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