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, PetscBool is_fine_level, 44 CeedVector rhs_ceed, 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 = NULL, qf_apply = NULL; 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 if (is_fine_level) { 90 // Create the QFunction that builds the context data 91 CeedQFunctionCreateInterior(ceed, 1, bp_data.setup_geo, bp_data.setup_geo_loc, &qf_setup_geo); 92 CeedQFunctionAddInput(qf_setup_geo, "x", num_comp_x, CEED_EVAL_INTERP); 93 CeedQFunctionAddInput(qf_setup_geo, "dx", num_comp_x * topo_dim, CEED_EVAL_GRAD); 94 CeedQFunctionAddInput(qf_setup_geo, "weight", 1, CEED_EVAL_WEIGHT); 95 CeedQFunctionAddOutput(qf_setup_geo, "qdata", q_data_size, CEED_EVAL_NONE); 96 97 // Create the operator that builds the quadrature data 98 CeedOperatorCreate(ceed, qf_setup_geo, NULL, NULL, &op_setup_geo); 99 CeedOperatorSetField(op_setup_geo, "x", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 100 CeedOperatorSetField(op_setup_geo, "dx", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 101 CeedOperatorSetField(op_setup_geo, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE); 102 CeedOperatorSetField(op_setup_geo, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, CEED_VECTOR_ACTIVE); 103 104 // Setup q_data 105 CeedOperatorApply(op_setup_geo, x_coord, q_data, CEED_REQUEST_IMMEDIATE); 106 107 // Set up PDE operator 108 CeedInt in_scale = bp_data.in_mode == CEED_EVAL_GRAD ? topo_dim : 1; 109 CeedInt out_scale = bp_data.out_mode == CEED_EVAL_GRAD ? topo_dim : 1; 110 CeedQFunctionCreateInterior(ceed, 1, bp_data.apply, bp_data.apply_loc, &qf_apply); 111 CeedQFunctionAddInput(qf_apply, "u", num_comp_u * in_scale, bp_data.in_mode); 112 CeedQFunctionAddInput(qf_apply, "qdata", q_data_size, CEED_EVAL_NONE); 113 CeedQFunctionAddOutput(qf_apply, "v", num_comp_u * out_scale, bp_data.out_mode); 114 115 // Create the mass or diff operator 116 CeedOperatorCreate(ceed, qf_apply, NULL, NULL, &op_apply); 117 CeedOperatorSetField(op_apply, "u", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 118 CeedOperatorSetField(op_apply, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, q_data); 119 CeedOperatorSetField(op_apply, "v", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 120 121 // Cleanup 122 CeedQFunctionDestroy(&qf_setup_geo); 123 CeedOperatorDestroy(&op_setup_geo); 124 } 125 126 // Set up RHS if needed 127 if (setup_rhs) { 128 CeedQFunction qf_setup_rhs; 129 CeedOperator op_setup_rhs; 130 CeedVectorCreate(ceed, num_elem * num_qpts * num_comp_u, target); 131 // Create the q-function that sets up the RHS and true solution 132 CeedQFunctionCreateInterior(ceed, 1, bp_data.setup_rhs, bp_data.setup_rhs_loc, &qf_setup_rhs); 133 CeedQFunctionAddInput(qf_setup_rhs, "x", num_comp_x, CEED_EVAL_INTERP); 134 CeedQFunctionAddInput(qf_setup_rhs, "qdata", q_data_size, CEED_EVAL_NONE); 135 CeedQFunctionAddOutput(qf_setup_rhs, "true solution", num_comp_u, CEED_EVAL_NONE); 136 CeedQFunctionAddOutput(qf_setup_rhs, "rhs", num_comp_u, CEED_EVAL_INTERP); 137 138 // Create the operator that builds the RHS and true solution 139 CeedOperatorCreate(ceed, qf_setup_rhs, NULL, NULL, &op_setup_rhs); 140 CeedOperatorSetField(op_setup_rhs, "x", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 141 CeedOperatorSetField(op_setup_rhs, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, q_data); 142 CeedOperatorSetField(op_setup_rhs, "true solution", elem_restr_u_i, CEED_BASIS_NONE, *target); 143 CeedOperatorSetField(op_setup_rhs, "rhs", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 144 145 // Set up the libCEED context 146 CeedQFunctionContext ctx_rhs_setup; 147 CeedQFunctionContextCreate(ceed, &ctx_rhs_setup); 148 CeedScalar rhs_setup_data[2] = {R, l}; 149 CeedQFunctionContextSetData(ctx_rhs_setup, CEED_MEM_HOST, CEED_COPY_VALUES, sizeof rhs_setup_data, &rhs_setup_data); 150 CeedQFunctionSetContext(qf_setup_rhs, ctx_rhs_setup); 151 CeedQFunctionContextDestroy(&ctx_rhs_setup); 152 153 // Setup RHS and target 154 CeedOperatorApply(op_setup_rhs, x_coord, rhs_ceed, CEED_REQUEST_IMMEDIATE); 155 156 // Cleanup 157 CeedQFunctionDestroy(&qf_setup_rhs); 158 CeedOperatorDestroy(&op_setup_rhs); 159 } 160 // Cleanup 161 CeedVectorDestroy(&x_coord); 162 163 // Save libCEED data required for level 164 data->basis_x = basis_x; 165 data->basis_u = basis_u; 166 data->elem_restr_x = elem_restr_x; 167 data->elem_restr_u = elem_restr_u; 168 data->elem_restr_u_i = elem_restr_u_i; 169 data->elem_restr_qd_i = elem_restr_qd_i; 170 data->qf_apply = qf_apply; 171 data->op_apply = op_apply; 172 data->q_data = q_data; 173 data->x_ceed = x_ceed; 174 data->y_ceed = y_ceed; 175 data->q_data_size = q_data_size; 176 PetscFunctionReturn(PETSC_SUCCESS); 177 }; 178 179 // ----------------------------------------------------------------------------- 180 // Setup libCEED level transfer operator objects 181 // ----------------------------------------------------------------------------- 182 PetscErrorCode CeedLevelTransferSetup(DM dm, Ceed ceed, CeedInt level, CeedInt num_comp_u, CeedData *data, BPData bp_data, Vec fine_mult) { 183 PetscFunctionBeginUser; 184 // Restriction - Fine to corse 185 CeedOperator op_restrict; 186 // Interpolation - Corse to fine 187 CeedOperator op_prolong; 188 // Coarse grid operator 189 CeedOperator op_apply; 190 // Basis 191 CeedBasis basis_u; 192 PetscCall(CreateBasisFromPlex(ceed, dm, 0, 0, 0, 0, bp_data, &basis_u)); 193 194 // --------------------------------------------------------------------------- 195 // Coarse Grid, Prolongation, and Restriction Operators 196 // --------------------------------------------------------------------------- 197 // Create the Operators that compute the prolongation and 198 // restriction between the p-multigrid levels and the coarse grid eval. 199 // --------------------------------------------------------------------------- 200 // Place in libCEED array 201 PetscMemType m_mem_type; 202 PetscCall(VecReadP2C(fine_mult, &m_mem_type, data[level]->x_ceed)); 203 204 CeedOperatorMultigridLevelCreate(data[level]->op_apply, data[level]->x_ceed, data[level - 1]->elem_restr_u, basis_u, &op_apply, &op_prolong, 205 &op_restrict); 206 207 // Restore PETSc vector 208 PetscCall(VecReadC2P(data[level]->x_ceed, m_mem_type, fine_mult)); 209 PetscCall(VecZeroEntries(fine_mult)); 210 // -- Save libCEED data 211 data[level - 1]->op_apply = op_apply; 212 data[level]->op_prolong = op_prolong; 213 data[level]->op_restrict = op_restrict; 214 215 CeedBasisDestroy(&basis_u); 216 PetscFunctionReturn(PETSC_SUCCESS); 217 }; 218 219 PetscErrorCode SetupErrorOperator(DM dm, Ceed ceed, BPData bp_data, CeedInt topo_dim, PetscInt num_comp_x, PetscInt num_comp_u, 220 CeedOperator *op_error) { 221 DM dm_coord; 222 Vec coords; 223 const PetscScalar *coord_array; 224 CeedBasis basis_x, basis_u; 225 CeedElemRestriction elem_restr_x, elem_restr_u, elem_restr_u_i, elem_restr_qd_i; 226 CeedQFunction qf_setup_geo, qf_setup_rhs, qf_error; 227 CeedOperator op_setup_geo, op_setup_rhs; 228 CeedVector x_coord, q_data, target, rhs; 229 PetscInt c_start, c_end, num_elem; 230 CeedInt num_qpts, q_data_size = bp_data.q_data_size; 231 CeedScalar R = 1; // radius of the sphere 232 CeedScalar l = 1.0 / PetscSqrtReal(3.0); // half edge of the inscribed cube 233 234 PetscFunctionBeginUser; 235 PetscCall(DMGetCoordinateDM(dm, &dm_coord)); 236 237 // CEED bases 238 PetscCall(CreateBasisFromPlex(ceed, dm_coord, 0, 0, 0, 0, bp_data, &basis_x)); 239 PetscCall(CreateBasisFromPlex(ceed, dm, 0, 0, 0, 0, bp_data, &basis_u)); 240 241 // CEED restrictions 242 PetscCall(CreateRestrictionFromPlex(ceed, dm_coord, 0, 0, 0, &elem_restr_x)); 243 PetscCall(CreateRestrictionFromPlex(ceed, dm, 0, 0, 0, &elem_restr_u)); 244 245 PetscCall(DMPlexGetHeightStratum(dm, 0, &c_start, &c_end)); 246 num_elem = c_end - c_start; 247 CeedBasisGetNumQuadraturePoints(basis_u, &num_qpts); 248 249 CeedElemRestrictionCreateStrided(ceed, num_elem, num_qpts, num_comp_u, num_comp_u * num_elem * num_qpts, CEED_STRIDES_BACKEND, &elem_restr_u_i); 250 CeedElemRestrictionCreateStrided(ceed, num_elem, num_qpts, q_data_size, q_data_size * num_elem * num_qpts, CEED_STRIDES_BACKEND, &elem_restr_qd_i); 251 252 // Element coordinates 253 PetscCall(DMGetCoordinatesLocal(dm, &coords)); 254 PetscCall(VecGetArrayRead(coords, &coord_array)); 255 256 CeedElemRestrictionCreateVector(elem_restr_x, &x_coord, NULL); 257 CeedVectorSetArray(x_coord, CEED_MEM_HOST, CEED_COPY_VALUES, (PetscScalar *)coord_array); 258 PetscCall(VecRestoreArrayRead(coords, &coord_array)); 259 260 // Create the persistent vectors that will be needed in setup and apply 261 CeedVectorCreate(ceed, q_data_size * num_elem * num_qpts, &q_data); 262 263 // Create the QFunction that builds the context data 264 CeedQFunctionCreateInterior(ceed, 1, bp_data.setup_geo, bp_data.setup_geo_loc, &qf_setup_geo); 265 CeedQFunctionAddInput(qf_setup_geo, "x", num_comp_x, CEED_EVAL_INTERP); 266 CeedQFunctionAddInput(qf_setup_geo, "dx", num_comp_x * topo_dim, CEED_EVAL_GRAD); 267 CeedQFunctionAddInput(qf_setup_geo, "weight", 1, CEED_EVAL_WEIGHT); 268 CeedQFunctionAddOutput(qf_setup_geo, "qdata", q_data_size, CEED_EVAL_NONE); 269 270 // Create the operator that builds the quadrature data 271 CeedOperatorCreate(ceed, qf_setup_geo, NULL, NULL, &op_setup_geo); 272 CeedOperatorSetField(op_setup_geo, "x", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 273 CeedOperatorSetField(op_setup_geo, "dx", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 274 CeedOperatorSetField(op_setup_geo, "weight", CEED_ELEMRESTRICTION_NONE, basis_x, CEED_VECTOR_NONE); 275 CeedOperatorSetField(op_setup_geo, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, CEED_VECTOR_ACTIVE); 276 277 // Setup q_data 278 CeedOperatorApply(op_setup_geo, x_coord, q_data, CEED_REQUEST_IMMEDIATE); 279 280 // Set up target vector 281 CeedElemRestrictionCreateVector(elem_restr_u, &rhs, NULL); 282 CeedVectorCreate(ceed, num_elem * num_qpts * num_comp_u, &target); 283 // Create the q-function that sets up the RHS and true solution 284 CeedQFunctionCreateInterior(ceed, 1, bp_data.setup_rhs, bp_data.setup_rhs_loc, &qf_setup_rhs); 285 CeedQFunctionAddInput(qf_setup_rhs, "x", num_comp_x, CEED_EVAL_INTERP); 286 CeedQFunctionAddInput(qf_setup_rhs, "qdata", q_data_size, CEED_EVAL_NONE); 287 CeedQFunctionAddOutput(qf_setup_rhs, "true solution", num_comp_u, CEED_EVAL_NONE); 288 CeedQFunctionAddOutput(qf_setup_rhs, "rhs", num_comp_u, CEED_EVAL_INTERP); 289 290 // Create the operator that builds the RHS and true solution 291 CeedOperatorCreate(ceed, qf_setup_rhs, NULL, NULL, &op_setup_rhs); 292 CeedOperatorSetField(op_setup_rhs, "x", elem_restr_x, basis_x, CEED_VECTOR_ACTIVE); 293 CeedOperatorSetField(op_setup_rhs, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, q_data); 294 CeedOperatorSetField(op_setup_rhs, "true solution", elem_restr_u_i, CEED_BASIS_NONE, target); 295 CeedOperatorSetField(op_setup_rhs, "rhs", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 296 297 // Set up the libCEED context 298 CeedQFunctionContext ctx_rhs_setup; 299 CeedQFunctionContextCreate(ceed, &ctx_rhs_setup); 300 CeedScalar rhs_setup_data[2] = {R, l}; 301 CeedQFunctionContextSetData(ctx_rhs_setup, CEED_MEM_HOST, CEED_COPY_VALUES, sizeof rhs_setup_data, &rhs_setup_data); 302 CeedQFunctionSetContext(qf_setup_rhs, ctx_rhs_setup); 303 CeedQFunctionContextDestroy(&ctx_rhs_setup); 304 305 // Setup RHS and target 306 CeedOperatorApply(op_setup_rhs, x_coord, rhs, CEED_REQUEST_IMMEDIATE); 307 308 // Set up error operator 309 // Create the error QFunction 310 CeedQFunctionCreateInterior(ceed, 1, bp_data.error, bp_data.error_loc, &qf_error); 311 CeedQFunctionAddInput(qf_error, "u", num_comp_u, CEED_EVAL_INTERP); 312 CeedQFunctionAddInput(qf_error, "true_soln", num_comp_u, CEED_EVAL_NONE); 313 CeedQFunctionAddInput(qf_error, "qdata", q_data_size, CEED_EVAL_NONE); 314 CeedQFunctionAddOutput(qf_error, "error", num_comp_u, CEED_EVAL_INTERP); 315 316 // Create the error operator 317 CeedOperatorCreate(ceed, qf_error, CEED_QFUNCTION_NONE, CEED_QFUNCTION_NONE, op_error); 318 CeedOperatorSetField(*op_error, "u", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 319 CeedOperatorSetField(*op_error, "true_soln", elem_restr_u_i, CEED_BASIS_NONE, target); 320 CeedOperatorSetField(*op_error, "qdata", elem_restr_qd_i, CEED_BASIS_NONE, q_data); 321 CeedOperatorSetField(*op_error, "error", elem_restr_u, basis_u, CEED_VECTOR_ACTIVE); 322 323 // Cleanup 324 CeedQFunctionDestroy(&qf_setup_rhs); 325 CeedOperatorDestroy(&op_setup_rhs); 326 CeedQFunctionDestroy(&qf_setup_geo); 327 CeedOperatorDestroy(&op_setup_geo); 328 CeedQFunctionDestroy(&qf_error); 329 CeedVectorDestroy(&x_coord); 330 CeedVectorDestroy(&rhs); 331 CeedVectorDestroy(&target); 332 CeedVectorDestroy(&q_data); 333 CeedElemRestrictionDestroy(&elem_restr_u_i); 334 CeedElemRestrictionDestroy(&elem_restr_qd_i); 335 CeedElemRestrictionDestroy(&elem_restr_x); 336 CeedElemRestrictionDestroy(&elem_restr_u); 337 CeedBasisDestroy(&basis_x); 338 CeedBasisDestroy(&basis_u); 339 340 PetscFunctionReturn(PETSC_SUCCESS); 341 } 342