1 // SPDX-FileCopyrightText: Copyright (c) 2017-2024, HONEE contributors. 2 // SPDX-License-Identifier: Apache-2.0 OR BSD-2-Clause 3 4 /// @file 5 /// Setup DM for HONEE 6 7 #include <ceed.h> 8 #include <petscdmplex.h> 9 #include <petscds.h> 10 11 #include <navierstokes.h> 12 #include "../problems/stg_shur14.h" 13 14 // Create mesh 15 PetscErrorCode CreateDM(MPI_Comm comm, ProblemData problem, MatType mat_type, VecType vec_type, DM *dm) { 16 PetscBool isCGNS; 17 char filename[PETSC_MAX_PATH_LEN] = ""; 18 19 PetscFunctionBeginUser; 20 PetscCall(PetscOptionsGetString(NULL, NULL, "-dm_plex_filename", filename, sizeof(filename), NULL)); 21 PetscCall(HoneeCheckFilenameExtension(comm, filename, ".cgns", &isCGNS)); 22 23 if (isCGNS) { 24 // Must create from file to keep the sfNatural field in tact 25 PetscCall(DMPlexCreateFromFile(comm, filename, "HONEE", PETSC_TRUE, dm)); 26 PetscCall(PetscOptionsSetValue(NULL, "-dm_plex_filename", "")); 27 } else { 28 PetscCall(DMCreate(comm, dm)); 29 PetscCall(DMSetType(*dm, DMPLEX)); 30 } 31 32 { 33 PetscBool skip = PETSC_TRUE; 34 PetscCall(PetscOptionsGetBool(NULL, NULL, "-dm_mat_preallocate_skip", &skip, NULL)); 35 PetscCall(DMSetMatrixPreallocateSkip(*dm, skip)); 36 } 37 PetscCall(DMSetMatType(*dm, mat_type)); 38 PetscCall(DMSetVecType(*dm, vec_type)); 39 PetscCall(HoneeOptionsSetValueDefault(NULL, "-dm_plex_simplex", "0")); 40 PetscCall(HoneeOptionsSetValueDefault(NULL, "-dm_localize", "0")); // Delay localization until DMSetupByOrderEnd_FEM 41 PetscCall(DMSetSparseLocalize(*dm, PETSC_FALSE)); 42 PetscCall(DMSetBlockingType(*dm, DM_BLOCKING_FIELD_NODE)); 43 PetscCall(DMPlexSetPartitionBalance(*dm, PETSC_TRUE)); 44 45 // Set CL options 46 PetscCall(DMSetFromOptions(*dm)); 47 PetscCall(DMViewFromOptions(*dm, NULL, "-dm_view")); 48 { // Force isoperiodic point SF to be created to update sfNatural. 49 // Needs to be done before removing the field corresponding to sfNatural, but after IsoperiodicFaces have been set 50 PetscInt num_fields; 51 PetscCall(DMGetNumFields(*dm, &num_fields)); 52 if (num_fields) { 53 PetscSection dummy; 54 PetscCall(DMGetGlobalSection(*dm, &dummy)); 55 } 56 } 57 PetscFunctionReturn(PETSC_SUCCESS); 58 } 59 60 // Setup DM 61 PetscErrorCode SetUpDM(DM dm, ProblemData problem, PetscInt degree, PetscInt q_extra, SimpleBC bc, Physics phys) { 62 PetscInt num_comp_q = 5; 63 64 PetscFunctionBeginUser; 65 PetscCall(DMClearFields(dm)); 66 PetscCall(DMSetLocalSection(dm, NULL)); 67 PetscCall(DMSetupByOrderBegin_FEM(PETSC_TRUE, PETSC_TRUE, degree, PETSC_DECIDE, q_extra, 1, &num_comp_q, dm)); 68 69 { // Add strong boundary conditions to DM 70 DMLabel label; 71 PetscCall(DMGetLabel(dm, "Face Sets", &label)); 72 PetscCheck(label, PetscObjectComm((PetscObject)dm), PETSC_ERR_SUP, "DM does not have 'Face Sets' label"); 73 PetscCall(DMPlexLabelComplete(dm, label)); 74 75 for (PetscInt i = 0; i < problem->num_bc_defs; i++) { 76 BCDefinition bc_def = problem->bc_defs[i]; 77 PetscInt num_essential_comps, num_label_values; 78 const PetscInt *essential_comps, *label_values; 79 const char *name; 80 81 PetscCall(BCDefinitionSetDM(problem->bc_defs[i], dm)); 82 PetscCall(BCDefinitionGetEssential(bc_def, &num_essential_comps, &essential_comps)); 83 if (essential_comps > 0) { 84 PetscCall(BCDefinitionGetInfo(bc_def, &name, &num_label_values, &label_values)); 85 PetscCall(DMAddBoundary(dm, DM_BC_ESSENTIAL, name, label, num_label_values, label_values, 0, num_essential_comps, essential_comps, NULL, NULL, 86 NULL, NULL)); 87 } 88 } 89 { 90 PetscBool use_strongstg = PETSC_FALSE; 91 PetscCall(PetscOptionsGetBool(NULL, NULL, "-stg_strong", &use_strongstg, NULL)); 92 if (use_strongstg) PetscCall(SetupStrongStg(dm, bc, problem, phys)); 93 } 94 } 95 96 PetscCall(DMSetupByOrderEnd_FEM(PETSC_TRUE, dm)); 97 98 // Empty name for conserved field (because there is only one field) 99 PetscSection section; 100 PetscCall(DMGetLocalSection(dm, §ion)); 101 PetscCall(PetscSectionSetFieldName(section, 0, "")); 102 switch (phys->state_var) { 103 case STATEVAR_CONSERVATIVE: 104 PetscCall(PetscSectionSetComponentName(section, 0, 0, "Density")); 105 PetscCall(PetscSectionSetComponentName(section, 0, 1, "MomentumX")); 106 PetscCall(PetscSectionSetComponentName(section, 0, 2, "MomentumY")); 107 PetscCall(PetscSectionSetComponentName(section, 0, 3, "MomentumZ")); 108 PetscCall(PetscSectionSetComponentName(section, 0, 4, "TotalEnergy")); 109 break; 110 111 case STATEVAR_PRIMITIVE: 112 PetscCall(PetscSectionSetComponentName(section, 0, 0, "Pressure")); 113 PetscCall(PetscSectionSetComponentName(section, 0, 1, "VelocityX")); 114 PetscCall(PetscSectionSetComponentName(section, 0, 2, "VelocityY")); 115 PetscCall(PetscSectionSetComponentName(section, 0, 3, "VelocityZ")); 116 PetscCall(PetscSectionSetComponentName(section, 0, 4, "Temperature")); 117 break; 118 119 case STATEVAR_ENTROPY: 120 PetscCall(PetscSectionSetComponentName(section, 0, 0, "EntropyDensity")); 121 PetscCall(PetscSectionSetComponentName(section, 0, 1, "EntropyMomentumX")); 122 PetscCall(PetscSectionSetComponentName(section, 0, 2, "EntropyMomentumY")); 123 PetscCall(PetscSectionSetComponentName(section, 0, 3, "EntropyMomentumZ")); 124 PetscCall(PetscSectionSetComponentName(section, 0, 4, "EntropyTotalEnergy")); 125 break; 126 } 127 PetscFunctionReturn(PETSC_SUCCESS); 128 } 129 130 // Refine DM for high-order viz 131 PetscErrorCode VizRefineDM(DM dm, Honee honee, ProblemData problem, SimpleBC bc, Physics phys) { 132 DM dm_hierarchy[honee->app_ctx->viz_refine + 1]; 133 VecType vec_type; 134 135 PetscFunctionBeginUser; 136 PetscCall(DMPlexSetRefinementUniform(dm, PETSC_TRUE)); 137 138 dm_hierarchy[0] = dm; 139 for (PetscInt i = 0, d = honee->app_ctx->degree; i < honee->app_ctx->viz_refine; i++) { 140 Mat interp_next; 141 PetscCall(DMRefine(dm_hierarchy[i], MPI_COMM_NULL, &dm_hierarchy[i + 1])); 142 PetscCall(DMClearDS(dm_hierarchy[i + 1])); 143 PetscCall(DMClearFields(dm_hierarchy[i + 1])); 144 PetscCall(DMSetCoarseDM(dm_hierarchy[i + 1], dm_hierarchy[i])); 145 d = (d + 1) / 2; 146 PetscInt q_order = d + honee->app_ctx->q_extra; 147 if (i + 1 == honee->app_ctx->viz_refine) d = 1; 148 PetscCall(DMGetVecType(dm, &vec_type)); 149 PetscCall(DMSetVecType(dm_hierarchy[i + 1], vec_type)); 150 PetscCall(SetUpDM(dm_hierarchy[i + 1], problem, d, q_order, bc, phys)); 151 PetscCall(DMCreateInterpolation(dm_hierarchy[i], dm_hierarchy[i + 1], &interp_next, NULL)); 152 if (!i) honee->interp_viz = interp_next; 153 else { 154 Mat C; 155 PetscCall(MatMatMult(interp_next, honee->interp_viz, MAT_INITIAL_MATRIX, PETSC_DECIDE, &C)); 156 PetscCall(MatDestroy(&interp_next)); 157 PetscCall(MatDestroy(&honee->interp_viz)); 158 honee->interp_viz = C; 159 } 160 } 161 for (PetscInt i = 1; i < honee->app_ctx->viz_refine; i++) { 162 PetscCall(DMDestroy(&dm_hierarchy[i])); 163 } 164 honee->dm_viz = dm_hierarchy[honee->app_ctx->viz_refine]; 165 PetscFunctionReturn(PETSC_SUCCESS); 166 } 167