xref: /libCEED/examples/fluids/src/strong_boundary_conditions.c (revision 4a56ddfb60d84bfa3b33fa0cd3291fd35d8a4367)
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 #include "../qfunctions/strong_boundary_conditions.h"
9 
10 #include <ceed.h>
11 #include <petscdmplex.h>
12 
13 #include "../navierstokes.h"
14 #include "../problems/stg_shur14.h"
15 
16 PetscErrorCode SetupStrongSTG_Ceed(Ceed ceed, CeedData ceed_data, DM dm, ProblemData *problem, SimpleBC bc, Physics phys, CeedOperator op_strong_bc) {
17   CeedInt num_comp_x = problem->dim, num_comp_q = 5, num_elem, elem_size, stg_data_size = 1, dim_boundary = 2, dXdx_size = num_comp_x * dim_boundary;
18   CeedVector          multiplicity, x_stored, scale_stored, stg_data, dXdx;
19   CeedBasis           basis_x_to_q_sur;
20   CeedElemRestriction elem_restr_x_sur, elem_restr_q_sur, elem_restr_x_stored, elem_restr_scale, elem_restr_stgdata, elem_restr_dXdx;
21   CeedQFunction       qf_setup, qf_strongbc, qf_stgdata;
22   CeedOperator        op_setup, op_strong_bc_sub, op_stgdata;
23   DMLabel             domain_label;
24 
25   PetscFunctionBeginUser;
26   PetscCall(DMGetLabel(dm, "Face Sets", &domain_label));
27 
28   // Basis
29   CeedInt height = 1;
30   PetscCallCeed(ceed, CeedBasisCreateProjection(ceed_data->basis_x_sur, ceed_data->basis_q_sur, &basis_x_to_q_sur));
31   // --- Get number of quadrature points for the boundaries
32   CeedInt num_qpts_sur;
33   PetscCallCeed(ceed, CeedBasisGetNumQuadraturePoints(ceed_data->basis_q_sur, &num_qpts_sur));
34 
35   // Setup QFunction
36   PetscCallCeed(ceed, CeedQFunctionCreateInterior(ceed, 1, SetupStrongBC, SetupStrongBC_loc, &qf_setup));
37   PetscCallCeed(ceed, CeedQFunctionAddInput(qf_setup, "x", num_comp_x, CEED_EVAL_INTERP));
38   PetscCallCeed(ceed, CeedQFunctionAddInput(qf_setup, "dxdX", num_comp_x * dim_boundary, CEED_EVAL_GRAD));
39   PetscCallCeed(ceed, CeedQFunctionAddInput(qf_setup, "multiplicity", num_comp_q, CEED_EVAL_NONE));
40   PetscCallCeed(ceed, CeedQFunctionAddOutput(qf_setup, "x stored", num_comp_x, CEED_EVAL_NONE));
41   PetscCallCeed(ceed, CeedQFunctionAddOutput(qf_setup, "scale", 1, CEED_EVAL_NONE));
42   PetscCallCeed(ceed, CeedQFunctionAddOutput(qf_setup, "dXdx", dXdx_size, CEED_EVAL_NONE));
43 
44   // Setup STG Setup QFunction
45   PetscCall(SetupStrongSTG_PreProcessing(ceed, problem, num_comp_x, stg_data_size, dXdx_size, &qf_stgdata));
46 
47   // Compute contribution on each boundary face
48   for (CeedInt i = 0; i < bc->num_inflow; i++) {
49     // -- Restrictions
50     PetscCall(GetRestrictionForDomain(ceed, dm, height, domain_label, bc->inflows[i], 0, -1, -1, &elem_restr_q_sur, &elem_restr_x_sur, NULL));
51     PetscCallCeed(ceed, CeedElemRestrictionCreateVector(elem_restr_q_sur, &multiplicity, NULL));
52     PetscCallCeed(ceed, CeedElemRestrictionGetMultiplicity(elem_restr_q_sur, multiplicity));
53     PetscCallCeed(ceed, CeedElemRestrictionGetNumElements(elem_restr_q_sur, &num_elem));
54     PetscCallCeed(ceed, CeedElemRestrictionGetElementSize(elem_restr_q_sur, &elem_size));
55 
56     PetscCallCeed(ceed, CeedElemRestrictionCreateStrided(ceed, num_elem, elem_size, num_comp_x, num_elem * elem_size * num_comp_x,
57                                                          CEED_STRIDES_BACKEND, &elem_restr_x_stored));
58     PetscCallCeed(ceed, CeedElemRestrictionCreateVector(elem_restr_x_stored, &x_stored, NULL));
59 
60     PetscCallCeed(ceed,
61                   CeedElemRestrictionCreateStrided(ceed, num_elem, elem_size, 1, num_elem * elem_size, CEED_STRIDES_BACKEND, &elem_restr_scale));
62     PetscCallCeed(ceed, CeedElemRestrictionCreateVector(elem_restr_scale, &scale_stored, NULL));
63 
64     PetscCallCeed(ceed, CeedElemRestrictionCreateStrided(ceed, num_elem, elem_size, stg_data_size, num_elem * elem_size * stg_data_size,
65                                                          CEED_STRIDES_BACKEND, &elem_restr_stgdata));
66     PetscCallCeed(ceed, CeedElemRestrictionCreateVector(elem_restr_stgdata, &stg_data, NULL));
67     PetscCallCeed(ceed, CeedElemRestrictionCreateStrided(ceed, num_elem, elem_size, dXdx_size, num_elem * elem_size * dXdx_size, CEED_STRIDES_BACKEND,
68                                                          &elem_restr_dXdx));
69     PetscCallCeed(ceed, CeedElemRestrictionCreateVector(elem_restr_dXdx, &dXdx, NULL));
70 
71     // -- Setup Operator
72     PetscCallCeed(ceed, CeedOperatorCreate(ceed, qf_setup, NULL, NULL, &op_setup));
73     PetscCallCeed(ceed, CeedOperatorSetName(op_setup, "Precomputed data for strong boundary conditions"));
74     PetscCallCeed(ceed, CeedOperatorSetField(op_setup, "x", elem_restr_x_sur, basis_x_to_q_sur, CEED_VECTOR_ACTIVE));
75     PetscCallCeed(ceed, CeedOperatorSetField(op_setup, "dxdX", elem_restr_x_sur, basis_x_to_q_sur, CEED_VECTOR_ACTIVE));
76     PetscCallCeed(ceed, CeedOperatorSetField(op_setup, "multiplicity", elem_restr_q_sur, CEED_BASIS_COLLOCATED, multiplicity));
77     PetscCallCeed(ceed, CeedOperatorSetField(op_setup, "x stored", elem_restr_x_stored, CEED_BASIS_COLLOCATED, x_stored));
78     PetscCallCeed(ceed, CeedOperatorSetField(op_setup, "scale", elem_restr_scale, CEED_BASIS_COLLOCATED, scale_stored));
79     PetscCallCeed(ceed, CeedOperatorSetField(op_setup, "dXdx", elem_restr_dXdx, CEED_BASIS_COLLOCATED, dXdx));
80 
81     // -- Compute geometric factors
82     PetscCallCeed(ceed, CeedOperatorApply(op_setup, ceed_data->x_coord, CEED_VECTOR_NONE, CEED_REQUEST_IMMEDIATE));
83 
84     // -- Compute STGData
85     PetscCallCeed(ceed, CeedOperatorCreate(ceed, qf_stgdata, NULL, NULL, &op_stgdata));
86     PetscCallCeed(ceed, CeedOperatorSetField(op_stgdata, "dXdx", elem_restr_dXdx, CEED_BASIS_COLLOCATED, dXdx));
87     PetscCallCeed(ceed, CeedOperatorSetField(op_stgdata, "x", elem_restr_x_stored, CEED_BASIS_COLLOCATED, x_stored));
88     PetscCallCeed(ceed, CeedOperatorSetField(op_stgdata, "stg data", elem_restr_stgdata, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE));
89 
90     PetscCallCeed(ceed, CeedOperatorApply(op_stgdata, CEED_VECTOR_NONE, stg_data, CEED_REQUEST_IMMEDIATE));
91 
92     // -- Setup BC QFunctions
93     SetupStrongSTG_QF(ceed, problem, num_comp_x, num_comp_q, stg_data_size, dXdx_size, &qf_strongbc);
94     PetscCallCeed(ceed, CeedOperatorCreate(ceed, qf_strongbc, NULL, NULL, &op_strong_bc_sub));
95     PetscCallCeed(ceed, CeedOperatorSetName(op_strong_bc_sub, "Strong STG"));
96 
97     PetscCallCeed(ceed, CeedOperatorSetField(op_strong_bc_sub, "dXdx", elem_restr_dXdx, CEED_BASIS_COLLOCATED, dXdx));
98     PetscCallCeed(ceed, CeedOperatorSetField(op_strong_bc_sub, "x", elem_restr_x_stored, CEED_BASIS_COLLOCATED, x_stored));
99     PetscCallCeed(ceed, CeedOperatorSetField(op_strong_bc_sub, "scale", elem_restr_scale, CEED_BASIS_COLLOCATED, scale_stored));
100     PetscCallCeed(ceed, CeedOperatorSetField(op_strong_bc_sub, "stg data", elem_restr_stgdata, CEED_BASIS_COLLOCATED, stg_data));
101     PetscCallCeed(ceed, CeedOperatorSetField(op_strong_bc_sub, "q", elem_restr_q_sur, CEED_BASIS_COLLOCATED, CEED_VECTOR_ACTIVE));
102 
103     // -- Add to composite operator
104     PetscCallCeed(ceed, CeedCompositeOperatorAddSub(op_strong_bc, op_strong_bc_sub));
105 
106     PetscCallCeed(ceed, CeedVectorDestroy(&multiplicity));
107     PetscCallCeed(ceed, CeedVectorDestroy(&x_stored));
108     PetscCallCeed(ceed, CeedVectorDestroy(&scale_stored));
109     PetscCallCeed(ceed, CeedVectorDestroy(&stg_data));
110     PetscCallCeed(ceed, CeedVectorDestroy(&dXdx));
111     PetscCallCeed(ceed, CeedElemRestrictionDestroy(&elem_restr_x_sur));
112     PetscCallCeed(ceed, CeedElemRestrictionDestroy(&elem_restr_q_sur));
113     PetscCallCeed(ceed, CeedElemRestrictionDestroy(&elem_restr_x_stored));
114     PetscCallCeed(ceed, CeedElemRestrictionDestroy(&elem_restr_scale));
115     PetscCallCeed(ceed, CeedElemRestrictionDestroy(&elem_restr_stgdata));
116     PetscCallCeed(ceed, CeedElemRestrictionDestroy(&elem_restr_dXdx));
117     PetscCallCeed(ceed, CeedQFunctionDestroy(&qf_strongbc));
118     PetscCallCeed(ceed, CeedQFunctionDestroy(&qf_stgdata));
119     PetscCallCeed(ceed, CeedOperatorDestroy(&op_strong_bc_sub));
120     PetscCallCeed(ceed, CeedOperatorDestroy(&op_setup));
121     PetscCallCeed(ceed, CeedOperatorDestroy(&op_stgdata));
122   }
123 
124   PetscCallCeed(ceed, CeedOperatorGetContextFieldLabel(op_strong_bc, "solution time", &phys->stg_solution_time_label));
125 
126   PetscCallCeed(ceed, CeedBasisDestroy(&basis_x_to_q_sur));
127   PetscCallCeed(ceed, CeedQFunctionDestroy(&qf_setup));
128 
129   PetscFunctionReturn(PETSC_SUCCESS);
130 }
131 
132 PetscErrorCode DMPlexInsertBoundaryValues_StrongBCCeed(DM dm, PetscBool insert_essential, Vec Q_loc, PetscReal time, Vec face_geom_FVM,
133                                                        Vec cell_geom_FVM, Vec grad_FVM) {
134   Vec  boundary_mask;
135   User user;
136 
137   PetscFunctionBeginUser;
138   PetscCall(DMGetApplicationContext(dm, &user));
139 
140   if (user->phys->stg_solution_time_label) {
141     PetscCallCeed(user->ceed, CeedOperatorSetContextDouble(user->op_strong_bc_ctx->op, user->phys->stg_solution_time_label, &time));
142   }
143 
144   // Mask Strong BC entries
145   PetscCall(DMGetNamedLocalVector(dm, "boundary mask", &boundary_mask));
146   PetscCall(VecPointwiseMult(Q_loc, Q_loc, boundary_mask));
147   PetscCall(DMRestoreNamedLocalVector(dm, "boundary mask", &boundary_mask));
148 
149   PetscCall(ApplyAddCeedOperatorLocalToLocal(NULL, Q_loc, user->op_strong_bc_ctx));
150 
151   PetscFunctionReturn(PETSC_SUCCESS);
152 }
153 
154 PetscErrorCode SetupStrongBC_Ceed(Ceed ceed, CeedData ceed_data, DM dm, User user, ProblemData *problem, SimpleBC bc) {
155   CeedOperator op_strong_bc;
156 
157   PetscFunctionBeginUser;
158   {
159     Vec boundary_mask, global_vec;
160 
161     PetscCall(DMGetNamedLocalVector(dm, "boundary mask", &boundary_mask));
162     PetscCall(DMGetGlobalVector(dm, &global_vec));
163     PetscCall(VecZeroEntries(boundary_mask));
164     PetscCall(VecSet(global_vec, 1.0));
165     PetscCall(DMGlobalToLocal(dm, global_vec, INSERT_VALUES, boundary_mask));
166     PetscCall(DMRestoreNamedLocalVector(dm, "boundary mask", &boundary_mask));
167     PetscCall(DMRestoreGlobalVector(dm, &global_vec));
168   }
169 
170   PetscCallCeed(ceed, CeedCompositeOperatorCreate(ceed, &op_strong_bc));
171   {
172     PetscBool use_strongstg = PETSC_FALSE;
173     PetscCall(PetscOptionsGetBool(NULL, NULL, "-stg_strong", &use_strongstg, NULL));
174 
175     if (use_strongstg) {
176       PetscCall(SetupStrongSTG_Ceed(ceed, ceed_data, dm, problem, bc, user->phys, op_strong_bc));
177     }
178   }
179 
180   PetscCall(OperatorApplyContextCreate(NULL, NULL, ceed, op_strong_bc, CEED_VECTOR_NONE, NULL, NULL, NULL, &user->op_strong_bc_ctx));
181 
182   PetscCall(PetscObjectComposeFunction((PetscObject)dm, "DMPlexInsertBoundaryValues_C", DMPlexInsertBoundaryValues_StrongBCCeed));
183   PetscFunctionReturn(PETSC_SUCCESS);
184 }
185