xref: /honee/problems/sgs_dd_model.c (revision 4b0f61114f8a670f88ef9e2d9c70072193dd377a)
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(0);
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(0);
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, dim, num_qpts_1d, num_comp_grad_velo, num_comp_x, num_comp_grid_aniso;
70   CeedVector          multiplicity, inv_multiplicity;
71   CeedElemRestriction elem_restr_inv_multiplicity, elem_restr_grad_velo, elem_restr_sgs;
72 
73   PetscFunctionBeginUser;
74   PetscCall(DMGetDimension(user->dm, &dim));
75   CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_x, &num_comp_x);
76   CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_q, &num_comp_q);
77   CeedElemRestrictionGetNumComponents(sgs_dd_setup_data->elem_restr_grid_aniso, &num_comp_grid_aniso);
78   CeedElemRestrictionGetNumElements(ceed_data->elem_restr_q, &num_elem);
79   CeedElemRestrictionGetElementSize(ceed_data->elem_restr_q, &elem_size);
80   CeedBasisGetNumQuadraturePoints1D(ceed_data->basis_q, &num_qpts_1d);
81 
82   {  // Get velocity gradient information
83     CeedOperatorField op_field;
84     CeedOperatorGetFieldByName(user->grad_velo_proj->l2_rhs_ctx->op, "velocity gradient", &op_field);
85     CeedOperatorFieldGetElemRestriction(op_field, &elem_restr_grad_velo);
86     CeedElemRestrictionGetNumComponents(elem_restr_grad_velo, &num_comp_grad_velo);
87   }
88 
89   PetscCall(GetRestrictionForDomain(ceed, sgs_dd_data->dm_sgs, 0, 0, 0, num_qpts_1d, 0, &elem_restr_sgs, NULL, NULL));
90   CeedElemRestrictionCreateVector(elem_restr_sgs, &sgs_dd_data->sgs_nodal_ceed, NULL);
91 
92   // -- Create inverse multiplicity for correcting nodal assembly
93   CeedElemRestrictionCreateVector(ceed_data->elem_restr_q, &multiplicity, NULL);
94   CeedElemRestrictionGetMultiplicity(ceed_data->elem_restr_q, multiplicity);
95   CeedElemRestrictionCreateStrided(ceed, num_elem, elem_size, 1, num_elem * elem_size, CEED_STRIDES_BACKEND, &elem_restr_inv_multiplicity);
96   CeedElemRestrictionCreateVector(elem_restr_inv_multiplicity, &inv_multiplicity, NULL);
97 
98   CeedQFunctionCreateInterior(ceed, 1, InverseMultiplicity, InverseMultiplicity_loc, &qf_multiplicity);
99   CeedQFunctionAddInput(qf_multiplicity, "multiplicity", num_comp_q, CEED_EVAL_NONE);
100   CeedQFunctionAddOutput(qf_multiplicity, "inverse multiplicity", 1, CEED_EVAL_NONE);
101 
102   CeedOperatorCreate(ceed, qf_multiplicity, NULL, NULL, &op_multiplicity);
103   CeedOperatorSetName(op_multiplicity, "SGS DD Model - Create Multiplicity Scaling");
104   CeedOperatorSetField(op_multiplicity, "multiplicity", ceed_data->elem_restr_q, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE);
105   CeedOperatorSetField(op_multiplicity, "inverse multiplicity", elem_restr_inv_multiplicity, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE);
106   CeedOperatorSetNumQuadraturePoints(op_multiplicity, elem_size);
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(0);
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       dim, num_comp_q, num_comp_qd, num_comp_x, num_qpts_1d, num_nodes_1d;
164   CeedQFunction qf_sgs_apply;
165   CeedOperator  op_sgs_apply;
166   CeedBasis     basis_sgs;
167 
168   PetscFunctionBeginUser;
169   PetscCall(DMGetDimension(user->dm, &dim));
170   CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_q, &num_comp_q);
171   CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_qd_i, &num_comp_qd);
172   CeedElemRestrictionGetNumComponents(ceed_data->elem_restr_x, &num_comp_x);
173   CeedBasisGetNumQuadraturePoints1D(ceed_data->basis_q, &num_qpts_1d);
174   CeedBasisGetNumNodes1D(ceed_data->basis_q, &num_nodes_1d);
175 
176   CeedBasisCreateTensorH1Lagrange(ceed, dim, sgs_dd_data->num_comp_sgs, num_nodes_1d, num_qpts_1d, CEED_GAUSS, &basis_sgs);
177 
178   switch (user->phys->state_var) {
179     case STATEVAR_PRIMITIVE:
180       CeedQFunctionCreateInterior(ceed, 1, IFunction_NodalSubgridStress_Prim, IFunction_NodalSubgridStress_Prim_loc, &qf_sgs_apply);
181       break;
182     case STATEVAR_CONSERVATIVE:
183       CeedQFunctionCreateInterior(ceed, 1, IFunction_NodalSubgridStress_Conserv, IFunction_NodalSubgridStress_Conserv_loc, &qf_sgs_apply);
184       break;
185     default:
186       SETERRQ(PetscObjectComm((PetscObject)user->dm), PETSC_ERR_SUP, "Nodal SGS evaluation not available for chosen state variable");
187   }
188 
189   CeedQFunctionSetContext(qf_sgs_apply, sgs_dd_setup_data->sgsdd_qfctx);
190   CeedQFunctionAddInput(qf_sgs_apply, "q", num_comp_q, CEED_EVAL_INTERP);
191   CeedQFunctionAddInput(qf_sgs_apply, "qdata", num_comp_qd, CEED_EVAL_NONE);
192   CeedQFunctionAddInput(qf_sgs_apply, "x", num_comp_x, CEED_EVAL_INTERP);
193   CeedQFunctionAddInput(qf_sgs_apply, "km_sgs", sgs_dd_data->num_comp_sgs, CEED_EVAL_INTERP);
194   CeedQFunctionAddOutput(qf_sgs_apply, "Grad_v", num_comp_q * dim, CEED_EVAL_GRAD);
195 
196   CeedOperatorCreate(ceed, qf_sgs_apply, NULL, NULL, &op_sgs_apply);
197   CeedOperatorSetField(op_sgs_apply, "q", ceed_data->elem_restr_q, ceed_data->basis_q, CEED_VECTOR_ACTIVE);
198   CeedOperatorSetField(op_sgs_apply, "qdata", ceed_data->elem_restr_qd_i, CEED_BASIS_COLLOCATED, ceed_data->q_data);
199   CeedOperatorSetField(op_sgs_apply, "x", ceed_data->elem_restr_x, ceed_data->basis_x, ceed_data->x_coord);
200   CeedOperatorSetField(op_sgs_apply, "km_sgs", sgs_dd_setup_data->elem_restr_sgs, basis_sgs, sgs_dd_data->sgs_nodal_ceed);
201   CeedOperatorSetField(op_sgs_apply, "Grad_v", ceed_data->elem_restr_q, ceed_data->basis_q, CEED_VECTOR_ACTIVE);
202 
203   PetscCall(
204       OperatorApplyContextCreate(user->dm, user->dm, ceed, op_sgs_apply, user->q_ceed, user->g_ceed, NULL, NULL, &sgs_dd_data->op_sgs_apply_ctx));
205 
206   CeedOperatorDestroy(&op_sgs_apply);
207   CeedQFunctionDestroy(&qf_sgs_apply);
208   PetscFunctionReturn(0);
209 }
210 
211 // @brief Calculate and add data-driven SGS residual to the global residual
212 PetscErrorCode SGS_DD_ModelApplyIFunction(User user, const Vec Q_loc, Vec G_loc) {
213   SGS_DD_Data  sgs_dd_data = user->sgs_dd_data;
214   Vec          VelocityGradient, SGSNodal_loc;
215   PetscMemType sgs_nodal_mem_type, q_mem_type;
216 
217   PetscFunctionBeginUser;
218   PetscCall(DMGetGlobalVector(user->grad_velo_proj->dm, &VelocityGradient));
219   PetscCall(VelocityGradientProjectionApply(user, Q_loc, VelocityGradient));
220 
221   // -- Compute Nodal SGS tensor
222   PetscCall(DMGetLocalVector(sgs_dd_data->dm_sgs, &SGSNodal_loc));
223   PetscCall(VecP2C(Q_loc, &q_mem_type, user->q_ceed));  // q_ceed is an implicit input
224 
225   PetscCall(ApplyCeedOperatorGlobalToLocal(VelocityGradient, SGSNodal_loc, sgs_dd_data->op_nodal_evaluation_ctx));
226 
227   PetscCall(VecC2P(user->q_ceed, q_mem_type, Q_loc));
228   PetscCall(VecP2C(SGSNodal_loc, &sgs_nodal_mem_type, sgs_dd_data->sgs_nodal_ceed));  // sgs_nodal_ceed is an implicit input
229 
230   // -- Compute contribution of the SGS stress
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 
238   PetscFunctionReturn(0);
239 }
240 
241 // @brief B = A^T, A is NxM, B is MxN
242 PetscErrorCode TransposeMatrix(const PetscScalar *A, PetscScalar *B, const PetscInt N, const PetscInt M) {
243   PetscFunctionBeginUser;
244   for (PetscInt i = 0; i < N; i++) {
245     for (PetscInt j = 0; j < M; j++) {
246       B[j * N + i] = A[i * M + j];
247     }
248   }
249   PetscFunctionReturn(0);
250 }
251 
252 // @brief Read neural network coefficients from file and put into context struct
253 PetscErrorCode SGS_DD_ModelContextFill(MPI_Comm comm, char data_dir[PETSC_MAX_PATH_LEN], SGS_DDModelContext *psgsdd_ctx) {
254   SGS_DDModelContext sgsdd_ctx;
255   PetscInt           num_inputs = (*psgsdd_ctx)->num_inputs, num_outputs = (*psgsdd_ctx)->num_outputs, num_neurons = (*psgsdd_ctx)->num_neurons;
256   char               file_path[PETSC_MAX_PATH_LEN];
257   PetscScalar       *temp;
258 
259   PetscFunctionBeginUser;
260   {
261     SGS_DDModelContext sgsdd_temp;
262     PetscCall(PetscNew(&sgsdd_temp));
263     *sgsdd_temp                     = **psgsdd_ctx;
264     sgsdd_temp->offsets.bias1       = 0;
265     sgsdd_temp->offsets.bias2       = sgsdd_temp->offsets.bias1 + num_neurons;
266     sgsdd_temp->offsets.weight1     = sgsdd_temp->offsets.bias2 + num_neurons;
267     sgsdd_temp->offsets.weight2     = sgsdd_temp->offsets.weight1 + num_neurons * num_inputs;
268     sgsdd_temp->offsets.out_scaling = sgsdd_temp->offsets.weight2 + num_inputs * num_neurons;
269     PetscInt total_num_scalars      = sgsdd_temp->offsets.out_scaling + 2 * num_outputs;
270     sgsdd_temp->total_bytes         = sizeof(*sgsdd_ctx) + total_num_scalars * sizeof(sgsdd_ctx->data[0]);
271     PetscCall(PetscMalloc(sgsdd_temp->total_bytes, &sgsdd_ctx));
272     *sgsdd_ctx = *sgsdd_temp;
273     PetscCall(PetscFree(sgsdd_temp));
274   }
275 
276   PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "b1.dat"));
277   PetscCall(PHASTADatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.bias1]));
278   PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "b2.dat"));
279   PetscCall(PHASTADatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.bias2]));
280   PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "OutScaling.dat"));
281   PetscCall(PHASTADatFileReadToArrayReal(comm, file_path, &sgsdd_ctx->data[sgsdd_ctx->offsets.out_scaling]));
282 
283   {
284     PetscCall(PetscMalloc1(num_inputs * num_neurons, &temp));
285     PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "w1.dat"));
286     PetscCall(PHASTADatFileReadToArrayReal(comm, file_path, temp));
287     PetscCall(TransposeMatrix(temp, &sgsdd_ctx->data[sgsdd_ctx->offsets.weight1], num_inputs, num_neurons));
288     PetscCall(PetscFree(temp));
289   }
290   {
291     PetscCall(PetscMalloc1(num_outputs * num_neurons, &temp));
292     PetscCall(PetscSNPrintf(file_path, sizeof file_path, "%s/%s", data_dir, "w2.dat"));
293     PetscCall(PHASTADatFileReadToArrayReal(comm, file_path, temp));
294     PetscCall(TransposeMatrix(temp, &sgsdd_ctx->data[sgsdd_ctx->offsets.weight2], num_neurons, num_outputs));
295     PetscCall(PetscFree(temp));
296   }
297 
298   PetscCall(PetscFree(*psgsdd_ctx));
299   *psgsdd_ctx = sgsdd_ctx;
300   PetscFunctionReturn(0);
301 }
302 
303 PetscErrorCode SGS_DD_ModelSetup(Ceed ceed, User user, CeedData ceed_data, ProblemData *problem) {
304   PetscReal                alpha = 0;
305   SGS_DDModelContext       sgsdd_ctx;
306   MPI_Comm                 comm                           = user->comm;
307   char                     sgs_dd_dir[PETSC_MAX_PATH_LEN] = "./dd_sgs_parameters";
308   SGS_DD_ModelSetupData    sgs_dd_setup_data;
309   NewtonianIdealGasContext gas;
310   PetscFunctionBeginUser;
311 
312   PetscCall(VelocityGradientProjectionSetup(ceed, user, ceed_data, problem));
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(SGS_DD_ModelContextFill(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(SGS_DD_ModelCreateDM(user->dm, &user->sgs_dd_data->dm_sgs, user->app_ctx->degree, &user->sgs_dd_data->num_comp_sgs));
333 
334   PetscCall(PetscNew(&sgs_dd_setup_data));
335 
336   CeedQFunctionContextGetDataRead(problem->apply_vol_ifunction.qfunction_context, CEED_MEM_HOST, &gas);
337   sgsdd_ctx->gas = *gas;
338   CeedQFunctionContextRestoreDataRead(problem->apply_vol_ifunction.qfunction_context, &gas);
339   CeedQFunctionContextCreate(user->ceed, &sgs_dd_setup_data->sgsdd_qfctx);
340   CeedQFunctionContextSetData(sgs_dd_setup_data->sgsdd_qfctx, CEED_MEM_HOST, CEED_USE_POINTER, sgsdd_ctx->total_bytes, sgsdd_ctx);
341   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(0);
355 }
356 
357 PetscErrorCode SGS_DD_DataDestroy(SGS_DD_Data sgs_dd_data) {
358   PetscFunctionBeginUser;
359   if (!sgs_dd_data) PetscFunctionReturn(0);
360 
361   CeedVectorDestroy(&sgs_dd_data->sgs_nodal_ceed);
362   PetscCall(OperatorApplyContextDestroy(sgs_dd_data->op_nodal_evaluation_ctx));
363   PetscCall(DMDestroy(&sgs_dd_data->dm_sgs));
364   PetscCall(PetscFree(sgs_dd_data));
365 
366   PetscFunctionReturn(0);
367 }
368