i], &elem_rstr)); 140 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_fields[i], &eval_mode)); 141 skip_e_vec = (is_input && is_active) || (is_active && eval_mode != CEED_EVAL_NONE) || (eval_mode == CEED_EVAL_WEIGHT); 142 if (!skip_e_vec && is_input && !is_active && eval_mode == CEED_EVAL_NONE) { 143 CeedCallBackend(CeedElemRestrictionIsStrided(elem_rstr, &is_strided)); 144 if (is_strided) CeedCallBackend(CeedElemRestrictionHasBackendStrides(elem_rstr, &skip_e_vec)); 145 } 146 if (skip_e_vec) { 147 e_vecs[i] = NULL; 148 } else { 149 CeedCallBackend(CeedElemRestrictionCreateVector(elem_rstr, NULL, &e_vecs[i])); 150 } 151 CeedCallBackend(CeedElemRestrictionDestroy(&elem_rstr)); 152 153 switch (eval_mode) { 154 case CEED_EVAL_NONE: 155 case CEED_EVAL_INTERP: 156 case CEED_EVAL_GRAD: 157 case CEED_EVAL_DIV: 158 case CEED_EVAL_CURL: 159 CeedCallBackend(CeedQFunctionFieldGetSize(qf_fields[i], &size)); 160 q_size = (CeedSize)num_elem * (CeedSize)Q * (CeedSize)size; 161 CeedCallBackend(CeedVectorCreate(ceed, q_size, &q_vecs[i])); 162 break; 163 case CEED_EVAL_WEIGHT: { 164 CeedBasis basis; 165 166 CeedCallBackend(CeedOperatorFieldGetBasis(op_fields[i], &basis)); 167 q_size = (CeedSize)num_elem * (CeedSize)Q; 168 CeedCallBackend(CeedVectorCreate(ceed, q_size, &q_vecs[i])); 169 if (is_at_points) { 170 CeedInt num_points[num_elem]; 171 172 for (CeedInt i = 0; i < num_elem; i++) num_points[i] = Q; 173 CeedCallBackend( 174 CeedBasisApplyAtPoints(basis, num_elem, num_points, CEED_NOTRANSPOSE, CEED_EVAL_WEIGHT, CEED_VECTOR_NONE, CEED_VECTOR_NONE, q_vecs[i])); 175 } else { 176 CeedCallBackend(CeedBasisApply(basis, num_elem, CEED_NOTRANSPOSE, CEED_EVAL_WEIGHT, CEED_VECTOR_NONE, q_vecs[i])); 177 } 178 CeedCallBackend(CeedBasisDestroy(&basis)); 179 break; 180 } 181 } 182 } 183 // Drop duplicate restrictions 184 if (is_input) { 185 for (CeedInt i = 0; i < num_fields; i++) { 186 CeedVector vec_i; 187 CeedElemRestriction rstr_i; 188 189 CeedCallBackend(CeedOperatorFieldGetVector(op_fields[i], &vec_i)); 190 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_fields[i], &rstr_i)); 191 for (CeedInt j = i + 1; j < num_fields; j++) { 192 CeedVector vec_j; 193 CeedElemRestriction rstr_j; 194 195 CeedCallBackend(CeedOperatorFieldGetVector(op_fields[j], &vec_j)); 196 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_fields[j], &rstr_j)); 197 if (vec_i == vec_j && rstr_i == rstr_j) { 198 if (e_vecs[i]) CeedCallBackend(CeedVectorReferenceCopy(e_vecs[i], &e_vecs[j])); 199 skip_rstr[j] = true; 200 } 201 CeedCallBackend(CeedVectorDestroy(&vec_j)); 202 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_j)); 203 } 204 CeedCallBackend(CeedVectorDestroy(&vec_i)); 205 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_i)); 206 } 207 } else { 208 for (CeedInt i = num_fields - 1; i >= 0; i--) { 209 CeedVector vec_i; 210 CeedElemRestriction rstr_i; 211 212 CeedCallBackend(CeedOperatorFieldGetVector(op_fields[i], &vec_i)); 213 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_fields[i], &rstr_i)); 214 for (CeedInt j = i - 1; j >= 0; j--) { 215 CeedVector vec_j; 216 CeedElemRestriction rstr_j; 217 218 CeedCallBackend(CeedOperatorFieldGetVector(op_fields[j], &vec_j)); 219 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_fields[j], &rstr_j)); 220 if (vec_i == vec_j && rstr_i == rstr_j) { 221 if (e_vecs[i]) CeedCallBackend(CeedVectorReferenceCopy(e_vecs[i], &e_vecs[j])); 222 skip_rstr[j] = true; 223 apply_add_basis[i] = true; 224 } 225 CeedCallBackend(CeedVectorDestroy(&vec_j)); 226 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_j)); 227 } 228 CeedCallBackend(CeedVectorDestroy(&vec_i)); 229 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_i)); 230 } 231 } 232 CeedCallBackend(CeedDestroy(&ceed)); 233 return CEED_ERROR_SUCCESS; 234 } 235 236 //------------------------------------------------------------------------------ 237 // CeedOperator needs to connect all the named fields (be they active or passive) to the named inputs and outputs of its CeedQFunction. 238 //------------------------------------------------------------------------------ 239 static int CeedOperatorSetup_Cuda(CeedOperator op) { 240 bool is_setup_done; 241 CeedInt Q, num_elem, num_input_fields, num_output_fields; 242 CeedQFunctionField *qf_input_fields, *qf_output_fields; 243 CeedQFunction qf; 244 CeedOperatorField *op_input_fields, *op_output_fields; 245 CeedOperator_Cuda *impl; 246 247 CeedCallBackend(CeedOperatorIsSetupDone(op, &is_setup_done)); 248 if (is_setup_done) return CEED_ERROR_SUCCESS; 249 250 CeedCallBackend(CeedOperatorGetData(op, &impl)); 251 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 252 CeedCallBackend(CeedOperatorGetNumQuadraturePoints(op, &Q)); 253 CeedCallBackend(CeedOperatorGetNumElements(op, &num_elem)); 254 CeedCallBackend(CeedOperatorGetFields(op, &num_input_fields, &op_input_fields, &num_output_fields, &op_output_fields)); 255 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_input_fields, NULL, &qf_output_fields)); 256 257 // Allocate 258 CeedCallBackend(CeedCalloc(num_input_fields, &impl->e_vecs_in)); 259 CeedCallBackend(CeedCalloc(num_output_fields, &impl->e_vecs_out)); 260 CeedCallBackend(CeedCalloc(num_input_fields, &impl->skip_rstr_in)); 261 CeedCallBackend(CeedCalloc(num_output_fields, &impl->skip_rstr_out)); 262 CeedCallBackend(CeedCalloc(num_output_fields, &impl->apply_add_basis_out)); 263 CeedCallBackend(CeedCalloc(num_input_fields, &impl->input_field_order)); 264 CeedCallBackend(CeedCalloc(num_output_fields, &impl->output_field_order)); 265 CeedCallBackend(CeedCalloc(num_input_fields, &impl->input_states)); 266 CeedCallBackend(CeedCalloc(num_input_fields, &impl->q_vecs_in)); 267 CeedCallBackend(CeedCalloc(num_output_fields, &impl->q_vecs_out)); 268 impl->num_inputs = num_input_fields; 269 impl->num_outputs = num_output_fields; 270 271 // Set up infield and outfield e-vecs and q-vecs 272 CeedCallBackend( 273 CeedOperatorSetupFields_Cuda(qf, op, true, false, impl->skip_rstr_in, NULL, impl->e_vecs_in, impl->q_vecs_in, num_input_fields, Q, num_elem)); 274 CeedCallBackend(CeedOperatorSetupFields_Cuda(qf, op, false, false, impl->skip_rstr_out, impl->apply_add_basis_out, impl->e_vecs_out, 275 impl->q_vecs_out, num_output_fields, Q, num_elem)); 276 277 // Reorder fields to allow reuse of buffers 278 impl->max_active_e_vec_len = 0; 279 { 280 bool is_ordered[CEED_FIELD_MAX]; 281 CeedInt curr_index = 0; 282 283 for (CeedInt i = 0; i < num_input_fields; i++) is_ordered[i] = false; 284 for (CeedInt i = 0; i < num_input_fields; i++) { 285 CeedSize e_vec_len_i; 286 CeedVector vec_i; 287 CeedElemRestriction rstr_i; 288 289 if (is_ordered[i]) continue; 290 is_ordered[i] = true; 291 impl->input_field_order[curr_index] = i; 292 curr_index++; 293 CeedCallBackend(CeedOperatorFieldGetVector(op_input_fields[i], &vec_i)); 294 if (vec_i == CEED_VECTOR_NONE) { 295 // CEED_EVAL_WEIGHT 296 CeedCallBackend(CeedVectorDestroy(&vec_i)); 297 continue; 298 }; 299 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_input_fields[i], &rstr_i)); 300 CeedCallBackend(CeedElemRestrictionGetEVectorSize(rstr_i, &e_vec_len_i)); 301 impl->max_active_e_vec_len = e_vec_len_i > impl->max_active_e_vec_len ? e_vec_len_i : impl->max_active_e_vec_len; 302 for (CeedInt j = i + 1; j < num_input_fields; j++) { 303 CeedVector vec_j; 304 CeedElemRestriction rstr_j; 305 306 CeedCallBackend(CeedOperatorFieldGetVector(op_input_fields[j], &vec_j)); 307 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_input_fields[j], &rstr_j)); 308 if (rstr_i == rstr_j && vec_i == vec_j) { 309 is_ordered[j] = true; 310 impl->input_field_order[curr_index] = j; 311 curr_index++; 312 } 313 CeedCallBackend(CeedVectorDestroy(&vec_j)); 314 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_j)); 315 } 316 CeedCallBackend(CeedVectorDestroy(&vec_i)); 317 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_i)); 318 } 319 } 320 { 321 bool is_ordered[CEED_FIELD_MAX]; 322 CeedInt curr_index = 0; 323 324 for (CeedInt i = 0; i < num_output_fields; i++) is_ordered[i] = false; 325 for (CeedInt i = 0; i < num_output_fields; i++) { 326 CeedSize e_vec_len_i; 327 CeedVector vec_i; 328 CeedElemRestriction rstr_i; 329 330 if (is_ordered[i]) continue; 331 is_ordered[i] = true; 332 impl->output_field_order[curr_index] = i; 333 curr_index++; 334 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[i], &vec_i)); 335 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_output_fields[i], &rstr_i)); 336 CeedCallBackend(CeedElemRestrictionGetEVectorSize(rstr_i, &e_vec_len_i)); 337 impl->max_active_e_vec_len = e_vec_len_i > impl->max_active_e_vec_len ? e_vec_len_i : impl->max_active_e_vec_len; 338 for (CeedInt j = i + 1; j < num_output_fields; j++) { 339 CeedVector vec_j; 340 CeedElemRestriction rstr_j; 341 342 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[j], &vec_j)); 343 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_output_fields[j], &rstr_j)); 344 if (rstr_i == rstr_j && vec_i == vec_j) { 345 is_ordered[j] = true; 346 impl->output_field_order[curr_index] = j; 347 curr_index++; 348 } 349 CeedCallBackend(CeedVectorDestroy(&vec_j)); 350 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_j)); 351 } 352 CeedCallBackend(CeedVectorDestroy(&vec_i)); 353 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_i)); 354 } 355 } 356 357 CeedCallBackend(CeedClearWorkVectors(CeedOperatorReturnCeed(op), impl->max_active_e_vec_len)); 358 CeedCallBackend(CeedOperatorSetSetupDone(op)); 359 CeedCallBackend(CeedQFunctionDestroy(&qf)); 360 return CEED_ERROR_SUCCESS; 361 } 362 363 //------------------------------------------------------------------------------ 364 // Restrict Operator Inputs 365 //------------------------------------------------------------------------------ 366 static inline int CeedOperatorInputRestrict_Cuda(CeedOperatorField op_input_field, CeedQFunctionField qf_input_field, CeedInt input_field, 367 CeedVector in_vec, CeedVector active_e_vec, const bool skip_active, CeedOperator_Cuda *impl, 368 CeedRequest *request) { 369 bool is_active = false; 370 CeedVector l_vec, e_vec = impl->e_vecs_in[input_field]; 371 372 // Get input vector 373 CeedCallBackend(CeedOperatorFieldGetVector(op_input_field, &l_vec)); 374 is_active = l_vec == CEED_VECTOR_ACTIVE; 375 if (is_active && skip_active) return CEED_ERROR_SUCCESS; 376 if (is_active) { 377 l_vec = in_vec; 378 if (!e_vec) e_vec = active_e_vec; 379 } 380 381 // Restriction action 382 if (e_vec) { 383 // Restrict, if necessary 384 if (!impl->skip_rstr_in[input_field]) { 385 uint64_t state; 386 387 CeedCallBackend(CeedVectorGetState(l_vec, &state)); 388 if (is_active || state != impl->input_states[input_field]) { 389 CeedElemRestriction elem_rstr; 390 391 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_input_field, &elem_rstr)); 392 CeedCallBackend(CeedElemRestrictionApply(elem_rstr, CEED_NOTRANSPOSE, l_vec, e_vec, request)); 393 CeedCallBackend(CeedElemRestrictionDestroy(&elem_rstr)); 394 } 395 impl->input_states[input_field] = state; 396 } 397 } 398 if (!is_active) CeedCallBackend(CeedVectorDestroy(&l_vec)); 399 return CEED_ERROR_SUCCESS; 400 } 401 402 //------------------------------------------------------------------------------ 403 // Input Basis Action 404 //------------------------------------------------------------------------------ 405 static inline int CeedOperatorInputBasis_Cuda(CeedOperatorField op_input_field, CeedQFunctionField qf_input_field, CeedInt input_field, 406 CeedVector in_vec, CeedVector active_e_vec, CeedInt num_elem, const bool skip_active, 407 CeedOperator_Cuda *impl) { 408 bool is_active = false; 409 CeedEvalMode eval_mode; 410 CeedVector l_vec, e_vec = impl->e_vecs_in[input_field], q_vec = impl->q_vecs_in[input_field]; 411 412 // Skip active input 413 CeedCallBackend(CeedOperatorFieldGetVector(op_input_field, &l_vec)); 414 is_active = l_vec == CEED_VECTOR_ACTIVE; 415 if (is_active && skip_active) return CEED_ERROR_SUCCESS; 416 if (is_active) { 417 l_vec = in_vec; 418 if (!e_vec) e_vec = active_e_vec; 419 } 420 421 // Basis action 422 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_input_field, &eval_mode)); 423 switch (eval_mode) { 424 case CEED_EVAL_NONE: { 425 const CeedScalar *e_vec_array; 426 427 if (e_vec) { 428 CeedCallBackend(CeedVectorGetArrayRead(e_vec, CEED_MEM_DEVICE, &e_vec_array)); 429 } else { 430 CeedCallBackend(CeedVectorGetArrayRead(l_vec, CEED_MEM_DEVICE, &e_vec_array)); 431 } 432 CeedCallBackend(CeedVectorSetArray(q_vec, CEED_MEM_DEVICE, CEED_USE_POINTER, (CeedScalar *)e_vec_array)); 433 break; 434 } 435 case CEED_EVAL_INTERP: 436 case CEED_EVAL_GRAD: 437 case CEED_EVAL_DIV: 438 case CEED_EVAL_CURL: { 439 CeedBasis basis; 440 441 CeedCallBackend(CeedOperatorFieldGetBasis(op_input_field, &basis)); 442 CeedCallBackend(CeedBasisApply(basis, num_elem, CEED_NOTRANSPOSE, eval_mode, e_vec, q_vec)); 443 CeedCallBackend(CeedBasisDestroy(&basis)); 444 break; 445 } 446 case CEED_EVAL_WEIGHT: 447 break; // No action 448 } 449 if (!is_active) CeedCallBackend(CeedVectorDestroy(&l_vec)); 450 return CEED_ERROR_SUCCESS; 451 } 452 453 //------------------------------------------------------------------------------ 454 // Restore Input Vectors 455 //------------------------------------------------------------------------------ 456 static inline int CeedOperatorInputRestore_Cuda(CeedOperatorField op_input_field, CeedQFunctionField qf_input_field, CeedInt input_field, 457 CeedVector in_vec, CeedVector active_e_vec, const bool skip_active, CeedOperator_Cuda *impl) { 458 bool is_active = false; 459 CeedEvalMode eval_mode; 460 CeedVector l_vec, e_vec = impl->e_vecs_in[input_field]; 461 462 // Skip active input 463 CeedCallBackend(CeedOperatorFieldGetVector(op_input_field, &l_vec)); 464 is_active = l_vec == CEED_VECTOR_ACTIVE; 465 if (is_active && skip_active) return CEED_ERROR_SUCCESS; 466 if (is_active) { 467 l_vec = in_vec; 468 if (!e_vec) e_vec = active_e_vec; 469 } 470 471 // Restore e-vec 472 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_input_field, &eval_mode)); 473 if (eval_mode == CEED_EVAL_NONE) { 474 const CeedScalar *e_vec_array; 475 476 CeedCallBackend(CeedVectorTakeArray(impl->q_vecs_in[input_field], CEED_MEM_DEVICE, (CeedScalar **)&e_vec_array)); 477 if (e_vec) { 478 CeedCallBackend(CeedVectorRestoreArrayRead(e_vec, &e_vec_array)); 479 } else { 480 CeedCallBackend(CeedVectorRestoreArrayRead(l_vec, &e_vec_array)); 481 } 482 } 483 if (!is_active) CeedCallBackend(CeedVectorDestroy(&l_vec)); 484 return CEED_ERROR_SUCCESS; 485 } 486 487 //------------------------------------------------------------------------------ 488 // Apply and add to output 489 //------------------------------------------------------------------------------ 490 static int CeedOperatorApplyAdd_Cuda(CeedOperator op, CeedVector in_vec, CeedVector out_vec, CeedRequest *request) { 491 CeedInt Q, num_elem, num_input_fields, num_output_fields; 492 Ceed ceed; 493 CeedVector active_e_vec; 494 CeedQFunctionField *qf_input_fields, *qf_output_fields; 495 CeedQFunction qf; 496 CeedOperatorField *op_input_fields, *op_output_fields; 497 CeedOperator_Cuda *impl; 498 499 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 500 CeedCallBackend(CeedOperatorGetData(op, &impl)); 501 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 502 CeedCallBackend(CeedOperatorGetNumQuadraturePoints(op, &Q)); 503 CeedCallBackend(CeedOperatorGetNumElements(op, &num_elem)); 504 CeedCallBackend(CeedOperatorGetFields(op, &num_input_fields, &op_input_fields, &num_output_fields, &op_output_fields)); 505 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_input_fields, NULL, &qf_output_fields)); 506 507 // Setup 508 CeedCallBackend(CeedOperatorSetup_Cuda(op)); 509 510 // Work vector 511 CeedCallBackend(CeedGetWorkVector(ceed, impl->max_active_e_vec_len, &active_e_vec)); 512 513 // Process inputs 514 for (CeedInt i = 0; i < num_input_fields; i++) { 515 CeedInt field = impl->input_field_order[i]; 516 517 CeedCallBackend( 518 CeedOperatorInputRestrict_Cuda(op_input_fields[field], qf_input_fields[field], field, in_vec, active_e_vec, false, impl, request)); 519 CeedCallBackend(CeedOperatorInputBasis_Cuda(op_input_fields[field], qf_input_fields[field], field, in_vec, active_e_vec, num_elem, false, impl)); 520 } 521 522 // Output pointers, as necessary 523 for (CeedInt i = 0; i < num_output_fields; i++) { 524 CeedEvalMode eval_mode; 525 526 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_output_fields[i], &eval_mode)); 527 if (eval_mode == CEED_EVAL_NONE) { 528 CeedScalar *e_vec_array; 529 530 CeedCallBackend(CeedVectorGetArrayWrite(impl->e_vecs_out[i], CEED_MEM_DEVICE, &e_vec_array)); 531 CeedCallBackend(CeedVectorSetArray(impl->q_vecs_out[i], CEED_MEM_DEVICE, CEED_USE_POINTER, e_vec_array)); 532 } 533 } 534 535 // Q function 536 CeedCallBackend(CeedQFunctionApply(qf, num_elem * Q, impl->q_vecs_in, impl->q_vecs_out)); 537 538 // Restore input arrays 539 for (CeedInt i = 0; i < num_input_fields; i++) { 540 CeedCallBackend(CeedOperatorInputRestore_Cuda(op_input_fields[i], qf_input_fields[i], i, in_vec, active_e_vec, false, impl)); 541 } 542 543 // Output basis and restriction 544 for (CeedInt i = 0; i < num_output_fields; i++) { 545 bool is_active = false; 546 CeedInt field = impl->output_field_order[i]; 547 CeedEvalMode eval_mode; 548 CeedVector l_vec, e_vec = impl->e_vecs_out[field], q_vec = impl->q_vecs_out[field]; 549 550 // Output vector 551 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[field], &l_vec)); 552 is_active = l_vec == CEED_VECTOR_ACTIVE; 553 if (is_active) { 554 l_vec = out_vec; 555 if (!e_vec) e_vec = active_e_vec; 556 } 557 558 // Basis action 559 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_output_fields[field], &eval_mode)); 560 switch (eval_mode) { 561 case CEED_EVAL_NONE: 562 break; // No action 563 case CEED_EVAL_INTERP: 564 case CEED_EVAL_GRAD: 565 case CEED_EVAL_DIV: 566 case CEED_EVAL_CURL: { 567 CeedBasis basis; 568 569 CeedCallBackend(CeedOperatorFieldGetBasis(op_output_fields[field], &basis)); 570 if (impl->apply_add_basis_out[field]) { 571 CeedCallBackend(CeedBasisApplyAdd(basis, num_elem, CEED_TRANSPOSE, eval_mode, q_vec, e_vec)); 572 } else { 573 CeedCallBackend(CeedBasisApply(basis, num_elem, CEED_TRANSPOSE, eval_mode, q_vec, e_vec)); 574 } 575 CeedCallBackend(CeedBasisDestroy(&basis)); 576 break; 577 } 578 // LCOV_EXCL_START 579 case CEED_EVAL_WEIGHT: { 580 return CeedError(ceed, CEED_ERROR_BACKEND, "CEED_EVAL_WEIGHT cannot be an output evaluation mode"); 581 // LCOV_EXCL_STOP 582 } 583 } 584 585 // Restore evec 586 if (eval_mode == CEED_EVAL_NONE) { 587 CeedScalar *e_vec_array; 588 589 CeedCallBackend(CeedVectorTakeArray(impl->q_vecs_out[i], CEED_MEM_DEVICE, &e_vec_array)); 590 CeedCallBackend(CeedVectorRestoreArray(e_vec, &e_vec_array)); 591 } 592 593 // Restrict 594 if (!impl->skip_rstr_out[field]) { 595 CeedElemRestriction elem_rstr; 596 597 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_output_fields[field], &elem_rstr)); 598 CeedCallBackend(CeedElemRestrictionApply(elem_rstr, CEED_TRANSPOSE, e_vec, l_vec, request)); 599 CeedCallBackend(CeedElemRestrictionDestroy(&elem_rstr)); 600 } 601 if (!is_active) CeedCallBackend(CeedVectorDestroy(&l_vec)); 602 } 603 604 // Return work vector 605 CeedCallBackend(CeedRestoreWorkVector(ceed, &active_e_vec)); 606 CeedCallBackend(CeedDestroy(&ceed)); 607 CeedCallBackend(CeedQFunctionDestroy(&qf)); 608 return CEED_ERROR_SUCCESS; 609 } 610 611 //------------------------------------------------------------------------------ 612 // CeedOperator needs to connect all the named fields (be they active or passive) to the named inputs and outputs of its CeedQFunction. 613 //------------------------------------------------------------------------------ 614 static int CeedOperatorSetupAtPoints_Cuda(CeedOperator op) { 615 bool is_setup_done; 616 CeedInt max_num_points = -1, num_elem, num_input_fields, num_output_fields; 617 CeedQFunctionField *qf_input_fields, *qf_output_fields; 618 CeedQFunction qf; 619 CeedOperatorField *op_input_fields, *op_output_fields; 620 CeedOperator_Cuda *impl; 621 622 CeedCallBackend(CeedOperatorIsSetupDone(op, &is_setup_done)); 623 if (is_setup_done) return CEED_ERROR_SUCCESS; 624 625 CeedCallBackend(CeedOperatorGetData(op, &impl)); 626 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 627 CeedCallBackend(CeedOperatorGetNumElements(op, &num_elem)); 628 CeedCallBackend(CeedOperatorGetFields(op, &num_input_fields, &op_input_fields, &num_output_fields, &op_output_fields)); 629 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_input_fields, NULL, &qf_output_fields)); 630 { 631 CeedElemRestriction rstr_points = NULL; 632 633 CeedCallBackend(CeedOperatorAtPointsGetPoints(op, &rstr_points, NULL)); 634 CeedCallBackend(CeedElemRestrictionGetMaxPointsInElement(rstr_points, &max_num_points)); 635 CeedCallBackend(CeedCalloc(num_elem, &impl->num_points)); 636 for (CeedInt e = 0; e < num_elem; e++) { 637 CeedInt num_points_elem; 638 639 CeedCallBackend(CeedElemRestrictionGetNumPointsInElement(rstr_points, e, &num_points_elem)); 640 impl->num_points[e] = num_points_elem; 641 } 642 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_points)); 643 } 644 impl->max_num_points = max_num_points; 645 646 // Allocate 647 CeedCallBackend(CeedCalloc(num_input_fields, &impl->e_vecs_in)); 648 CeedCallBackend(CeedCalloc(num_output_fields, &impl->e_vecs_out)); 649 CeedCallBackend(CeedCalloc(num_input_fields, &impl->skip_rstr_in)); 650 CeedCallBackend(CeedCalloc(num_output_fields, &impl->skip_rstr_out)); 651 CeedCallBackend(CeedCalloc(num_output_fields, &impl->apply_add_basis_out)); 652 CeedCallBackend(CeedCalloc(num_input_fields, &impl->input_field_order)); 653 CeedCallBackend(CeedCalloc(num_output_fields, &impl->output_field_order)); 654 CeedCallBackend(CeedCalloc(num_input_fields, &impl->input_states)); 655 CeedCallBackend(CeedCalloc(num_input_fields, &impl->q_vecs_in)); 656 CeedCallBackend(CeedCalloc(num_output_fields, &impl->q_vecs_out)); 657 impl->num_inputs = num_input_fields; 658 impl->num_outputs = num_output_fields; 659 660 // Set up infield and outfield e-vecs and q-vecs 661 CeedCallBackend(CeedOperatorSetupFields_Cuda(qf, op, true, true, impl->skip_rstr_in, NULL, impl->e_vecs_in, impl->q_vecs_in, num_input_fields, 662 max_num_points, num_elem)); 663 CeedCallBackend(CeedOperatorSetupFields_Cuda(qf, op, false, true, impl->skip_rstr_out, impl->apply_add_basis_out, impl->e_vecs_out, 664 impl->q_vecs_out, num_output_fields, max_num_points, num_elem)); 665 666 // Reorder fields to allow reuse of buffers 667 impl->max_active_e_vec_len = 0; 668 { 669 bool is_ordered[CEED_FIELD_MAX]; 670 CeedInt curr_index = 0; 671 672 for (CeedInt i = 0; i < num_input_fields; i++) is_ordered[i] = false; 673 for (CeedInt i = 0; i < num_input_fields; i++) { 674 CeedSize e_vec_len_i; 675 CeedVector vec_i; 676 CeedElemRestriction rstr_i; 677 678 if (is_ordered[i]) continue; 679 is_ordered[i] = true; 680 impl->input_field_order[curr_index] = i; 681 curr_index++; 682 CeedCallBackend(CeedOperatorFieldGetVector(op_input_fields[i], &vec_i)); 683 if (vec_i == CEED_VECTOR_NONE) { 684 // CEED_EVAL_WEIGHT 685 CeedCallBackend(CeedVectorDestroy(&vec_i)); 686 continue; 687 }; 688 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_input_fields[i], &rstr_i)); 689 CeedCallBackend(CeedElemRestrictionGetEVectorSize(rstr_i, &e_vec_len_i)); 690 impl->max_active_e_vec_len = e_vec_len_i > impl->max_active_e_vec_len ? e_vec_len_i : impl->max_active_e_vec_len; 691 for (CeedInt j = i + 1; j < num_input_fields; j++) { 692 CeedVector vec_j; 693 CeedElemRestriction rstr_j; 694 695 CeedCallBackend(CeedOperatorFieldGetVector(op_input_fields[j], &vec_j)); 696 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_input_fields[j], &rstr_j)); 697 if (rstr_i == rstr_j && vec_i == vec_j) { 698 is_ordered[j] = true; 699 impl->input_field_order[curr_index] = j; 700 curr_index++; 701 } 702 CeedCallBackend(CeedVectorDestroy(&vec_j)); 703 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_j)); 704 } 705 CeedCallBackend(CeedVectorDestroy(&vec_i)); 706 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_i)); 707 } 708 } 709 { 710 bool is_ordered[CEED_FIELD_MAX]; 711 CeedInt curr_index = 0; 712 713 for (CeedInt i = 0; i < num_output_fields; i++) is_ordered[i] = false; 714 for (CeedInt i = 0; i < num_output_fields; i++) { 715 CeedSize e_vec_len_i; 716 CeedVector vec_i; 717 CeedElemRestriction rstr_i; 718 719 if (is_ordered[i]) continue; 720 is_ordered[i] = true; 721 impl->output_field_order[curr_index] = i; 722 curr_index++; 723 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[i], &vec_i)); 724 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_output_fields[i], &rstr_i)); 725 CeedCallBackend(CeedElemRestrictionGetEVectorSize(rstr_i, &e_vec_len_i)); 726 impl->max_active_e_vec_len = e_vec_len_i > impl->max_active_e_vec_len ? e_vec_len_i : impl->max_active_e_vec_len; 727 for (CeedInt j = i + 1; j < num_output_fields; j++) { 728 CeedVector vec_j; 729 CeedElemRestriction rstr_j; 730 731 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[j], &vec_j)); 732 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_output_fields[j], &rstr_j)); 733 if (rstr_i == rstr_j && vec_i == vec_j) { 734 is_ordered[j] = true; 735 impl->output_field_order[curr_index] = j; 736 curr_index++; 737 } 738 CeedCallBackend(CeedVectorDestroy(&vec_j)); 739 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_j)); 740 } 741 CeedCallBackend(CeedVectorDestroy(&vec_i)); 742 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_i)); 743 } 744 } 745 746 CeedCallBackend(CeedClearWorkVectors(CeedOperatorReturnCeed(op), impl->max_active_e_vec_len)); 747 748 CeedCallBackend(CeedOperatorSetSetupDone(op)); 749 CeedCallBackend(CeedQFunctionDestroy(&qf)); 750 return CEED_ERROR_SUCCESS; 751 } 752 753 //------------------------------------------------------------------------------ 754 // Input Basis Action AtPoints 755 //------------------------------------------------------------------------------ 756 static inline int CeedOperatorInputBasisAtPoints_Cuda(CeedOperatorField op_input_field, CeedQFunctionField qf_input_field, CeedInt input_field, 757 CeedVector in_vec, CeedVector active_e_vec, CeedInt num_elem, const CeedInt *num_points, 758 const bool skip_active, const bool skip_passive, CeedOperator_Cuda *impl) { 759 bool is_active = false; 760 CeedEvalMode eval_mode; 761 CeedVector l_vec, e_vec = impl->e_vecs_in[input_field], q_vec = impl->q_vecs_in[input_field]; 762 763 // Skip active input 764 CeedCallBackend(CeedOperatorFieldGetVector(op_input_field, &l_vec)); 765 is_active = l_vec == CEED_VECTOR_ACTIVE; 766 if (skip_active && is_active) return CEED_ERROR_SUCCESS; 767 if (skip_passive && !is_active) { 768 CeedCallBackend(CeedVectorDestroy(&l_vec)); 769 return CEED_ERROR_SUCCESS; 770 } 771 if (is_active) { 772 l_vec = in_vec; 773 if (!e_vec) e_vec = active_e_vec; 774 } 775 776 // Basis action 777 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_input_field, &eval_mode)); 778 switch (eval_mode) { 779 case CEED_EVAL_NONE: { 780 const CeedScalar *e_vec_array; 781 782 if (e_vec) { 783 CeedCallBackend(CeedVectorGetArrayRead(e_vec, CEED_MEM_DEVICE, &e_vec_array)); 784 } else { 785 CeedCallBackend(CeedVectorGetArrayRead(l_vec, CEED_MEM_DEVICE, &e_vec_array)); 786 } 787 CeedCallBackend(CeedVectorSetArray(q_vec, CEED_MEM_DEVICE, CEED_USE_POINTER, (CeedScalar *)e_vec_array)); 788 break; 789 } 790 case CEED_EVAL_INTERP: 791 case CEED_EVAL_GRAD: 792 case CEED_EVAL_DIV: 793 case CEED_EVAL_CURL: { 794 CeedBasis basis; 795 796 CeedCallBackend(CeedOperatorFieldGetBasis(op_input_field, &basis)); 797 CeedCallBackend(CeedBasisApplyAtPoints(basis, num_elem, num_points, CEED_NOTRANSPOSE, eval_mode, impl->point_coords_elem, e_vec, q_vec)); 798 CeedCallBackend(CeedBasisDestroy(&basis)); 799 break; 800 } 801 case CEED_EVAL_WEIGHT: 802 break; // No action 803 } 804 if (!is_active) CeedCallBackend(CeedVectorDestroy(&l_vec)); 805 return CEED_ERROR_SUCCESS; 806 } 807 808 //------------------------------------------------------------------------------ 809 // Apply and add to output AtPoints 810 //------------------------------------------------------------------------------ 811 static int CeedOperatorApplyAddAtPoints_Cuda(CeedOperator op, CeedVector in_vec, CeedVector out_vec, CeedRequest *request) { 812 CeedInt max_num_points, *num_points, num_elem, num_input_fields, num_output_fields; 813 Ceed ceed; 814 CeedVector active_e_vec; 815 CeedQFunctionField *qf_input_fields, *qf_output_fields; 816 CeedQFunction qf; 817 CeedOperatorField *op_input_fields, *op_output_fields; 818 CeedOperator_Cuda *impl; 819 820 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 821 CeedCallBackend(CeedOperatorGetData(op, &impl)); 822 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 823 CeedCallBackend(CeedOperatorGetNumElements(op, &num_elem)); 824 CeedCallBackend(CeedOperatorGetFields(op, &num_input_fields, &op_input_fields, &num_output_fields, &op_output_fields)); 825 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_input_fields, NULL, &qf_output_fields)); 826 827 // Setup 828 CeedCallBackend(CeedOperatorSetupAtPoints_Cuda(op)); 829 num_points = impl->num_points; 830 max_num_points = impl->max_num_points; 831 832 // Work vector 833 CeedCallBackend(CeedGetWorkVector(ceed, impl->max_active_e_vec_len, &active_e_vec)); 834 835 // Get point coordinates 836 if (!impl->point_coords_elem) { 837 CeedVector point_coords = NULL; 838 CeedElemRestriction rstr_points = NULL; 839 840 CeedCallBackend(CeedOperatorAtPointsGetPoints(op, &rstr_points, &point_coords)); 841 CeedCallBackend(CeedElemRestrictionCreateVector(rstr_points, NULL, &impl->point_coords_elem)); 842 CeedCallBackend(CeedElemRestrictionApply(rstr_points, CEED_NOTRANSPOSE, point_coords, impl->point_coords_elem, request)); 843 CeedCallBackend(CeedVectorDestroy(&point_coords)); 844 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_points)); 845 } 846 847 // Process inputs 848 for (CeedInt i = 0; i < num_input_fields; i++) { 849 CeedInt field = impl->input_field_order[i]; 850 851 CeedCallBackend( 852 CeedOperatorInputRestrict_Cuda(op_input_fields[field], qf_input_fields[field], field, in_vec, active_e_vec, false, impl, request)); 853 CeedCallBackend(CeedOperatorInputBasisAtPoints_Cuda(op_input_fields[field], qf_input_fields[field], field, in_vec, active_e_vec, num_elem, 854 num_points, false, false, impl)); 855 } 856 857 // Output pointers, as necessary 858 for (CeedInt i = 0; i < num_output_fields; i++) { 859 CeedEvalMode eval_mode; 860 861 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_output_fields[i], &eval_mode)); 862 if (eval_mode == CEED_EVAL_NONE) { 863 CeedScalar *e_vec_array; 864 865 CeedCallBackend(CeedVectorGetArrayWrite(impl->e_vecs_out[i], CEED_MEM_DEVICE, &e_vec_array)); 866 CeedCallBackend(CeedVectorSetArray(impl->q_vecs_out[i], CEED_MEM_DEVICE, CEED_USE_POINTER, e_vec_array)); 867 } 868 } 869 870 // Q function 871 CeedCallBackend(CeedQFunctionApply(qf, num_elem * max_num_points, impl->q_vecs_in, impl->q_vecs_out)); 872 873 // Restore input arrays 874 for (CeedInt i = 0; i < num_input_fields; i++) { 875 CeedCallBackend(CeedOperatorInputRestore_Cuda(op_input_fields[i], qf_input_fields[i], i, in_vec, active_e_vec, false, impl)); 876 } 877 878 // Output basis and restriction 879 for (CeedInt i = 0; i < num_output_fields; i++) { 880 bool is_active = false; 881 CeedInt field = impl->output_field_order[i]; 882 CeedEvalMode eval_mode; 883 CeedVector l_vec, e_vec = impl->e_vecs_out[field], q_vec = impl->q_vecs_out[field]; 884 885 // Output vector 886 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[field], &l_vec)); 887 is_active = l_vec == CEED_VECTOR_ACTIVE; 888 if (is_active) { 889 l_vec = out_vec; 890 if (!e_vec) e_vec = active_e_vec; 891 } 892 893 // Basis action 894 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_output_fields[field], &eval_mode)); 895 switch (eval_mode) { 896 case CEED_EVAL_NONE: 897 break; // No action 898 case CEED_EVAL_INTERP: 899 case CEED_EVAL_GRAD: 900 case CEED_EVAL_DIV: 901 case CEED_EVAL_CURL: { 902 CeedBasis basis; 903 904 CeedCallBackend(CeedOperatorFieldGetBasis(op_output_fields[field], &basis)); 905 if (impl->apply_add_basis_out[field]) { 906 CeedCallBackend(CeedBasisApplyAddAtPoints(basis, num_elem, num_points, CEED_TRANSPOSE, eval_mode, impl->point_coords_elem, q_vec, e_vec)); 907 } else { 908 CeedCallBackend(CeedBasisApplyAtPoints(basis, num_elem, num_points, CEED_TRANSPOSE, eval_mode, impl->point_coords_elem, q_vec, e_vec)); 909 } 910 CeedCallBackend(CeedBasisDestroy(&basis)); 911 break; 912 } 913 // LCOV_EXCL_START 914 case CEED_EVAL_WEIGHT: { 915 return CeedError(ceed, CEED_ERROR_BACKEND, "CEED_EVAL_WEIGHT cannot be an output evaluation mode"); 916 // LCOV_EXCL_STOP 917 } 918 } 919 920 // Restore evec 921 if (eval_mode == CEED_EVAL_NONE) { 922 CeedScalar *e_vec_array; 923 924 CeedCallBackend(CeedVectorTakeArray(impl->q_vecs_out[i], CEED_MEM_DEVICE, &e_vec_array)); 925 CeedCallBackend(CeedVectorRestoreArray(e_vec, &e_vec_array)); 926 } 927 928 // Restrict 929 if (!impl->skip_rstr_out[field]) { 930 CeedElemRestriction elem_rstr; 931 932 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_output_fields[field], &elem_rstr)); 933 CeedCallBackend(CeedElemRestrictionApply(elem_rstr, CEED_TRANSPOSE, e_vec, l_vec, request)); 934 CeedCallBackend(CeedElemRestrictionDestroy(&elem_rstr)); 935 } 936 if (!is_active) CeedCallBackend(CeedVectorDestroy(&l_vec)); 937 } 938 939 // Restore work vector 940 CeedCallBackend(CeedRestoreWorkVector(ceed, &active_e_vec)); 941 CeedCallBackend(CeedDestroy(&ceed)); 942 CeedCallBackend(CeedQFunctionDestroy(&qf)); 943 return CEED_ERROR_SUCCESS; 944 } 945 946 //------------------------------------------------------------------------------ 947 // Linear QFunction Assembly Core 948 //------------------------------------------------------------------------------ 949 static inline int CeedOperatorLinearAssembleQFunctionCore_Cuda(CeedOperator op, bool build_objects, CeedVector *assembled, CeedElemRestriction *rstr, 950 CeedRequest *request) { 951 Ceed ceed, ceed_parent; 952 CeedInt num_active_in, num_active_out, Q, num_elem, num_input_fields, num_output_fields, size; 953 CeedScalar *assembled_array; 954 CeedVector *active_inputs; 955 CeedQFunctionField *qf_input_fields, *qf_output_fields; 956 CeedQFunction qf; 957 CeedOperatorField *op_input_fields, *op_output_fields; 958 CeedOperator_Cuda *impl; 959 960 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 961 CeedCallBackend(CeedOperatorGetFallbackParentCeed(op, &ceed_parent)); 962 CeedCallBackend(CeedOperatorGetData(op, &impl)); 963 CeedCallBackend(CeedOperatorGetNumQuadraturePoints(op, &Q)); 964 CeedCallBackend(CeedOperatorGetNumElements(op, &num_elem)); 965 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 966 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_input_fields, NULL, &qf_output_fields)); 967 CeedCallBackend(CeedOperatorGetFields(op, &num_input_fields, &op_input_fields, &num_output_fields, &op_output_fields)); 968 active_inputs = impl->qf_active_in; 969 num_active_in = impl->num_active_in, num_active_out = impl->num_active_out; 970 971 // Setup 972 CeedCallBackend(CeedOperatorSetup_Cuda(op)); 973 974 // Process inputs 975 for (CeedInt i = 0; i < num_input_fields; i++) { 976 CeedCallBackend(CeedOperatorInputRestrict_Cuda(op_input_fields[i], qf_input_fields[i], i, NULL, NULL, true, impl, request)); 977 CeedCallBackend(CeedOperatorInputBasis_Cuda(op_input_fields[i], qf_input_fields[i], i, NULL, NULL, num_elem, true, impl)); 978 } 979 980 // Count number of active input fields 981 if (!num_active_in) { 982 for (CeedInt i = 0; i < num_input_fields; i++) { 983 CeedScalar *q_vec_array; 984 CeedVector l_vec; 985 986 // Check if active input 987 CeedCallBackend(CeedOperatorFieldGetVector(op_input_fields[i], &l_vec)); 988 if (l_vec == CEED_VECTOR_ACTIVE) { 989 CeedCallBackend(CeedQFunctionFieldGetSize(qf_input_fields[i], &size)); 990 CeedCallBackend(CeedVectorSetValue(impl->q_vecs_in[i], 0.0)); 991 CeedCallBackend(CeedVectorGetArray(impl->q_vecs_in[i], CEED_MEM_DEVICE, &q_vec_array)); 992 CeedCallBackend(CeedRealloc(num_active_in + size, &active_inputs)); 993 for (CeedInt field = 0; field < size; field++) { 994 CeedSize q_size = (CeedSize)Q * num_elem; 995 996 CeedCallBackend(CeedVectorCreate(ceed, q_size, &active_inputs[num_active_in + field])); 997 CeedCallBackend( 998 CeedVectorSetArray(active_inputs[num_active_in + field], CEED_MEM_DEVICE, CEED_USE_POINTER, &q_vec_array[field * Q * num_elem])); 999 } 1000 num_active_in += size; 1001 CeedCallBackend(CeedVectorRestoreArray(impl->q_vecs_in[i], &q_vec_array)); 1002 } 1003 CeedCallBackend(CeedVectorDestroy(&l_vec)); 1004 } 1005 impl->num_active_in = num_active_in; 1006 impl->qf_active_in = active_inputs; 1007 } 1008 1009 // Count number of active output fields 1010 if (!num_active_out) { 1011 for (CeedInt i = 0; i < num_output_fields; i++) { 1012 CeedVector l_vec; 1013 1014 // Check if active output 1015 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[i], &l_vec)); 1016 if (l_vec == CEED_VECTOR_ACTIVE) { 1017 CeedCallBackend(CeedQFunctionFieldGetSize(qf_output_fields[i], &size)); 1018 num_active_out += size; 1019 } 1020 CeedCallBackend(CeedVectorDestroy(&l_vec)); 1021 } 1022 impl->num_active_out = num_active_out; 1023 } 1024 1025 // Check sizes 1026 CeedCheck(num_active_in > 0 && num_active_out > 0, ceed, CEED_ERROR_BACKEND, "Cannot assemble QFunction without active inputs and outputs"); 1027 1028 // Build objects if needed 1029 if (build_objects) { 1030 CeedSize l_size = (CeedSize)num_elem * Q * num_active_in * num_active_out; 1031 CeedInt strides[3] = {1, num_elem * Q, Q}; /* *NOPAD* */ 1032 1033 // Create output restriction 1034 CeedCallBackend(CeedElemRestrictionCreateStrided(ceed_parent, num_elem, Q, num_active_in * num_active_out, 1035 (CeedSize)num_active_in * (CeedSize)num_active_out * (CeedSize)num_elem * (CeedSize)Q, strides, 1036 rstr)); 1037 // Create assembled vector 1038 CeedCallBackend(CeedVectorCreate(ceed_parent, l_size, assembled)); 1039 } 1040 CeedCallBackend(CeedVectorSetValue(*assembled, 0.0)); 1041 CeedCallBackend(CeedVectorGetArray(*assembled, CEED_MEM_DEVICE, &assembled_array)); 1042 1043 // Assemble QFunction 1044 for (CeedInt in = 0; in < num_active_in; in++) { 1045 // Set Inputs 1046 CeedCallBackend(CeedVectorSetValue(active_inputs[in], 1.0)); 1047 if (num_active_in > 1) { 1048 CeedCallBackend(CeedVectorSetValue(active_inputs[(in + num_active_in - 1) % num_active_in], 0.0)); 1049 } 1050 // Set Outputs 1051 for (CeedInt out = 0; out < num_output_fields; out++) { 1052 CeedVector l_vec; 1053 1054 // Check if active output 1055 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[out], &l_vec)); 1056 if (l_vec == CEED_VECTOR_ACTIVE) { 1057 CeedCallBackend(CeedVectorSetArray(impl->q_vecs_out[out], CEED_MEM_DEVICE, CEED_USE_POINTER, assembled_array)); 1058 CeedCallBackend(CeedQFunctionFieldGetSize(qf_output_fields[out], &size)); 1059 assembled_array += size * Q * num_elem; // Advance the pointer by the size of the output 1060 } 1061 CeedCallBackend(CeedVectorDestroy(&l_vec)); 1062 } 1063 // Apply QFunction 1064 CeedCallBackend(CeedQFunctionApply(qf, Q * num_elem, impl->q_vecs_in, impl->q_vecs_out)); 1065 } 1066 1067 // Un-set output q-vecs to prevent accidental overwrite of Assembled 1068 for (CeedInt out = 0; out < num_output_fields; out++) { 1069 CeedVector l_vec; 1070 1071 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[out], &l_vec)); 1072 if (l_vec == CEED_VECTOR_ACTIVE) { 1073 CeedCallBackend(CeedVectorTakeArray(impl->q_vecs_out[out], CEED_MEM_DEVICE, NULL)); 1074 } 1075 CeedCallBackend(CeedVectorDestroy(&l_vec)); 1076 } 1077 1078 // Restore input arrays 1079 for (CeedInt i = 0; i < num_input_fields; i++) { 1080 CeedCallBackend(CeedOperatorInputRestore_Cuda(op_input_fields[i], qf_input_fields[i], i, NULL, NULL, true, impl)); 1081 } 1082 1083 // Restore output 1084 CeedCallBackend(CeedVectorRestoreArray(*assembled, &assembled_array)); 1085 CeedCallBackend(CeedDestroy(&ceed)); 1086 CeedCallBackend(CeedDestroy(&ceed_parent)); 1087 CeedCallBackend(CeedQFunctionDestroy(&qf)); 1088 return CEED_ERROR_SUCCESS; 1089 } 1090 1091 //------------------------------------------------------------------------------ 1092 // Assemble Linear QFunction 1093 //------------------------------------------------------------------------------ 1094 static int CeedOperatorLinearAssembleQFunction_Cuda(CeedOperator op, CeedVector *assembled, CeedElemRestriction *rstr, CeedRequest *request) { 1095 return CeedOperatorLinearAssembleQFunctionCore_Cuda(op, true, assembled, rstr, request); 1096 } 1097 1098 //------------------------------------------------------------------------------ 1099 // Update Assembled Linear QFunction 1100 //------------------------------------------------------------------------------ 1101 static int CeedOperatorLinearAssembleQFunctionUpdate_Cuda(CeedOperator op, CeedVector assembled, CeedElemRestriction rstr, CeedRequest *request) { 1102 return CeedOperatorLinearAssembleQFunctionCore_Cuda(op, false, &assembled, &rstr, request); 1103 } 1104 1105 //------------------------------------------------------------------------------ 1106 // Assemble Diagonal Setup 1107 //------------------------------------------------------------------------------ 1108 static inline int CeedOperatorAssembleDiagonalSetup_Cuda(CeedOperator op) { 1109 Ceed ceed; 1110 CeedInt num_input_fields, num_output_fields, num_eval_modes_in = 0, num_eval_modes_out = 0; 1111 CeedInt q_comp, num_nodes, num_qpts; 1112 CeedEvalMode *eval_modes_in = NULL, *eval_modes_out = NULL; 1113 CeedBasis basis_in = NULL, basis_out = NULL; 1114 CeedQFunctionField *qf_fields; 1115 CeedQFunction qf; 1116 CeedOperatorField *op_fields; 1117 CeedOperator_Cuda *impl; 1118 1119 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 1120 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 1121 CeedCallBackend(CeedQFunctionGetNumArgs(qf, &num_input_fields, &num_output_fields)); 1122 1123 // Determine active input basis 1124 CeedCallBackend(CeedOperatorGetFields(op, NULL, &op_fields, NULL, NULL)); 1125 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_fields, NULL, NULL)); 1126 for (CeedInt i = 0; i < num_input_fields; i++) { 1127 CeedVector vec; 1128 1129 CeedCallBackend(CeedOperatorFieldGetVector(op_fields[i], &vec)); 1130 if (vec == CEED_VECTOR_ACTIVE) { 1131 CeedEvalMode eval_mode; 1132 CeedBasis basis; 1133 1134 CeedCallBackend(CeedOperatorFieldGetBasis(op_fields[i], &basis)); 1135 CeedCheck(!basis_in || basis_in == basis, ceed, CEED_ERROR_BACKEND, 1136 "Backend does not implement operator diagonal assembly with multiple active bases"); 1137 if (!basis_in) CeedCallBackend(CeedBasisReferenceCopy(basis, &basis_in)); 1138 CeedCallBackend(CeedBasisDestroy(&basis)); 1139 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_fields[i], &eval_mode)); 1140 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis_in, eval_mode, &q_comp)); 1141 if (eval_mode != CEED_EVAL_WEIGHT) { 1142 // q_comp = 1 if CEED_EVAL_NONE, CEED_EVAL_WEIGHT caught by QF assembly 1143 CeedCallBackend(CeedRealloc(num_eval_modes_in + q_comp, &eval_modes_in)); 1144 for (CeedInt d = 0; d < q_comp; d++) eval_modes_in[num_eval_modes_in + d] = eval_mode; 1145 num_eval_modes_in += q_comp; 1146 } 1147 } 1148 CeedCallBackend(CeedVectorDestroy(&vec)); 1149 } 1150 1151 // Determine active output basis 1152 CeedCallBackend(CeedOperatorGetFields(op, NULL, NULL, NULL, &op_fields)); 1153 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, NULL, NULL, &qf_fields)); 1154 for (CeedInt i = 0; i < num_output_fields; i++) { 1155 CeedVector vec; 1156 1157 CeedCallBackend(CeedOperatorFieldGetVector(op_fields[i], &vec)); 1158 if (vec == CEED_VECTOR_ACTIVE) { 1159 CeedBasis basis; 1160 CeedEvalMode eval_mode; 1161 1162 CeedCallBackend(CeedOperatorFieldGetBasis(op_fields[i], &basis)); 1163 CeedCheck(!basis_out || basis_out == basis, ceed, CEED_ERROR_BACKEND, 1164 "Backend does not implement operator diagonal assembly with multiple active bases"); 1165 if (!basis_out) CeedCallBackend(CeedBasisReferenceCopy(basis, &basis_out)); 1166 CeedCallBackend(CeedBasisDestroy(&basis)); 1167 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_fields[i], &eval_mode)); 1168 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis_out, eval_mode, &q_comp)); 1169 if (eval_mode != CEED_EVAL_WEIGHT) { 1170 // q_comp = 1 if CEED_EVAL_NONE, CEED_EVAL_WEIGHT caught by QF assembly 1171 CeedCallBackend(CeedRealloc(num_eval_modes_out + q_comp, &eval_modes_out)); 1172 for (CeedInt d = 0; d < q_comp; d++) eval_modes_out[num_eval_modes_out + d] = eval_mode; 1173 num_eval_modes_out += q_comp; 1174 } 1175 } 1176 CeedCallBackend(CeedVectorDestroy(&vec)); 1177 } 1178 1179 // Operator data struct 1180 CeedCallBackend(CeedOperatorGetData(op, &impl)); 1181 CeedCallBackend(CeedCalloc(1, &impl->diag)); 1182 CeedOperatorDiag_Cuda *diag = impl->diag; 1183 1184 // Basis matrices 1185 CeedCallBackend(CeedBasisGetNumNodes(basis_in, &num_nodes)); 1186 if (basis_in == CEED_BASIS_NONE) num_qpts = num_nodes; 1187 else CeedCallBackend(CeedBasisGetNumQuadraturePoints(basis_in, &num_qpts)); 1188 const CeedInt interp_bytes = num_nodes * num_qpts * sizeof(CeedScalar); 1189 const CeedInt eval_modes_bytes = sizeof(CeedEvalMode); 1190 bool has_eval_none = false; 1191 1192 // CEED_EVAL_NONE 1193 for (CeedInt i = 0; i < num_eval_modes_in; i++) has_eval_none = has_eval_none || (eval_modes_in[i] == CEED_EVAL_NONE); 1194 for (CeedInt i = 0; i < num_eval_modes_out; i++) has_eval_none = has_eval_none || (eval_modes_out[i] == CEED_EVAL_NONE); 1195 if (has_eval_none) { 1196 CeedScalar *identity = NULL; 1197 1198 CeedCallBackend(CeedCalloc(num_nodes * num_qpts, &identity)); 1199 for (CeedInt i = 0; i < (num_nodes < num_qpts ? num_nodes : num_qpts); i++) identity[i * num_nodes + i] = 1.0; 1200 CeedCallCuda(ceed, cudaMalloc((void **)&diag->d_identity, interp_bytes)); 1201 CeedCallCuda(ceed, cudaMemcpy(diag->d_identity, identity, interp_bytes, cudaMemcpyHostToDevice)); 1202 CeedCallBackend(CeedFree(&identity)); 1203 } 1204 1205 // CEED_EVAL_INTERP, CEED_EVAL_GRAD, CEED_EVAL_DIV, and CEED_EVAL_CURL 1206 for (CeedInt in = 0; in < 2; in++) { 1207 CeedFESpace fespace; 1208 CeedBasis basis = in ? basis_in : basis_out; 1209 1210 CeedCallBackend(CeedBasisGetFESpace(basis, &fespace)); 1211 switch (fespace) { 1212 case CEED_FE_SPACE_H1: { 1213 CeedInt q_comp_interp, q_comp_grad; 1214 const CeedScalar *interp, *grad; 1215 CeedScalar *d_interp, *d_grad; 1216 1217 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis, CEED_EVAL_INTERP, &q_comp_interp)); 1218 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis, CEED_EVAL_GRAD, &q_comp_grad)); 1219 1220 CeedCallBackend(CeedBasisGetInterp(basis, &interp)); 1221 CeedCallCuda(ceed, cudaMalloc((void **)&d_interp, interp_bytes * q_comp_interp)); 1222 CeedCallCuda(ceed, cudaMemcpy(d_interp, interp, interp_bytes * q_comp_interp, cudaMemcpyHostToDevice)); 1223 CeedCallBackend(CeedBasisGetGrad(basis, &grad)); 1224 CeedCallCuda(ceed, cudaMalloc((void **)&d_grad, interp_bytes * q_comp_grad)); 1225 CeedCallCuda(ceed, cudaMemcpy(d_grad, grad, interp_bytes * q_comp_grad, cudaMemcpyHostToDevice)); 1226 if (in) { 1227 diag->d_interp_in = d_interp; 1228 diag->d_grad_in = d_grad; 1229 } else { 1230 diag->d_interp_out = d_interp; 1231 diag->d_grad_out = d_grad; 1232 } 1233 } break; 1234 case CEED_FE_SPACE_HDIV: { 1235 CeedInt q_comp_interp, q_comp_div; 1236 const CeedScalar *interp, *div; 1237 CeedScalar *d_interp, *d_div; 1238 1239 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis, CEED_EVAL_INTERP, &q_comp_interp)); 1240 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis, CEED_EVAL_DIV, &q_comp_div)); 1241 1242 CeedCallBackend(CeedBasisGetInterp(basis, &interp)); 1243 CeedCallCuda(ceed, cudaMalloc((void **)&d_interp, interp_bytes * q_comp_interp)); 1244 CeedCallCuda(ceed, cudaMemcpy(d_interp, interp, interp_bytes * q_comp_interp, cudaMemcpyHostToDevice)); 1245 CeedCallBackend(CeedBasisGetDiv(basis, &div)); 1246 CeedCallCuda(ceed, cudaMalloc((void **)&d_div, interp_bytes * q_comp_div)); 1247 CeedCallCuda(ceed, cudaMemcpy(d_div, div, interp_bytes * q_comp_div, cudaMemcpyHostToDevice)); 1248 if (in) { 1249 diag->d_interp_in = d_interp; 1250 diag->d_div_in = d_div; 1251 } else { 1252 diag->d_interp_out = d_interp; 1253 diag->d_div_out = d_div; 1254 } 1255 } break; 1256 case CEED_FE_SPACE_HCURL: { 1257 CeedInt q_comp_interp, q_comp_curl; 1258 const CeedScalar *interp, *curl; 1259 CeedScalar *d_interp, *d_curl; 1260 1261 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis, CEED_EVAL_INTERP, &q_comp_interp)); 1262 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis, CEED_EVAL_CURL, &q_comp_curl)); 1263 1264 CeedCallBackend(CeedBasisGetInterp(basis, &interp)); 1265 CeedCallCuda(ceed, cudaMalloc((void **)&d_interp, interp_bytes * q_comp_interp)); 1266 CeedCallCuda(ceed, cudaMemcpy(d_interp, interp, interp_bytes * q_comp_interp, cudaMemcpyHostToDevice)); 1267 CeedCallBackend(CeedBasisGetCurl(basis, &curl)); 1268 CeedCallCuda(ceed, cudaMalloc((void **)&d_curl, interp_bytes * q_comp_curl)); 1269 CeedCallCuda(ceed, cudaMemcpy(d_curl, curl, interp_bytes * q_comp_curl, cudaMemcpyHostToDevice)); 1270 if (in) { 1271 diag->d_interp_in = d_interp; 1272 diag->d_curl_in = d_curl; 1273 } else { 1274 diag->d_interp_out = d_interp; 1275 diag->d_curl_out = d_curl; 1276 } 1277 } break; 1278 } 1279 } 1280 1281 // Arrays of eval_modes 1282 CeedCallCuda(ceed, cudaMalloc((void **)&diag->d_eval_modes_in, num_eval_modes_in * eval_modes_bytes)); 1283 CeedCallCuda(ceed, cudaMemcpy(diag->d_eval_modes_in, eval_modes_in, num_eval_modes_in * eval_modes_bytes, cudaMemcpyHostToDevice)); 1284 CeedCallCuda(ceed, cudaMalloc((void **)&diag->d_eval_modes_out, num_eval_modes_out * eval_modes_bytes)); 1285 CeedCallCuda(ceed, cudaMemcpy(diag->d_eval_modes_out, eval_modes_out, num_eval_modes_out * eval_modes_bytes, cudaMemcpyHostToDevice)); 1286 CeedCallBackend(CeedFree(&eval_modes_in)); 1287 CeedCallBackend(CeedFree(&eval_modes_out)); 1288 CeedCallBackend(CeedDestroy(&ceed)); 1289 CeedCallBackend(CeedBasisDestroy(&basis_in)); 1290 CeedCallBackend(CeedBasisDestroy(&basis_out)); 1291 CeedCallBackend(CeedQFunctionDestroy(&qf)); 1292 return CEED_ERROR_SUCCESS; 1293 } 1294 1295 //------------------------------------------------------------------------------ 1296 // Assemble Diagonal Setup (Compilation) 1297 //------------------------------------------------------------------------------ 1298 static inline int CeedOperatorAssembleDiagonalSetupCompile_Cuda(CeedOperator op, CeedInt use_ceedsize_idx, const bool is_point_block) { 1299 Ceed ceed; 1300 CeedInt num_input_fields, num_output_fields, num_eval_modes_in = 0, num_eval_modes_out = 0; 1301 CeedInt num_comp, q_comp, num_nodes, num_qpts; 1302 CeedBasis basis_in = NULL, basis_out = NULL; 1303 CeedQFunctionField *qf_fields; 1304 CeedQFunction qf; 1305 CeedOperatorField *op_fields; 1306 CeedOperator_Cuda *impl; 1307 1308 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 1309 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 1310 CeedCallBackend(CeedQFunctionGetNumArgs(qf, &num_input_fields, &num_output_fields)); 1311 1312 // Determine active input basis 1313 CeedCallBackend(CeedOperatorGetFields(op, NULL, &op_fields, NULL, NULL)); 1314 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_fields, NULL, NULL)); 1315 for (CeedInt i = 0; i < num_input_fields; i++) { 1316 CeedVector vec; 1317 1318 CeedCallBackend(CeedOperatorFieldGetVector(op_fields[i], &vec)); 1319 if (vec == CEED_VECTOR_ACTIVE) { 1320 CeedEvalMode eval_mode; 1321 CeedBasis basis; 1322 1323 CeedCallBackend(CeedOperatorFieldGetBasis(op_fields[i], &basis)); 1324 if (!basis_in) CeedCallBackend(CeedBasisReferenceCopy(basis, &basis_in)); 1325 CeedCallBackend(CeedBasisDestroy(&basis)); 1326 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_fields[i], &eval_mode)); 1327 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis_in, eval_mode, &q_comp)); 1328 if (eval_mode != CEED_EVAL_WEIGHT) { 1329 num_eval_modes_in += q_comp; 1330 } 1331 } 1332 CeedCallBackend(CeedVectorDestroy(&vec)); 1333 } 1334 1335 // Determine active output basis 1336 CeedCallBackend(CeedOperatorGetFields(op, NULL, NULL, NULL, &op_fields)); 1337 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, NULL, NULL, &qf_fields)); 1338 for (CeedInt i = 0; i < num_output_fields; i++) { 1339 CeedVector vec; 1340 1341 CeedCallBackend(CeedOperatorFieldGetVector(op_fields[i], &vec)); 1342 if (vec == CEED_VECTOR_ACTIVE) { 1343 CeedEvalMode eval_mode; 1344 CeedBasis basis; 1345 1346 CeedCallBackend(CeedOperatorFieldGetBasis(op_fields[i], &basis)); 1347 if (!basis_out) CeedCallBackend(CeedBasisReferenceCopy(basis, &basis_out)); 1348 CeedCallBackend(CeedBasisDestroy(&basis)); 1349 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_fields[i], &eval_mode)); 1350 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis_out, eval_mode, &q_comp)); 1351 if (eval_mode != CEED_EVAL_WEIGHT) { 1352 num_eval_modes_out += q_comp; 1353 } 1354 } 1355 CeedCallBackend(CeedVectorDestroy(&vec)); 1356 } 1357 1358 // Operator data struct 1359 CeedCallBackend(CeedOperatorGetData(op, &impl)); 1360 CeedOperatorDiag_Cuda *diag = impl->diag; 1361 1362 // Assemble kernel 1363 const char diagonal_kernel_source[] = "// Diagonal assembly source\n#include <ceed/jit-source/cuda/cuda-ref-operator-assemble-diagonal.h>\n"; 1364 CUmodule *module = is_point_block ? &diag->module_point_block : &diag->module; 1365 CeedInt elems_per_block = 1; 1366 1367 CeedCallBackend(CeedBasisGetNumNodes(basis_in, &num_nodes)); 1368 CeedCallBackend(CeedBasisGetNumComponents(basis_in, &num_comp)); 1369 if (basis_in == CEED_BASIS_NONE) num_qpts = num_nodes; 1370 else CeedCallBackend(CeedBasisGetNumQuadraturePoints(basis_in, &num_qpts)); 1371 CeedCallCuda(ceed, CeedCompile_Cuda(ceed, diagonal_kernel_source, module, 8, "NUM_EVAL_MODES_IN", num_eval_modes_in, "NUM_EVAL_MODES_OUT", 1372 num_eval_modes_out, "NUM_COMP", num_comp, "NUM_NODES", num_nodes, "NUM_QPTS", num_qpts, "USE_CEEDSIZE", 1373 use_ceedsize_idx, "USE_POINT_BLOCK", is_point_block ? 1 : 0, "BLOCK_SIZE", num_nodes * elems_per_block)); 1374 CeedCallCuda(ceed, CeedGetKernel_Cuda(ceed, *module, "LinearDiagonal", is_point_block ? &diag->LinearPointBlock : &diag->LinearDiagonal)); 1375 CeedCallBackend(CeedDestroy(&ceed)); 1376 CeedCallBackend(CeedBasisDestroy(&basis_in)); 1377 CeedCallBackend(CeedBasisDestroy(&basis_out)); 1378 CeedCallBackend(CeedQFunctionDestroy(&qf)); 1379 return CEED_ERROR_SUCCESS; 1380 } 1381 1382 //------------------------------------------------------------------------------ 1383 // Assemble Diagonal Core 1384 //------------------------------------------------------------------------------ 1385 static inline int CeedOperatorAssembleDiagonalCore_Cuda(CeedOperator op, CeedVector assembled, CeedRequest *request, const bool is_point_block) { 1386 Ceed ceed; 1387 CeedInt num_elem, num_nodes; 1388 CeedScalar *elem_diag_array; 1389 const CeedScalar *assembled_qf_array; 1390 CeedVector assembled_qf = NULL, elem_diag; 1391 CeedElemRestriction assembled_rstr = NULL, rstr_in, rstr_out, diag_rstr; 1392 CeedOperator_Cuda *impl; 1393 1394 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 1395 CeedCallBackend(CeedOperatorGetData(op, &impl)); 1396 1397 // Assemble QFunction 1398 CeedCallBackend(CeedOperatorLinearAssembleQFunctionBuildOrUpdate(op, &assembled_qf, &assembled_rstr, request)); 1399 CeedCallBackend(CeedElemRestrictionDestroy(&assembled_rstr)); 1400 CeedCallBackend(CeedVectorGetArrayRead(assembled_qf, CEED_MEM_DEVICE, &assembled_qf_array)); 1401 1402 // Setup 1403 if (!impl->diag) CeedCallBackend(CeedOperatorAssembleDiagonalSetup_Cuda(op)); 1404 CeedOperatorDiag_Cuda *diag = impl->diag; 1405 1406 assert(diag != NULL); 1407 1408 // Assemble kernel if needed 1409 if ((!is_point_block && !diag->LinearDiagonal) || (is_point_block && !diag->LinearPointBlock)) { 1410 CeedSize assembled_length, assembled_qf_length; 1411 CeedInt use_ceedsize_idx = 0; 1412 CeedCallBackend(CeedVectorGetLength(assembled, &assembled_length)); 1413 CeedCallBackend(CeedVectorGetLength(assembled_qf, &assembled_qf_length)); 1414 if ((assembled_length > INT_MAX) || (assembled_qf_length > INT_MAX)) use_ceedsize_idx = 1; 1415 1416 CeedCallBackend(CeedOperatorAssembleDiagonalSetupCompile_Cuda(op, use_ceedsize_idx, is_point_block)); 1417 } 1418 1419 // Restriction and diagonal vector 1420 CeedCallBackend(CeedOperatorGetActiveElemRestrictions(op, &rstr_in, &rstr_out)); 1421 CeedCheck(rstr_in == rstr_out, ceed, CEED_ERROR_BACKEND, 1422 "Cannot assemble operator diagonal with different input and output active element restrictions"); 1423 if (!is_point_block && !diag->diag_rstr) { 1424 CeedCallBackend(CeedElemRestrictionCreateUnsignedCopy(rstr_out, &diag->diag_rstr)); 1425 CeedCallBackend(CeedElemRestrictionCreateVector(diag->diag_rstr, NULL, &diag->elem_diag)); 1426 } else if (is_point_block && !diag->point_block_diag_rstr) { 1427 CeedCallBackend(CeedOperatorCreateActivePointBlockRestriction(rstr_out, &diag->point_block_diag_rstr)); 1428 CeedCallBackend(CeedElemRestrictionCreateVector(diag->point_block_diag_rstr, NULL, &diag->point_block_elem_diag)); 1429 } 1430 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_in)); 1431 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_out)); 1432 diag_rstr = is_point_block ? diag->point_block_diag_rstr : diag->diag_rstr; 1433 elem_diag = is_point_block ? diag->point_block_elem_diag : diag->elem_diag; 1434 CeedCallBackend(CeedVectorSetValue(elem_diag, 0.0)); 1435 1436 // Only assemble diagonal if the basis has nodes, otherwise inputs are null pointers 1437 CeedCallBackend(CeedElemRestrictionGetElementSize(diag_rstr, &num_nodes)); 1438 if (num_nodes > 0) { 1439 // Assemble element operator diagonals 1440 CeedCallBackend(CeedElemRestrictionGetNumElements(diag_rstr, &num_elem)); 1441 CeedCallBackend(CeedVectorGetArray(elem_diag, CEED_MEM_DEVICE, &elem_diag_array)); 1442 1443 // Compute the diagonal of B^T D B 1444 CeedInt elems_per_block = 1; 1445 CeedInt grid = CeedDivUpInt(num_elem, elems_per_block); 1446 void *args[] = {(void *)&num_elem, &diag->d_identity, &diag->d_interp_in, &diag->d_grad_in, &diag->d_div_in, 1447 &diag->d_curl_in, &diag->d_interp_out, &diag->d_grad_out, &diag->d_div_out, &diag->d_curl_out, 1448 &diag->d_eval_modes_in, &diag->d_eval_modes_out, &assembled_qf_array, &elem_diag_array}; 1449 1450 if (is_point_block) { 1451 CeedCallBackend(CeedRunKernelDim_Cuda(ceed, diag->LinearPointBlock, grid, num_nodes, 1, elems_per_block, args)); 1452 } else { 1453 CeedCallBackend(CeedRunKernelDim_Cuda(ceed, diag->LinearDiagonal, grid, num_nodes, 1, elems_per_block, args)); 1454 } 1455 1456 // Restore arrays 1457 CeedCallBackend(CeedVectorRestoreArray(elem_diag, &elem_diag_array)); 1458 CeedCallBackend(CeedVectorRestoreArrayRead(assembled_qf, &assembled_qf_array)); 1459 } 1460 1461 // Assemble local operator diagonal 1462 CeedCallBackend(CeedElemRestrictionApply(diag_rstr, CEED_TRANSPOSE, elem_diag, assembled, request)); 1463 1464 // Cleanup 1465 CeedCallBackend(CeedDestroy(&ceed)); 1466 CeedCallBackend(CeedVectorDestroy(&assembled_qf)); 1467 return CEED_ERROR_SUCCESS; 1468 } 1469 1470 //------------------------------------------------------------------------------ 1471 // Assemble Linear Diagonal 1472 //------------------------------------------------------------------------------ 1473 static int CeedOperatorLinearAssembleAddDiagonal_Cuda(CeedOperator op, CeedVector assembled, CeedRequest *request) { 1474 CeedCallBackend(CeedOperatorAssembleDiagonalCore_Cuda(op, assembled, request, false)); 1475 return CEED_ERROR_SUCCESS; 1476 } 1477 1478 //------------------------------------------------------------------------------ 1479 // Assemble Linear Point Block Diagonal 1480 //------------------------------------------------------------------------------ 1481 static int CeedOperatorLinearAssembleAddPointBlockDiagonal_Cuda(CeedOperator op, CeedVector assembled, CeedRequest *request) { 1482 CeedCallBackend(CeedOperatorAssembleDiagonalCore_Cuda(op, assembled, request, true)); 1483 return CEED_ERROR_SUCCESS; 1484 } 1485 1486 //------------------------------------------------------------------------------ 1487 // Single Operator Assembly Setup 1488 //------------------------------------------------------------------------------ 1489 static int CeedSingleOperatorAssembleSetup_Cuda(CeedOperator op, CeedInt use_ceedsize_idx) { 1490 Ceed ceed; 1491 Ceed_Cuda *cuda_data; 1492 CeedInt num_input_fields, num_output_fields, num_eval_modes_in = 0, num_eval_modes_out = 0; 1493 CeedInt elem_size_in, num_qpts_in = 0, num_comp_in, elem_size_out, num_qpts_out, num_comp_out, q_comp; 1494 CeedEvalMode *eval_modes_in = NULL, *eval_modes_out = NULL; 1495 CeedElemRestriction rstr_in = NULL, rstr_out = NULL; 1496 CeedBasis basis_in = NULL, basis_out = NULL; 1497 CeedQFunctionField *qf_fields; 1498 CeedQFunction qf; 1499 CeedOperatorField *input_fields, *output_fields; 1500 CeedOperator_Cuda *impl; 1501 1502 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 1503 CeedCallBackend(CeedOperatorGetData(op, &impl)); 1504 1505 // Get intput and output fields 1506 CeedCallBackend(CeedOperatorGetFields(op, &num_input_fields, &input_fields, &num_output_fields, &output_fields)); 1507 1508 // Determine active input basis eval mode 1509 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 1510 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_fields, NULL, NULL)); 1511 for (CeedInt i = 0; i < num_input_fields; i++) { 1512 CeedVector vec; 1513 1514 CeedCallBackend(CeedOperatorFieldGetVector(input_fields[i], &vec)); 1515 if (vec == CEED_VECTOR_ACTIVE) { 1516 CeedEvalMode eval_mode; 1517 CeedElemRestriction elem_rstr; 1518 CeedBasis basis; 1519 1520 CeedCallBackend(CeedOperatorFieldGetBasis(input_fields[i], &basis)); 1521 CeedCheck(!basis_in || basis_in == basis, ceed, CEED_ERROR_BACKEND, "Backend does not implement operator assembly with multiple active bases"); 1522 if (!basis_in) CeedCallBackend(CeedBasisReferenceCopy(basis, &basis_in)); 1523 CeedCallBackend(CeedBasisDestroy(&basis)); 1524 CeedCallBackend(CeedOperatorFieldGetElemRestriction(input_fields[i], &elem_rstr)); 1525 if (!rstr_in) CeedCallBackend(CeedElemRestrictionReferenceCopy(elem_rstr, &rstr_in)); 1526 CeedCallBackend(CeedElemRestrictionDestroy(&elem_rstr)); 1527 CeedCallBackend(CeedElemRestrictionGetElementSize(rstr_in, &elem_size_in)); 1528 if (basis_in == CEED_BASIS_NONE) num_qpts_in = elem_size_in; 1529 else CeedCallBackend(CeedBasisGetNumQuadraturePoints(basis_in, &num_qpts_in)); 1530 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_fields[i], &eval_mode)); 1531 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis_in, eval_mode, &q_comp)); 1532 if (eval_mode != CEED_EVAL_WEIGHT) { 1533 // q_comp = 1 if CEED_EVAL_NONE, CEED_EVAL_WEIGHT caught by QF Assembly 1534 CeedCallBackend(CeedRealloc(num_eval_modes_in + q_comp, &eval_modes_in)); 1535 for (CeedInt d = 0; d < q_comp; d++) { 1536 eval_modes_in[num_eval_modes_in + d] = eval_mode; 1537 } 1538 num_eval_modes_in += q_comp; 1539 } 1540 } 1541 CeedCallBackend(CeedVectorDestroy(&vec)); 1542 } 1543 1544 // Determine active output basis; basis_out and rstr_out only used if same as input, TODO 1545 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, NULL, NULL, &qf_fields)); 1546 for (CeedInt i = 0; i < num_output_fields; i++) { 1547 CeedVector vec; 1548 1549 CeedCallBackend(CeedOperatorFieldGetVector(output_fields[i], &vec)); 1550 if (vec == CEED_VECTOR_ACTIVE) { 1551 CeedEvalMode eval_mode; 1552 CeedElemRestriction elem_rstr; 1553 CeedBasis basis; 1554 1555 CeedCallBackend(CeedOperatorFieldGetBasis(output_fields[i], &basis)); 1556 CeedCheck(!basis_out || basis_out == basis, ceed, CEED_ERROR_BACKEND, 1557 "Backend does not implement operator assembly with multiple active bases"); 1558 if (!basis_out) CeedCallBackend(CeedBasisReferenceCopy(basis, &basis_out)); 1559 CeedCallBackend(CeedBasisDestroy(&basis)); 1560 CeedCallBackend(CeedOperatorFieldGetElemRestriction(output_fields[i], &elem_rstr)); 1561 if (!rstr_out) CeedCallBackend(CeedElemRestrictionReferenceCopy(elem_rstr, &rstr_out)); 1562 CeedCallBackend(CeedElemRestrictionDestroy(&elem_rstr)); 1563 CeedCallBackend(CeedElemRestrictionGetElementSize(rstr_out, &elem_size_out)); 1564 if (basis_out == CEED_BASIS_NONE) num_qpts_out = elem_size_out; 1565 else CeedCallBackend(CeedBasisGetNumQuadraturePoints(basis_out, &num_qpts_out)); 1566 CeedCheck(num_qpts_in == num_qpts_out, ceed, CEED_ERROR_UNSUPPORTED, 1567 "Active input and output bases must have the same number of quadrature points"); 1568 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_fields[i], &eval_mode)); 1569 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis_out, eval_mode, &q_comp)); 1570 if (eval_mode != CEED_EVAL_WEIGHT) { 1571 // q_comp = 1 if CEED_EVAL_NONE, CEED_EVAL_WEIGHT caught by QF Assembly 1572 CeedCallBackend(CeedRealloc(num_eval_modes_out + q_comp, &eval_modes_out)); 1573 for (CeedInt d = 0; d < q_comp; d++) { 1574 eval_modes_out[num_eval_modes_out + d] = eval_mode; 1575 } 1576 num_eval_modes_out += q_comp; 1577 } 1578 } 1579 CeedCallBackend(CeedVectorDestroy(&vec)); 1580 } 1581 CeedCheck(num_eval_modes_in > 0 && num_eval_modes_out > 0, ceed, CEED_ERROR_UNSUPPORTED, "Cannot assemble operator without inputs/outputs"); 1582 1583 CeedCallBackend(CeedCalloc(1, &impl->asmb)); 1584 CeedOperatorAssemble_Cuda *asmb = impl->asmb; 1585 asmb->elems_per_block = 1; 1586 asmb->block_size_x = elem_size_in; 1587 asmb->block_size_y = elem_size_out; 1588 1589 CeedCallBackend(CeedGetData(ceed, &cuda_data)); 1590 bool fallback = asmb->block_size_x * asmb->block_size_y * asmb->elems_per_block > cuda_data->device_prop.maxThreadsPerBlock; 1591 1592 if (fallback) { 1593 // Use fallback kernel with 1D threadblock 1594 asmb->block_size_y = 1; 1595 } 1596 1597 // Compile kernels 1598 const char assembly_kernel_source[] = "// Full assembly source\n#include <ceed/jit-source/cuda/cuda-ref-operator-assemble.h>\n"; 1599 1600 CeedCallBackend(CeedElemRestrictionGetNumComponents(rstr_in, &num_comp_in)); 1601 CeedCallBackend(CeedElemRestrictionGetNumComponents(rstr_out, &num_comp_out)); 1602 CeedCallBackend(CeedCompile_Cuda(ceed, assembly_kernel_source, &asmb->module, 10, "NUM_EVAL_MODES_IN", num_eval_modes_in, "NUM_EVAL_MODES_OUT", 1603 num_eval_modes_out, "NUM_COMP_IN", num_comp_in, "NUM_COMP_OUT", num_comp_out, "NUM_NODES_IN", elem_size_in, 1604 "NUM_NODES_OUT", elem_size_out, "NUM_QPTS", num_qpts_in, "BLOCK_SIZE", 1605 asmb->block_size_x * asmb->block_size_y * asmb->elems_per_block, "BLOCK_SIZE_Y", asmb->block_size_y, 1606 "USE_CEEDSIZE", use_ceedsize_idx)); 1607 CeedCallBackend(CeedGetKernel_Cuda(ceed, asmb->module, "LinearAssemble", &asmb->LinearAssemble)); 1608 1609 // Load into B_in, in order that they will be used in eval_modes_in 1610 { 1611 const CeedInt in_bytes = elem_size_in * num_qpts_in * num_eval_modes_in * sizeof(CeedScalar); 1612 CeedInt d_in = 0; 1613 CeedEvalMode eval_modes_in_prev = CEED_EVAL_NONE; 1614 bool has_eval_none = false; 1615 CeedScalar *identity = NULL; 1616 1617 for (CeedInt i = 0; i < num_eval_modes_in; i++) { 1618 has_eval_none = has_eval_none || (eval_modes_in[i] == CEED_EVAL_NONE); 1619 } 1620 if (has_eval_none) { 1621 CeedCallBackend(CeedCalloc(elem_size_in * num_qpts_in, &identity)); 1622 for (CeedInt i = 0; i < (elem_size_in < num_qpts_in ? elem_size_in : num_qpts_in); i++) identity[i * elem_size_in + i] = 1.0; 1623 } 1624 1625 CeedCallCuda(ceed, cudaMalloc((void **)&asmb->d_B_in, in_bytes)); 1626 for (CeedInt i = 0; i < num_eval_modes_in; i++) { 1627 const CeedScalar *h_B_in; 1628 1629 CeedCallBackend(CeedOperatorGetBasisPointer(basis_in, eval_modes_in[i], identity, &h_B_in)); 1630 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis_in, eval_modes_in[i], &q_comp)); 1631 if (q_comp > 1) { 1632 if (i == 0 || eval_modes_in[i] != eval_modes_in_prev) d_in = 0; 1633 else h_B_in = &h_B_in[(++d_in) * elem_size_in * num_qpts_in]; 1634 } 1635 eval_modes_in_prev = eval_modes_in[i]; 1636 1637 CeedCallCuda(ceed, cudaMemcpy(&asmb->d_B_in[i * elem_size_in * num_qpts_in], h_B_in, elem_size_in * num_qpts_in * sizeof(CeedScalar), 1638 cudaMemcpyHostToDevice)); 1639 } 1640 CeedCallBackend(CeedFree(&identity)); 1641 } 1642 CeedCallBackend(CeedFree(&eval_modes_in)); 1643 1644 // Load into B_out, in order that they will be used in eval_modes_out 1645 { 1646 const CeedInt out_bytes = elem_size_out * num_qpts_out * num_eval_modes_out * sizeof(CeedScalar); 1647 CeedInt d_out = 0; 1648 CeedEvalMode eval_modes_out_prev = CEED_EVAL_NONE; 1649 bool has_eval_none = false; 1650 CeedScalar *identity = NULL; 1651 1652 for (CeedInt i = 0; i < num_eval_modes_out; i++) { 1653 has_eval_none = has_eval_none || (eval_modes_out[i] == CEED_EVAL_NONE); 1654 } 1655 if (has_eval_none) { 1656 CeedCallBackend(CeedCalloc(elem_size_out * num_qpts_out, &identity)); 1657 for (CeedInt i = 0; i < (elem_size_out < num_qpts_out ? elem_size_out : num_qpts_out); i++) identity[i * elem_size_out + i] = 1.0; 1658 } 1659 1660 CeedCallCuda(ceed, cudaMalloc((void **)&asmb->d_B_out, out_bytes)); 1661 for (CeedInt i = 0; i < num_eval_modes_out; i++) { 1662 const CeedScalar *h_B_out; 1663 1664 CeedCallBackend(CeedOperatorGetBasisPointer(basis_out, eval_modes_out[i], identity, &h_B_out)); 1665 CeedCallBackend(CeedBasisGetNumQuadratureComponents(basis_out, eval_modes_out[i], &q_comp)); 1666 if (q_comp > 1) { 1667 if (i == 0 || eval_modes_out[i] != eval_modes_out_prev) d_out = 0; 1668 else h_B_out = &h_B_out[(++d_out) * elem_size_out * num_qpts_out]; 1669 } 1670 eval_modes_out_prev = eval_modes_out[i]; 1671 1672 CeedCallCuda(ceed, cudaMemcpy(&asmb->d_B_out[i * elem_size_out * num_qpts_out], h_B_out, elem_size_out * num_qpts_out * sizeof(CeedScalar), 1673 cudaMemcpyHostToDevice)); 1674 } 1675 CeedCallBackend(CeedFree(&identity)); 1676 } 1677 CeedCallBackend(CeedFree(&eval_modes_out)); 1678 CeedCallBackend(CeedDestroy(&ceed)); 1679 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_in)); 1680 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_out)); 1681 CeedCallBackend(CeedBasisDestroy(&basis_in)); 1682 CeedCallBackend(CeedBasisDestroy(&basis_out)); 1683 CeedCallBackend(CeedQFunctionDestroy(&qf)); 1684 return CEED_ERROR_SUCCESS; 1685 } 1686 1687 //------------------------------------------------------------------------------ 1688 // Assemble matrix data for COO matrix of assembled operator. 1689 // The sparsity pattern is set by CeedOperatorLinearAssembleSymbolic. 1690 // 1691 // Note that this (and other assembly routines) currently assume only one active input restriction/basis per operator 1692 // (could have multiple basis eval modes). 1693 // TODO: allow multiple active input restrictions/basis objects 1694 //------------------------------------------------------------------------------ 1695 static int CeedSingleOperatorAssemble_Cuda(CeedOperator op, CeedInt offset, CeedVector values) { 1696 Ceed ceed; 1697 CeedSize values_length = 0, assembled_qf_length = 0; 1698 CeedInt use_ceedsize_idx = 0, num_elem_in, num_elem_out, elem_size_in, elem_size_out; 1699 CeedScalar *values_array; 1700 const CeedScalar *assembled_qf_array; 1701 CeedVector assembled_qf = NULL; 1702 CeedElemRestriction assembled_rstr = NULL, rstr_in, rstr_out; 1703 CeedRestrictionType rstr_type_in, rstr_type_out; 1704 const bool *orients_in = NULL, *orients_out = NULL; 1705 const CeedInt8 *curl_orients_in = NULL, *curl_orients_out = NULL; 1706 CeedOperator_Cuda *impl; 1707 1708 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 1709 CeedCallBackend(CeedOperatorGetData(op, &impl)); 1710 1711 // Assemble QFunction 1712 CeedCallBackend(CeedOperatorLinearAssembleQFunctionBuildOrUpdate(op, &assembled_qf, &assembled_rstr, CEED_REQUEST_IMMEDIATE)); 1713 CeedCallBackend(CeedElemRestrictionDestroy(&assembled_rstr)); 1714 CeedCallBackend(CeedVectorGetArrayRead(assembled_qf, CEED_MEM_DEVICE, &assembled_qf_array)); 1715 1716 CeedCallBackend(CeedVectorGetLength(values, &values_length)); 1717 CeedCallBackend(CeedVectorGetLength(assembled_qf, &assembled_qf_length)); 1718 if ((values_length > INT_MAX) || (assembled_qf_length > INT_MAX)) use_ceedsize_idx = 1; 1719 1720 // Setup 1721 if (!impl->asmb) CeedCallBackend(CeedSingleOperatorAssembleSetup_Cuda(op, use_ceedsize_idx)); 1722 CeedOperatorAssemble_Cuda *asmb = impl->asmb; 1723 1724 assert(asmb != NULL); 1725 1726 // Assemble element operator 1727 CeedCallBackend(CeedVectorGetArray(values, CEED_MEM_DEVICE, &values_array)); 1728 values_array += offset; 1729 1730 CeedCallBackend(CeedOperatorGetActiveElemRestrictions(op, &rstr_in, &rstr_out)); 1731 CeedCallBackend(CeedElemRestrictionGetNumElements(rstr_in, &num_elem_in)); 1732 CeedCallBackend(CeedElemRestrictionGetElementSize(rstr_in, &elem_size_in)); 1733 1734 CeedCallBackend(CeedElemRestrictionGetType(rstr_in, &rstr_type_in)); 1735 if (rstr_type_in == CEED_RESTRICTION_ORIENTED) { 1736 CeedCallBackend(CeedElemRestrictionGetOrientations(rstr_in, CEED_MEM_DEVICE, &orients_in)); 1737 } else if (rstr_type_in == CEED_RESTRICTION_CURL_ORIENTED) { 1738 CeedCallBackend(CeedElemRestrictionGetCurlOrientations(rstr_in, CEED_MEM_DEVICE, &curl_orients_in)); 1739 } 1740 1741 if (rstr_in != rstr_out) { 1742 CeedCallBackend(CeedElemRestrictionGetNumElements(rstr_out, &num_elem_out)); 1743 CeedCheck(num_elem_in == num_elem_out, ceed, CEED_ERROR_UNSUPPORTED, 1744 "Active input and output operator restrictions must have the same number of elements"); 1745 CeedCallBackend(CeedElemRestrictionGetElementSize(rstr_out, &elem_size_out)); 1746 1747 CeedCallBackend(CeedElemRestrictionGetType(rstr_out, &rstr_type_out)); 1748 if (rstr_type_out == CEED_RESTRICTION_ORIENTED) { 1749 CeedCallBackend(CeedElemRestrictionGetOrientations(rstr_out, CEED_MEM_DEVICE, &orients_out)); 1750 } else if (rstr_type_out == CEED_RESTRICTION_CURL_ORIENTED) { 1751 CeedCallBackend(CeedElemRestrictionGetCurlOrientations(rstr_out, CEED_MEM_DEVICE, &curl_orients_out)); 1752 } 1753 } else { 1754 elem_size_out = elem_size_in; 1755 orients_out = orients_in; 1756 curl_orients_out = curl_orients_in; 1757 } 1758 1759 // Compute B^T D B 1760 CeedInt shared_mem = 1761 ((curl_orients_in || curl_orients_out ? elem_size_in * elem_size_out : 0) + (curl_orients_in ? elem_size_in * asmb->block_size_y : 0)) * 1762 sizeof(CeedScalar); 1763 CeedInt grid = CeedDivUpInt(num_elem_in, asmb->elems_per_block); 1764 void *args[] = {(void *)&num_elem_in, &asmb->d_B_in, &asmb->d_B_out, &orients_in, &curl_orients_in, 1765 &orients_out, &curl_orients_out, &assembled_qf_array, &values_array}; 1766 1767 CeedCallBackend(CeedRunKernelDimShared_Cuda(ceed, asmb->LinearAssemble, NULL, grid, asmb->block_size_x, asmb->block_size_y, asmb->elems_per_block, 1768 shared_mem, args)); 1769 1770 // Restore arrays 1771 CeedCallBackend(CeedVectorRestoreArray(values, &values_array)); 1772 CeedCallBackend(CeedVectorRestoreArrayRead(assembled_qf, &assembled_qf_array)); 1773 1774 // Cleanup 1775 CeedCallBackend(CeedVectorDestroy(&assembled_qf)); 1776 if (rstr_type_in == CEED_RESTRICTION_ORIENTED) { 1777 CeedCallBackend(CeedElemRestrictionRestoreOrientations(rstr_in, &orients_in)); 1778 } else if (rstr_type_in == CEED_RESTRICTION_CURL_ORIENTED) { 1779 CeedCallBackend(CeedElemRestrictionRestoreCurlOrientations(rstr_in, &curl_orients_in)); 1780 } 1781 if (rstr_in != rstr_out) { 1782 if (rstr_type_out == CEED_RESTRICTION_ORIENTED) { 1783 CeedCallBackend(CeedElemRestrictionRestoreOrientations(rstr_out, &orients_out)); 1784 } else if (rstr_type_out == CEED_RESTRICTION_CURL_ORIENTED) { 1785 CeedCallBackend(CeedElemRestrictionRestoreCurlOrientations(rstr_out, &curl_orients_out)); 1786 } 1787 } 1788 CeedCallBackend(CeedDestroy(&ceed)); 1789 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_in)); 1790 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_out)); 1791 return CEED_ERROR_SUCCESS; 1792 } 1793 1794 //------------------------------------------------------------------------------ 1795 // Assemble Linear QFunction AtPoints 1796 //------------------------------------------------------------------------------ 1797 static int CeedOperatorLinearAssembleQFunctionAtPoints_Cuda(CeedOperator op, CeedVector *assembled, CeedElemRestriction *rstr, CeedRequest *request) { 1798 return CeedError(CeedOperatorReturnCeed(op), CEED_ERROR_BACKEND, "Backend does not implement CeedOperatorLinearAssembleQFunction"); 1799 } 1800 1801 //------------------------------------------------------------------------------ 1802 // Assemble Linear Diagonal AtPoints 1803 //------------------------------------------------------------------------------ 1804 static int CeedOperatorLinearAssembleAddDiagonalAtPoints_Cuda(CeedOperator op, CeedVector assembled, CeedRequest *request) { 1805 CeedInt max_num_points, *num_points, num_elem, num_input_fields, num_output_fields; 1806 Ceed ceed; 1807 CeedVector active_e_vec_in, active_e_vec_out; 1808 CeedQFunctionField *qf_input_fields, *qf_output_fields; 1809 CeedQFunction qf; 1810 CeedOperatorField *op_input_fields, *op_output_fields; 1811 CeedOperator_Cuda *impl; 1812 1813 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 1814 CeedCallBackend(CeedOperatorGetData(op, &impl)); 1815 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 1816 CeedCallBackend(CeedOperatorGetNumElements(op, &num_elem)); 1817 CeedCallBackend(CeedOperatorGetFields(op, &num_input_fields, &op_input_fields, &num_output_fields, &op_output_fields)); 1818 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_input_fields, NULL, &qf_output_fields)); 1819 1820 // Setup 1821 CeedCallBackend(CeedOperatorSetupAtPoints_Cuda(op)); 1822 num_points = impl->num_points; 1823 max_num_points = impl->max_num_points; 1824 1825 // Work vector 1826 CeedCallBackend(CeedGetWorkVector(ceed, impl->max_active_e_vec_len, &active_e_vec_in)); 1827 CeedCallBackend(CeedGetWorkVector(ceed, impl->max_active_e_vec_len, &active_e_vec_out)); 1828 { 1829 CeedSize length_in, length_out; 1830 1831 CeedCallBackend(CeedVectorGetLength(active_e_vec_in, &length_in)); 1832 CeedCallBackend(CeedVectorGetLength(active_e_vec_out, &length_out)); 1833 // Need input e_vec to be longer 1834 if (length_in < length_out) { 1835 CeedVector temp = active_e_vec_in; 1836 1837 active_e_vec_in = active_e_vec_out; 1838 active_e_vec_out = temp; 1839 } 1840 } 1841 1842 // Get point coordinates 1843 if (!impl->point_coords_elem) { 1844 CeedVector point_coords = NULL; 1845 CeedElemRestriction rstr_points = NULL; 1846 1847 CeedCallBackend(CeedOperatorAtPointsGetPoints(op, &rstr_points, &point_coords)); 1848 CeedCallBackend(CeedElemRestrictionCreateVector(rstr_points, NULL, &impl->point_coords_elem)); 1849 CeedCallBackend(CeedElemRestrictionApply(rstr_points, CEED_NOTRANSPOSE, point_coords, impl->point_coords_elem, request)); 1850 CeedCallBackend(CeedVectorDestroy(&point_coords)); 1851 CeedCallBackend(CeedElemRestrictionDestroy(&rstr_points)); 1852 } 1853 1854 // Process inputs 1855 for (CeedInt i = 0; i < num_input_fields; i++) { 1856 CeedCallBackend(CeedOperatorInputRestrict_Cuda(op_input_fields[i], qf_input_fields[i], i, NULL, NULL, true, impl, request)); 1857 CeedCallBackend( 1858 CeedOperatorInputBasisAtPoints_Cuda(op_input_fields[i], qf_input_fields[i], i, NULL, NULL, num_elem, num_points, true, false, impl)); 1859 } 1860 1861 // Output pointers, as necessary 1862 for (CeedInt i = 0; i < num_output_fields; i++) { 1863 CeedEvalMode eval_mode; 1864 1865 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_output_fields[i], &eval_mode)); 1866 if (eval_mode == CEED_EVAL_NONE) { 1867 CeedScalar *e_vec_array; 1868 1869 CeedCallBackend(CeedVectorGetArrayWrite(impl->e_vecs_out[i], CEED_MEM_DEVICE, &e_vec_array)); 1870 CeedCallBackend(CeedVectorSetArray(impl->q_vecs_out[i], CEED_MEM_DEVICE, CEED_USE_POINTER, e_vec_array)); 1871 } 1872 } 1873 1874 // Loop over active fields 1875 for (CeedInt i = 0; i < num_input_fields; i++) { 1876 bool is_active = false, is_active_at_points = true; 1877 CeedInt elem_size = 1, num_comp_active = 1, e_vec_size = 0, field_in = impl->input_field_order[i]; 1878 CeedRestrictionType rstr_type; 1879 CeedVector l_vec; 1880 CeedElemRestriction elem_rstr; 1881 1882 // -- Skip non-active input 1883 CeedCallBackend(CeedOperatorFieldGetVector(op_input_fields[field_in], &l_vec)); 1884 is_active = l_vec == CEED_VECTOR_ACTIVE; 1885 CeedCallBackend(CeedVectorDestroy(&l_vec)); 1886 if (!is_active || impl->skip_rstr_in[field_in]) continue; 1887 1888 // -- Get active restriction type 1889 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_input_fields[field_in], &elem_rstr)); 1890 CeedCallBackend(CeedElemRestrictionGetType(elem_rstr, &rstr_type)); 1891 is_active_at_points = rstr_type == CEED_RESTRICTION_POINTS; 1892 if (!is_active_at_points) CeedCallBackend(CeedElemRestrictionGetElementSize(elem_rstr, &elem_size)); 1893 else elem_size = max_num_points; 1894 CeedCallBackend(CeedElemRestrictionGetNumComponents(elem_rstr, &num_comp_active)); 1895 CeedCallBackend(CeedElemRestrictionDestroy(&elem_rstr)); 1896 1897 e_vec_size = elem_size * num_comp_active; 1898 CeedCallBackend(CeedVectorSetValue(active_e_vec_in, 0.0)); 1899 for (CeedInt s = 0; s < e_vec_size; s++) { 1900 CeedVector q_vec = impl->q_vecs_in[field_in]; 1901 1902 // Update unit vector 1903 { 1904 // Note: E-vec strides are node * (1) + comp * (elem_size * num_elem) + elem * (elem_size) 1905 CeedInt node = (s - 1) % elem_size, comp = (s - 1) / elem_size; 1906 CeedSize start = node * 1 + comp * (elem_size * num_elem); 1907 CeedSize stop = (comp + 1) * (elem_size * num_elem); 1908 1909 if (s != 0) CeedCallBackend(CeedVectorSetValueStrided(active_e_vec_in, start, stop, elem_size, 0.0)); 1910 1911 node = s % elem_size, comp = s / elem_size; 1912 start = node * 1 + comp * (elem_size * num_elem); 1913 stop = (comp + 1) * (elem_size * num_elem); 1914 CeedCallBackend(CeedVectorSetValueStrided(active_e_vec_in, start, stop, elem_size, 1.0)); 1915 } 1916 1917 // Basis action 1918 for (CeedInt j = 0; j < num_input_fields; j++) { 1919 CeedInt field = impl->input_field_order[j]; 1920 1921 CeedCallBackend(CeedOperatorInputBasisAtPoints_Cuda(op_input_fields[field], qf_input_fields[field], field, NULL, active_e_vec_in, num_elem, 1922 num_points, false, true, impl)); 1923 } 1924 1925 // Q function 1926 CeedCallBackend(CeedQFunctionApply(qf, num_elem * max_num_points, impl->q_vecs_in, impl->q_vecs_out)); 1927 1928 // Output basis apply if needed 1929 for (CeedInt j = 0; j < num_output_fields; j++) { 1930 bool is_active = false; 1931 CeedInt elem_size = 0; 1932 CeedInt field_out = impl->output_field_order[j]; 1933 CeedRestrictionType rstr_type; 1934 CeedEvalMode eval_mode; 1935 CeedVector l_vec, e_vec = impl->e_vecs_out[field_out], q_vec = impl->q_vecs_out[field_out]; 1936 CeedElemRestriction elem_rstr; 1937 1938 // ---- Skip non-active output 1939 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[field_out], &l_vec)); 1940 is_active = l_vec == CEED_VECTOR_ACTIVE; 1941 CeedCallBackend(CeedVectorDestroy(&l_vec)); 1942 if (!is_active) continue; 1943 if (!e_vec) e_vec = active_e_vec_out; 1944 1945 // ---- Check if elem size matches 1946 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_output_fields[field_out], &elem_rstr)); 1947 CeedCallBackend(CeedElemRestrictionGetType(elem_rstr, &rstr_type)); 1948 if (is_active_at_points && rstr_type != CEED_RESTRICTION_POINTS) continue; 1949 if (rstr_type == CEED_RESTRICTION_POINTS) { 1950 CeedCallBackend(CeedElemRestrictionGetMaxPointsInElement(elem_rstr, &elem_size)); 1951 } else { 1952 CeedCallBackend(CeedElemRestrictionGetElementSize(elem_rstr, &elem_size)); 1953 } 1954 { 1955 CeedInt num_comp = 0; 1956 1957 CeedCallBackend(CeedElemRestrictionGetNumComponents(elem_rstr, &num_comp)); 1958 if (e_vec_size != num_comp * elem_size) continue; 1959 } 1960 1961 // Basis action 1962 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_output_fields[field_out], &eval_mode)); 1963 switch (eval_mode) { 1964 case CEED_EVAL_NONE: { 1965 CeedScalar *e_vec_array; 1966 1967 CeedCallBackend(CeedVectorTakeArray(q_vec, CEED_MEM_DEVICE, &e_vec_array)); 1968 CeedCallBackend(CeedVectorRestoreArray(e_vec, &e_vec_array)); 1969 break; 1970 } 1971 case CEED_EVAL_INTERP: 1972 case CEED_EVAL_GRAD: 1973 case CEED_EVAL_DIV: 1974 case CEED_EVAL_CURL: { 1975 CeedBasis basis; 1976 1977 CeedCallBackend(CeedOperatorFieldGetBasis(op_output_fields[field_out], &basis)); 1978 if (impl->apply_add_basis_out[field_out]) { 1979 CeedCallBackend( 1980 CeedBasisApplyAddAtPoints(basis, num_elem, num_points, CEED_TRANSPOSE, eval_mode, impl->point_coords_elem, q_vec, e_vec)); 1981 } else { 1982 CeedCallBackend(CeedBasisApplyAtPoints(basis, num_elem, num_points, CEED_TRANSPOSE, eval_mode, impl->point_coords_elem, q_vec, e_vec)); 1983 } 1984 CeedCallBackend(CeedBasisDestroy(&basis)); 1985 break; 1986 } 1987 // LCOV_EXCL_START 1988 case CEED_EVAL_WEIGHT: { 1989 return CeedError(CeedOperatorReturnCeed(op), CEED_ERROR_BACKEND, "CEED_EVAL_WEIGHT cannot be an output evaluation mode"); 1990 // LCOV_EXCL_STOP 1991 } 1992 } 1993 1994 // Mask output e-vec 1995 if (impl->skip_rstr_out[field_out]) { 1996 CeedCallBackend(CeedElemRestrictionDestroy(&elem_rstr)); 1997 continue; 1998 } 1999 CeedCallBackend(CeedVectorPointwiseMult(e_vec, active_e_vec_in, e_vec)); 2000 2001 // Restrict 2002 CeedCallBackend(CeedElemRestrictionApply(elem_rstr, CEED_TRANSPOSE, e_vec, assembled, request)); 2003 CeedCallBackend(CeedElemRestrictionDestroy(&elem_rstr)); 2004 2005 // Reset q_vec for 2006 if (eval_mode == CEED_EVAL_NONE) { 2007 CeedScalar *e_vec_array; 2008 2009 CeedCallBackend(CeedVectorGetArrayWrite(e_vec, CEED_MEM_DEVICE, &e_vec_array)); 2010 CeedCallBackend(CeedVectorSetArray(q_vec, CEED_MEM_DEVICE, CEED_USE_POINTER, e_vec_array)); 2011 } 2012 } 2013 2014 // Reset vec 2015 if (s == e_vec_size - 1 && i != num_input_fields - 1) CeedCallBackend(CeedVectorSetValue(q_vec, 0.0)); 2016 } 2017 } 2018 2019 // Restore CEED_EVAL_NONE 2020 for (CeedInt i = 0; i < num_output_fields; i++) { 2021 CeedEvalMode eval_mode; 2022 2023 // Get eval_mode 2024 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_output_fields[i], &eval_mode)); 2025 2026 // Restore evec 2027 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_output_fields[i], &eval_mode)); 2028 if (eval_mode == CEED_EVAL_NONE) { 2029 CeedScalar *e_vec_array; 2030 2031 CeedCallBackend(CeedVectorTakeArray(impl->q_vecs_in[i], CEED_MEM_DEVICE, &e_vec_array)); 2032 CeedCallBackend(CeedVectorRestoreArray(impl->e_vecs_in[i], &e_vec_array)); 2033 } 2034 } 2035 2036 // Restore input arrays 2037 for (CeedInt i = 0; i < num_input_fields; i++) { 2038 CeedCallBackend(CeedOperatorInputRestore_Cuda(op_input_fields[i], qf_input_fields[i], i, NULL, NULL, true, impl)); 2039 } 2040 2041 // Restore work vector 2042 CeedCallBackend(CeedRestoreWorkVector(ceed, &active_e_vec_in)); 2043 CeedCallBackend(CeedRestoreWorkVector(ceed, &active_e_vec_out)); 2044 CeedCallBackend(CeedDestroy(&ceed)); 2045 CeedCallBackend(CeedQFunctionDestroy(&qf)); 2046 return CEED_ERROR_SUCCESS; 2047 } 2048 2049 //------------------------------------------------------------------------------ 2050 // Create operator 2051 //------------------------------------------------------------------------------ 2052 int CeedOperatorCreate_Cuda(CeedOperator op) { 2053 Ceed ceed; 2054 CeedOperator_Cuda *impl; 2055 2056 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 2057 CeedCallBackend(CeedCalloc(1, &impl)); 2058 CeedCallBackend(CeedOperatorSetData(op, impl)); 2059 2060 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "LinearAssembleQFunction", CeedOperatorLinearAssembleQFunction_Cuda)); 2061 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "LinearAssembleQFunctionUpdate", CeedOperatorLinearAssembleQFunctionUpdate_Cuda)); 2062 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "LinearAssembleAddDiagonal", CeedOperatorLinearAssembleAddDiagonal_Cuda)); 2063 CeedCallBackend( 2064 CeedSetBackendFunction(ceed, "Operator", op, "LinearAssembleAddPointBlockDiagonal", CeedOperatorLinearAssembleAddPointBlockDiagonal_Cuda)); 2065 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "LinearAssembleSingle", CeedSingleOperatorAssemble_Cuda)); 2066 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "ApplyAdd", CeedOperatorApplyAdd_Cuda)); 2067 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "Destroy", CeedOperatorDestroy_Cuda)); 2068 CeedCallBackend(CeedDestroy(&ceed)); 2069 return CEED_ERROR_SUCCESS; 2070 } 2071 2072 //------------------------------------------------------------------------------ 2073 // Create operator AtPoints 2074 //------------------------------------------------------------------------------ 2075 int CeedOperatorCreateAtPoints_Cuda(CeedOperator op) { 2076 Ceed ceed; 2077 CeedOperator_Cuda *impl; 2078 2079 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 2080 CeedCallBackend(CeedCalloc(1, &impl)); 2081 CeedCallBackend(CeedOperatorSetData(op, impl)); 2082 2083 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "LinearAssembleQFunction", CeedOperatorLinearAssembleQFunctionAtPoints_Cuda)); 2084 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "LinearAssembleAddDiagonal", CeedOperatorLinearAssembleAddDiagonalAtPoints_Cuda)); 2085 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "ApplyAdd", CeedOperatorApplyAddAtPoints_Cuda)); 2086 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "Destroy", CeedOperatorDestroy_Cuda)); 2087 CeedCallBackend(CeedDestroy(&ceed)); 2088 return CEED_ERROR_SUCCESS; 2089 } 2090 2091 //------------------------------------------------------------------------------ 2092