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, ifunction_qfctx; 18 } *SgsDDSetupData; 19 20 PetscErrorCode SgsDDSetupDataDestroy(SgsDDSetupData sgs_dd_setup_data) { 21 Ceed ceed; 22 23 PetscFunctionBeginUser; 24 PetscCall(CeedElemRestrictionGetCeed(sgs_dd_setup_data->elem_restr_sgs, &ceed)); 25 26 PetscCallCeed(ceed, CeedElemRestrictionDestroy(&sgs_dd_setup_data->elem_restr_grid_aniso)); 27 PetscCallCeed(ceed, CeedElemRestrictionDestroy(&sgs_dd_setup_data->elem_restr_sgs)); 28 PetscCallCeed(ceed, CeedVectorDestroy(&sgs_dd_setup_data->grid_aniso_ceed)); 29 PetscCallCeed(ceed, CeedQFunctionContextDestroy(&sgs_dd_setup_data->sgsdd_qfctx)); 30 PetscCallCeed(ceed, CeedQFunctionContextDestroy(&sgs_dd_setup_data->ifunction_qfctx)); 31 PetscCall(PetscFree(sgs_dd_setup_data)); 32 PetscFunctionReturn(PETSC_SUCCESS); 33 } 34 35 // @brief Create DM for storing subgrid stress at nodes 36 static PetscErrorCode SgsDDCreateDM(DM dm_source, DM *dm_sgs, PetscInt degree, PetscInt q_extra, PetscInt *num_components) { 37 PetscSection section; 38 39 PetscFunctionBeginUser; 40 *num_components = 6; 41 42 PetscCall(DMClone(dm_source, dm_sgs)); 43 PetscCall(PetscObjectSetName((PetscObject)*dm_sgs, "Subgrid Stress Projection")); 44 45 PetscCall(DMSetupByOrder_FEM(PETSC_TRUE, PETSC_TRUE, degree, 1, q_extra, 1, num_components, *dm_sgs)); 46 47 PetscCall(DMGetLocalSection(*dm_sgs, §ion)); 48 PetscCall(PetscSectionSetFieldName(section, 0, "")); 49 PetscCall(PetscSectionSetComponentName(section, 0, 0, "KMSubgridStressXX")); 50 PetscCall(PetscSectionSetComponentName(section, 0, 1, "KMSubgridStressYY")); 51 PetscCall(PetscSectionSetComponentName(section, 0, 2, "KMSubgridStressZZ")); 52 PetscCall(PetscSectionSetComponentName(section, 0, 3, "KMSubgridStressYZ")); 53 PetscCall(PetscSectionSetComponentName(section, 0, 4, "KMSubgridStressXZ")); 54 PetscCall(PetscSectionSetComponentName(section, 0, 5, "KMSubgridStressXY")); 55 PetscFunctionReturn(PETSC_SUCCESS); 56 }; 57 58 // @brief Evaluate data-driven SGS using fused method 59 static PetscErrorCode SgsDDNodalStressEval_Fused(User user, Vec Q_loc, Vec VelocityGradient, Vec SGSNodal_loc) { 60 SgsDDData sgs_dd_data = user->sgs_dd_data; 61 PetscMemType q_mem_type; 62 63 PetscFunctionBeginUser; 64 PetscCall(VecP2C(Q_loc, &q_mem_type, user->q_ceed)); // q_ceed is an implicit input 65 66 PetscCall(ApplyCeedOperatorGlobalToLocal(VelocityGradient, SGSNodal_loc, sgs_dd_data->op_nodal_evaluation_ctx)); 67 68 PetscCall(VecC2P(user->q_ceed, q_mem_type, Q_loc)); 69 PetscFunctionReturn(PETSC_SUCCESS); 70 } 71 72 // @brief Create CeedOperator to calculate data-drive SGS at nodes 73 static PetscErrorCode SgsDDSetupNodalEvaluation_Fused(Ceed ceed, User user, CeedData ceed_data, SgsDDSetupData sgs_dd_setup_data) { 74 SgsDDData sgs_dd_data = user->sgs_dd_data; 75 CeedQFunction qf_multiplicity, qf_sgs_dd_nodal; 76 CeedOperator op_multiplicity, op_sgs_dd_nodal; 77 CeedInt num_comp_q, num_comp_grad_velo, num_comp_x, num_comp_grid_aniso; 78 PetscInt dim; 79 CeedVector multiplicity, inv_multiplicity; 80 CeedElemRestriction elem_restr_inv_multiplicity, elem_restr_grad_velo, elem_restr_sgs; 81 DMLabel domain_label = NULL; 82 PetscInt label_value = 0, height = 0, dm_field = 0; 83 84 PetscFunctionBeginUser; 85 PetscCall(DMGetDimension(user->dm, &dim)); 86 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_x, &num_comp_x)); 87 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_q, &num_comp_q)); 88 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(sgs_dd_setup_data->elem_restr_grid_aniso, &num_comp_grid_aniso)); 89 90 { // Get velocity gradient information 91 CeedOperatorField op_field; 92 PetscCallCeed(ceed, CeedOperatorGetFieldByName(user->grad_velo_proj->l2_rhs_ctx->op, "velocity gradient", &op_field)); 93 PetscCallCeed(ceed, CeedOperatorFieldGetElemRestriction(op_field, &elem_restr_grad_velo)); 94 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(elem_restr_grad_velo, &num_comp_grad_velo)); 95 } 96 PetscCall(DMPlexCeedElemRestrictionCreate(ceed, sgs_dd_data->dm_sgs, domain_label, label_value, height, dm_field, &elem_restr_sgs)); 97 PetscCallCeed(ceed, CeedElemRestrictionCreateVector(elem_restr_sgs, &sgs_dd_data->sgs_nodal_ceed, NULL)); 98 99 // -- Create inverse multiplicity for correcting nodal assembly 100 PetscCallCeed(ceed, CeedElemRestrictionCreateVector(ceed_data->elem_restr_q, &multiplicity, NULL)); 101 PetscCallCeed(ceed, CeedElemRestrictionGetMultiplicity(ceed_data->elem_restr_q, multiplicity)); 102 PetscCall(DMPlexCeedElemRestrictionCollocatedCreate(ceed, sgs_dd_data->dm_sgs, domain_label, label_value, height, 1, &elem_restr_inv_multiplicity)); 103 PetscCallCeed(ceed, CeedElemRestrictionCreateVector(elem_restr_inv_multiplicity, &inv_multiplicity, NULL)); 104 105 PetscCallCeed(ceed, CeedQFunctionCreateInterior(ceed, 1, InverseMultiplicity, InverseMultiplicity_loc, &qf_multiplicity)); 106 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_multiplicity, "multiplicity", num_comp_q, CEED_EVAL_NONE)); 107 PetscCallCeed(ceed, CeedQFunctionAddOutput(qf_multiplicity, "inverse multiplicity", 1, CEED_EVAL_NONE)); 108 109 PetscCallCeed(ceed, CeedOperatorCreate(ceed, qf_multiplicity, NULL, NULL, &op_multiplicity)); 110 PetscCallCeed(ceed, CeedOperatorSetName(op_multiplicity, "SGS DD Model - Create Multiplicity Scaling")); 111 PetscCallCeed(ceed, CeedOperatorSetField(op_multiplicity, "multiplicity", ceed_data->elem_restr_q, CEED_BASIS_NONE, CEED_VECTOR_ACTIVE)); 112 PetscCallCeed(ceed, 113 CeedOperatorSetField(op_multiplicity, "inverse multiplicity", elem_restr_inv_multiplicity, CEED_BASIS_NONE, CEED_VECTOR_ACTIVE)); 114 115 PetscCallCeed(ceed, CeedOperatorApply(op_multiplicity, multiplicity, inv_multiplicity, CEED_REQUEST_IMMEDIATE)); 116 117 // -- Create operator for SGS DD model nodal evaluation 118 switch (user->phys->state_var) { 119 case STATEVAR_PRIMITIVE: 120 PetscCallCeed(ceed, CeedQFunctionCreateInterior(ceed, 1, ComputeSgsDDNodal_Prim, ComputeSgsDDNodal_Prim_loc, &qf_sgs_dd_nodal)); 121 break; 122 case STATEVAR_CONSERVATIVE: 123 PetscCallCeed(ceed, CeedQFunctionCreateInterior(ceed, 1, ComputeSgsDDNodal_Conserv, ComputeSgsDDNodal_Conserv_loc, &qf_sgs_dd_nodal)); 124 break; 125 default: 126 SETERRQ(PetscObjectComm((PetscObject)user->dm), PETSC_ERR_SUP, "Data-driven SGS nodal evaluation not available for chosen state variable"); 127 } 128 129 // Mesh/geometry order and solution basis order may differ, therefore must interpolate 130 CeedBasis basis_x_to_q; 131 PetscCallCeed(ceed, CeedBasisCreateProjection(ceed_data->basis_x, ceed_data->basis_q, &basis_x_to_q)); 132 133 PetscCallCeed(ceed, CeedQFunctionSetContext(qf_sgs_dd_nodal, sgs_dd_setup_data->sgsdd_qfctx)); 134 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_dd_nodal, "q", num_comp_q, CEED_EVAL_NONE)); 135 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_dd_nodal, "x", num_comp_x, CEED_EVAL_INTERP)); 136 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_dd_nodal, "gradient velocity", num_comp_grad_velo, CEED_EVAL_NONE)); 137 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_dd_nodal, "anisotropy tensor", num_comp_grid_aniso, CEED_EVAL_NONE)); 138 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_dd_nodal, "inverse multiplicity", 1, CEED_EVAL_NONE)); 139 PetscCallCeed(ceed, CeedQFunctionAddOutput(qf_sgs_dd_nodal, "km_sgs", sgs_dd_data->num_comp_sgs, CEED_EVAL_NONE)); 140 141 PetscCallCeed(ceed, CeedOperatorCreate(ceed, qf_sgs_dd_nodal, NULL, NULL, &op_sgs_dd_nodal)); 142 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_dd_nodal, "q", ceed_data->elem_restr_q, CEED_BASIS_NONE, user->q_ceed)); 143 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_dd_nodal, "x", ceed_data->elem_restr_x, basis_x_to_q, ceed_data->x_coord)); 144 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_dd_nodal, "gradient velocity", elem_restr_grad_velo, CEED_BASIS_NONE, CEED_VECTOR_ACTIVE)); 145 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_dd_nodal, "anisotropy tensor", sgs_dd_setup_data->elem_restr_grid_aniso, CEED_BASIS_NONE, 146 sgs_dd_setup_data->grid_aniso_ceed)); 147 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_dd_nodal, "inverse multiplicity", elem_restr_inv_multiplicity, CEED_BASIS_NONE, inv_multiplicity)); 148 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_dd_nodal, "km_sgs", elem_restr_sgs, CEED_BASIS_NONE, CEED_VECTOR_ACTIVE)); 149 150 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, 151 NULL, &sgs_dd_data->op_nodal_evaluation_ctx)); 152 153 sgs_dd_setup_data->elem_restr_sgs = elem_restr_sgs; 154 sgs_dd_data->sgs_nodal_eval = SgsDDNodalStressEval_Fused; 155 156 PetscCallCeed(ceed, CeedVectorDestroy(&multiplicity)); 157 PetscCallCeed(ceed, CeedVectorDestroy(&inv_multiplicity)); 158 PetscCallCeed(ceed, CeedBasisDestroy(&basis_x_to_q)); 159 PetscCallCeed(ceed, CeedElemRestrictionDestroy(&elem_restr_inv_multiplicity)); 160 PetscCallCeed(ceed, CeedQFunctionDestroy(&qf_multiplicity)); 161 PetscCallCeed(ceed, CeedQFunctionDestroy(&qf_sgs_dd_nodal)); 162 PetscCallCeed(ceed, CeedOperatorDestroy(&op_multiplicity)); 163 PetscCallCeed(ceed, CeedOperatorDestroy(&op_sgs_dd_nodal)); 164 PetscFunctionReturn(PETSC_SUCCESS); 165 } 166 167 // @brief Create CeedOperator to compute SGS contribution to the residual 168 static PetscErrorCode SgsSetupNodalIFunction(Ceed ceed, User user, CeedData ceed_data, SgsDDSetupData sgs_dd_setup_data) { 169 SgsDDData sgs_dd_data = user->sgs_dd_data; 170 CeedInt num_comp_q, num_comp_qd, num_comp_x; 171 PetscInt dim; 172 CeedQFunction qf_sgs_apply; 173 CeedOperator op_sgs_apply; 174 CeedBasis basis_sgs; 175 176 PetscFunctionBeginUser; 177 PetscCall(DMGetDimension(user->dm, &dim)); 178 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_q, &num_comp_q)); 179 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_qd_i, &num_comp_qd)); 180 PetscCallCeed(ceed, CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_x, &num_comp_x)); 181 182 PetscCall(CreateBasisFromPlex(ceed, sgs_dd_data->dm_sgs, 0, 0, 0, 0, &basis_sgs)); 183 184 switch (user->phys->state_var) { 185 case STATEVAR_PRIMITIVE: 186 PetscCallCeed(ceed, CeedQFunctionCreateInterior(ceed, 1, IFunction_NodalSgs_Prim, IFunction_NodalSgs_Prim_loc, &qf_sgs_apply)); 187 break; 188 case STATEVAR_CONSERVATIVE: 189 PetscCallCeed(ceed, CeedQFunctionCreateInterior(ceed, 1, IFunction_NodalSgs_Conserv, IFunction_NodalSgs_Conserv_loc, &qf_sgs_apply)); 190 break; 191 default: 192 SETERRQ(PetscObjectComm((PetscObject)user->dm), PETSC_ERR_SUP, "Nodal SGS evaluation not available for chosen state variable"); 193 } 194 195 PetscCallCeed(ceed, CeedQFunctionSetContext(qf_sgs_apply, sgs_dd_setup_data->ifunction_qfctx)); 196 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_apply, "q", num_comp_q, CEED_EVAL_INTERP)); 197 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_apply, "qdata", num_comp_qd, CEED_EVAL_NONE)); 198 PetscCallCeed(ceed, CeedQFunctionAddInput(qf_sgs_apply, "km_sgs", sgs_dd_data->num_comp_sgs, CEED_EVAL_INTERP)); 199 PetscCallCeed(ceed, CeedQFunctionAddOutput(qf_sgs_apply, "Grad_v", num_comp_q * dim, CEED_EVAL_GRAD)); 200 201 PetscCallCeed(ceed, CeedOperatorCreate(ceed, qf_sgs_apply, NULL, NULL, &op_sgs_apply)); 202 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_apply, "q", ceed_data->elem_restr_q, ceed_data->basis_q, CEED_VECTOR_ACTIVE)); 203 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_apply, "qdata", ceed_data->elem_restr_qd_i, CEED_BASIS_NONE, ceed_data->q_data)); 204 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_apply, "km_sgs", sgs_dd_setup_data->elem_restr_sgs, basis_sgs, sgs_dd_data->sgs_nodal_ceed)); 205 PetscCallCeed(ceed, CeedOperatorSetField(op_sgs_apply, "Grad_v", ceed_data->elem_restr_q, ceed_data->basis_q, CEED_VECTOR_ACTIVE)); 206 207 PetscCall( 208 OperatorApplyContextCreate(user->dm, user->dm, ceed, op_sgs_apply, user->q_ceed, user->g_ceed, NULL, NULL, &sgs_dd_data->op_sgs_apply_ctx)); 209 210 PetscCallCeed(ceed, CeedOperatorDestroy(&op_sgs_apply)); 211 PetscCallCeed(ceed, CeedQFunctionDestroy(&qf_sgs_apply)); 212 PetscFunctionReturn(PETSC_SUCCESS); 213 } 214 215 // @brief Calculate and add data-driven SGS residual to the global residual 216 PetscErrorCode SgsDDApplyIFunction(User user, const Vec Q_loc, Vec G_loc) { 217 SgsDDData sgs_dd_data = user->sgs_dd_data; 218 Vec VelocityGradient, SGSNodal_loc; 219 PetscMemType sgs_nodal_mem_type; 220 221 PetscFunctionBeginUser; 222 PetscCall(DMGetGlobalVector(user->grad_velo_proj->dm, &VelocityGradient)); 223 PetscCall(VelocityGradientProjectionApply(user->grad_velo_proj, Q_loc, VelocityGradient)); 224 225 // -- Compute Nodal SGS tensor 226 PetscCall(DMGetLocalVector(sgs_dd_data->dm_sgs, &SGSNodal_loc)); 227 PetscCall(sgs_dd_data->sgs_nodal_eval(user, Q_loc, VelocityGradient, SGSNodal_loc)); 228 229 // -- Compute contribution of the SGS stress 230 PetscCall(VecP2C(SGSNodal_loc, &sgs_nodal_mem_type, sgs_dd_data->sgs_nodal_ceed)); // sgs_nodal_ceed is an implicit input 231 PetscCall(ApplyAddCeedOperatorLocalToLocal(Q_loc, G_loc, sgs_dd_data->op_sgs_apply_ctx)); 232 233 // -- Return local SGS vector 234 PetscCall(VecC2P(sgs_dd_data->sgs_nodal_ceed, sgs_nodal_mem_type, SGSNodal_loc)); 235 PetscCall(DMRestoreLocalVector(sgs_dd_data->dm_sgs, &SGSNodal_loc)); 236 PetscCall(DMRestoreGlobalVector(user->grad_velo_proj->dm, &VelocityGradient)); 237 PetscFunctionReturn(PETSC_SUCCESS); 238 } 239 240 // @brief B = A^T, A is NxM, B is MxN 241 static PetscErrorCode TransposeMatrix(const PetscScalar *A, PetscScalar *B, const PetscInt N, const PetscInt M) { 242 PetscFunctionBeginUser; 243 for (PetscInt i = 0; i < N; i++) { 244 for (PetscInt j = 0; j < M; j++) { 245 B[j * N + i] = A[i * M + j]; 246 } 247 } 248 PetscFunctionReturn(PETSC_SUCCESS); 249 } 250 251 // @brief Read neural network coefficients from file and put into context struct 252 static PetscErrorCode SgsDDContextFill(MPI_Comm comm, char data_dir[PETSC_MAX_PATH_LEN], SgsDDContext *psgsdd_ctx) { 253 SgsDDContext sgsdd_ctx; 254 PetscInt num_inputs = (*psgsdd_ctx)->num_inputs, num_outputs = (*psgsdd_ctx)->num_outputs, num_neurons = (*psgsdd_ctx)->num_neurons; 255 char file_path[PETSC_MAX_PATH_LEN]; 256 PetscScalar *temp; 257 258 PetscFunctionBeginUser; 259 { 260 SgsDDContext sgsdd_temp; 261 PetscCall(PetscNew(&sgsdd_temp)); 262 *sgsdd_temp = **psgsdd_ctx; 263 sgsdd_temp->offsets.bias1 = 0; 264 sgsdd_temp->offsets.bias2 = sgsdd_temp->offsets.bias1 + num_neurons; 265 sgsdd_temp->offsets.weight1 = sgsdd_temp->offsets.bias2 + num_neurons; 266 sgsdd_temp->offsets.weight2 = sgsdd_temp->offsets.weight1 + num_neurons * num_inputs; 267 sgsdd_temp->offsets.out_scaling = sgsdd_temp->offsets.weight2 + num_inputs * num_neurons; 268 PetscInt total_num_scalars = sgsdd_temp->offsets.out_scaling + 2 * num_outputs; 269 sgsdd_temp->total_bytes = sizeof(*sgsdd_ctx) + total_num_scalars * sizeof(sgsdd_ctx->data[0]); 270 PetscCall(PetscMalloc(sgsdd_temp->total_bytes, &sgsdd_ctx)); 271 *sgsdd_ctx = *sgsdd_temp; 272 PetscCall(PetscFree(sgsdd_temp)); 273 } 274 275 PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "b1.dat")); 276 PetscCall(PhastaDatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.bias1])); 277 PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "b2.dat")); 278 PetscCall(PhastaDatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.bias2])); 279 PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "OutScaling.dat")); 280 PetscCall(PhastaDatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.out_scaling])); 281 282 { 283 PetscCall(PetscMalloc1(num_inputs * num_neurons, &temp)); 284 PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "w1.dat")); 285 PetscCall(PhastaDatFileReadToArrayReal(comm, file_path, temp)); 286 PetscCall(TransposeMatrix(temp, &sgsdd_ctx->data[sgsdd_ctx->offsets.weight1], num_inputs, num_neurons)); 287 PetscCall(PetscFree(temp)); 288 } 289 { 290 PetscCall(PetscMalloc1(num_outputs * num_neurons, &temp)); 291 PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "w2.dat")); 292 PetscCall(PhastaDatFileReadToArrayReal(comm, file_path, temp)); 293 PetscCall(TransposeMatrix(temp, &sgsdd_ctx->data[sgsdd_ctx->offsets.weight2], num_neurons, num_outputs)); 294 PetscCall(PetscFree(temp)); 295 } 296 297 PetscCall(PetscFree(*psgsdd_ctx)); 298 *psgsdd_ctx = sgsdd_ctx; 299 PetscFunctionReturn(PETSC_SUCCESS); 300 } 301 302 PetscErrorCode SgsDDSetup(Ceed ceed, User user, CeedData ceed_data, ProblemData *problem) { 303 PetscReal alpha = 0; 304 SgsDDContext sgsdd_ctx; 305 MPI_Comm comm = user->comm; 306 char sgs_dd_dir[PETSC_MAX_PATH_LEN] = "./dd_sgs_parameters"; 307 SgsDDSetupData sgs_dd_setup_data; 308 NewtonianIdealGasContext gas; 309 310 PetscFunctionBeginUser; 311 PetscCall(VelocityGradientProjectionSetup(ceed, user, ceed_data, problem, user->phys->state_var, ceed_data->elem_restr_q, ceed_data->basis_q, 312 &user->grad_velo_proj)); 313 314 PetscCall(PetscNew(&sgsdd_ctx)); 315 316 PetscOptionsBegin(comm, NULL, "SGS Data-Driven Model Options", NULL); 317 PetscCall(PetscOptionsReal("-sgs_model_dd_leakyrelu_alpha", "Slope parameter for Leaky ReLU activation function", NULL, alpha, &alpha, NULL)); 318 PetscCall(PetscOptionsString("-sgs_model_dd_parameter_dir", "Path to directory with model parameters (weights, biases, etc.)", NULL, sgs_dd_dir, 319 sgs_dd_dir, sizeof(sgs_dd_dir), NULL)); 320 PetscOptionsEnd(); 321 322 sgsdd_ctx->num_layers = 1; 323 sgsdd_ctx->num_inputs = 6; 324 sgsdd_ctx->num_outputs = 6; 325 sgsdd_ctx->num_neurons = 20; 326 sgsdd_ctx->alpha = alpha; 327 328 PetscCall(SgsDDContextFill(comm, sgs_dd_dir, &sgsdd_ctx)); 329 330 // -- Create DM for storing SGS tensor at nodes 331 PetscCall(PetscNew(&user->sgs_dd_data)); 332 PetscCall(SgsDDCreateDM(user->dm, &user->sgs_dd_data->dm_sgs, user->app_ctx->degree, user->app_ctx->q_extra, &user->sgs_dd_data->num_comp_sgs)); 333 334 PetscCall(PetscNew(&sgs_dd_setup_data)); 335 336 PetscCallCeed(ceed, CeedQFunctionContextGetDataRead(problem->apply_vol_ifunction.qfunction_context, CEED_MEM_HOST, &gas)); 337 sgsdd_ctx->gas = *gas; 338 PetscCallCeed(ceed, CeedQFunctionContextRestoreDataRead(problem->apply_vol_ifunction.qfunction_context, &gas)); 339 PetscCallCeed(ceed, CeedQFunctionContextCreate(user->ceed, &sgs_dd_setup_data->sgsdd_qfctx)); 340 PetscCallCeed(ceed, 341 CeedQFunctionContextSetData(sgs_dd_setup_data->sgsdd_qfctx, CEED_MEM_HOST, CEED_USE_POINTER, sgsdd_ctx->total_bytes, sgsdd_ctx)); 342 PetscCallCeed(ceed, CeedQFunctionContextSetDataDestroy(sgs_dd_setup_data->sgsdd_qfctx, CEED_MEM_HOST, FreeContextPetsc)); 343 344 PetscCallCeed(ceed, CeedQFunctionContextReferenceCopy(problem->apply_vol_ifunction.qfunction_context, &sgs_dd_setup_data->ifunction_qfctx)); 345 346 // -- Compute and store anisotropy tensor 347 PetscCall(GridAnisotropyTensorProjectionSetupApply(ceed, user, ceed_data, &sgs_dd_setup_data->elem_restr_grid_aniso, 348 &sgs_dd_setup_data->grid_aniso_ceed)); 349 350 // -- Create Nodal Evaluation Operator 351 PetscCall(SgsDDSetupNodalEvaluation_Fused(ceed, user, ceed_data, sgs_dd_setup_data)); 352 353 // -- Create Operator to evalutate residual of SGS stress 354 PetscCall(SgsSetupNodalIFunction(ceed, user, ceed_data, sgs_dd_setup_data)); 355 356 PetscCall(SgsDDSetupDataDestroy(sgs_dd_setup_data)); 357 PetscFunctionReturn(PETSC_SUCCESS); 358 } 359 360 PetscErrorCode SgsDDDataDestroy(SgsDDData sgs_dd_data) { 361 PetscFunctionBeginUser; 362 if (!sgs_dd_data) PetscFunctionReturn(PETSC_SUCCESS); 363 Ceed ceed = sgs_dd_data->op_sgs_apply_ctx->ceed; 364 365 PetscCallCeed(ceed, CeedVectorDestroy(&sgs_dd_data->sgs_nodal_ceed)); 366 PetscCall(OperatorApplyContextDestroy(sgs_dd_data->op_nodal_evaluation_ctx)); 367 PetscCall(OperatorApplyContextDestroy(sgs_dd_data->op_sgs_apply_ctx)); 368 PetscCall(DMDestroy(&sgs_dd_data->dm_sgs)); 369 PetscCall(PetscFree(sgs_dd_data)); 370 PetscFunctionReturn(PETSC_SUCCESS); 371 } 372