xref: /honee/problems/sgs_dd_model.c (revision 58cb3b9b130e09a7bfed261da362b8a7b0f6c8bc)
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   PetscFunctionBeginUser;
22   CeedElemRestrictionDestroy(&sgs_dd_setup_data->elem_restr_grid_aniso);
23   CeedElemRestrictionDestroy(&sgs_dd_setup_data->elem_restr_sgs);
24   CeedVectorDestroy(&sgs_dd_setup_data->grid_aniso_ceed);
25   CeedQFunctionContextDestroy(&sgs_dd_setup_data->sgsdd_qfctx);
26 
27   PetscCall(PetscFree(sgs_dd_setup_data));
28   PetscFunctionReturn(PETSC_SUCCESS);
29 }
30 
31 // @brief Create DM for storing subgrid stress at nodes
32 PetscErrorCode SGS_DD_ModelCreateDM(DM dm_source, DM *dm_sgs, PetscInt degree, PetscInt *num_components) {
33   PetscFE      fe;
34   PetscSection section;
35   PetscInt     dim;
36 
37   PetscFunctionBeginUser;
38   *num_components = 6;
39 
40   PetscCall(DMClone(dm_source, dm_sgs));
41   PetscCall(DMGetDimension(*dm_sgs, &dim));
42   PetscCall(PetscObjectSetName((PetscObject)*dm_sgs, "Subgrid Stress Projection"));
43 
44   PetscCall(PetscFECreateLagrange(PETSC_COMM_SELF, dim, *num_components, PETSC_FALSE, degree, PETSC_DECIDE, &fe));
45   PetscCall(PetscObjectSetName((PetscObject)fe, "Subgrid Stress Projection"));
46   PetscCall(DMAddField(*dm_sgs, NULL, (PetscObject)fe));
47   PetscCall(DMCreateDS(*dm_sgs));
48   PetscCall(DMPlexSetClosurePermutationTensor(*dm_sgs, PETSC_DETERMINE, NULL));
49 
50   PetscCall(DMGetLocalSection(*dm_sgs, &section));
51   PetscCall(PetscSectionSetFieldName(section, 0, ""));
52   PetscCall(PetscSectionSetComponentName(section, 0, 0, "KMSubgridStressXX"));
53   PetscCall(PetscSectionSetComponentName(section, 0, 1, "KMSubgridStressYY"));
54   PetscCall(PetscSectionSetComponentName(section, 0, 2, "KMSubgridStressZZ"));
55   PetscCall(PetscSectionSetComponentName(section, 0, 3, "KMSubgridStressYZ"));
56   PetscCall(PetscSectionSetComponentName(section, 0, 4, "KMSubgridStressXZ"));
57   PetscCall(PetscSectionSetComponentName(section, 0, 5, "KMSubgridStressXY"));
58 
59   PetscCall(PetscFEDestroy(&fe));
60 
61   PetscFunctionReturn(PETSC_SUCCESS);
62 };
63 
64 // @brief Create CeedOperator to calculate data-drive SGS at nodes
65 PetscErrorCode SGS_DD_ModelSetupNodalEvaluation(Ceed ceed, User user, CeedData ceed_data, SGS_DD_ModelSetupData sgs_dd_setup_data) {
66   SGS_DD_Data         sgs_dd_data = user->sgs_dd_data;
67   CeedQFunction       qf_multiplicity, qf_sgs_dd_nodal;
68   CeedOperator        op_multiplicity, op_sgs_dd_nodal;
69   CeedInt             num_elem, elem_size, num_comp_q, num_qpts_1d, num_comp_grad_velo, num_comp_x, num_comp_grid_aniso;
70   PetscInt            dim;
71   CeedVector          multiplicity, inv_multiplicity;
72   CeedElemRestriction elem_restr_inv_multiplicity, elem_restr_grad_velo, elem_restr_sgs;
73 
74   PetscFunctionBeginUser;
75   PetscCall(DMGetDimension(user->dm, &dim));
76   CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_x, &num_comp_x);
77   CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_q, &num_comp_q);
78   CeedElemRestrictionGetNumComponents(sgs_dd_setup_data->elem_restr_grid_aniso, &num_comp_grid_aniso);
79   CeedElemRestrictionGetNumElements(ceed_data->elem_restr_q, &num_elem);
80   CeedElemRestrictionGetElementSize(ceed_data->elem_restr_q, &elem_size);
81   CeedBasisGetNumQuadraturePoints1D(ceed_data->basis_q, &num_qpts_1d);
82 
83   {  // Get velocity gradient information
84     CeedOperatorField op_field;
85     CeedOperatorGetFieldByName(user->grad_velo_proj->l2_rhs_ctx->op, "velocity gradient", &op_field);
86     CeedOperatorFieldGetElemRestriction(op_field, &elem_restr_grad_velo);
87     CeedElemRestrictionGetNumComponents(elem_restr_grad_velo, &num_comp_grad_velo);
88   }
89 
90   PetscCall(GetRestrictionForDomain(ceed, sgs_dd_data->dm_sgs, 0, 0, 0, 0, num_qpts_1d, 0, &elem_restr_sgs, NULL, NULL));
91   CeedElemRestrictionCreateVector(elem_restr_sgs, &sgs_dd_data->sgs_nodal_ceed, NULL);
92 
93   // -- Create inverse multiplicity for correcting nodal assembly
94   CeedElemRestrictionCreateVector(ceed_data->elem_restr_q, &multiplicity, NULL);
95   CeedElemRestrictionGetMultiplicity(ceed_data->elem_restr_q, multiplicity);
96   CeedElemRestrictionCreateStrided(ceed, num_elem, elem_size, 1, num_elem * elem_size, CEED_STRIDES_BACKEND, &elem_restr_inv_multiplicity);
97   CeedElemRestrictionCreateVector(elem_restr_inv_multiplicity, &inv_multiplicity, NULL);
98 
99   CeedQFunctionCreateInterior(ceed, 1, InverseMultiplicity, InverseMultiplicity_loc, &qf_multiplicity);
100   CeedQFunctionAddInput(qf_multiplicity, "multiplicity", num_comp_q, CEED_EVAL_NONE);
101   CeedQFunctionAddOutput(qf_multiplicity, "inverse multiplicity", 1, CEED_EVAL_NONE);
102 
103   CeedOperatorCreate(ceed, qf_multiplicity, NULL, NULL, &op_multiplicity);
104   CeedOperatorSetName(op_multiplicity, "SGS DD Model - Create Multiplicity Scaling");
105   CeedOperatorSetField(op_multiplicity, "multiplicity", ceed_data->elem_restr_q, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE);
106   CeedOperatorSetField(op_multiplicity, "inverse multiplicity", elem_restr_inv_multiplicity, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE);
107 
108   CeedOperatorApply(op_multiplicity, multiplicity, inv_multiplicity, CEED_REQUEST_IMMEDIATE);
109 
110   // -- Create operator for SGS DD model nodal evaluation
111   switch (user->phys->state_var) {
112     case STATEVAR_PRIMITIVE:
113       CeedQFunctionCreateInterior(ceed, 1, ComputeSGS_DDAnisotropicNodal_Prim, ComputeSGS_DDAnisotropicNodal_Prim_loc, &qf_sgs_dd_nodal);
114       break;
115     case STATEVAR_CONSERVATIVE:
116       CeedQFunctionCreateInterior(ceed, 1, ComputeSGS_DDAnisotropicNodal_Conserv, ComputeSGS_DDAnisotropicNodal_Conserv_loc, &qf_sgs_dd_nodal);
117       break;
118     default:
119       SETERRQ(PetscObjectComm((PetscObject)user->dm), PETSC_ERR_SUP,
120               "Anisotropic data-driven SGS nodal evaluation not available for chosen state variable");
121   }
122 
123   // Mesh/geometry order and solution basis order may differ, therefore must interpolate
124   CeedBasis basis_x_to_q;
125   PetscCall(CeedBasisCreateProjection(ceed_data->basis_x, ceed_data->basis_q, &basis_x_to_q));
126 
127   CeedQFunctionSetContext(qf_sgs_dd_nodal, sgs_dd_setup_data->sgsdd_qfctx);
128   CeedQFunctionAddInput(qf_sgs_dd_nodal, "q", num_comp_q, CEED_EVAL_NONE);
129   CeedQFunctionAddInput(qf_sgs_dd_nodal, "x", num_comp_x, CEED_EVAL_INTERP);
130   CeedQFunctionAddInput(qf_sgs_dd_nodal, "gradient velocity", num_comp_grad_velo, CEED_EVAL_NONE);
131   CeedQFunctionAddInput(qf_sgs_dd_nodal, "anisotropy tensor", num_comp_grid_aniso, CEED_EVAL_NONE);
132   CeedQFunctionAddInput(qf_sgs_dd_nodal, "inverse multiplicity", 1, CEED_EVAL_NONE);
133   CeedQFunctionAddOutput(qf_sgs_dd_nodal, "km_sgs", sgs_dd_data->num_comp_sgs, CEED_EVAL_NONE);
134 
135   CeedOperatorCreate(ceed, qf_sgs_dd_nodal, NULL, NULL, &op_sgs_dd_nodal);
136   CeedOperatorSetField(op_sgs_dd_nodal, "q", ceed_data->elem_restr_q, CEED_BASIS_COLLOCATED, user->q_ceed);
137   CeedOperatorSetField(op_sgs_dd_nodal, "x", ceed_data->elem_restr_x, basis_x_to_q, ceed_data->x_coord);
138   CeedOperatorSetField(op_sgs_dd_nodal, "gradient velocity", elem_restr_grad_velo, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE);
139   CeedOperatorSetField(op_sgs_dd_nodal, "anisotropy tensor", sgs_dd_setup_data->elem_restr_grid_aniso, CEED_BASIS_COLLOCATED,
140                        sgs_dd_setup_data->grid_aniso_ceed);
141   CeedOperatorSetField(op_sgs_dd_nodal, "inverse multiplicity", elem_restr_inv_multiplicity, CEED_BASIS_COLLOCATED, inv_multiplicity);
142   CeedOperatorSetField(op_sgs_dd_nodal, "km_sgs", elem_restr_sgs, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE);
143 
144   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,
145                                        NULL, &sgs_dd_data->op_nodal_evaluation_ctx));
146 
147   sgs_dd_setup_data->elem_restr_sgs = elem_restr_sgs;
148 
149   CeedVectorDestroy(&multiplicity);
150   CeedVectorDestroy(&inv_multiplicity);
151   CeedBasisDestroy(&basis_x_to_q);
152   CeedElemRestrictionDestroy(&elem_restr_inv_multiplicity);
153   CeedQFunctionDestroy(&qf_multiplicity);
154   CeedQFunctionDestroy(&qf_sgs_dd_nodal);
155   CeedOperatorDestroy(&op_multiplicity);
156   CeedOperatorDestroy(&op_sgs_dd_nodal);
157   PetscFunctionReturn(PETSC_SUCCESS);
158 }
159 
160 // @brief Create CeedOperator to compute SGS contribution to the residual
161 PetscErrorCode SGS_ModelSetupNodalIFunction(Ceed ceed, User user, CeedData ceed_data, SGS_DD_ModelSetupData sgs_dd_setup_data) {
162   SGS_DD_Data   sgs_dd_data = user->sgs_dd_data;
163   CeedInt       num_comp_q, num_comp_qd, num_comp_x, num_qpts_1d, num_nodes_1d;
164   PetscInt      dim;
165   CeedQFunction qf_sgs_apply;
166   CeedOperator  op_sgs_apply;
167   CeedBasis     basis_sgs;
168 
169   PetscFunctionBeginUser;
170   PetscCall(DMGetDimension(user->dm, &dim));
171   CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_q, &num_comp_q);
172   CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_qd_i, &num_comp_qd);
173   CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_x, &num_comp_x);
174   CeedBasisGetNumQuadraturePoints1D(ceed_data->basis_q, &num_qpts_1d);
175   CeedBasisGetNumNodes1D(ceed_data->basis_q, &num_nodes_1d);
176 
177   CeedBasisCreateTensorH1Lagrange(ceed, dim, sgs_dd_data->num_comp_sgs, num_nodes_1d, num_qpts_1d, CEED_GAUSS, &basis_sgs);
178 
179   switch (user->phys->state_var) {
180     case STATEVAR_PRIMITIVE:
181       CeedQFunctionCreateInterior(ceed, 1, IFunction_NodalSubgridStress_Prim, IFunction_NodalSubgridStress_Prim_loc, &qf_sgs_apply);
182       break;
183     case STATEVAR_CONSERVATIVE:
184       CeedQFunctionCreateInterior(ceed, 1, IFunction_NodalSubgridStress_Conserv, IFunction_NodalSubgridStress_Conserv_loc, &qf_sgs_apply);
185       break;
186     default:
187       SETERRQ(PetscObjectComm((PetscObject)user->dm), PETSC_ERR_SUP, "Nodal SGS evaluation not available for chosen state variable");
188   }
189 
190   CeedQFunctionSetContext(qf_sgs_apply, sgs_dd_setup_data->sgsdd_qfctx);
191   CeedQFunctionAddInput(qf_sgs_apply, "q", num_comp_q, CEED_EVAL_INTERP);
192   CeedQFunctionAddInput(qf_sgs_apply, "qdata", num_comp_qd, CEED_EVAL_NONE);
193   CeedQFunctionAddInput(qf_sgs_apply, "x", num_comp_x, CEED_EVAL_INTERP);
194   CeedQFunctionAddInput(qf_sgs_apply, "km_sgs", sgs_dd_data->num_comp_sgs, CEED_EVAL_INTERP);
195   CeedQFunctionAddOutput(qf_sgs_apply, "Grad_v", num_comp_q * dim, CEED_EVAL_GRAD);
196 
197   CeedOperatorCreate(ceed, qf_sgs_apply, NULL, NULL, &op_sgs_apply);
198   CeedOperatorSetField(op_sgs_apply, "q", ceed_data->elem_restr_q, ceed_data->basis_q, CEED_VECTOR_ACTIVE);
199   CeedOperatorSetField(op_sgs_apply, "qdata", ceed_data->elem_restr_qd_i, CEED_BASIS_COLLOCATED, ceed_data->q_data);
200   CeedOperatorSetField(op_sgs_apply, "x", ceed_data->elem_restr_x, ceed_data->basis_x, ceed_data->x_coord);
201   CeedOperatorSetField(op_sgs_apply, "km_sgs", sgs_dd_setup_data->elem_restr_sgs, basis_sgs, sgs_dd_data->sgs_nodal_ceed);
202   CeedOperatorSetField(op_sgs_apply, "Grad_v", ceed_data->elem_restr_q, ceed_data->basis_q, CEED_VECTOR_ACTIVE);
203 
204   PetscCall(
205       OperatorApplyContextCreate(user->dm, user->dm, ceed, op_sgs_apply, user->q_ceed, user->g_ceed, NULL, NULL, &sgs_dd_data->op_sgs_apply_ctx));
206 
207   CeedOperatorDestroy(&op_sgs_apply);
208   CeedQFunctionDestroy(&qf_sgs_apply);
209   PetscFunctionReturn(PETSC_SUCCESS);
210 }
211 
212 // @brief Calculate and add data-driven SGS residual to the global residual
213 PetscErrorCode SGS_DD_ModelApplyIFunction(User user, const Vec Q_loc, Vec G_loc) {
214   SGS_DD_Data  sgs_dd_data = user->sgs_dd_data;
215   Vec          VelocityGradient, SGSNodal_loc;
216   PetscMemType sgs_nodal_mem_type, q_mem_type;
217 
218   PetscFunctionBeginUser;
219   PetscCall(DMGetGlobalVector(user->grad_velo_proj->dm, &VelocityGradient));
220   PetscCall(VelocityGradientProjectionApply(user, Q_loc, VelocityGradient));
221 
222   // -- Compute Nodal SGS tensor
223   PetscCall(DMGetLocalVector(sgs_dd_data->dm_sgs, &SGSNodal_loc));
224   PetscCall(VecP2C(Q_loc, &q_mem_type, user->q_ceed));  // q_ceed is an implicit input
225 
226   PetscCall(ApplyCeedOperatorGlobalToLocal(VelocityGradient, SGSNodal_loc, sgs_dd_data->op_nodal_evaluation_ctx));
227 
228   PetscCall(VecC2P(user->q_ceed, q_mem_type, Q_loc));
229   PetscCall(VecP2C(SGSNodal_loc, &sgs_nodal_mem_type, sgs_dd_data->sgs_nodal_ceed));  // sgs_nodal_ceed is an implicit input
230 
231   // -- Compute contribution of the SGS stress
232   PetscCall(ApplyAddCeedOperatorLocalToLocal(Q_loc, G_loc, sgs_dd_data->op_sgs_apply_ctx));
233 
234   // -- Return local SGS vector
235   PetscCall(VecC2P(sgs_dd_data->sgs_nodal_ceed, sgs_nodal_mem_type, SGSNodal_loc));
236   PetscCall(DMRestoreLocalVector(sgs_dd_data->dm_sgs, &SGSNodal_loc));
237   PetscCall(DMRestoreGlobalVector(user->grad_velo_proj->dm, &VelocityGradient));
238 
239   PetscFunctionReturn(PETSC_SUCCESS);
240 }
241 
242 // @brief B = A^T, A is NxM, B is MxN
243 PetscErrorCode TransposeMatrix(const PetscScalar *A, PetscScalar *B, const PetscInt N, const PetscInt M) {
244   PetscFunctionBeginUser;
245   for (PetscInt i = 0; i < N; i++) {
246     for (PetscInt j = 0; j < M; j++) {
247       B[j * N + i] = A[i * M + j];
248     }
249   }
250   PetscFunctionReturn(PETSC_SUCCESS);
251 }
252 
253 // @brief Read neural network coefficients from file and put into context struct
254 PetscErrorCode SGS_DD_ModelContextFill(MPI_Comm comm, char data_dir[PETSC_MAX_PATH_LEN], SGS_DDModelContext *psgsdd_ctx) {
255   SGS_DDModelContext sgsdd_ctx;
256   PetscInt           num_inputs = (*psgsdd_ctx)->num_inputs, num_outputs = (*psgsdd_ctx)->num_outputs, num_neurons = (*psgsdd_ctx)->num_neurons;
257   char               file_path[PETSC_MAX_PATH_LEN];
258   PetscScalar       *temp;
259 
260   PetscFunctionBeginUser;
261   {
262     SGS_DDModelContext sgsdd_temp;
263     PetscCall(PetscNew(&sgsdd_temp));
264     *sgsdd_temp                     = **psgsdd_ctx;
265     sgsdd_temp->offsets.bias1       = 0;
266     sgsdd_temp->offsets.bias2       = sgsdd_temp->offsets.bias1 + num_neurons;
267     sgsdd_temp->offsets.weight1     = sgsdd_temp->offsets.bias2 + num_neurons;
268     sgsdd_temp->offsets.weight2     = sgsdd_temp->offsets.weight1 + num_neurons * num_inputs;
269     sgsdd_temp->offsets.out_scaling = sgsdd_temp->offsets.weight2 + num_inputs * num_neurons;
270     PetscInt total_num_scalars      = sgsdd_temp->offsets.out_scaling + 2 * num_outputs;
271     sgsdd_temp->total_bytes         = sizeof(*sgsdd_ctx) + total_num_scalars * sizeof(sgsdd_ctx->data[0]);
272     PetscCall(PetscMalloc(sgsdd_temp->total_bytes, &sgsdd_ctx));
273     *sgsdd_ctx = *sgsdd_temp;
274     PetscCall(PetscFree(sgsdd_temp));
275   }
276 
277   PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "b1.dat"));
278   PetscCall(PHASTADatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.bias1]));
279   PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "b2.dat"));
280   PetscCall(PHASTADatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.bias2]));
281   PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "OutScaling.dat"));
282   PetscCall(PHASTADatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.out_scaling]));
283 
284   {
285     PetscCall(PetscMalloc1(num_inputs * num_neurons, &temp));
286     PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "w1.dat"));
287     PetscCall(PHASTADatFileReadToArrayReal(comm, file_path, temp));
288     PetscCall(TransposeMatrix(temp, &sgsdd_ctx->data[sgsdd_ctx->offsets.weight1], num_inputs, num_neurons));
289     PetscCall(PetscFree(temp));
290   }
291   {
292     PetscCall(PetscMalloc1(num_outputs * num_neurons, &temp));
293     PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "w2.dat"));
294     PetscCall(PHASTADatFileReadToArrayReal(comm, file_path, temp));
295     PetscCall(TransposeMatrix(temp, &sgsdd_ctx->data[sgsdd_ctx->offsets.weight2], num_neurons, num_outputs));
296     PetscCall(PetscFree(temp));
297   }
298 
299   PetscCall(PetscFree(*psgsdd_ctx));
300   *psgsdd_ctx = sgsdd_ctx;
301   PetscFunctionReturn(PETSC_SUCCESS);
302 }
303 
304 PetscErrorCode SGS_DD_ModelSetup(Ceed ceed, User user, CeedData ceed_data, ProblemData *problem) {
305   PetscReal                alpha = 0;
306   SGS_DDModelContext       sgsdd_ctx;
307   MPI_Comm                 comm                           = user->comm;
308   char                     sgs_dd_dir[PETSC_MAX_PATH_LEN] = "./dd_sgs_parameters";
309   SGS_DD_ModelSetupData    sgs_dd_setup_data;
310   NewtonianIdealGasContext gas;
311   PetscFunctionBeginUser;
312 
313   PetscCall(VelocityGradientProjectionSetup(ceed, user, ceed_data, problem));
314 
315   PetscCall(PetscNew(&sgsdd_ctx));
316 
317   PetscOptionsBegin(comm, NULL, "SGS Data-Driven Model Options", NULL);
318   PetscCall(PetscOptionsReal("-sgs_model_dd_leakyrelu_alpha", "Slope parameter for Leaky ReLU activation function", NULL, alpha, &alpha, NULL));
319   PetscCall(PetscOptionsString("-sgs_model_dd_parameter_dir", "Path to directory with model parameters (weights, biases, etc.)", NULL, sgs_dd_dir,
320                                sgs_dd_dir, sizeof(sgs_dd_dir), NULL));
321   PetscOptionsEnd();
322 
323   sgsdd_ctx->num_layers  = 1;
324   sgsdd_ctx->num_inputs  = 6;
325   sgsdd_ctx->num_outputs = 6;
326   sgsdd_ctx->num_neurons = 20;
327   sgsdd_ctx->alpha       = alpha;
328 
329   PetscCall(SGS_DD_ModelContextFill(comm, sgs_dd_dir, &sgsdd_ctx));
330 
331   // -- Create DM for storing SGS tensor at nodes
332   PetscCall(PetscNew(&user->sgs_dd_data));
333   PetscCall(SGS_DD_ModelCreateDM(user->dm, &user->sgs_dd_data->dm_sgs, user->app_ctx->degree, &user->sgs_dd_data->num_comp_sgs));
334 
335   PetscCall(PetscNew(&sgs_dd_setup_data));
336 
337   CeedQFunctionContextGetDataRead(problem->apply_vol_ifunction.qfunction_context, CEED_MEM_HOST, &gas);
338   sgsdd_ctx->gas = *gas;
339   CeedQFunctionContextRestoreDataRead(problem->apply_vol_ifunction.qfunction_context, &gas);
340   CeedQFunctionContextCreate(user->ceed, &sgs_dd_setup_data->sgsdd_qfctx);
341   CeedQFunctionContextSetData(sgs_dd_setup_data->sgsdd_qfctx, CEED_MEM_HOST, CEED_USE_POINTER, sgsdd_ctx->total_bytes, sgsdd_ctx);
342   CeedQFunctionContextSetDataDestroy(sgs_dd_setup_data->sgsdd_qfctx, CEED_MEM_HOST, FreeContextPetsc);
343 
344   // -- Compute and store anisotropy tensor
345   PetscCall(GridAnisotropyTensorProjectionSetupApply(ceed, user, ceed_data, &sgs_dd_setup_data->elem_restr_grid_aniso,
346                                                      &sgs_dd_setup_data->grid_aniso_ceed));
347 
348   // -- Create Nodal Evaluation Operator
349   PetscCall(SGS_DD_ModelSetupNodalEvaluation(ceed, user, ceed_data, sgs_dd_setup_data));
350 
351   // -- Create Operator to evalutate residual of SGS stress
352   PetscCall(SGS_ModelSetupNodalIFunction(ceed, user, ceed_data, sgs_dd_setup_data));
353 
354   PetscCall(SGS_DD_ModelSetupDataDestroy(sgs_dd_setup_data));
355   PetscFunctionReturn(PETSC_SUCCESS);
356 }
357 
358 PetscErrorCode SGS_DD_DataDestroy(SGS_DD_Data sgs_dd_data) {
359   PetscFunctionBeginUser;
360   if (!sgs_dd_data) PetscFunctionReturn(PETSC_SUCCESS);
361 
362   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