1 // Copyright (c) 2017-2022, Lawrence Livermore National Security, LLC and other CEED contributors. 2 // All Rights Reserved. See the top-level LICENSE and NOTICE files for details. 3 // 4 // SPDX-License-Identifier: BSD-2-Clause 5 // 6 // This file is part of CEED: http://github.com/ceed 7 8 #include <ceed.h> 9 #include <ceed/backend.h> 10 #include <stdbool.h> 11 #include <stddef.h> 12 #include <stdint.h> 13 14 #include "ceed-ref.h" 15 16 //------------------------------------------------------------------------------ 17 // Setup Input/Output Fields 18 //------------------------------------------------------------------------------ 19 static int CeedOperatorSetupFields_Ref(CeedQFunction qf, CeedOperator op, bool is_input, CeedVector *e_vecs_full, CeedVector *e_vecs, 20 CeedVector *q_vecs, CeedInt start_e, CeedInt num_fields, CeedInt Q) { 21 CeedInt num_comp, size, P; 22 CeedSize e_size, q_size; 23 Ceed ceed; 24 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 25 CeedBasis basis; 26 CeedElemRestriction elem_restr; 27 CeedOperatorField *op_fields; 28 CeedQFunctionField *qf_fields; 29 if (is_input) { 30 CeedCallBackend(CeedOperatorGetFields(op, NULL, &op_fields, NULL, NULL)); 31 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_fields, NULL, NULL)); 32 } else { 33 CeedCallBackend(CeedOperatorGetFields(op, NULL, NULL, NULL, &op_fields)); 34 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, NULL, NULL, &qf_fields)); 35 } 36 37 // Loop over fields 38 for (CeedInt i = 0; i < num_fields; i++) { 39 CeedEvalMode eval_mode; 40 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_fields[i], &eval_mode)); 41 42 if (eval_mode != CEED_EVAL_WEIGHT) { 43 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_fields[i], &elem_restr)); 44 CeedCallBackend(CeedElemRestrictionCreateVector(elem_restr, NULL, &e_vecs_full[i + start_e])); 45 } 46 47 switch (eval_mode) { 48 case CEED_EVAL_NONE: 49 CeedCallBackend(CeedQFunctionFieldGetSize(qf_fields[i], &size)); 50 q_size = (CeedSize)Q * size; 51 CeedCallBackend(CeedVectorCreate(ceed, q_size, &q_vecs[i])); 52 break; 53 case CEED_EVAL_INTERP: 54 case CEED_EVAL_GRAD: 55 case CEED_EVAL_DIV: 56 case CEED_EVAL_CURL: 57 CeedCallBackend(CeedOperatorFieldGetBasis(op_fields[i], &basis)); 58 CeedCallBackend(CeedQFunctionFieldGetSize(qf_fields[i], &size)); 59 CeedCallBackend(CeedBasisGetNumNodes(basis, &P)); 60 CeedCallBackend(CeedBasisGetNumComponents(basis, &num_comp)); 61 e_size = (CeedSize)P * num_comp; 62 CeedCallBackend(CeedVectorCreate(ceed, e_size, &e_vecs[i])); 63 q_size = (CeedSize)Q * size; 64 CeedCallBackend(CeedVectorCreate(ceed, q_size, &q_vecs[i])); 65 break; 66 case CEED_EVAL_WEIGHT: // Only on input fields 67 CeedCallBackend(CeedOperatorFieldGetBasis(op_fields[i], &basis)); 68 q_size = (CeedSize)Q; 69 CeedCallBackend(CeedVectorCreate(ceed, q_size, &q_vecs[i])); 70 CeedCallBackend(CeedBasisApply(basis, 1, CEED_NOTRANSPOSE, CEED_EVAL_WEIGHT, CEED_VECTOR_NONE, q_vecs[i])); 71 break; 72 } 73 } 74 return CEED_ERROR_SUCCESS; 75 } 76 77 //------------------------------------------------------------------------------ 78 // Setup Operator 79 //------------------------------------------------------------------------------/* 80 static int CeedOperatorSetup_Ref(CeedOperator op) { 81 bool is_setup_done; 82 CeedCallBackend(CeedOperatorIsSetupDone(op, &is_setup_done)); 83 if (is_setup_done) return CEED_ERROR_SUCCESS; 84 Ceed ceed; 85 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 86 CeedOperator_Ref *impl; 87 CeedCallBackend(CeedOperatorGetData(op, &impl)); 88 CeedQFunction qf; 89 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 90 CeedInt Q, num_input_fields, num_output_fields; 91 CeedCallBackend(CeedOperatorGetNumQuadraturePoints(op, &Q)); 92 CeedCallBackend(CeedQFunctionIsIdentity(qf, &impl->is_identity_qf)); 93 CeedOperatorField *op_input_fields, *op_output_fields; 94 CeedCallBackend(CeedOperatorGetFields(op, &num_input_fields, &op_input_fields, &num_output_fields, &op_output_fields)); 95 CeedQFunctionField *qf_input_fields, *qf_output_fields; 96 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_input_fields, NULL, &qf_output_fields)); 97 98 // Allocate 99 CeedCallBackend(CeedCalloc(num_input_fields + num_output_fields, &impl->e_vecs_full)); 100 101 CeedCallBackend(CeedCalloc(CEED_FIELD_MAX, &impl->input_states)); 102 CeedCallBackend(CeedCalloc(CEED_FIELD_MAX, &impl->e_vecs_in)); 103 CeedCallBackend(CeedCalloc(CEED_FIELD_MAX, &impl->e_vecs_out)); 104 CeedCallBackend(CeedCalloc(CEED_FIELD_MAX, &impl->q_vecs_in)); 105 CeedCallBackend(CeedCalloc(CEED_FIELD_MAX, &impl->q_vecs_out)); 106 107 impl->num_inputs = num_input_fields; 108 impl->num_outputs = num_output_fields; 109 110 // Set up infield and outfield e_vecs and q_vecs 111 // Infields 112 CeedCallBackend(CeedOperatorSetupFields_Ref(qf, op, true, impl->e_vecs_full, impl->e_vecs_in, impl->q_vecs_in, 0, num_input_fields, Q)); 113 // Outfields 114 CeedCallBackend( 115 CeedOperatorSetupFields_Ref(qf, op, false, impl->e_vecs_full, impl->e_vecs_out, impl->q_vecs_out, num_input_fields, num_output_fields, Q)); 116 117 // Identity QFunctions 118 if (impl->is_identity_qf) { 119 CeedEvalMode in_mode, out_mode; 120 CeedQFunctionField *in_fields, *out_fields; 121 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &in_fields, NULL, &out_fields)); 122 CeedCallBackend(CeedQFunctionFieldGetEvalMode(in_fields[0], &in_mode)); 123 CeedCallBackend(CeedQFunctionFieldGetEvalMode(out_fields[0], &out_mode)); 124 125 if (in_mode == CEED_EVAL_NONE && out_mode == CEED_EVAL_NONE) { 126 impl->is_identity_restr_op = true; 127 } else { 128 CeedCallBackend(CeedVectorReferenceCopy(impl->q_vecs_in[0], &impl->q_vecs_out[0])); 129 } 130 } 131 132 CeedCallBackend(CeedOperatorSetSetupDone(op)); 133 134 return CEED_ERROR_SUCCESS; 135 } 136 137 //------------------------------------------------------------------------------ 138 // Setup Operator Inputs 139 //------------------------------------------------------------------------------ 140 static inline int CeedOperatorSetupInputs_Ref(CeedInt num_input_fields, CeedQFunctionField *qf_input_fields, CeedOperatorField *op_input_fields, 141 CeedVector in_vec, const bool skip_active, CeedScalar *e_data_full[2 * CEED_FIELD_MAX], 142 CeedOperator_Ref *impl, CeedRequest *request) { 143 CeedEvalMode eval_mode; 144 CeedVector vec; 145 CeedElemRestriction elem_restr; 146 uint64_t state; 147 148 for (CeedInt i = 0; i < num_input_fields; i++) { 149 // Get input vector 150 CeedCallBackend(CeedOperatorFieldGetVector(op_input_fields[i], &vec)); 151 if (vec == CEED_VECTOR_ACTIVE) { 152 if (skip_active) continue; 153 else vec = in_vec; 154 } 155 156 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_input_fields[i], &eval_mode)); 157 // Restrict and Evec 158 if (eval_mode == CEED_EVAL_WEIGHT) { // Skip 159 } else { 160 // Restrict 161 CeedCallBackend(CeedVectorGetState(vec, &state)); 162 // Skip restriction if input is unchanged 163 if (state != impl->input_states[i] || vec == in_vec) { 164 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_input_fields[i], &elem_restr)); 165 CeedCallBackend(CeedElemRestrictionApply(elem_restr, CEED_NOTRANSPOSE, vec, impl->e_vecs_full[i], request)); 166 impl->input_states[i] = state; 167 } 168 // Get evec 169 CeedCallBackend(CeedVectorGetArrayRead(impl->e_vecs_full[i], CEED_MEM_HOST, (const CeedScalar **)&e_data_full[i])); 170 } 171 } 172 return CEED_ERROR_SUCCESS; 173 } 174 175 //------------------------------------------------------------------------------ 176 // Input Basis Action 177 //------------------------------------------------------------------------------ 178 static inline int CeedOperatorInputBasis_Ref(CeedInt e, CeedInt Q, CeedQFunctionField *qf_input_fields, CeedOperatorField *op_input_fields, 179 CeedInt num_input_fields, const bool skip_active, CeedScalar *e_data_full[2 * CEED_FIELD_MAX], 180 CeedOperator_Ref *impl) { 181 CeedInt elem_size, size, num_comp; 182 CeedElemRestriction elem_restr; 183 CeedEvalMode eval_mode; 184 CeedBasis basis; 185 186 for (CeedInt i = 0; i < num_input_fields; i++) { 187 // Skip active input 188 if (skip_active) { 189 CeedVector vec; 190 CeedCallBackend(CeedOperatorFieldGetVector(op_input_fields[i], &vec)); 191 if (vec == CEED_VECTOR_ACTIVE) continue; 192 } 193 // Get elem_size, eval_mode, size 194 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_input_fields[i], &elem_restr)); 195 CeedCallBackend(CeedElemRestrictionGetElementSize(elem_restr, &elem_size)); 196 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_input_fields[i], &eval_mode)); 197 CeedCallBackend(CeedQFunctionFieldGetSize(qf_input_fields[i], &size)); 198 // Basis action 199 switch (eval_mode) { 200 case CEED_EVAL_NONE: 201 CeedCallBackend(CeedVectorSetArray(impl->q_vecs_in[i], CEED_MEM_HOST, CEED_USE_POINTER, &e_data_full[i][e * Q * size])); 202 break; 203 case CEED_EVAL_INTERP: 204 case CEED_EVAL_GRAD: 205 case CEED_EVAL_DIV: 206 case CEED_EVAL_CURL: 207 CeedCallBackend(CeedOperatorFieldGetBasis(op_input_fields[i], &basis)); 208 CeedCallBackend(CeedBasisGetNumComponents(basis, &num_comp)); 209 CeedCallBackend(CeedVectorSetArray(impl->e_vecs_in[i], CEED_MEM_HOST, CEED_USE_POINTER, &e_data_full[i][e * elem_size * num_comp])); 210 CeedCallBackend(CeedBasisApply(basis, 1, CEED_NOTRANSPOSE, eval_mode, impl->e_vecs_in[i], impl->q_vecs_in[i])); 211 break; 212 case CEED_EVAL_WEIGHT: 213 break; // No action 214 } 215 } 216 return CEED_ERROR_SUCCESS; 217 } 218 219 //------------------------------------------------------------------------------ 220 // Output Basis Action 221 //------------------------------------------------------------------------------ 222 static inline int CeedOperatorOutputBasis_Ref(CeedInt e, CeedInt Q, CeedQFunctionField *qf_output_fields, CeedOperatorField *op_output_fields, 223 CeedInt num_input_fields, CeedInt num_output_fields, CeedOperator op, 224 CeedScalar *e_data_full[2 * CEED_FIELD_MAX], CeedOperator_Ref *impl) { 225 CeedInt elem_size, num_comp; 226 CeedElemRestriction elem_restr; 227 CeedEvalMode eval_mode; 228 CeedBasis basis; 229 230 for (CeedInt i = 0; i < num_output_fields; i++) { 231 // Get elem_size, eval_mode 232 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_output_fields[i], &elem_restr)); 233 CeedCallBackend(CeedElemRestrictionGetElementSize(elem_restr, &elem_size)); 234 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_output_fields[i], &eval_mode)); 235 // Basis action 236 switch (eval_mode) { 237 case CEED_EVAL_NONE: 238 break; // No action 239 case CEED_EVAL_INTERP: 240 case CEED_EVAL_GRAD: 241 case CEED_EVAL_DIV: 242 case CEED_EVAL_CURL: 243 CeedCallBackend(CeedOperatorFieldGetBasis(op_output_fields[i], &basis)); 244 CeedCallBackend(CeedBasisGetNumComponents(basis, &num_comp)); 245 CeedCallBackend( 246 CeedVectorSetArray(impl->e_vecs_out[i], CEED_MEM_HOST, CEED_USE_POINTER, &e_data_full[i + num_input_fields][e * elem_size * num_comp])); 247 CeedCallBackend(CeedBasisApply(basis, 1, CEED_TRANSPOSE, eval_mode, impl->q_vecs_out[i], impl->e_vecs_out[i])); 248 break; 249 // LCOV_EXCL_START 250 case CEED_EVAL_WEIGHT: { 251 Ceed ceed; 252 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 253 return CeedError(ceed, CEED_ERROR_BACKEND, "CEED_EVAL_WEIGHT cannot be an output evaluation mode"); 254 // LCOV_EXCL_STOP 255 } 256 } 257 } 258 return CEED_ERROR_SUCCESS; 259 } 260 261 //------------------------------------------------------------------------------ 262 // Restore Input Vectors 263 //------------------------------------------------------------------------------ 264 static inline int CeedOperatorRestoreInputs_Ref(CeedInt num_input_fields, CeedQFunctionField *qf_input_fields, CeedOperatorField *op_input_fields, 265 const bool skip_active, CeedScalar *e_data_full[2 * CEED_FIELD_MAX], CeedOperator_Ref *impl) { 266 CeedEvalMode eval_mode; 267 268 for (CeedInt i = 0; i < num_input_fields; i++) { 269 // Skip active inputs 270 if (skip_active) { 271 CeedVector vec; 272 CeedCallBackend(CeedOperatorFieldGetVector(op_input_fields[i], &vec)); 273 if (vec == CEED_VECTOR_ACTIVE) continue; 274 } 275 // Restore input 276 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_input_fields[i], &eval_mode)); 277 if (eval_mode == CEED_EVAL_WEIGHT) { // Skip 278 } else { 279 CeedCallBackend(CeedVectorRestoreArrayRead(impl->e_vecs_full[i], (const CeedScalar **)&e_data_full[i])); 280 } 281 } 282 return CEED_ERROR_SUCCESS; 283 } 284 285 //------------------------------------------------------------------------------ 286 // Operator Apply 287 //------------------------------------------------------------------------------ 288 static int CeedOperatorApplyAdd_Ref(CeedOperator op, CeedVector in_vec, CeedVector out_vec, CeedRequest *request) { 289 CeedOperator_Ref *impl; 290 CeedCallBackend(CeedOperatorGetData(op, &impl)); 291 CeedQFunction qf; 292 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 293 CeedInt Q, num_elem, num_input_fields, num_output_fields, size; 294 CeedCallBackend(CeedOperatorGetNumQuadraturePoints(op, &Q)); 295 CeedCallBackend(CeedOperatorGetNumElements(op, &num_elem)); 296 CeedOperatorField *op_input_fields, *op_output_fields; 297 CeedCallBackend(CeedOperatorGetFields(op, &num_input_fields, &op_input_fields, &num_output_fields, &op_output_fields)); 298 CeedQFunctionField *qf_input_fields, *qf_output_fields; 299 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_input_fields, NULL, &qf_output_fields)); 300 CeedEvalMode eval_mode; 301 CeedVector vec; 302 CeedElemRestriction elem_restr; 303 CeedScalar *e_data_full[2 * CEED_FIELD_MAX] = {0}; 304 305 // Setup 306 CeedCallBackend(CeedOperatorSetup_Ref(op)); 307 308 // Restriction only operator 309 if (impl->is_identity_restr_op) { 310 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_input_fields[0], &elem_restr)); 311 CeedCallBackend(CeedElemRestrictionApply(elem_restr, CEED_NOTRANSPOSE, in_vec, impl->e_vecs_full[0], request)); 312 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_output_fields[0], &elem_restr)); 313 CeedCallBackend(CeedElemRestrictionApply(elem_restr, CEED_TRANSPOSE, impl->e_vecs_full[0], out_vec, request)); 314 return CEED_ERROR_SUCCESS; 315 } 316 317 // Input Evecs and Restriction 318 CeedCallBackend(CeedOperatorSetupInputs_Ref(num_input_fields, qf_input_fields, op_input_fields, in_vec, false, e_data_full, impl, request)); 319 320 // Output Evecs 321 for (CeedInt i = 0; i < num_output_fields; i++) { 322 CeedCallBackend(CeedVectorGetArrayWrite(impl->e_vecs_full[i + impl->num_inputs], CEED_MEM_HOST, &e_data_full[i + num_input_fields])); 323 } 324 325 // Loop through elements 326 for (CeedInt e = 0; e < num_elem; e++) { 327 // Output pointers 328 for (CeedInt i = 0; i < num_output_fields; i++) { 329 CeedCallBackend(CeedQFunctionFieldGetEvalMode(qf_output_fields[i], &eval_mode)); 330 if (eval_mode == CEED_EVAL_NONE) { 331 CeedCallBackend(CeedQFunctionFieldGetSize(qf_output_fields[i], &size)); 332 CeedCallBackend(CeedVectorSetArray(impl->q_vecs_out[i], CEED_MEM_HOST, CEED_USE_POINTER, &e_data_full[i + num_input_fields][e * Q * size])); 333 } 334 } 335 336 // Input basis apply 337 CeedCallBackend(CeedOperatorInputBasis_Ref(e, Q, qf_input_fields, op_input_fields, num_input_fields, false, e_data_full, impl)); 338 339 // Q function 340 if (!impl->is_identity_qf) { 341 CeedCallBackend(CeedQFunctionApply(qf, Q, impl->q_vecs_in, impl->q_vecs_out)); 342 } 343 344 // Output basis apply 345 CeedCallBackend( 346 CeedOperatorOutputBasis_Ref(e, Q, qf_output_fields, op_output_fields, num_input_fields, num_output_fields, op, e_data_full, impl)); 347 } 348 349 // Output restriction 350 for (CeedInt i = 0; i < num_output_fields; i++) { 351 // Restore Evec 352 CeedCallBackend(CeedVectorRestoreArray(impl->e_vecs_full[i + impl->num_inputs], &e_data_full[i + num_input_fields])); 353 // Get output vector 354 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[i], &vec)); 355 // Active 356 if (vec == CEED_VECTOR_ACTIVE) vec = out_vec; 357 // Restrict 358 CeedCallBackend(CeedOperatorFieldGetElemRestriction(op_output_fields[i], &elem_restr)); 359 CeedCallBackend(CeedElemRestrictionApply(elem_restr, CEED_TRANSPOSE, impl->e_vecs_full[i + impl->num_inputs], vec, request)); 360 } 361 362 // Restore input arrays 363 CeedCallBackend(CeedOperatorRestoreInputs_Ref(num_input_fields, qf_input_fields, op_input_fields, false, e_data_full, impl)); 364 365 return CEED_ERROR_SUCCESS; 366 } 367 368 //------------------------------------------------------------------------------ 369 // Core code for assembling linear QFunction 370 //------------------------------------------------------------------------------ 371 static inline int CeedOperatorLinearAssembleQFunctionCore_Ref(CeedOperator op, bool build_objects, CeedVector *assembled, CeedElemRestriction *rstr, 372 CeedRequest *request) { 373 CeedOperator_Ref *impl; 374 CeedCallBackend(CeedOperatorGetData(op, &impl)); 375 CeedQFunction qf; 376 CeedCallBackend(CeedOperatorGetQFunction(op, &qf)); 377 CeedInt Q, num_elem, num_input_fields, num_output_fields, size; 378 CeedSize q_size; 379 CeedCallBackend(CeedOperatorGetNumQuadraturePoints(op, &Q)); 380 CeedCallBackend(CeedOperatorGetNumElements(op, &num_elem)); 381 CeedOperatorField *op_input_fields, *op_output_fields; 382 CeedCallBackend(CeedOperatorGetFields(op, &num_input_fields, &op_input_fields, &num_output_fields, &op_output_fields)); 383 CeedQFunctionField *qf_input_fields, *qf_output_fields; 384 CeedCallBackend(CeedQFunctionGetFields(qf, NULL, &qf_input_fields, NULL, &qf_output_fields)); 385 CeedVector vec; 386 CeedInt num_active_in = impl->num_active_in, num_active_out = impl->num_active_out; 387 CeedVector *active_in = impl->qf_active_in; 388 CeedScalar *a, *tmp; 389 Ceed ceed, ceed_parent; 390 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 391 CeedCallBackend(CeedGetOperatorFallbackParentCeed(ceed, &ceed_parent)); 392 ceed_parent = ceed_parent ? ceed_parent : ceed; 393 CeedScalar *e_data_full[2 * CEED_FIELD_MAX] = {0}; 394 395 // Setup 396 CeedCallBackend(CeedOperatorSetup_Ref(op)); 397 398 // Check for identity 399 CeedCheck(!impl->is_identity_qf, ceed, CEED_ERROR_BACKEND, "Assembling identity QFunctions not supported"); 400 401 // Input Evecs and Restriction 402 CeedCallBackend(CeedOperatorSetupInputs_Ref(num_input_fields, qf_input_fields, op_input_fields, NULL, true, e_data_full, impl, request)); 403 404 // Count number of active input fields 405 if (!num_active_in) { 406 for (CeedInt i = 0; i < num_input_fields; i++) { 407 // Get input vector 408 CeedCallBackend(CeedOperatorFieldGetVector(op_input_fields[i], &vec)); 409 // Check if active input 410 if (vec == CEED_VECTOR_ACTIVE) { 411 CeedCallBackend(CeedQFunctionFieldGetSize(qf_input_fields[i], &size)); 412 CeedCallBackend(CeedVectorSetValue(impl->q_vecs_in[i], 0.0)); 413 CeedCallBackend(CeedVectorGetArray(impl->q_vecs_in[i], CEED_MEM_HOST, &tmp)); 414 CeedCallBackend(CeedRealloc(num_active_in + size, &active_in)); 415 for (CeedInt field = 0; field < size; field++) { 416 q_size = (CeedSize)Q; 417 CeedCallBackend(CeedVectorCreate(ceed, q_size, &active_in[num_active_in + field])); 418 CeedCallBackend(CeedVectorSetArray(active_in[num_active_in + field], CEED_MEM_HOST, CEED_USE_POINTER, &tmp[field * Q])); 419 } 420 num_active_in += size; 421 CeedCallBackend(CeedVectorRestoreArray(impl->q_vecs_in[i], &tmp)); 422 } 423 } 424 impl->num_active_in = num_active_in; 425 impl->qf_active_in = active_in; 426 } 427 428 // Count number of active output fields 429 if (!num_active_out) { 430 for (CeedInt i = 0; i < num_output_fields; i++) { 431 // Get output vector 432 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[i], &vec)); 433 // Check if active output 434 if (vec == CEED_VECTOR_ACTIVE) { 435 CeedCallBackend(CeedQFunctionFieldGetSize(qf_output_fields[i], &size)); 436 num_active_out += size; 437 } 438 } 439 impl->num_active_out = num_active_out; 440 } 441 442 // Check sizes 443 CeedCheck(num_active_in > 0 && num_active_out > 0, ceed, CEED_ERROR_BACKEND, "Cannot assemble QFunction without active inputs and outputs"); 444 445 // Build objects if needed 446 if (build_objects) { 447 // Create output restriction 448 CeedInt strides[3] = {1, Q, num_active_in * num_active_out * Q}; /* *NOPAD* */ 449 CeedCallBackend(CeedElemRestrictionCreateStrided(ceed_parent, num_elem, Q, num_active_in * num_active_out, 450 num_active_in * num_active_out * num_elem * Q, strides, rstr)); 451 // Create assembled vector 452 CeedSize l_size = (CeedSize)num_elem * Q * num_active_in * num_active_out; 453 CeedCallBackend(CeedVectorCreate(ceed_parent, l_size, assembled)); 454 } 455 // Clear output vector 456 CeedCallBackend(CeedVectorSetValue(*assembled, 0.0)); 457 CeedCallBackend(CeedVectorGetArray(*assembled, CEED_MEM_HOST, &a)); 458 459 // Loop through elements 460 for (CeedInt e = 0; e < num_elem; e++) { 461 // Input basis apply 462 CeedCallBackend(CeedOperatorInputBasis_Ref(e, Q, qf_input_fields, op_input_fields, num_input_fields, true, e_data_full, impl)); 463 464 // Assemble QFunction 465 for (CeedInt in = 0; in < num_active_in; in++) { 466 // Set Inputs 467 CeedCallBackend(CeedVectorSetValue(active_in[in], 1.0)); 468 if (num_active_in > 1) { 469 CeedCallBackend(CeedVectorSetValue(active_in[(in + num_active_in - 1) % num_active_in], 0.0)); 470 } 471 // Set Outputs 472 for (CeedInt out = 0; out < num_output_fields; out++) { 473 // Get output vector 474 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[out], &vec)); 475 // Check if active output 476 if (vec == CEED_VECTOR_ACTIVE) { 477 CeedCallBackend(CeedVectorSetArray(impl->q_vecs_out[out], CEED_MEM_HOST, CEED_USE_POINTER, a)); 478 CeedCallBackend(CeedQFunctionFieldGetSize(qf_output_fields[out], &size)); 479 a += size * Q; // Advance the pointer by the size of the output 480 } 481 } 482 // Apply QFunction 483 CeedCallBackend(CeedQFunctionApply(qf, Q, impl->q_vecs_in, impl->q_vecs_out)); 484 } 485 } 486 487 // Un-set output Qvecs to prevent accidental overwrite of Assembled 488 for (CeedInt out = 0; out < num_output_fields; out++) { 489 // Get output vector 490 CeedCallBackend(CeedOperatorFieldGetVector(op_output_fields[out], &vec)); 491 // Check if active output 492 if (vec == CEED_VECTOR_ACTIVE && num_elem > 0) { 493 CeedCallBackend(CeedVectorTakeArray(impl->q_vecs_out[out], CEED_MEM_HOST, NULL)); 494 } 495 } 496 497 // Restore input arrays 498 CeedCallBackend(CeedOperatorRestoreInputs_Ref(num_input_fields, qf_input_fields, op_input_fields, true, e_data_full, impl)); 499 500 // Restore output 501 CeedCallBackend(CeedVectorRestoreArray(*assembled, &a)); 502 503 return CEED_ERROR_SUCCESS; 504 } 505 506 //------------------------------------------------------------------------------ 507 // Assemble Linear QFunction 508 //------------------------------------------------------------------------------ 509 static int CeedOperatorLinearAssembleQFunction_Ref(CeedOperator op, CeedVector *assembled, CeedElemRestriction *rstr, CeedRequest *request) { 510 return CeedOperatorLinearAssembleQFunctionCore_Ref(op, true, assembled, rstr, request); 511 } 512 513 //------------------------------------------------------------------------------ 514 // Update Assembled Linear QFunction 515 //------------------------------------------------------------------------------ 516 static int CeedOperatorLinearAssembleQFunctionUpdate_Ref(CeedOperator op, CeedVector assembled, CeedElemRestriction rstr, CeedRequest *request) { 517 return CeedOperatorLinearAssembleQFunctionCore_Ref(op, false, &assembled, &rstr, request); 518 } 519 520 //------------------------------------------------------------------------------ 521 // Operator Destroy 522 //------------------------------------------------------------------------------ 523 static int CeedOperatorDestroy_Ref(CeedOperator op) { 524 CeedOperator_Ref *impl; 525 CeedCallBackend(CeedOperatorGetData(op, &impl)); 526 527 for (CeedInt i = 0; i < impl->num_inputs + impl->num_outputs; i++) { 528 CeedCallBackend(CeedVectorDestroy(&impl->e_vecs_full[i])); 529 } 530 CeedCallBackend(CeedFree(&impl->e_vecs_full)); 531 CeedCallBackend(CeedFree(&impl->input_states)); 532 533 for (CeedInt i = 0; i < impl->num_inputs; i++) { 534 CeedCallBackend(CeedVectorDestroy(&impl->e_vecs_in[i])); 535 CeedCallBackend(CeedVectorDestroy(&impl->q_vecs_in[i])); 536 } 537 CeedCallBackend(CeedFree(&impl->e_vecs_in)); 538 CeedCallBackend(CeedFree(&impl->q_vecs_in)); 539 540 for (CeedInt i = 0; i < impl->num_outputs; i++) { 541 CeedCallBackend(CeedVectorDestroy(&impl->e_vecs_out[i])); 542 CeedCallBackend(CeedVectorDestroy(&impl->q_vecs_out[i])); 543 } 544 CeedCallBackend(CeedFree(&impl->e_vecs_out)); 545 CeedCallBackend(CeedFree(&impl->q_vecs_out)); 546 547 // QFunction assembly 548 for (CeedInt i = 0; i < impl->num_active_in; i++) { 549 CeedCallBackend(CeedVectorDestroy(&impl->qf_active_in[i])); 550 } 551 CeedCallBackend(CeedFree(&impl->qf_active_in)); 552 553 CeedCallBackend(CeedFree(&impl)); 554 return CEED_ERROR_SUCCESS; 555 } 556 557 //------------------------------------------------------------------------------ 558 // Operator Create 559 //------------------------------------------------------------------------------ 560 int CeedOperatorCreate_Ref(CeedOperator op) { 561 Ceed ceed; 562 CeedCallBackend(CeedOperatorGetCeed(op, &ceed)); 563 CeedOperator_Ref *impl; 564 565 CeedCallBackend(CeedCalloc(1, &impl)); 566 CeedCallBackend(CeedOperatorSetData(op, impl)); 567 568 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "LinearAssembleQFunction", CeedOperatorLinearAssembleQFunction_Ref)); 569 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "LinearAssembleQFunctionUpdate", CeedOperatorLinearAssembleQFunctionUpdate_Ref)); 570 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "ApplyAdd", CeedOperatorApplyAdd_Ref)); 571 CeedCallBackend(CeedSetBackendFunction(ceed, "Operator", op, "Destroy", CeedOperatorDestroy_Ref)); 572 return CEED_ERROR_SUCCESS; 573 } 574 575 //------------------------------------------------------------------------------ 576