xref: /honee/src/setuplibceed.c (revision 395c96d3a2391aa31fc608e96f797846151d1026)
1 // Copyright (c) 2017-2022, 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 /// @file
9 /// Setup libCEED for Navier-Stokes example using PETSc
10 
11 #include "../navierstokes.h"
12 
13 // Utility function - essential BC dofs are encoded in closure indices as -(i+1).
14 PetscInt Involute(PetscInt i) {
15   return i >= 0 ? i : -(i+1);
16 }
17 
18 // Utility function to create local CEED restriction
19 PetscErrorCode CreateRestrictionFromPlex(Ceed ceed, DM dm, CeedInt height,
20     DMLabel domain_label, CeedInt value, CeedElemRestriction *elem_restr) {
21   PetscInt num_elem, elem_size, num_dof, num_comp, *elem_restr_offsets;
22   PetscErrorCode ierr;
23 
24   PetscFunctionBeginUser;
25   ierr = DMPlexGetLocalOffsets(dm, domain_label, value, height, 0, &num_elem,
26                                &elem_size, &num_comp, &num_dof, &elem_restr_offsets);
27   CHKERRQ(ierr);
28 
29   CeedElemRestrictionCreate(ceed, num_elem, elem_size, num_comp,
30                             1, num_dof, CEED_MEM_HOST, CEED_COPY_VALUES,
31                             elem_restr_offsets, elem_restr);
32   ierr = PetscFree(elem_restr_offsets); CHKERRQ(ierr);
33 
34   PetscFunctionReturn(0);
35 }
36 
37 // Utility function to get Ceed Restriction for each domain
38 PetscErrorCode GetRestrictionForDomain(Ceed ceed, DM dm, CeedInt height,
39                                        DMLabel domain_label, PetscInt value,
40                                        CeedInt Q, CeedInt q_data_size,
41                                        CeedElemRestriction *elem_restr_q,
42                                        CeedElemRestriction *elem_restr_x,
43                                        CeedElemRestriction *elem_restr_qd_i) {
44   DM             dm_coord;
45   CeedInt        dim, loc_num_elem;
46   CeedInt        Q_dim;
47   CeedElemRestriction elem_restr_tmp;
48   PetscErrorCode ierr;
49   PetscFunctionBeginUser;
50 
51   ierr = DMGetDimension(dm, &dim); CHKERRQ(ierr);
52   dim -= height;
53   Q_dim = CeedIntPow(Q, dim);
54   ierr = CreateRestrictionFromPlex(ceed, dm, height, domain_label, value,
55                                    &elem_restr_tmp);
56   CHKERRQ(ierr);
57   if (elem_restr_q) *elem_restr_q = elem_restr_tmp;
58   if (elem_restr_x) {
59     ierr = DMGetCoordinateDM(dm, &dm_coord); CHKERRQ(ierr);
60     ierr = DMPlexSetClosurePermutationTensor(dm_coord, PETSC_DETERMINE, NULL);
61     CHKERRQ(ierr);
62     ierr = CreateRestrictionFromPlex(ceed, dm_coord, height, domain_label, value,
63                                      elem_restr_x);
64     CHKERRQ(ierr);
65   }
66   if (elem_restr_qd_i) {
67     CeedElemRestrictionGetNumElements(elem_restr_tmp, &loc_num_elem);
68     CeedElemRestrictionCreateStrided(ceed, loc_num_elem, Q_dim,
69                                      q_data_size, q_data_size*loc_num_elem*Q_dim,
70                                      CEED_STRIDES_BACKEND, elem_restr_qd_i);
71   }
72   if (!elem_restr_q) CeedElemRestrictionDestroy(&elem_restr_tmp);
73   PetscFunctionReturn(0);
74 }
75 
76 // Utility function to create CEED Composite Operator for the entire domain
77 PetscErrorCode CreateOperatorForDomain(Ceed ceed, DM dm, SimpleBC bc,
78                                        CeedData ceed_data, Physics phys,
79                                        CeedOperator op_apply_vol, CeedInt height,
80                                        CeedInt P_sur, CeedInt Q_sur, CeedInt q_data_size_sur,
81                                        CeedOperator *op_apply) {
82   //CeedInt        dim;
83   DMLabel        domain_label;
84   PetscErrorCode ierr;
85   PetscFunctionBeginUser;
86 
87   // Create Composite Operaters
88   CeedCompositeOperatorCreate(ceed, op_apply);
89 
90   // --Apply Sub-Operator for the volume
91   CeedCompositeOperatorAddSub(*op_apply, op_apply_vol);
92 
93   // -- Create Sub-Operator for in/outflow BCs
94   if (phys->has_neumann || 1) {
95     // --- Setup
96     ierr = DMGetLabel(dm, "Face Sets", &domain_label); CHKERRQ(ierr);
97     //ierr = DMGetDimension(dm, &dim); CHKERRQ(ierr);
98 
99     // --- Get number of quadrature points for the boundaries
100     CeedInt num_qpts_sur;
101     CeedBasisGetNumQuadraturePoints(ceed_data->basis_q_sur, &num_qpts_sur);
102 
103     // --- Create Sub-Operator for inflow boundaries
104     for (CeedInt i=0; i < bc->num_inflow; i++) {
105       CeedVector          q_data_sur;
106       CeedOperator        op_setup_sur, op_apply_inflow;
107       CeedElemRestriction elem_restr_x_sur, elem_restr_q_sur, elem_restr_qd_i_sur;
108 
109       // ---- CEED Restriction
110       ierr = GetRestrictionForDomain(ceed, dm, height, domain_label, bc->inflows[i],
111                                      Q_sur, q_data_size_sur, &elem_restr_q_sur, &elem_restr_x_sur,
112                                      &elem_restr_qd_i_sur);
113       CHKERRQ(ierr);
114 
115       // ---- CEED Vector
116       PetscInt loc_num_elem_sur;
117       CeedElemRestrictionGetNumElements(elem_restr_q_sur, &loc_num_elem_sur);
118       CeedVectorCreate(ceed, q_data_size_sur*loc_num_elem_sur*num_qpts_sur,
119                        &q_data_sur);
120 
121       // ---- CEED Operator
122       // ----- CEED Operator for Setup (geometric factors)
123       CeedOperatorCreate(ceed, ceed_data->qf_setup_sur, NULL, NULL, &op_setup_sur);
124       CeedOperatorSetField(op_setup_sur, "dx", elem_restr_x_sur,
125                            ceed_data->basis_x_sur, CEED_VECTOR_ACTIVE);
126       CeedOperatorSetField(op_setup_sur, "weight", CEED_ELEMRESTRICTION_NONE,
127                            ceed_data->basis_x_sur, CEED_VECTOR_NONE);
128       CeedOperatorSetField(op_setup_sur, "surface qdata", elem_restr_qd_i_sur,
129                            CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE);
130 
131       // ----- CEED Operator for Physics
132       CeedOperatorCreate(ceed, ceed_data->qf_apply_inflow, NULL, NULL,
133                          &op_apply_inflow);
134       CeedOperatorSetField(op_apply_inflow, "q", elem_restr_q_sur,
135                            ceed_data->basis_q_sur, CEED_VECTOR_ACTIVE);
136       CeedOperatorSetField(op_apply_inflow, "surface qdata", elem_restr_qd_i_sur,
137                            CEED_BASIS_COLLOCATED, q_data_sur);
138       CeedOperatorSetField(op_apply_inflow, "x", elem_restr_x_sur,
139                            ceed_data->basis_x_sur, ceed_data->x_coord);
140       CeedOperatorSetField(op_apply_inflow, "v", elem_restr_q_sur,
141                            ceed_data->basis_q_sur, CEED_VECTOR_ACTIVE);
142 
143       // ----- Apply CEED operator for Setup
144       CeedOperatorApply(op_setup_sur, ceed_data->x_coord, q_data_sur,
145                         CEED_REQUEST_IMMEDIATE);
146 
147       // ----- Apply Sub-Operator for Physics
148       CeedCompositeOperatorAddSub(*op_apply, op_apply_inflow);
149 
150       // ----- Cleanup
151       CeedVectorDestroy(&q_data_sur);
152       CeedElemRestrictionDestroy(&elem_restr_q_sur);
153       CeedElemRestrictionDestroy(&elem_restr_x_sur);
154       CeedElemRestrictionDestroy(&elem_restr_qd_i_sur);
155       CeedOperatorDestroy(&op_setup_sur);
156       CeedOperatorDestroy(&op_apply_inflow);
157     }
158 
159     // --- Create Sub-Operator for outflow boundaries
160     for (CeedInt i=0; i < bc->num_outflow; i++) {
161       CeedVector          q_data_sur;
162       CeedOperator        op_setup_sur, op_apply_outflow;
163       CeedElemRestriction elem_restr_x_sur, elem_restr_q_sur, elem_restr_qd_i_sur;
164 
165       // ---- CEED Restriction
166       ierr = GetRestrictionForDomain(ceed, dm, height, domain_label, bc->outflows[i],
167                                      Q_sur, q_data_size_sur, &elem_restr_q_sur, &elem_restr_x_sur,
168                                      &elem_restr_qd_i_sur);
169       CHKERRQ(ierr);
170 
171       // ---- CEED Vector
172       PetscInt loc_num_elem_sur;
173       CeedElemRestrictionGetNumElements(elem_restr_q_sur, &loc_num_elem_sur);
174       CeedVectorCreate(ceed, q_data_size_sur*loc_num_elem_sur*num_qpts_sur,
175                        &q_data_sur);
176 
177       // ---- CEED Operator
178       // ----- CEED Operator for Setup (geometric factors)
179       CeedOperatorCreate(ceed, ceed_data->qf_setup_sur, NULL, NULL, &op_setup_sur);
180       CeedOperatorSetField(op_setup_sur, "dx", elem_restr_x_sur,
181                            ceed_data->basis_x_sur, CEED_VECTOR_ACTIVE);
182       CeedOperatorSetField(op_setup_sur, "weight", CEED_ELEMRESTRICTION_NONE,
183                            ceed_data->basis_x_sur, CEED_VECTOR_NONE);
184       CeedOperatorSetField(op_setup_sur, "surface qdata", elem_restr_qd_i_sur,
185                            CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE);
186 
187       // ----- CEED Operator for Physics
188       CeedOperatorCreate(ceed, ceed_data->qf_apply_outflow, NULL, NULL,
189                          &op_apply_outflow);
190       CeedOperatorSetField(op_apply_outflow, "q", elem_restr_q_sur,
191                            ceed_data->basis_q_sur, CEED_VECTOR_ACTIVE);
192       CeedOperatorSetField(op_apply_outflow, "surface qdata", elem_restr_qd_i_sur,
193                            CEED_BASIS_COLLOCATED, q_data_sur);
194       CeedOperatorSetField(op_apply_outflow, "x", elem_restr_x_sur,
195                            ceed_data->basis_x_sur, ceed_data->x_coord);
196       CeedOperatorSetField(op_apply_outflow, "v", elem_restr_q_sur,
197                            ceed_data->basis_q_sur, CEED_VECTOR_ACTIVE);
198 
199       // ----- Apply CEED operator for Setup
200       CeedOperatorApply(op_setup_sur, ceed_data->x_coord, q_data_sur,
201                         CEED_REQUEST_IMMEDIATE);
202 
203       // ----- Apply Sub-Operator for Physics
204       CeedCompositeOperatorAddSub(*op_apply, op_apply_outflow);
205 
206       // ----- Cleanup
207       CeedVectorDestroy(&q_data_sur);
208       CeedElemRestrictionDestroy(&elem_restr_q_sur);
209       CeedElemRestrictionDestroy(&elem_restr_x_sur);
210       CeedElemRestrictionDestroy(&elem_restr_qd_i_sur);
211       CeedOperatorDestroy(&op_setup_sur);
212       CeedOperatorDestroy(&op_apply_outflow);
213     }
214   }
215 
216   // ----- Get Context Labels for Operator
217   CeedOperatorContextGetFieldLabel(*op_apply, "solution time",
218                                    &phys->solution_time_label);
219   CeedOperatorContextGetFieldLabel(*op_apply, "timestep size",
220                                    &phys->timestep_size_label);
221 
222   PetscFunctionReturn(0);
223 }
224 
225 PetscErrorCode SetupLibceed(Ceed ceed, CeedData ceed_data, DM dm, User user,
226                             AppCtx app_ctx, ProblemData *problem, SimpleBC bc) {
227   PetscErrorCode ierr;
228   PetscFunctionBeginUser;
229 
230   // *****************************************************************************
231   // Set up CEED objects for the interior domain (volume)
232   // *****************************************************************************
233   const PetscInt num_comp_q      = 5;
234   const CeedInt  dim             = problem->dim,
235                  num_comp_x      = problem->dim,
236                  q_data_size_vol = problem->q_data_size_vol,
237                  P               = app_ctx->degree + 1,
238                  Q               = P + app_ctx->q_extra;
239 
240   // -----------------------------------------------------------------------------
241   // CEED Bases
242   // -----------------------------------------------------------------------------
243   CeedBasisCreateTensorH1Lagrange(ceed, dim, num_comp_q, P, Q, CEED_GAUSS,
244                                   &ceed_data->basis_q);
245   CeedBasisCreateTensorH1Lagrange(ceed, dim, num_comp_x, 2, Q, CEED_GAUSS,
246                                   &ceed_data->basis_x);
247   CeedBasisCreateTensorH1Lagrange(ceed, dim, num_comp_x, 2, P,
248                                   CEED_GAUSS_LOBATTO, &ceed_data->basis_xc);
249 
250   // -----------------------------------------------------------------------------
251   // CEED Restrictions
252   // -----------------------------------------------------------------------------
253   // -- Create restriction
254   ierr = GetRestrictionForDomain(ceed, dm, 0, 0, 0, Q, q_data_size_vol,
255                                  &ceed_data->elem_restr_q, &ceed_data->elem_restr_x,
256                                  &ceed_data->elem_restr_qd_i); CHKERRQ(ierr);
257   // -- Create E vectors
258   CeedElemRestrictionCreateVector(ceed_data->elem_restr_q, &user->q_ceed, NULL);
259   CeedElemRestrictionCreateVector(ceed_data->elem_restr_q, &user->q_dot_ceed,
260                                   NULL);
261   CeedElemRestrictionCreateVector(ceed_data->elem_restr_q, &user->g_ceed, NULL);
262 
263   // -----------------------------------------------------------------------------
264   // CEED QFunctions
265   // -----------------------------------------------------------------------------
266   // -- Create QFunction for quadrature data
267   CeedQFunctionCreateInterior(ceed, 1, problem->setup_vol.qfunction,
268                               problem->setup_vol.qfunction_loc,
269                               &ceed_data->qf_setup_vol);
270   if (problem->setup_vol.qfunction_context) {
271     CeedQFunctionSetContext(ceed_data->qf_setup_vol,
272                             problem->setup_vol.qfunction_context);
273     CeedQFunctionContextDestroy(&problem->setup_vol.qfunction_context);
274   }
275   CeedQFunctionAddInput(ceed_data->qf_setup_vol, "dx", num_comp_x*dim,
276                         CEED_EVAL_GRAD);
277   CeedQFunctionAddInput(ceed_data->qf_setup_vol, "weight", 1, CEED_EVAL_WEIGHT);
278   CeedQFunctionAddOutput(ceed_data->qf_setup_vol, "qdata", q_data_size_vol,
279                          CEED_EVAL_NONE);
280 
281   // -- Create QFunction for ICs
282   CeedQFunctionCreateInterior(ceed, 1, problem->ics.qfunction,
283                               problem->ics.qfunction_loc,
284                               &ceed_data->qf_ics);
285   CeedQFunctionSetContext(ceed_data->qf_ics, problem->ics.qfunction_context);
286   CeedQFunctionContextDestroy(&problem->ics.qfunction_context);
287   CeedQFunctionAddInput(ceed_data->qf_ics, "x", num_comp_x, CEED_EVAL_INTERP);
288   CeedQFunctionAddOutput(ceed_data->qf_ics, "q0", num_comp_q, CEED_EVAL_NONE);
289 
290   // -- Create QFunction for RHS
291   if (problem->apply_vol_rhs.qfunction) {
292     CeedQFunctionCreateInterior(ceed, 1, problem->apply_vol_rhs.qfunction,
293                                 problem->apply_vol_rhs.qfunction_loc, &ceed_data->qf_rhs_vol);
294     CeedQFunctionSetContext(ceed_data->qf_rhs_vol,
295                             problem->apply_vol_rhs.qfunction_context);
296     CeedQFunctionContextDestroy(&problem->apply_vol_rhs.qfunction_context);
297     CeedQFunctionAddInput(ceed_data->qf_rhs_vol, "q", num_comp_q, CEED_EVAL_INTERP);
298     CeedQFunctionAddInput(ceed_data->qf_rhs_vol, "dq", num_comp_q*dim,
299                           CEED_EVAL_GRAD);
300     CeedQFunctionAddInput(ceed_data->qf_rhs_vol, "qdata", q_data_size_vol,
301                           CEED_EVAL_NONE);
302     CeedQFunctionAddInput(ceed_data->qf_rhs_vol, "x", num_comp_x, CEED_EVAL_INTERP);
303     CeedQFunctionAddOutput(ceed_data->qf_rhs_vol, "v", num_comp_q,
304                            CEED_EVAL_INTERP);
305     CeedQFunctionAddOutput(ceed_data->qf_rhs_vol, "dv", num_comp_q*dim,
306                            CEED_EVAL_GRAD);
307   }
308 
309   // -- Create QFunction for IFunction
310   if (problem->apply_vol_ifunction.qfunction) {
311     CeedQFunctionCreateInterior(ceed, 1, problem->apply_vol_ifunction.qfunction,
312                                 problem->apply_vol_ifunction.qfunction_loc, &ceed_data->qf_ifunction_vol);
313     CeedQFunctionSetContext(ceed_data->qf_ifunction_vol,
314                             problem->apply_vol_ifunction.qfunction_context);
315     CeedQFunctionContextDestroy(&problem->apply_vol_ifunction.qfunction_context);
316     CeedQFunctionAddInput(ceed_data->qf_ifunction_vol, "q", num_comp_q,
317                           CEED_EVAL_INTERP);
318     CeedQFunctionAddInput(ceed_data->qf_ifunction_vol, "dq", num_comp_q*dim,
319                           CEED_EVAL_GRAD);
320     CeedQFunctionAddInput(ceed_data->qf_ifunction_vol, "q dot", num_comp_q,
321                           CEED_EVAL_INTERP);
322     CeedQFunctionAddInput(ceed_data->qf_ifunction_vol, "qdata", q_data_size_vol,
323                           CEED_EVAL_NONE);
324     CeedQFunctionAddInput(ceed_data->qf_ifunction_vol, "x", num_comp_x,
325                           CEED_EVAL_INTERP);
326     CeedQFunctionAddOutput(ceed_data->qf_ifunction_vol, "v", num_comp_q,
327                            CEED_EVAL_INTERP);
328     CeedQFunctionAddOutput(ceed_data->qf_ifunction_vol, "dv", num_comp_q*dim,
329                            CEED_EVAL_GRAD);
330   }
331 
332   // ---------------------------------------------------------------------------
333   // Element coordinates
334   // ---------------------------------------------------------------------------
335   // -- Create CEED vector
336   CeedElemRestrictionCreateVector(ceed_data->elem_restr_x, &ceed_data->x_coord,
337                                   NULL);
338 
339   // -- Copy PETSc vector in CEED vector
340   Vec               X_loc;
341   const PetscScalar *X_loc_array;
342   ierr = DMGetCoordinatesLocal(dm, &X_loc); CHKERRQ(ierr);
343   ierr = VecScale(X_loc, problem->dm_scale); CHKERRQ(ierr);
344   ierr = VecGetArrayRead(X_loc, &X_loc_array); CHKERRQ(ierr);
345   CeedVectorSetArray(ceed_data->x_coord, CEED_MEM_HOST, CEED_COPY_VALUES,
346                      (PetscScalar *)X_loc_array);
347   ierr = VecRestoreArrayRead(X_loc, &X_loc_array); CHKERRQ(ierr);
348 
349   // -----------------------------------------------------------------------------
350   // CEED vectors
351   // -----------------------------------------------------------------------------
352   // -- Create CEED vector for geometric data
353   CeedInt  num_qpts_vol;
354   PetscInt loc_num_elem_vol;
355   CeedBasisGetNumQuadraturePoints(ceed_data->basis_q, &num_qpts_vol);
356   CeedElemRestrictionGetNumElements(ceed_data->elem_restr_q, &loc_num_elem_vol);
357   CeedVectorCreate(ceed, q_data_size_vol*loc_num_elem_vol*num_qpts_vol,
358                    &ceed_data->q_data);
359 
360   // -----------------------------------------------------------------------------
361   // CEED Operators
362   // -----------------------------------------------------------------------------
363   // -- Create CEED operator for quadrature data
364   CeedOperatorCreate(ceed, ceed_data->qf_setup_vol, NULL, NULL,
365                      &ceed_data->op_setup_vol);
366   CeedOperatorSetField(ceed_data->op_setup_vol, "dx", ceed_data->elem_restr_x,
367                        ceed_data->basis_x, CEED_VECTOR_ACTIVE);
368   CeedOperatorSetField(ceed_data->op_setup_vol, "weight",
369                        CEED_ELEMRESTRICTION_NONE, ceed_data->basis_x, CEED_VECTOR_NONE);
370   CeedOperatorSetField(ceed_data->op_setup_vol, "qdata",
371                        ceed_data->elem_restr_qd_i, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE);
372 
373   // -- Create CEED operator for ICs
374   CeedOperatorCreate(ceed, ceed_data->qf_ics, NULL, NULL, &ceed_data->op_ics);
375   CeedOperatorSetField(ceed_data->op_ics, "x", ceed_data->elem_restr_x,
376                        ceed_data->basis_xc, CEED_VECTOR_ACTIVE);
377   CeedOperatorSetField(ceed_data->op_ics, "q0", ceed_data->elem_restr_q,
378                        CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE);
379   CeedOperatorContextGetFieldLabel(ceed_data->op_ics, "evaluation time",
380                                    &user->phys->ics_time_label);
381 
382   // Create CEED operator for RHS
383   if (ceed_data->qf_rhs_vol) {
384     CeedOperator op;
385     CeedOperatorCreate(ceed, ceed_data->qf_rhs_vol, NULL, NULL, &op);
386     CeedOperatorSetField(op, "q", ceed_data->elem_restr_q, ceed_data->basis_q,
387                          CEED_VECTOR_ACTIVE);
388     CeedOperatorSetField(op, "dq", ceed_data->elem_restr_q, ceed_data->basis_q,
389                          CEED_VECTOR_ACTIVE);
390     CeedOperatorSetField(op, "qdata", ceed_data->elem_restr_qd_i,
391                          CEED_BASIS_COLLOCATED, ceed_data->q_data);
392     CeedOperatorSetField(op, "x", ceed_data->elem_restr_x, ceed_data->basis_x,
393                          ceed_data->x_coord);
394     CeedOperatorSetField(op, "v", ceed_data->elem_restr_q, ceed_data->basis_q,
395                          CEED_VECTOR_ACTIVE);
396     CeedOperatorSetField(op, "dv", ceed_data->elem_restr_q, ceed_data->basis_q,
397                          CEED_VECTOR_ACTIVE);
398     user->op_rhs_vol = op;
399   }
400 
401   // -- CEED operator for IFunction
402   if (ceed_data->qf_ifunction_vol) {
403     CeedOperator op;
404     CeedOperatorCreate(ceed, ceed_data->qf_ifunction_vol, NULL, NULL, &op);
405     CeedOperatorSetField(op, "q", ceed_data->elem_restr_q, ceed_data->basis_q,
406                          CEED_VECTOR_ACTIVE);
407     CeedOperatorSetField(op, "dq", ceed_data->elem_restr_q, ceed_data->basis_q,
408                          CEED_VECTOR_ACTIVE);
409     CeedOperatorSetField(op, "q dot", ceed_data->elem_restr_q, ceed_data->basis_q,
410                          user->q_dot_ceed);
411     CeedOperatorSetField(op, "qdata", ceed_data->elem_restr_qd_i,
412                          CEED_BASIS_COLLOCATED, ceed_data->q_data);
413     CeedOperatorSetField(op, "x", ceed_data->elem_restr_x, ceed_data->basis_x,
414                          ceed_data->x_coord);
415     CeedOperatorSetField(op, "v", ceed_data->elem_restr_q, ceed_data->basis_q,
416                          CEED_VECTOR_ACTIVE);
417     CeedOperatorSetField(op, "dv", ceed_data->elem_restr_q, ceed_data->basis_q,
418                          CEED_VECTOR_ACTIVE);
419     user->op_ifunction_vol = op;
420   }
421 
422   // *****************************************************************************
423   // Set up CEED objects for the exterior domain (surface)
424   // *****************************************************************************
425   CeedInt height  = 1,
426           dim_sur = dim - height,
427           P_sur   = app_ctx->degree + 1,
428           Q_sur   = P_sur + app_ctx->q_extra;
429   const CeedInt q_data_size_sur = problem->q_data_size_sur;
430 
431   // -----------------------------------------------------------------------------
432   // CEED Bases
433   // -----------------------------------------------------------------------------
434   CeedBasisCreateTensorH1Lagrange(ceed, dim_sur, num_comp_q, P_sur, Q_sur,
435                                   CEED_GAUSS, &ceed_data->basis_q_sur);
436   CeedBasisCreateTensorH1Lagrange(ceed, dim_sur, num_comp_x, 2, Q_sur, CEED_GAUSS,
437                                   &ceed_data->basis_x_sur);
438 
439   // -----------------------------------------------------------------------------
440   // CEED QFunctions
441   // -----------------------------------------------------------------------------
442   // -- Create QFunction for quadrature data
443   CeedQFunctionCreateInterior(ceed, 1, problem->setup_sur.qfunction,
444                               problem->setup_sur.qfunction_loc,
445                               &ceed_data->qf_setup_sur);
446   if (problem->setup_sur.qfunction_context) {
447     CeedQFunctionSetContext(ceed_data->qf_setup_sur,
448                             problem->setup_sur.qfunction_context);
449     CeedQFunctionContextDestroy(&problem->setup_sur.qfunction_context);
450   }
451   CeedQFunctionAddInput(ceed_data->qf_setup_sur, "dx", num_comp_x*dim_sur,
452                         CEED_EVAL_GRAD);
453   CeedQFunctionAddInput(ceed_data->qf_setup_sur, "weight", 1, CEED_EVAL_WEIGHT);
454   CeedQFunctionAddOutput(ceed_data->qf_setup_sur, "surface qdata",
455                          q_data_size_sur, CEED_EVAL_NONE);
456 
457   // -- Creat QFunction for inflow boundaries
458   if (problem->apply_inflow.qfunction) {
459     CeedQFunctionCreateInterior(ceed, 1, problem->apply_inflow.qfunction,
460                                 problem->apply_inflow.qfunction_loc, &ceed_data->qf_apply_inflow);
461     CeedQFunctionSetContext(ceed_data->qf_apply_inflow,
462                             problem->apply_inflow.qfunction_context);
463     CeedQFunctionContextDestroy(&problem->apply_inflow.qfunction_context);
464     CeedQFunctionAddInput(ceed_data->qf_apply_inflow, "q", num_comp_q,
465                           CEED_EVAL_INTERP);
466     CeedQFunctionAddInput(ceed_data->qf_apply_inflow, "surface qdata",
467                           q_data_size_sur, CEED_EVAL_NONE);
468     CeedQFunctionAddInput(ceed_data->qf_apply_inflow, "x", num_comp_x,
469                           CEED_EVAL_INTERP);
470     CeedQFunctionAddOutput(ceed_data->qf_apply_inflow, "v", num_comp_q,
471                            CEED_EVAL_INTERP);
472   }
473 
474   // -- Creat QFunction for outflow boundaries
475   if (problem->apply_outflow.qfunction) {
476     CeedQFunctionCreateInterior(ceed, 1, problem->apply_outflow.qfunction,
477                                 problem->apply_outflow.qfunction_loc, &ceed_data->qf_apply_outflow);
478     CeedQFunctionSetContext(ceed_data->qf_apply_outflow,
479                             problem->apply_outflow.qfunction_context);
480     CeedQFunctionContextDestroy(&problem->apply_outflow.qfunction_context);
481     CeedQFunctionAddInput(ceed_data->qf_apply_outflow, "q", num_comp_q,
482                           CEED_EVAL_INTERP);
483     CeedQFunctionAddInput(ceed_data->qf_apply_outflow, "surface qdata",
484                           q_data_size_sur, CEED_EVAL_NONE);
485     CeedQFunctionAddInput(ceed_data->qf_apply_outflow, "x", num_comp_x,
486                           CEED_EVAL_INTERP);
487     CeedQFunctionAddOutput(ceed_data->qf_apply_outflow, "v", num_comp_q,
488                            CEED_EVAL_INTERP);
489   }
490 
491   // *****************************************************************************
492   // CEED Operator Apply
493   // *****************************************************************************
494   // -- Apply CEED Operator for the geometric data
495   CeedOperatorApply(ceed_data->op_setup_vol, ceed_data->x_coord,
496                     ceed_data->q_data, CEED_REQUEST_IMMEDIATE);
497 
498   // -- Create and apply CEED Composite Operator for the entire domain
499   if (!user->phys->implicit) { // RHS
500     ierr = CreateOperatorForDomain(ceed, dm, bc, ceed_data, user->phys,
501                                    user->op_rhs_vol, height, P_sur, Q_sur,
502                                    q_data_size_sur, &user->op_rhs); CHKERRQ(ierr);
503   } else { // IFunction
504     ierr = CreateOperatorForDomain(ceed, dm, bc, ceed_data, user->phys,
505                                    user->op_ifunction_vol, height, P_sur, Q_sur,
506                                    q_data_size_sur, &user->op_ifunction); CHKERRQ(ierr);
507   }
508 
509   PetscFunctionReturn(0);
510 }
511