1 // Copyright (c) 2017-2023, 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 "../qfunctions/sgs_dd_model.h" 9 10 #include <petscdmplex.h> 11 12 #include "../navierstokes.h" 13 14 typedef struct { 15 CeedElemRestriction elem_restr_grid_aniso, elem_restr_sgs; 16 CeedVector grid_aniso_ceed; 17 CeedQFunctionContext sgsdd_qfctx; 18 } *SgsDDModelSetupData; 19 20 PetscErrorCode SgsDDModelSetupDataDestroy(SgsDDModelSetupData sgs_dd_setup_data) { 21 Ceed ceed; 22 PetscFunctionBeginUser; 23 PetscCall(CeedElemRestrictionGetCeed(sgs_dd_setup_data->elem_restr_sgs, &ceed)); 24 PetscCallCeed(ceed, CeedElemRestrictionDestroy(&sgs_dd_setup_data->elem_restr_grid_aniso)); 25 PetscCallCeed(ceed, CeedElemRestrictionDestroy(&sgs_dd_setup_data->elem_restr_sgs)); 26 PetscCallCeed(ceed, CeedVectorDestroy(&sgs_dd_setup_data->grid_aniso_ceed)); 27 PetscCallCeed(ceed, CeedQFunctionContextDestroy(&sgs_dd_setup_data->sgsdd_qfctx)); 28 29 PetscCall(PetscFree(sgs_dd_setup_data)); 30 PetscFunctionReturn(PETSC_SUCCESS); 31 } 32 33 // @brief Create DM for storing subgrid stress at nodes 34 PetscErrorCode SgsDDModelCreateDM(DM dm_source, DM *dm_sgs, PetscInt degree, PetscInt q_extra, PetscInt *num_components) { 35 PetscSection section; 36 37 PetscFunctionBeginUser; 38 *num_components = 6; 39 40 PetscCall(DMClone(dm_source, dm_sgs)); 41 PetscCall(PetscObjectSetName((PetscObject)*dm_sgs, "Subgrid Stress Projection")); 42 43 PetscCall(DMSetupByOrder_FEM(PETSC_TRUE, PETSC_TRUE, degree, 1, q_extra, 1, num_components, *dm_sgs)); 44 45 PetscCall(DMGetLocalSection(*dm_sgs, §ion)); 46 PetscCall(PetscSectionSetFieldName(section, 0, "")); 47 PetscCall(PetscSectionSetComponentName(section, 0, 0, "KMSubgridStressXX")); 48 PetscCall(PetscSectionSetComponentName(section, 0, 1, "KMSubgridStressYY")); 49 PetscCall(PetscSectionSetComponentName(section, 0, 2, "KMSubgridStressZZ")); 50 PetscCall(PetscSectionSetComponentName(section, 0, 3, "KMSubgridStressYZ")); 51 PetscCall(PetscSectionSetComponentName(section, 0, 4, "KMSubgridStressXZ")); 52 PetscCall(PetscSectionSetComponentName(section, 0, 5, "KMSubgridStressXY")); 53 54 PetscFunctionReturn(PETSC_SUCCESS); 55 }; 56 57 // @brief Create CeedOperator to calculate data-drive SGS at nodes 58 PetscErrorCode SgsDDModelSetupNodalEvaluation(Ceed ceed, User user, CeedData ceed_data, SgsDDModelSetupData sgs_dd_setup_data) { 59 SgsDDData sgs_dd_data = user->sgs_dd_data; 60 CeedQFunction qf_multiplicity, qf_sgs_dd_nodal; 61 CeedOperator op_multiplicity, op_sgs_dd_nodal; 62 CeedInt num_elem, elem_size, num_comp_q, num_comp_grad_velo, num_comp_x, num_comp_grid_aniso; 63 PetscInt dim; 64 CeedVector multiplicity, inv_multiplicity; 65 CeedElemRestriction elem_restr_inv_multiplicity, elem_restr_grad_velo, elem_restr_sgs; 66 67 PetscFunctionBeginUser; 68 PetscCall(DMGetDimension(user->dm, &dim)); 69 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_x, &num_comp_x)); 70 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_q, &num_comp_q)); 71 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(sgs_dd_setup_data->elem_restr_grid_aniso, &num_comp_grid_aniso)); 72 PetscCallCeed(ceed, CeedElemRestrictionGetNumElements(ceed_data->elem_restr_q, &num_elem)); 73 PetscCallCeed(ceed, CeedElemRestrictionGetElementSize(ceed_data->elem_restr_q, &elem_size)); 74 75 { // Get velocity gradient information 76 CeedOperatorField op_field; 77 PetscCallCeed(ceed, CeedOperatorGetFieldByName(user->grad_velo_proj->l2_rhs_ctx->op, "velocity gradient", &op_field)); 78 PetscCallCeed(ceed, CeedOperatorFieldGetElemRestriction(op_field, &elem_restr_grad_velo)); 79 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(elem_restr_grad_velo, &num_comp_grad_velo)); 80 } 81 PetscCall(GetRestrictionForDomain(ceed, sgs_dd_data->dm_sgs, 0, 0, 0, 0, -1, 0, &elem_restr_sgs, NULL, NULL)); 82 PetscCallCeed(ceed, CeedElemRestrictionCreateVector(elem_restr_sgs, &sgs_dd_data->sgs_nodal_ceed, NULL)); 83 84 // -- Create inverse multiplicity for correcting nodal assembly 85 PetscCallCeed(ceed, CeedElemRestrictionCreateVector(ceed_data->elem_restr_q, &multiplicity, NULL)); 86 PetscCallCeed(ceed, CeedElemRestrictionGetMultiplicity(ceed_data->elem_restr_q, multiplicity)); 87 PetscCallCeed( 88 ceed, CeedElemRestrictionCreateStrided(ceed, num_elem, elem_size, 1, num_elem * elem_size, CEED_STRIDES_BACKEND, &elem_restr_inv_multiplicity)); 89 PetscCallCeed(ceed, CeedElemRestrictionCreateVector(elem_restr_inv_multiplicity, &inv_multiplicity, NULL)); 90 91 PetscCallCeed(ceed, CeedQFunctionCreateInterior(ceed, 1, InverseMultiplicity, InverseMultiplicity_loc, &qf_multiplicity)); 92 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_multiplicity, "multiplicity", num_comp_q, CEED_EVAL_NONE)); 93 PetscCallCeed(ceed, CeedQFunctionAddOutput(qf_multiplicity, "inverse multiplicity", 1, CEED_EVAL_NONE)); 94 95 PetscCallCeed(ceed, CeedOperatorCreate(ceed, qf_multiplicity, NULL, NULL, &op_multiplicity)); 96 PetscCallCeed(ceed, CeedOperatorSetName(op_multiplicity, "SGS DD Model - Create Multiplicity Scaling")); 97 PetscCallCeed(ceed, CeedOperatorSetField(op_multiplicity, "multiplicity", ceed_data->elem_restr_q, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE)); 98 PetscCallCeed( 99 ceed, CeedOperatorSetField(op_multiplicity, "inverse multiplicity", elem_restr_inv_multiplicity, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE)); 100 101 PetscCallCeed(ceed, CeedOperatorApply(op_multiplicity, multiplicity, inv_multiplicity, CEED_REQUEST_IMMEDIATE)); 102 103 // -- Create operator for SGS DD model nodal evaluation 104 switch (user->phys->state_var) { 105 case STATEVAR_PRIMITIVE: 106 PetscCallCeed(ceed, 107 CeedQFunctionCreateInterior(ceed, 1, ComputeSgsDDAnisotropicNodal_Prim, ComputeSgsDDAnisotropicNodal_Prim_loc, &qf_sgs_dd_nodal)); 108 break; 109 case STATEVAR_CONSERVATIVE: 110 PetscCallCeed(ceed, CeedQFunctionCreateInterior(ceed, 1, ComputeSgsDDAnisotropicNodal_Conserv, ComputeSgsDDAnisotropicNodal_Conserv_loc, 111 &qf_sgs_dd_nodal)); 112 break; 113 default: 114 SETERRQ(PetscObjectComm((PetscObject)user->dm), PETSC_ERR_SUP, 115 "Anisotropic data-driven SGS nodal evaluation not available for chosen state variable"); 116 } 117 118 // Mesh/geometry order and solution basis order may differ, therefore must interpolate 119 CeedBasis basis_x_to_q; 120 PetscCallCeed(ceed, CeedBasisCreateProjection(ceed_data->basis_x, ceed_data->basis_q, &basis_x_to_q)); 121 122 PetscCallCeed(ceed, CeedQFunctionSetContext(qf_sgs_dd_nodal, sgs_dd_setup_data->sgsdd_qfctx)); 123 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_dd_nodal, "q", num_comp_q, CEED_EVAL_NONE)); 124 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_dd_nodal, "x", num_comp_x, CEED_EVAL_INTERP)); 125 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_dd_nodal, "gradient velocity", num_comp_grad_velo, CEED_EVAL_NONE)); 126 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_dd_nodal, "anisotropy tensor", num_comp_grid_aniso, CEED_EVAL_NONE)); 127 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_dd_nodal, "inverse multiplicity", 1, CEED_EVAL_NONE)); 128 PetscCallCeed(ceed, CeedQFunctionAddOutput(qf_sgs_dd_nodal, "km_sgs", sgs_dd_data->num_comp_sgs, CEED_EVAL_NONE)); 129 130 PetscCallCeed(ceed, CeedOperatorCreate(ceed, qf_sgs_dd_nodal, NULL, NULL, &op_sgs_dd_nodal)); 131 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_dd_nodal, "q", ceed_data->elem_restr_q, CEED_BASIS_COLLOCATED, user->q_ceed)); 132 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_dd_nodal, "x", ceed_data->elem_restr_x, basis_x_to_q, ceed_data->x_coord)); 133 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_dd_nodal, "gradient velocity", elem_restr_grad_velo, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE)); 134 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_dd_nodal, "anisotropy tensor", sgs_dd_setup_data->elem_restr_grid_aniso, CEED_BASIS_COLLOCATED, 135 sgs_dd_setup_data->grid_aniso_ceed)); 136 PetscCallCeed(ceed, 137 CeedOperatorSetField(op_sgs_dd_nodal, "inverse multiplicity", elem_restr_inv_multiplicity, CEED_BASIS_COLLOCATED, inv_multiplicity)); 138 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_dd_nodal, "km_sgs", elem_restr_sgs, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE)); 139 140 PetscCall(OperatorApplyContextCreate(user->grad_velo_proj->dm, sgs_dd_data->dm_sgs, ceed, op_sgs_dd_nodal, NULL, sgs_dd_data->sgs_nodal_ceed, NULL, 141 NULL, &sgs_dd_data->op_nodal_evaluation_ctx)); 142 143 sgs_dd_setup_data->elem_restr_sgs = elem_restr_sgs; 144 145 PetscCallCeed(ceed, CeedVectorDestroy(&multiplicity)); 146 PetscCallCeed(ceed, CeedVectorDestroy(&inv_multiplicity)); 147 PetscCallCeed(ceed, CeedBasisDestroy(&basis_x_to_q)); 148 PetscCallCeed(ceed, CeedElemRestrictionDestroy(&elem_restr_inv_multiplicity)); 149 PetscCallCeed(ceed, CeedQFunctionDestroy(&qf_multiplicity)); 150 PetscCallCeed(ceed, CeedQFunctionDestroy(&qf_sgs_dd_nodal)); 151 PetscCallCeed(ceed, CeedOperatorDestroy(&op_multiplicity)); 152 PetscCallCeed(ceed, CeedOperatorDestroy(&op_sgs_dd_nodal)); 153 PetscFunctionReturn(PETSC_SUCCESS); 154 } 155 156 // @brief Create CeedOperator to compute SGS contribution to the residual 157 PetscErrorCode SgsModelSetupNodalIFunction(Ceed ceed, User user, CeedData ceed_data, SgsDDModelSetupData sgs_dd_setup_data) { 158 SgsDDData sgs_dd_data = user->sgs_dd_data; 159 CeedInt num_comp_q, num_comp_qd, num_comp_x; 160 PetscInt dim; 161 CeedQFunction qf_sgs_apply; 162 CeedOperator op_sgs_apply; 163 CeedBasis basis_sgs; 164 165 PetscFunctionBeginUser; 166 PetscCall(DMGetDimension(user->dm, &dim)); 167 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_q, &num_comp_q)); 168 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_qd_i, &num_comp_qd)); 169 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_x, &num_comp_x)); 170 171 PetscCall(CreateBasisFromPlex(ceed, sgs_dd_data->dm_sgs, 0, 0, 0, 0, &basis_sgs)); 172 173 switch (user->phys->state_var) { 174 case STATEVAR_PRIMITIVE: 175 PetscCallCeed(ceed, CeedQFunctionCreateInterior(ceed, 1, IFunction_NodalSgs_Prim, IFunction_NodalSgs_Prim_loc, &qf_sgs_apply)); 176 break; 177 case STATEVAR_CONSERVATIVE: 178 PetscCallCeed(ceed, CeedQFunctionCreateInterior(ceed, 1, IFunction_NodalSgs_Conserv, IFunction_NodalSgs_Conserv_loc, &qf_sgs_apply)); 179 break; 180 default: 181 SETERRQ(PetscObjectComm((PetscObject)user->dm), PETSC_ERR_SUP, "Nodal SGS evaluation not available for chosen state variable"); 182 } 183 184 PetscCallCeed(ceed, CeedQFunctionSetContext(qf_sgs_apply, sgs_dd_setup_data->sgsdd_qfctx)); 185 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_apply, "q", num_comp_q, CEED_EVAL_INTERP)); 186 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_apply, "qdata", num_comp_qd, CEED_EVAL_NONE)); 187 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_apply, "x", num_comp_x, CEED_EVAL_INTERP)); 188 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_apply, "km_sgs", sgs_dd_data->num_comp_sgs, CEED_EVAL_INTERP)); 189 PetscCallCeed(ceed, CeedQFunctionAddOutput(qf_sgs_apply, "Grad_v", num_comp_q * dim, CEED_EVAL_GRAD)); 190 191 PetscCallCeed(ceed, CeedOperatorCreate(ceed, qf_sgs_apply, NULL, NULL, &op_sgs_apply)); 192 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_apply, "q", ceed_data->elem_restr_q, ceed_data->basis_q, CEED_VECTOR_ACTIVE)); 193 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_apply, "qdata", ceed_data->elem_restr_qd_i, CEED_BASIS_COLLOCATED, ceed_data->q_data)); 194 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_apply, "x", ceed_data->elem_restr_x, ceed_data->basis_x, ceed_data->x_coord)); 195 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_apply, "km_sgs", sgs_dd_setup_data->elem_restr_sgs, basis_sgs, sgs_dd_data->sgs_nodal_ceed)); 196 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_apply, "Grad_v", ceed_data->elem_restr_q, ceed_data->basis_q, CEED_VECTOR_ACTIVE)); 197 198 PetscCall( 199 OperatorApplyContextCreate(user->dm, user->dm, ceed, op_sgs_apply, user->q_ceed, user->g_ceed, NULL, NULL, &sgs_dd_data->op_sgs_apply_ctx)); 200 201 PetscCallCeed(ceed, CeedOperatorDestroy(&op_sgs_apply)); 202 PetscCallCeed(ceed, CeedQFunctionDestroy(&qf_sgs_apply)); 203 PetscFunctionReturn(PETSC_SUCCESS); 204 } 205 206 // @brief Calculate and add data-driven SGS residual to the global residual 207 PetscErrorCode SgsDDModelApplyIFunction(User user, const Vec Q_loc, Vec G_loc) { 208 SgsDDData sgs_dd_data = user->sgs_dd_data; 209 Vec VelocityGradient, SGSNodal_loc; 210 PetscMemType sgs_nodal_mem_type, q_mem_type; 211 212 PetscFunctionBeginUser; 213 PetscCall(DMGetGlobalVector(user->grad_velo_proj->dm, &VelocityGradient)); 214 PetscCall(VelocityGradientProjectionApply(user, Q_loc, VelocityGradient)); 215 216 // -- Compute Nodal SGS tensor 217 PetscCall(DMGetLocalVector(sgs_dd_data->dm_sgs, &SGSNodal_loc)); 218 PetscCall(VecP2C(Q_loc, &q_mem_type, user->q_ceed)); // q_ceed is an implicit input 219 220 PetscCall(ApplyCeedOperatorGlobalToLocal(VelocityGradient, SGSNodal_loc, sgs_dd_data->op_nodal_evaluation_ctx)); 221 222 PetscCall(VecC2P(user->q_ceed, q_mem_type, Q_loc)); 223 PetscCall(VecP2C(SGSNodal_loc, &sgs_nodal_mem_type, sgs_dd_data->sgs_nodal_ceed)); // sgs_nodal_ceed is an implicit input 224 225 // -- Compute contribution of the SGS stress 226 PetscCall(ApplyAddCeedOperatorLocalToLocal(Q_loc, G_loc, sgs_dd_data->op_sgs_apply_ctx)); 227 228 // -- Return local SGS vector 229 PetscCall(VecC2P(sgs_dd_data->sgs_nodal_ceed, sgs_nodal_mem_type, SGSNodal_loc)); 230 PetscCall(DMRestoreLocalVector(sgs_dd_data->dm_sgs, &SGSNodal_loc)); 231 PetscCall(DMRestoreGlobalVector(user->grad_velo_proj->dm, &VelocityGradient)); 232 233 PetscFunctionReturn(PETSC_SUCCESS); 234 } 235 236 // @brief B = A^T, A is NxM, B is MxN 237 PetscErrorCode TransposeMatrix(const PetscScalar *A, PetscScalar *B, const PetscInt N, const PetscInt M) { 238 PetscFunctionBeginUser; 239 for (PetscInt i = 0; i < N; i++) { 240 for (PetscInt j = 0; j < M; j++) { 241 B[j * N + i] = A[i * M + j]; 242 } 243 } 244 PetscFunctionReturn(PETSC_SUCCESS); 245 } 246 247 // @brief Read neural network coefficients from file and put into context struct 248 PetscErrorCode SgsDDModelContextFill(MPI_Comm comm, char data_dir[PETSC_MAX_PATH_LEN], SgsDDModelContext *psgsdd_ctx) { 249 SgsDDModelContext sgsdd_ctx; 250 PetscInt num_inputs = (*psgsdd_ctx)->num_inputs, num_outputs = (*psgsdd_ctx)->num_outputs, num_neurons = (*psgsdd_ctx)->num_neurons; 251 char file_path[PETSC_MAX_PATH_LEN]; 252 PetscScalar *temp; 253 254 PetscFunctionBeginUser; 255 { 256 SgsDDModelContext sgsdd_temp; 257 PetscCall(PetscNew(&sgsdd_temp)); 258 *sgsdd_temp = **psgsdd_ctx; 259 sgsdd_temp->offsets.bias1 = 0; 260 sgsdd_temp->offsets.bias2 = sgsdd_temp->offsets.bias1 + num_neurons; 261 sgsdd_temp->offsets.weight1 = sgsdd_temp->offsets.bias2 + num_neurons; 262 sgsdd_temp->offsets.weight2 = sgsdd_temp->offsets.weight1 + num_neurons * num_inputs; 263 sgsdd_temp->offsets.out_scaling = sgsdd_temp->offsets.weight2 + num_inputs * num_neurons; 264 PetscInt total_num_scalars = sgsdd_temp->offsets.out_scaling + 2 * num_outputs; 265 sgsdd_temp->total_bytes = sizeof(*sgsdd_ctx) + total_num_scalars * sizeof(sgsdd_ctx->data[0]); 266 PetscCall(PetscMalloc(sgsdd_temp->total_bytes, &sgsdd_ctx)); 267 *sgsdd_ctx = *sgsdd_temp; 268 PetscCall(PetscFree(sgsdd_temp)); 269 } 270 271 PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "b1.dat")); 272 PetscCall(PhastaDatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.bias1])); 273 PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "b2.dat")); 274 PetscCall(PhastaDatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.bias2])); 275 PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "OutScaling.dat")); 276 PetscCall(PhastaDatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.out_scaling])); 277 278 { 279 PetscCall(PetscMalloc1(num_inputs * num_neurons, &temp)); 280 PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "w1.dat")); 281 PetscCall(PhastaDatFileReadToArrayReal(comm, file_path, temp)); 282 PetscCall(TransposeMatrix(temp, &sgsdd_ctx->data[sgsdd_ctx->offsets.weight1], num_inputs, num_neurons)); 283 PetscCall(PetscFree(temp)); 284 } 285 { 286 PetscCall(PetscMalloc1(num_outputs * num_neurons, &temp)); 287 PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "w2.dat")); 288 PetscCall(PhastaDatFileReadToArrayReal(comm, file_path, temp)); 289 PetscCall(TransposeMatrix(temp, &sgsdd_ctx->data[sgsdd_ctx->offsets.weight2], num_neurons, num_outputs)); 290 PetscCall(PetscFree(temp)); 291 } 292 293 PetscCall(PetscFree(*psgsdd_ctx)); 294 *psgsdd_ctx = sgsdd_ctx; 295 PetscFunctionReturn(PETSC_SUCCESS); 296 } 297 298 PetscErrorCode SgsDDModelSetup(Ceed ceed, User user, CeedData ceed_data, ProblemData *problem) { 299 PetscReal alpha = 0; 300 SgsDDModelContext sgsdd_ctx; 301 MPI_Comm comm = user->comm; 302 char sgs_dd_dir[PETSC_MAX_PATH_LEN] = "./dd_sgs_parameters"; 303 SgsDDModelSetupData sgs_dd_setup_data; 304 NewtonianIdealGasContext gas; 305 PetscFunctionBeginUser; 306 307 PetscCall(VelocityGradientProjectionSetup(ceed, user, ceed_data, problem)); 308 309 PetscCall(PetscNew(&sgsdd_ctx)); 310 311 PetscOptionsBegin(comm, NULL, "SGS Data-Driven Model Options", NULL); 312 PetscCall(PetscOptionsReal("-sgs_model_dd_leakyrelu_alpha", "Slope parameter for Leaky ReLU activation function", NULL, alpha, &alpha, NULL)); 313 PetscCall(PetscOptionsString("-sgs_model_dd_parameter_dir", "Path to directory with model parameters (weights, biases, etc.)", NULL, sgs_dd_dir, 314 sgs_dd_dir, sizeof(sgs_dd_dir), NULL)); 315 PetscOptionsEnd(); 316 317 sgsdd_ctx->num_layers = 1; 318 sgsdd_ctx->num_inputs = 6; 319 sgsdd_ctx->num_outputs = 6; 320 sgsdd_ctx->num_neurons = 20; 321 sgsdd_ctx->alpha = alpha; 322 323 PetscCall(SgsDDModelContextFill(comm, sgs_dd_dir, &sgsdd_ctx)); 324 325 // -- Create DM for storing SGS tensor at nodes 326 PetscCall(PetscNew(&user->sgs_dd_data)); 327 PetscCall( 328 SgsDDModelCreateDM(user->dm, &user->sgs_dd_data->dm_sgs, user->app_ctx->degree, user->app_ctx->q_extra, &user->sgs_dd_data->num_comp_sgs)); 329 330 PetscCall(PetscNew(&sgs_dd_setup_data)); 331 332 PetscCallCeed(ceed, CeedQFunctionContextGetDataRead(problem->apply_vol_ifunction.qfunction_context, CEED_MEM_HOST, &gas)); 333 sgsdd_ctx->gas = *gas; 334 PetscCallCeed(ceed, CeedQFunctionContextRestoreDataRead(problem->apply_vol_ifunction.qfunction_context, &gas)); 335 PetscCallCeed(ceed, CeedQFunctionContextCreate(user->ceed, &sgs_dd_setup_data->sgsdd_qfctx)); 336 PetscCallCeed(ceed, 337 CeedQFunctionContextSetData(sgs_dd_setup_data->sgsdd_qfctx, CEED_MEM_HOST, CEED_USE_POINTER, sgsdd_ctx->total_bytes, sgsdd_ctx)); 338 PetscCallCeed(ceed, CeedQFunctionContextSetDataDestroy(sgs_dd_setup_data->sgsdd_qfctx, CEED_MEM_HOST, FreeContextPetsc)); 339 340 // -- Compute and store anisotropy tensor 341 PetscCall(GridAnisotropyTensorProjectionSetupApply(ceed, user, ceed_data, &sgs_dd_setup_data->elem_restr_grid_aniso, 342 &sgs_dd_setup_data->grid_aniso_ceed)); 343 344 // -- Create Nodal Evaluation Operator 345 PetscCall(SgsDDModelSetupNodalEvaluation(ceed, user, ceed_data, sgs_dd_setup_data)); 346 347 // -- Create Operator to evalutate residual of SGS stress 348 PetscCall(SgsModelSetupNodalIFunction(ceed, user, ceed_data, sgs_dd_setup_data)); 349 350 PetscCall(SgsDDModelSetupDataDestroy(sgs_dd_setup_data)); 351 PetscFunctionReturn(PETSC_SUCCESS); 352 } 353 354 PetscErrorCode SgsDDDataDestroy(SgsDDData sgs_dd_data) { 355 PetscFunctionBeginUser; 356 if (!sgs_dd_data) PetscFunctionReturn(PETSC_SUCCESS); 357 Ceed ceed = sgs_dd_data->op_sgs_apply_ctx->ceed; 358 359 PetscCallCeed(ceed, CeedVectorDestroy(&sgs_dd_data->sgs_nodal_ceed)); 360 PetscCall(OperatorApplyContextDestroy(sgs_dd_data->op_nodal_evaluation_ctx)); 361 PetscCall(DMDestroy(&sgs_dd_data->dm_sgs)); 362 PetscCall(PetscFree(sgs_dd_data)); 363 364 PetscFunctionReturn(PETSC_SUCCESS); 365 } 366