1 // Copyright (c) 2017-2024, 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 "../include/libceedsetup.h" 9 10 #include <stdio.h> 11 12 #include "../include/libceedsetup.h" 13 #include "../include/petscutils.h" 14 15 // ----------------------------------------------------------------------------- 16 // Destroy libCEED operator objects 17 // ----------------------------------------------------------------------------- 18 PetscErrorCode CeedDataDestroy(CeedInt i, CeedData data) { 19 PetscFunctionBeginUser; 20 CeedVectorDestroy(&data->q_data); 21 CeedVectorDestroy(&data->x_ceed); 22 CeedVectorDestroy(&data->y_ceed); 23 CeedBasisDestroy(&data->basis_x); 24 CeedBasisDestroy(&data->basis_u); 25 CeedElemRestrictionDestroy(&data->elem_restr_u); 26 CeedElemRestrictionDestroy(&data->elem_restr_x); 27 CeedElemRestrictionDestroy(&data->elem_restr_u_i); 28 CeedElemRestrictionDestroy(&data->elem_restr_qd_i); 29 CeedQFunctionDestroy(&data->qf_apply); 30 CeedOperatorDestroy(&data->op_apply); 31 if (i > 0) { 32 CeedOperatorDestroy(&data->op_prolong); 33 CeedOperatorDestroy(&data->op_restrict); 34 } 35 PetscCall(PetscFree(data)); 36 PetscFunctionReturn(PETSC_SUCCESS); 37 }; 38 39 // ----------------------------------------------------------------------------- 40 // Set up libCEED for a given degree 41 // ----------------------------------------------------------------------------- 42 PetscErrorCode SetupLibceedByDegree(DM dm, Ceed ceed, CeedInt degree, CeedInt topo_dim, CeedInt q_extra, PetscInt num_comp_x, PetscInt num_comp_u, 43 PetscInt g_size, PetscInt xl_size, BPData bp_data, CeedData data, PetscBool setup_rhs, CeedVector rhs_ceed, 44 CeedVector *target) { 45 DM dm_coord; 46 Vec coords; 47 const PetscScalar *coord_array; 48 CeedBasis basis_x, basis_u; 49 CeedElemRestriction elem_restr_x, elem_restr_u, elem_restr_u_i, elem_restr_qd_i; 50 CeedQFunction qf_setup_geo, qf_apply; 51 CeedOperator op_setup_geo, op_apply; 52 CeedVector x_coord, q_data, x_ceed, y_ceed; 53 PetscInt c_start, c_end, num_elem; 54 CeedInt num_qpts, q_data_size = bp_data.q_data_size; 55 CeedScalar R = 1; // radius of the sphere 56 CeedScalar l = 1.0 / PetscSqrtReal(3.0); // half edge of the inscribed cube 57 58 PetscFunctionBeginUser; 59 PetscCall(DMGetCoordinateDM(dm, &dm_coord)); 60 61 // CEED bases 62 PetscCall(CreateBasisFromPlex(ceed, dm_coord, 0, 0, 0, 0, bp_data, &basis_x)); 63 PetscCall(CreateBasisFromPlex(ceed, dm, 0, 0, 0, 0, bp_data, &basis_u)); 64 65 // CEED restrictions 66 PetscCall(CreateRestrictionFromPlex(ceed, dm_coord, 0, 0, 0, &elem_restr_x)); 67 PetscCall(CreateRestrictionFromPlex(ceed, dm, 0, 0, 0, &elem_restr_u)); 68 69 PetscCall(DMPlexGetHeightStratum(dm, 0, &c_start, &c_end)); 70 num_elem = c_end - c_start; 71 CeedBasisGetNumQuadraturePoints(basis_u, &num_qpts); 72 73 CeedElemRestrictionCreateStrided(ceed, num_elem, num_qpts, num_comp_u, num_comp_u * num_elem * num_qpts, CEED_STRIDES_BACKEND, &elem_restr_u_i); 74 CeedElemRestrictionCreateStrided(ceed, num_elem, num_qpts, q_data_size, q_data_size * num_elem * num_qpts, CEED_STRIDES_BACKEND, &elem_restr_qd_i); 75 76 // Element coordinates 77 PetscCall(DMGetCoordinatesLocal(dm, &coords)); 78 PetscCall(VecGetArrayRead(coords, &coord_array)); 79 80 CeedElemRestrictionCreateVector(elem_restr_x, &x_coord, NULL); 81 CeedVectorSetArray(x_coord, CEED_MEM_HOST, CEED_COPY_VALUES, (PetscScalar *)coord_array); 82 PetscCall(VecRestoreArrayRead(coords, &coord_array)); 83 84 // Create the persistent vectors that will be needed in setup and apply 85 CeedVectorCreate(ceed, q_data_size * num_elem * num_qpts, &q_data); 86 CeedVectorCreate(ceed, xl_size, &x_ceed); 87 CeedVectorCreate(ceed, xl_size, &y_ceed); 88 89 // Create the QFunction that builds the context data 90 CeedQFunctionCreateInterior(ceed, 1, bp_data.setup_geo, bp_data.setup_geo_loc, &qf_setup_geo); 91 CeedQFunctionAddInput(qf_setup_geo, "x", num_comp_x, CEED_EVAL_INTERP); 92 CeedQFunctionAddInput(qf_setup_geo, "dx", num_comp_x * topo_dim, CEED_EVAL_GRAD); 93 CeedQFunctionAddInput(qf_setup_geo, "weight", 1, CEED_EVAL_WEIGHT); 94 CeedQFunctionAddOutput(qf_setup_geo, "qdata", q_data_size, CEED_EVAL_NONE); 95 96 // Create the operator that builds the quadrature data 97 CeedOperatorCreate(ceed, qf_setup_geo, NULL, NULL, &op_setup_geo); 98 CeedOperatorSetField(op_setup_geo, "x", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 99 CeedOperatorSetField(op_setup_geo, "dx", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 100 CeedOperatorSetField(op_setup_geo, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE); 101 CeedOperatorSetField(op_setup_geo, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, CEED_VECTOR_ACTIVE); 102 103 // Setup q_data 104 CeedOperatorApply(op_setup_geo, x_coord, q_data, CEED_REQUEST_IMMEDIATE); 105 106 // Set up PDE operator 107 CeedInt in_scale = bp_data.in_mode == CEED_EVAL_GRAD ? topo_dim : 1; 108 CeedInt out_scale = bp_data.out_mode == CEED_EVAL_GRAD ? topo_dim : 1; 109 CeedQFunctionCreateInterior(ceed, 1, bp_data.apply, bp_data.apply_loc, &qf_apply); 110 CeedQFunctionAddInput(qf_apply, "u", num_comp_u * in_scale, bp_data.in_mode); 111 CeedQFunctionAddInput(qf_apply, "qdata", q_data_size, CEED_EVAL_NONE); 112 CeedQFunctionAddOutput(qf_apply, "v", num_comp_u * out_scale, bp_data.out_mode); 113 114 // Create the mass or diff operator 115 CeedOperatorCreate(ceed, qf_apply, NULL, NULL, &op_apply); 116 CeedOperatorSetField(op_apply, "u", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 117 CeedOperatorSetField(op_apply, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, q_data); 118 CeedOperatorSetField(op_apply, "v", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 119 120 // Set up RHS if needed 121 if (setup_rhs) { 122 CeedQFunction qf_setup_rhs; 123 CeedOperator op_setup_rhs; 124 CeedVectorCreate(ceed, num_elem * num_qpts * num_comp_u, target); 125 // Create the q-function that sets up the RHS and true solution 126 CeedQFunctionCreateInterior(ceed, 1, bp_data.setup_rhs, bp_data.setup_rhs_loc, &qf_setup_rhs); 127 CeedQFunctionAddInput(qf_setup_rhs, "x", num_comp_x, CEED_EVAL_INTERP); 128 CeedQFunctionAddInput(qf_setup_rhs, "qdata", q_data_size, CEED_EVAL_NONE); 129 CeedQFunctionAddOutput(qf_setup_rhs, "true solution", num_comp_u, CEED_EVAL_NONE); 130 CeedQFunctionAddOutput(qf_setup_rhs, "rhs", num_comp_u, CEED_EVAL_INTERP); 131 132 // Create the operator that builds the RHS and true solution 133 CeedOperatorCreate(ceed, qf_setup_rhs, NULL, NULL, &op_setup_rhs); 134 CeedOperatorSetField(op_setup_rhs, "x", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 135 CeedOperatorSetField(op_setup_rhs, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, q_data); 136 CeedOperatorSetField(op_setup_rhs, "true solution", elem_restr_u_i, CEED_BASIS_NONE, *target); 137 CeedOperatorSetField(op_setup_rhs, "rhs", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 138 139 // Set up the libCEED context 140 CeedQFunctionContext ctx_rhs_setup; 141 CeedQFunctionContextCreate(ceed, &ctx_rhs_setup); 142 CeedScalar rhs_setup_data[2] = {R, l}; 143 CeedQFunctionContextSetData(ctx_rhs_setup, CEED_MEM_HOST, CEED_COPY_VALUES, sizeof rhs_setup_data, &rhs_setup_data); 144 CeedQFunctionSetContext(qf_setup_rhs, ctx_rhs_setup); 145 CeedQFunctionContextDestroy(&ctx_rhs_setup); 146 147 // Setup RHS and target 148 CeedOperatorApply(op_setup_rhs, x_coord, rhs_ceed, CEED_REQUEST_IMMEDIATE); 149 150 // Cleanup 151 CeedQFunctionDestroy(&qf_setup_rhs); 152 CeedOperatorDestroy(&op_setup_rhs); 153 } 154 155 // Cleanup 156 CeedQFunctionDestroy(&qf_setup_geo); 157 CeedOperatorDestroy(&op_setup_geo); 158 CeedVectorDestroy(&x_coord); 159 160 // Save libCEED data required for level 161 data->basis_x = basis_x; 162 data->basis_u = basis_u; 163 data->elem_restr_x = elem_restr_x; 164 data->elem_restr_u = elem_restr_u; 165 data->elem_restr_u_i = elem_restr_u_i; 166 data->elem_restr_qd_i = elem_restr_qd_i; 167 data->qf_apply = qf_apply; 168 data->op_apply = op_apply; 169 data->q_data = q_data; 170 data->x_ceed = x_ceed; 171 data->y_ceed = y_ceed; 172 data->q_data_size = q_data_size; 173 PetscFunctionReturn(PETSC_SUCCESS); 174 }; 175 176 // ----------------------------------------------------------------------------- 177 // Setup libCEED level transfer operator objects 178 // ----------------------------------------------------------------------------- 179 PetscErrorCode CeedLevelTransferSetup(DM dm, Ceed ceed, CeedInt level, CeedInt num_comp_u, CeedData *data, BPData bp_data, Vec fine_mult) { 180 PetscFunctionBeginUser; 181 // Restriction - Fine to corse 182 CeedOperator op_restrict; 183 // Interpolation - Corse to fine 184 CeedOperator op_prolong; 185 // Coarse grid operator 186 CeedOperator op_apply; 187 // Basis 188 CeedBasis basis_u; 189 PetscCall(CreateBasisFromPlex(ceed, dm, 0, 0, 0, 0, bp_data, &basis_u)); 190 191 // --------------------------------------------------------------------------- 192 // Coarse Grid, Prolongation, and Restriction Operators 193 // --------------------------------------------------------------------------- 194 // Create the Operators that compute the prolongation and 195 // restriction between the p-multigrid levels and the coarse grid eval. 196 // --------------------------------------------------------------------------- 197 // Place in libCEED array 198 PetscMemType m_mem_type; 199 PetscCall(VecReadP2C(fine_mult, &m_mem_type, data[level]->x_ceed)); 200 201 CeedOperatorMultigridLevelCreate(data[level]->op_apply, data[level]->x_ceed, data[level - 1]->elem_restr_u, basis_u, &op_apply, &op_prolong, 202 &op_restrict); 203 204 // Restore PETSc vector 205 PetscCall(VecReadC2P(data[level]->x_ceed, m_mem_type, fine_mult)); 206 PetscCall(VecZeroEntries(fine_mult)); 207 // -- Save libCEED data 208 data[level - 1]->op_apply = op_apply; 209 data[level]->op_prolong = op_prolong; 210 data[level]->op_restrict = op_restrict; 211 212 CeedBasisDestroy(&basis_u); 213 PetscFunctionReturn(PETSC_SUCCESS); 214 }; 215 216 PetscErrorCode SetupErrorOperator(DM dm, Ceed ceed, BPData bp_data, CeedInt topo_dim, PetscInt num_comp_x, PetscInt num_comp_u, 217 CeedOperator *op_error) { 218 DM dm_coord; 219 Vec coords; 220 const PetscScalar *coord_array; 221 CeedBasis basis_x, basis_u; 222 CeedElemRestriction elem_restr_x, elem_restr_u, elem_restr_u_i, elem_restr_qd_i; 223 CeedQFunction qf_setup_geo, qf_setup_rhs, qf_error; 224 CeedOperator op_setup_geo, op_setup_rhs; 225 CeedVector x_coord, q_data, target, rhs; 226 PetscInt c_start, c_end, num_elem; 227 CeedInt num_qpts, q_data_size = bp_data.q_data_size; 228 CeedScalar R = 1; // radius of the sphere 229 CeedScalar l = 1.0 / PetscSqrtReal(3.0); // half edge of the inscribed cube 230 231 PetscFunctionBeginUser; 232 PetscCall(DMGetCoordinateDM(dm, &dm_coord)); 233 234 // CEED bases 235 PetscCall(CreateBasisFromPlex(ceed, dm_coord, 0, 0, 0, 0, bp_data, &basis_x)); 236 PetscCall(CreateBasisFromPlex(ceed, dm, 0, 0, 0, 0, bp_data, &basis_u)); 237 238 // CEED restrictions 239 PetscCall(CreateRestrictionFromPlex(ceed, dm_coord, 0, 0, 0, &elem_restr_x)); 240 PetscCall(CreateRestrictionFromPlex(ceed, dm, 0, 0, 0, &elem_restr_u)); 241 242 PetscCall(DMPlexGetHeightStratum(dm, 0, &c_start, &c_end)); 243 num_elem = c_end - c_start; 244 CeedBasisGetNumQuadraturePoints(basis_u, &num_qpts); 245 246 CeedElemRestrictionCreateStrided(ceed, num_elem, num_qpts, num_comp_u, num_comp_u * num_elem * num_qpts, CEED_STRIDES_BACKEND, &elem_restr_u_i); 247 CeedElemRestrictionCreateStrided(ceed, num_elem, num_qpts, q_data_size, q_data_size * num_elem * num_qpts, CEED_STRIDES_BACKEND, &elem_restr_qd_i); 248 249 // Element coordinates 250 PetscCall(DMGetCoordinatesLocal(dm, &coords)); 251 PetscCall(VecGetArrayRead(coords, &coord_array)); 252 253 CeedElemRestrictionCreateVector(elem_restr_x, &x_coord, NULL); 254 CeedVectorSetArray(x_coord, CEED_MEM_HOST, CEED_COPY_VALUES, (PetscScalar *)coord_array); 255 PetscCall(VecRestoreArrayRead(coords, &coord_array)); 256 257 // Create the persistent vectors that will be needed in setup and apply 258 CeedVectorCreate(ceed, q_data_size * num_elem * num_qpts, &q_data); 259 260 // Create the QFunction that builds the context data 261 CeedQFunctionCreateInterior(ceed, 1, bp_data.setup_geo, bp_data.setup_geo_loc, &qf_setup_geo); 262 CeedQFunctionAddInput(qf_setup_geo, "x", num_comp_x, CEED_EVAL_INTERP); 263 CeedQFunctionAddInput(qf_setup_geo, "dx", num_comp_x * topo_dim, CEED_EVAL_GRAD); 264 CeedQFunctionAddInput(qf_setup_geo, "weight", 1, CEED_EVAL_WEIGHT); 265 CeedQFunctionAddOutput(qf_setup_geo, "qdata", q_data_size, CEED_EVAL_NONE); 266 267 // Create the operator that builds the quadrature data 268 CeedOperatorCreate(ceed, qf_setup_geo, NULL, NULL, &op_setup_geo); 269 CeedOperatorSetField(op_setup_geo, "x", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 270 CeedOperatorSetField(op_setup_geo, "dx", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 271 CeedOperatorSetField(op_setup_geo, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE); 272 CeedOperatorSetField(op_setup_geo, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, CEED_VECTOR_ACTIVE); 273 274 // Setup q_data 275 CeedOperatorApply(op_setup_geo, x_coord, q_data, CEED_REQUEST_IMMEDIATE); 276 277 // Set up target vector 278 CeedElemRestrictionCreateVector(elem_restr_u, &rhs, NULL); 279 CeedVectorCreate(ceed, num_elem * num_qpts * num_comp_u, &target); 280 // Create the q-function that sets up the RHS and true solution 281 CeedQFunctionCreateInterior(ceed, 1, bp_data.setup_rhs, bp_data.setup_rhs_loc, &qf_setup_rhs); 282 CeedQFunctionAddInput(qf_setup_rhs, "x", num_comp_x, CEED_EVAL_INTERP); 283 CeedQFunctionAddInput(qf_setup_rhs, "qdata", q_data_size, CEED_EVAL_NONE); 284 CeedQFunctionAddOutput(qf_setup_rhs, "true solution", num_comp_u, CEED_EVAL_NONE); 285 CeedQFunctionAddOutput(qf_setup_rhs, "rhs", num_comp_u, CEED_EVAL_INTERP); 286 287 // Create the operator that builds the RHS and true solution 288 CeedOperatorCreate(ceed, qf_setup_rhs, NULL, NULL, &op_setup_rhs); 289 CeedOperatorSetField(op_setup_rhs, "x", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 290 CeedOperatorSetField(op_setup_rhs, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, q_data); 291 CeedOperatorSetField(op_setup_rhs, "true solution", elem_restr_u_i, CEED_BASIS_NONE, target); 292 CeedOperatorSetField(op_setup_rhs, "rhs", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 293 294 // Set up the libCEED context 295 CeedQFunctionContext ctx_rhs_setup; 296 CeedQFunctionContextCreate(ceed, &ctx_rhs_setup); 297 CeedScalar rhs_setup_data[2] = {R, l}; 298 CeedQFunctionContextSetData(ctx_rhs_setup, CEED_MEM_HOST, CEED_COPY_VALUES, sizeof rhs_setup_data, &rhs_setup_data); 299 CeedQFunctionSetContext(qf_setup_rhs, ctx_rhs_setup); 300 CeedQFunctionContextDestroy(&ctx_rhs_setup); 301 302 // Setup RHS and target 303 CeedOperatorApply(op_setup_rhs, x_coord, rhs, CEED_REQUEST_IMMEDIATE); 304 305 // Set up error operator 306 // Create the error QFunction 307 CeedQFunctionCreateInterior(ceed, 1, bp_data.error, bp_data.error_loc, &qf_error); 308 CeedQFunctionAddInput(qf_error, "u", num_comp_u, CEED_EVAL_INTERP); 309 CeedQFunctionAddInput(qf_error, "true_soln", num_comp_u, CEED_EVAL_NONE); 310 CeedQFunctionAddInput(qf_error, "qdata", q_data_size, CEED_EVAL_NONE); 311 CeedQFunctionAddOutput(qf_error, "error", num_comp_u, CEED_EVAL_INTERP); 312 313 // Create the error operator 314 CeedOperatorCreate(ceed, qf_error, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, op_error); 315 CeedOperatorSetField(*op_error, "u", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 316 CeedOperatorSetField(*op_error, "true_soln", elem_restr_u_i, CEED_BASIS_NONE, target); 317 CeedOperatorSetField(*op_error, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, q_data); 318 CeedOperatorSetField(*op_error, "error", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 319 320 // Cleanup 321 CeedQFunctionDestroy(&qf_setup_rhs); 322 CeedOperatorDestroy(&op_setup_rhs); 323 CeedQFunctionDestroy(&qf_setup_geo); 324 CeedOperatorDestroy(&op_setup_geo); 325 CeedQFunctionDestroy(&qf_error); 326 CeedVectorDestroy(&x_coord); 327 CeedVectorDestroy(&rhs); 328 CeedVectorDestroy(&target); 329 CeedVectorDestroy(&q_data); 330 CeedElemRestrictionDestroy(&elem_restr_u_i); 331 CeedElemRestrictionDestroy(&elem_restr_qd_i); 332 CeedElemRestrictionDestroy(&elem_restr_x); 333 CeedElemRestrictionDestroy(&elem_restr_u); 334 CeedBasisDestroy(&basis_x); 335 CeedBasisDestroy(&basis_u); 336 337 PetscFunctionReturn(PETSC_SUCCESS); 338 } 339