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 /// Private header for frontend components of libCEED 10 #ifndef CEED_IMPL_H 11 #define CEED_IMPL_H 12 13 #include <ceed.h> 14 #include <ceed/backend.h> 15 #include <stdbool.h> 16 17 CEED_INTERN const char *CeedJitSourceRootDefault; 18 19 /** @defgroup CeedUser Public API for Ceed 20 @ingroup Ceed 21 */ 22 /** @defgroup CeedBackend Backend API for Ceed 23 @ingroup Ceed 24 */ 25 /** @defgroup CeedDeveloper Internal library functions for Ceed 26 @ingroup Ceed 27 */ 28 /** @defgroup CeedVectorUser Public API for CeedVector 29 @ingroup CeedVector 30 */ 31 /** @defgroup CeedVectorBackend Backend API for CeedVector 32 @ingroup CeedVector 33 */ 34 /** @defgroup CeedVectorDeveloper Internal library functions for CeedVector 35 @ingroup CeedVector 36 */ 37 /** @defgroup CeedElemRestrictionUser Public API for CeedElemRestriction 38 @ingroup CeedElemRestriction 39 */ 40 /** @defgroup CeedElemRestrictionBackend Backend API for CeedElemRestriction 41 @ingroup CeedElemRestriction 42 */ 43 /** @defgroup CeedElemRestrictionDeveloper Internal library functions for CeedElemRestriction 44 @ingroup CeedElemRestriction 45 */ 46 /** @defgroup CeedBasisUser Public API for CeedBasis 47 @ingroup CeedBasis 48 */ 49 /** @defgroup CeedBasisBackend Backend API for CeedBasis 50 @ingroup CeedBasis 51 */ 52 /** @defgroup CeedBasisDeveloper Internal library functions for CeedBasis 53 @ingroup CeedBasis 54 */ 55 /** @defgroup CeedQFunctionUser Public API for CeedQFunction 56 @ingroup CeedQFunction 57 */ 58 /** @defgroup CeedQFunctionBackend Backend API for CeedQFunction 59 @ingroup CeedQFunction 60 */ 61 /** @defgroup CeedQFunctionDeveloper Internal library functions for CeedQFunction 62 @ingroup CeedQFunction 63 */ 64 /** @defgroup CeedOperatorUser Public API for CeedOperator 65 @ingroup CeedOperator 66 */ 67 /** @defgroup CeedOperatorBackend Backend API for CeedOperator 68 @ingroup CeedOperator 69 */ 70 /** @defgroup CeedOperatorDeveloper Internal library functions for CeedOperator 71 @ingroup CeedOperator 72 */ 73 74 // Lookup table field for backend functions 75 typedef struct { 76 const char *func_name; 77 size_t offset; 78 } FOffset; 79 80 // Lookup table field for object delegates 81 typedef struct { 82 char *obj_name; 83 Ceed delegate; 84 } ObjDelegate; 85 86 struct Ceed_private { 87 const char *resource; 88 Ceed delegate; 89 Ceed parent; 90 ObjDelegate *obj_delegates; 91 int obj_delegate_count; 92 Ceed op_fallback_ceed, op_fallback_parent; 93 const char *op_fallback_resource; 94 char **jit_source_roots; 95 CeedInt num_jit_source_roots; 96 int (*Error)(Ceed, const char *, int, const char *, int, const char *, va_list *); 97 int (*SetStream)(Ceed, void *); 98 int (*GetPreferredMemType)(CeedMemType *); 99 int (*Destroy)(Ceed); 100 int (*VectorCreate)(CeedSize, CeedVector); 101 int (*ElemRestrictionCreate)(CeedMemType, CeedCopyMode, const CeedInt *, const bool *, const CeedInt8 *, CeedElemRestriction); 102 int (*ElemRestrictionCreateAtPoints)(CeedMemType, CeedCopyMode, const CeedInt *, const bool *, const CeedInt8 *, CeedElemRestriction); 103 int (*ElemRestrictionCreateBlocked)(CeedMemType, CeedCopyMode, const CeedInt *, const bool *, const CeedInt8 *, CeedElemRestriction); 104 int (*BasisCreateTensorH1)(CeedInt, CeedInt, CeedInt, const CeedScalar *, const CeedScalar *, const CeedScalar *, const CeedScalar *, CeedBasis); 105 int (*BasisCreateH1)(CeedElemTopology, CeedInt, CeedInt, CeedInt, const CeedScalar *, const CeedScalar *, const CeedScalar *, const CeedScalar *, 106 CeedBasis); 107 int (*BasisCreateHdiv)(CeedElemTopology, CeedInt, CeedInt, CeedInt, const CeedScalar *, const CeedScalar *, const CeedScalar *, const CeedScalar *, 108 CeedBasis); 109 int (*BasisCreateHcurl)(CeedElemTopology, CeedInt, CeedInt, CeedInt, const CeedScalar *, const CeedScalar *, const CeedScalar *, const CeedScalar *, 110 CeedBasis); 111 int (*TensorContractCreate)(CeedTensorContract); 112 int (*QFunctionCreate)(CeedQFunction); 113 int (*QFunctionContextCreate)(CeedQFunctionContext); 114 int (*OperatorCreate)(CeedOperator); 115 int (*OperatorCreateAtPoints)(CeedOperator); 116 int (*CompositeOperatorCreate)(CeedOperator); 117 int ref_count; 118 void *data; 119 bool is_debug; 120 bool has_valid_op_fallback_resource; 121 bool is_deterministic; 122 char err_msg[CEED_MAX_RESOURCE_LEN]; 123 FOffset *f_offsets; 124 }; 125 126 struct CeedVector_private { 127 Ceed ceed; 128 int (*HasValidArray)(CeedVector, bool *); 129 int (*HasBorrowedArrayOfType)(CeedVector, CeedMemType, bool *); 130 int (*SetArray)(CeedVector, CeedMemType, CeedCopyMode, CeedScalar *); 131 int (*SetValue)(CeedVector, CeedScalar); 132 int (*SyncArray)(CeedVector, CeedMemType); 133 int (*TakeArray)(CeedVector, CeedMemType, CeedScalar **); 134 int (*GetArray)(CeedVector, CeedMemType, CeedScalar **); 135 int (*GetArrayRead)(CeedVector, CeedMemType, const CeedScalar **); 136 int (*GetArrayWrite)(CeedVector, CeedMemType, CeedScalar **); 137 int (*RestoreArray)(CeedVector); 138 int (*RestoreArrayRead)(CeedVector); 139 int (*Norm)(CeedVector, CeedNormType, CeedScalar *); 140 int (*Scale)(CeedVector, CeedScalar); 141 int (*AXPY)(CeedVector, CeedScalar, CeedVector); 142 int (*AXPBY)(CeedVector, CeedScalar, CeedScalar, CeedVector); 143 int (*PointwiseMult)(CeedVector, CeedVector, CeedVector); 144 int (*Reciprocal)(CeedVector); 145 int (*Destroy)(CeedVector); 146 int ref_count; 147 CeedSize length; 148 uint64_t state; 149 uint64_t num_readers; 150 void *data; 151 }; 152 153 struct CeedElemRestriction_private { 154 Ceed ceed; 155 CeedElemRestriction rstr_base; 156 int (*Apply)(CeedElemRestriction, CeedTransposeMode, CeedVector, CeedVector, CeedRequest *); 157 int (*ApplyUnsigned)(CeedElemRestriction, CeedTransposeMode, CeedVector, CeedVector, CeedRequest *); 158 int (*ApplyUnoriented)(CeedElemRestriction, CeedTransposeMode, CeedVector, CeedVector, CeedRequest *); 159 int (*ApplyAtPointsInElement)(CeedElemRestriction, CeedInt, CeedTransposeMode, CeedVector, CeedVector, CeedRequest *); 160 int (*ApplyBlock)(CeedElemRestriction, CeedInt, CeedTransposeMode, CeedVector, CeedVector, CeedRequest *); 161 int (*GetOffsets)(CeedElemRestriction, CeedMemType, const CeedInt **); 162 int (*GetOrientations)(CeedElemRestriction, CeedMemType, const bool **); 163 int (*GetCurlOrientations)(CeedElemRestriction, CeedMemType, const CeedInt8 **); 164 int (*Destroy)(CeedElemRestriction); 165 int ref_count; 166 CeedInt num_elem; /* number of elements */ 167 CeedInt elem_size; /* number of nodes per element */ 168 CeedInt num_points; /* number of points, for points restriction */ 169 CeedInt num_comp; /* number of components */ 170 CeedInt comp_stride; /* Component stride for L-vector ordering */ 171 CeedSize l_size; /* size of the L-vector, can be used for checking for correct vector sizes */ 172 CeedSize e_size; /* minimum size of the E-vector, can be used for checking for correct vector sizes */ 173 CeedInt block_size; /* number of elements in a batch */ 174 CeedInt num_block; /* number of blocks of elements */ 175 CeedInt *strides; /* strides between [nodes, components, elements] */ 176 CeedInt layout[3]; /* E-vector layout [nodes, components, elements] */ 177 CeedRestrictionType 178 rstr_type; /* initialized in element restriction constructor for default, oriented, curl-oriented, or strided element restriction */ 179 uint64_t num_readers; /* number of instances of offset read only access */ 180 void *data; /* place for the backend to store any data */ 181 }; 182 183 struct CeedBasis_private { 184 Ceed ceed; 185 int (*Apply)(CeedBasis, CeedInt, CeedTransposeMode, CeedEvalMode, CeedVector, CeedVector); 186 int (*ApplyAtPoints)(CeedBasis, CeedInt, CeedTransposeMode, CeedEvalMode, CeedVector, CeedVector, CeedVector); 187 int (*Destroy)(CeedBasis); 188 int ref_count; 189 bool is_tensor_basis; /* flag for tensor basis */ 190 CeedInt dim; /* topological dimension */ 191 CeedElemTopology topo; /* element topology */ 192 CeedInt num_comp; /* number of field components (1 for scalar fields) */ 193 CeedInt P_1d; /* number of nodes in one dimension */ 194 CeedInt Q_1d; /* number of quadrature points in one dimension */ 195 CeedInt P; /* total number of nodes */ 196 CeedInt Q; /* total number of quadrature points */ 197 CeedFESpace fe_space; /* initialized in basis constructor with 1, 2, 3 for H^1, H(div), and H(curl) FE space */ 198 CeedTensorContract contract; /* tensor contraction object */ 199 CeedScalar *q_ref_1d; /* array of length Q1d holding the locations of quadrature points on the 1D reference element [-1, 1] */ 200 CeedScalar *q_weight_1d; /* array of length Q1d holding the quadrature weights on the reference element */ 201 CeedScalar *interp; /* row-major matrix of shape [Q, P] or [dim * Q, P] expressing the values of nodal basis functions or vector basis functions at 202 quadrature points */ 203 CeedScalar *interp_1d; /* row-major matrix of shape [Q1d, P1d] expressing the values of nodal basis functions at quadrature points */ 204 CeedScalar *grad; /* row-major matrix of shape [dim * Q, P] matrix expressing derivatives of nodal basis functions at quadrature points */ 205 CeedScalar *grad_1d; /* row-major matrix of shape [Q1d, P1d] matrix expressing derivatives of nodal basis functions at quadrature points */ 206 CeedScalar *div; /* row-major matrix of shape [Q, P] expressing the divergence of basis functions at quadrature points for H(div) discretizations */ 207 CeedScalar *curl; /* row-major matrix of shape [curl_dim * Q, P], curl_dim = 1 if dim < 3 else dim, expressing the curl of basis functions at 208 quadrature points for H(curl) discretizations */ 209 CeedVector vec_chebyshev; 210 CeedBasis basis_chebyshev; /* basis interpolating from nodes to Chebyshev polynomial coefficients */ 211 void *data; /* place for the backend to store any data */ 212 }; 213 214 struct CeedTensorContract_private { 215 Ceed ceed; 216 int (*Apply)(CeedTensorContract, CeedInt, CeedInt, CeedInt, CeedInt, const CeedScalar *restrict, CeedTransposeMode, const CeedInt, 217 const CeedScalar *restrict, CeedScalar *restrict); 218 int (*Destroy)(CeedTensorContract); 219 int ref_count; 220 void *data; 221 }; 222 223 struct CeedQFunctionField_private { 224 const char *field_name; 225 CeedInt size; 226 CeedEvalMode eval_mode; 227 }; 228 229 struct CeedQFunction_private { 230 Ceed ceed; 231 int (*Apply)(CeedQFunction, CeedInt, CeedVector *, CeedVector *); 232 int (*SetCUDAUserFunction)(CeedQFunction, void *); 233 int (*SetHIPUserFunction)(CeedQFunction, void *); 234 int (*Destroy)(CeedQFunction); 235 int ref_count; 236 CeedInt vec_length; /* Number of quadrature points must be padded to a multiple of vec_length */ 237 CeedQFunctionField *input_fields; 238 CeedQFunctionField *output_fields; 239 CeedInt num_input_fields, num_output_fields; 240 CeedQFunctionUser function; 241 CeedInt user_flop_estimate; 242 const char *user_source; 243 const char *source_path; 244 const char *kernel_name; 245 const char *gallery_name; 246 bool is_gallery; 247 bool is_identity; 248 bool is_fortran; 249 bool is_immutable; 250 bool is_context_writable; 251 CeedQFunctionContext ctx; /* user context for function */ 252 void *data; /* place for the backend to store any data */ 253 }; 254 255 struct CeedQFunctionContext_private { 256 Ceed ceed; 257 int ref_count; 258 int (*HasValidData)(CeedQFunctionContext, bool *); 259 int (*HasBorrowedDataOfType)(CeedQFunctionContext, CeedMemType, bool *); 260 int (*SetData)(CeedQFunctionContext, CeedMemType, CeedCopyMode, void *); 261 int (*TakeData)(CeedQFunctionContext, CeedMemType, void *); 262 int (*GetData)(CeedQFunctionContext, CeedMemType, void *); 263 int (*GetDataRead)(CeedQFunctionContext, CeedMemType, void *); 264 int (*RestoreData)(CeedQFunctionContext); 265 int (*RestoreDataRead)(CeedQFunctionContext); 266 int (*DataDestroy)(CeedQFunctionContext); 267 int (*Destroy)(CeedQFunctionContext); 268 CeedQFunctionContextDataDestroyUser data_destroy_function; 269 CeedMemType data_destroy_mem_type; 270 CeedInt num_fields; 271 CeedInt max_fields; 272 CeedContextFieldLabel *field_labels; 273 uint64_t state; 274 uint64_t num_readers; 275 size_t ctx_size; 276 void *data; 277 }; 278 279 /// Struct to handle the context data to use the Fortran QFunction stub 280 /// @ingroup CeedQFunction 281 struct CeedFortranContext_private { 282 CeedQFunctionContext inner_ctx; 283 void (*f)(void *ctx, int *nq, const CeedScalar *u, const CeedScalar *u1, const CeedScalar *u2, const CeedScalar *u3, const CeedScalar *u4, 284 const CeedScalar *u5, const CeedScalar *u6, const CeedScalar *u7, const CeedScalar *u8, const CeedScalar *u9, const CeedScalar *u10, 285 const CeedScalar *u11, const CeedScalar *u12, const CeedScalar *u13, const CeedScalar *u14, const CeedScalar *u15, CeedScalar *v, 286 CeedScalar *v1, CeedScalar *v2, CeedScalar *v3, CeedScalar *v4, CeedScalar *v5, CeedScalar *v6, CeedScalar *v7, CeedScalar *v8, 287 CeedScalar *v9, CeedScalar *v10, CeedScalar *v11, CeedScalar *v12, CeedScalar *v13, CeedScalar *v14, CeedScalar *v15, int *err); 288 }; 289 typedef struct CeedFortranContext_private *CeedFortranContext; 290 291 struct CeedContextFieldLabel_private { 292 const char *name; 293 const char *description; 294 CeedContextFieldType type; 295 size_t size; 296 size_t num_values; 297 size_t offset; 298 CeedInt num_sub_labels; 299 CeedContextFieldLabel *sub_labels; 300 bool from_op; 301 }; 302 303 struct CeedOperatorField_private { 304 CeedElemRestriction elem_rstr; /* Restriction from L-vector */ 305 CeedBasis basis; /* Basis or CEED_BASIS_NONE for collocated fields */ 306 CeedVector vec; /* State vector for passive fields or CEED_VECTOR_NONE for no vector */ 307 const char *field_name; /* matching QFunction field name */ 308 }; 309 310 struct CeedQFunctionAssemblyData_private { 311 Ceed ceed; 312 int ref_count; 313 bool is_setup; 314 bool reuse_data; 315 bool needs_data_update; 316 CeedVector vec; 317 CeedElemRestriction rstr; 318 }; 319 320 struct CeedOperatorAssemblyData_private { 321 Ceed ceed; 322 CeedInt num_active_bases_in, num_active_bases_out; 323 CeedBasis *active_bases_in, *active_bases_out; 324 CeedElemRestriction *active_elem_rstrs_in, *active_elem_rstrs_out; 325 CeedInt *num_eval_modes_in, *num_eval_modes_out; 326 CeedEvalMode **eval_modes_in, **eval_modes_out; 327 CeedScalar **assembled_bases_in, **assembled_bases_out; 328 CeedSize **eval_mode_offsets_in, **eval_mode_offsets_out, num_output_components; 329 }; 330 331 struct CeedOperator_private { 332 Ceed ceed; 333 CeedOperator op_fallback, op_fallback_parent; 334 int ref_count; 335 int (*LinearAssembleQFunction)(CeedOperator, CeedVector *, CeedElemRestriction *, CeedRequest *); 336 int (*LinearAssembleQFunctionUpdate)(CeedOperator, CeedVector, CeedElemRestriction, CeedRequest *); 337 int (*LinearAssembleDiagonal)(CeedOperator, CeedVector, CeedRequest *); 338 int (*LinearAssembleAddDiagonal)(CeedOperator, CeedVector, CeedRequest *); 339 int (*LinearAssemblePointBlockDiagonal)(CeedOperator, CeedVector, CeedRequest *); 340 int (*LinearAssembleAddPointBlockDiagonal)(CeedOperator, CeedVector, CeedRequest *); 341 int (*LinearAssembleSymbolic)(CeedOperator, CeedSize *, CeedInt **, CeedInt **); 342 int (*LinearAssemble)(CeedOperator, CeedVector); 343 int (*LinearAssembleSingle)(CeedOperator, CeedInt, CeedVector); 344 int (*CreateFDMElementInverse)(CeedOperator, CeedOperator *, CeedRequest *); 345 int (*Apply)(CeedOperator, CeedVector, CeedVector, CeedRequest *); 346 int (*ApplyComposite)(CeedOperator, CeedVector, CeedVector, CeedRequest *); 347 int (*ApplyAdd)(CeedOperator, CeedVector, CeedVector, CeedRequest *); 348 int (*ApplyAddComposite)(CeedOperator, CeedVector, CeedVector, CeedRequest *); 349 int (*ApplyJacobian)(CeedOperator, CeedVector, CeedVector, CeedVector, CeedVector, CeedRequest *); 350 int (*Destroy)(CeedOperator); 351 CeedOperatorField *input_fields; 352 CeedOperatorField *output_fields; 353 CeedSize input_size, output_size; 354 CeedInt num_elem; /* Number of elements */ 355 CeedInt num_qpts; /* Number of quadrature points over all elements */ 356 CeedInt num_fields; /* Number of fields that have been set */ 357 CeedQFunction qf; 358 CeedQFunction dqf; 359 CeedQFunction dqfT; 360 const char *name; 361 bool is_immutable; 362 bool is_interface_setup; 363 bool is_backend_setup; 364 bool is_composite; 365 bool is_at_points; 366 bool has_restriction; 367 CeedQFunctionAssemblyData qf_assembled; 368 CeedOperatorAssemblyData op_assembled; 369 CeedOperator *sub_operators; 370 CeedInt num_suboperators; 371 void *data; 372 CeedInt num_context_labels; 373 CeedInt max_context_labels; 374 CeedContextFieldLabel *context_labels; 375 CeedElemRestriction rstr_points, first_points_rstr; 376 CeedVector point_coords; 377 }; 378 379 #endif // CEED_IMPL_H 380