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