1 /// Copyright (c) 2017, Lawrence Livermore National Security, LLC. Produced at 2 /// the Lawrence Livermore National Laboratory. LLNL-CODE-734707. All Rights 3 /// reserved. See files LICENSE and NOTICE for details. 4 /// 5 /// This file is part of CEED, a collection of benchmarks, miniapps, software 6 /// libraries and APIs for efficient high-order finite element and spectral 7 /// element discretizations for exascale applications. For more information and 8 /// source code availability see http://github.com/ceed. 9 /// 10 /// The CEED research is supported by the Exascale Computing Project 17-SC-20-SC, 11 /// a collaborative effort of two U.S. Department of Energy organizations (Office 12 /// of Science and the National Nuclear Security Administration) responsible for 13 /// the planning and preparation of a capable exascale ecosystem, including 14 /// software, applications, hardware, advanced system engineering and early 15 /// testbed platforms, in support of the nation's exascale computing imperative. 16 17 /// @file 18 /// Public header for user and utility components of libCEED 19 #ifndef _ceed_h 20 #define _ceed_h 21 22 /// @defgroup Ceed Ceed: core components 23 /// @defgroup CeedVector CeedVector: storing and manipulating vectors 24 /// @defgroup CeedElemRestriction CeedElemRestriction: restriction from local vectors to elements 25 /// @defgroup CeedBasis CeedBasis: fully discrete finite element-like objects 26 /// @defgroup CeedQFunction CeedQFunction: independent operations at quadrature points 27 /// @defgroup CeedOperator CeedOperator: composed FE-type operations on vectors 28 /// 29 /// @page FunctionCategories libCEED: Types of Functions 30 /// libCEED provides three different header files depending upon the type of 31 /// functions a user requires. 32 /// @section Utility Utility Functions 33 /// These functions are intended general utilities that may be useful to 34 /// libCEED developers and users. These functions can generally be found in 35 /// "ceed.h". 36 /// @section User User Functions 37 /// These functions are intended to be used by general users of libCEED 38 /// and can generally be found in "ceed.h". 39 /// @section Backend Backend Developer Functions 40 /// These functions are intended to be used by backend developers of 41 /// libCEED and can generally be found in "ceed-backend.h". 42 /// @section Developer Library Developer Functions 43 /// These functions are intended to be used by library developers of 44 /// libCEED and can generally be found in "ceed-impl.h". 45 46 /** 47 CEED_EXTERN is used in this header to denote all publicly visible symbols. 48 49 No other file should declare publicly visible symbols, thus it should never be 50 used outside ceed.h. 51 */ 52 #ifdef __cplusplus 53 # define CEED_EXTERN extern "C" 54 #else 55 # define CEED_EXTERN extern 56 #endif 57 58 /** 59 @ingroup CeedQFunction 60 This macro populates the correct function annotations for User QFunction 61 source for code generation backends or populates default values for CPU 62 backends. 63 **/ 64 #ifndef CEED_QFUNCTION 65 #define CEED_QFUNCTION(name) \ 66 static const char name ## _loc[] = __FILE__ ":" #name; \ 67 static int name 68 #endif 69 70 /** 71 @ingroup CeedQFunction 72 Using VLA syntax to reshape User QFunction inputs and outputs can make 73 user code more readable. VLA is a C99 feature that is not supported by 74 the C++ dialect used by CUDA. This macro allows users to use the VLA 75 syntax with the CUDA backends. 76 **/ 77 #ifndef CEED_Q_VLA 78 # define CEED_Q_VLA Q 79 #endif 80 81 /** 82 @ingroup Ceed 83 This macro provides the appropriate SIMD Pragma for the compilation 84 environment. Code generation backends may redefine this macro, as needed. 85 **/ 86 #ifndef CeedPragmaSIMD 87 # if defined(__INTEL_COMPILER) 88 # define CeedPragmaSIMD _Pragma("vector") 89 // Cannot use Intel pragma ivdep because it miscompiles unpacking symmetric tensors, as in 90 // Poisson2DApply, where the SIMD loop body contains temporaries such as the following. 91 // 92 // const CeedScalar dXdxdXdxT[2][2] = {{qd[i+0*Q], qd[i+2*Q]}, 93 // {qd[i+2*Q], qd[i+1*Q]}}; 94 // for (int j=0; j<2; j++) 95 // vg[i+j*Q] = (du[0] * dXdxdXdxT[0][j] + du[1] * dXdxdXdxT[1][j]); 96 // 97 // Miscompilation with pragma ivdep observed with icc (ICC) 19.0.5.281 20190815 98 // at -O2 and above. 99 # elif defined(__GNUC__) && __GNUC__ >= 5 100 # define CeedPragmaSIMD _Pragma("GCC ivdep") 101 # elif defined(_OPENMP) && _OPENMP >= 201307 // OpenMP-4.0 (July, 2013) 102 # define CeedPragmaSIMD _Pragma("omp simd") 103 # else 104 # define CeedPragmaSIMD 105 # endif 106 #endif 107 108 #include <assert.h> 109 #include <stdint.h> 110 #include <stddef.h> 111 #include <stdarg.h> 112 #include <stdio.h> 113 #include <stdbool.h> 114 115 /// Integer type, used for indexing 116 /// @ingroup Ceed 117 typedef int32_t CeedInt; 118 /// Scalar (floating point) type 119 /// @ingroup Ceed 120 typedef double CeedScalar; 121 122 /// Library context created by CeedInit() 123 /// @ingroup CeedUser 124 typedef struct Ceed_private *Ceed; 125 /// Non-blocking Ceed interfaces return a CeedRequest. 126 /// To perform an operation immediately, pass \ref CEED_REQUEST_IMMEDIATE instead. 127 /// @ingroup CeedUser 128 typedef struct CeedRequest_private *CeedRequest; 129 /// Handle for vectors over the field \ref CeedScalar 130 /// @ingroup CeedVectorUser 131 typedef struct CeedVector_private *CeedVector; 132 /// Handle for object describing restriction to elements 133 /// @ingroup CeedElemRestrictionUser 134 typedef struct CeedElemRestriction_private *CeedElemRestriction; 135 /// Handle for object describing discrete finite element evaluations 136 /// @ingroup CeedBasisUser 137 typedef struct CeedBasis_private *CeedBasis; 138 /// Handle for object describing functions evaluated independently at quadrature points 139 /// @ingroup CeedQFunctionUser 140 typedef struct CeedQFunction_private *CeedQFunction; 141 /// Handle for object describing FE-type operators acting on vectors 142 /// 143 /// Given an element restriction \f$E\f$, basis evaluator \f$B\f$, and 144 /// quadrature function\f$f\f$, a CeedOperator expresses operations of the form 145 /// $$ E^T B^T f(B E u) $$ 146 /// acting on the vector \f$u\f$. 147 /// @ingroup CeedOperatorUser 148 typedef struct CeedOperator_private *CeedOperator; 149 150 CEED_EXTERN int CeedInit(const char *resource, Ceed *ceed); 151 CEED_EXTERN int CeedGetResource(Ceed ceed, const char **resource); 152 CEED_EXTERN int CeedIsDeterministic(Ceed ceed, bool *isDeterministic); 153 CEED_EXTERN int CeedView(Ceed ceed, FILE *stream); 154 CEED_EXTERN int CeedDestroy(Ceed *ceed); 155 156 CEED_EXTERN int CeedErrorImpl(Ceed, const char *, int, const char *, int, 157 const char *, ...); 158 /// Raise an error on ceed object 159 /// 160 /// @param ceed Ceed library context or NULL 161 /// @param ecode Error code (int) 162 /// @param ... printf-style format string followed by arguments as needed 163 /// 164 /// @ingroup Ceed 165 /// @sa CeedSetErrorHandler() 166 #if defined(__clang__) 167 /// Use nonstandard ternary to convince the compiler/clang-tidy that this 168 /// function never returns zero. 169 # define CeedError(ceed, ecode, ...) \ 170 (CeedErrorImpl((ceed), __FILE__, __LINE__, __func__, (ecode), __VA_ARGS__) ?: (ecode)) 171 #else 172 # define CeedError(ceed, ecode, ...) \ 173 CeedErrorImpl((ceed), __FILE__, __LINE__, __func__, (ecode), __VA_ARGS__) ?: (ecode) 174 #endif 175 176 /// Specify memory type 177 /// 178 /// Many Ceed interfaces take or return pointers to memory. This enum is used to 179 /// specify where the memory being provided or requested must reside. 180 /// @ingroup Ceed 181 typedef enum { 182 /// Memory resides on the host 183 CEED_MEM_HOST, 184 /// Memory resides on a device (corresponding to \ref Ceed resource) 185 CEED_MEM_DEVICE, 186 } CeedMemType; 187 188 CEED_EXTERN const char *const CeedMemTypes[]; 189 190 CEED_EXTERN int CeedGetPreferredMemType(Ceed ceed, CeedMemType *type); 191 192 /// Conveys ownership status of arrays passed to Ceed interfaces. 193 /// @ingroup Ceed 194 typedef enum { 195 /// Implementation will copy the values and not store the passed pointer. 196 CEED_COPY_VALUES, 197 /// Implementation can use and modify the data provided by the user, but does 198 /// not take ownership. 199 CEED_USE_POINTER, 200 /// Implementation takes ownership of the pointer and will free using 201 /// CeedFree() when done using it. The user should not assume that the 202 /// pointer remains valid after ownership has been transferred. Note that 203 /// arrays allocated using C++ operator new or other allocators cannot 204 /// generally be freed using CeedFree(). CeedFree() is capable of freeing any 205 /// memory that can be freed using free(3). 206 CEED_OWN_POINTER, 207 } CeedCopyMode; 208 209 /// Denotes type of vector norm to be computed 210 /// @ingroup CeedVector 211 typedef enum { 212 /// L_1 norm: sum_i |x_i| 213 CEED_NORM_1, 214 /// L_2 norm: sqrt(sum_i |x_i|^2) 215 CEED_NORM_2, 216 /// L_Infinity norm: max_i |x_i| 217 CEED_NORM_MAX, 218 } CeedNormType; 219 220 CEED_EXTERN const char *const CeedCopyModes[]; 221 222 CEED_EXTERN int CeedVectorCreate(Ceed ceed, CeedInt len, CeedVector *vec); 223 CEED_EXTERN int CeedVectorSetArray(CeedVector vec, CeedMemType mtype, 224 CeedCopyMode cmode, CeedScalar *array); 225 CEED_EXTERN int CeedVectorSetValue(CeedVector vec, CeedScalar value); 226 CEED_EXTERN int CeedVectorSyncArray(CeedVector vec, CeedMemType mtype); 227 CEED_EXTERN int CeedVectorGetArray(CeedVector vec, CeedMemType mtype, 228 CeedScalar **array); 229 CEED_EXTERN int CeedVectorGetArrayRead(CeedVector vec, CeedMemType mtype, 230 const CeedScalar **array); 231 CEED_EXTERN int CeedVectorRestoreArray(CeedVector vec, CeedScalar **array); 232 CEED_EXTERN int CeedVectorRestoreArrayRead(CeedVector vec, 233 const CeedScalar **array); 234 CEED_EXTERN int CeedVectorNorm(CeedVector vec, CeedNormType type, 235 CeedScalar *norm); 236 CEED_EXTERN int CeedVectorView(CeedVector vec, const char *fpfmt, FILE *stream); 237 CEED_EXTERN int CeedVectorGetLength(CeedVector vec, CeedInt *length); 238 CEED_EXTERN int CeedVectorDestroy(CeedVector *vec); 239 240 CEED_EXTERN CeedRequest *const CEED_REQUEST_IMMEDIATE; 241 CEED_EXTERN CeedRequest *const CEED_REQUEST_ORDERED; 242 CEED_EXTERN int CeedRequestWait(CeedRequest *req); 243 244 /// Argument for CeedOperatorSetField that vector is collocated with 245 /// quadrature points, used with QFunction eval mode CEED_EVAL_NONE 246 /// or CEED_EVAL_INTERP only, not with CEED_EVAL_GRAD, CEED_EVAL_DIV, 247 /// or CEED_EVAL_CURL 248 /// @ingroup CeedBasis 249 CEED_EXTERN const CeedBasis CEED_BASIS_COLLOCATED; 250 251 /// Argument for CeedOperatorSetField to use active input or output 252 /// @ingroup CeedVector 253 CEED_EXTERN const CeedVector CEED_VECTOR_ACTIVE; 254 255 /// Argument for CeedOperatorSetField to use no vector, used with 256 /// qfunction input with eval mode CEED_EVAL_WEIGHT 257 /// @ingroup CeedVector 258 CEED_EXTERN const CeedVector CEED_VECTOR_NONE; 259 260 /// Argument for CeedOperatorSetField to use no ElemRestriction, only used with 261 /// eval mode CEED_EVAL_WEIGHT. 262 /// @ingroup CeedElemRestriction 263 CEED_EXTERN const CeedElemRestriction CEED_ELEMRESTRICTION_NONE; 264 265 /// Argument for CeedOperatorCreate that QFunction is not created by user. 266 /// Only used for QFunctions dqf and dqfT. If implemented, a backend may 267 /// attempt to provide the action of these QFunctions. 268 /// @ingroup CeedQFunction 269 CEED_EXTERN const CeedQFunction CEED_QFUNCTION_NONE; 270 271 /// Denotes whether a linear transformation or its transpose should be applied 272 /// @ingroup CeedBasis 273 typedef enum { 274 /// Apply the linear transformation 275 CEED_NOTRANSPOSE, 276 /// Apply the transpose 277 CEED_TRANSPOSE 278 } CeedTransposeMode; 279 280 CEED_EXTERN const char *const CeedTransposeModes[]; 281 282 /// Argument for CeedElemRestrictionCreateStrided that L-vector is in 283 /// the Ceed backend's preferred layout. This argument should only be used 284 /// with vectors created by a Ceed backend. 285 /// @ingroup CeedElemRestriction 286 CEED_EXTERN const CeedInt CEED_STRIDES_BACKEND[3]; 287 288 CEED_EXTERN int CeedElemRestrictionCreate(Ceed ceed, CeedInt nelem, 289 CeedInt elemsize, CeedInt ncomp, CeedInt compstride, CeedInt lsize, 290 CeedMemType mtype, CeedCopyMode cmode, const CeedInt *offsets, 291 CeedElemRestriction *rstr); 292 CEED_EXTERN int CeedElemRestrictionCreateStrided(Ceed ceed, 293 CeedInt nelem, CeedInt elemsize, CeedInt ncomp, CeedInt lsize, 294 const CeedInt strides[3], CeedElemRestriction *rstr); 295 CEED_EXTERN int CeedElemRestrictionCreateBlocked(Ceed ceed, CeedInt nelem, 296 CeedInt elemsize, CeedInt blksize, CeedInt ncomp, CeedInt compstride, 297 CeedInt lsize, CeedMemType mtype, CeedCopyMode cmode, 298 const CeedInt *offsets, CeedElemRestriction *rstr); 299 CEED_EXTERN int CeedElemRestrictionCreateBlockedStrided(Ceed ceed, 300 CeedInt nelem, CeedInt elemsize, CeedInt blksize, CeedInt ncomp, 301 CeedInt lsize, const CeedInt strides[3], CeedElemRestriction *rstr); 302 CEED_EXTERN int CeedElemRestrictionCreateVector(CeedElemRestriction rstr, 303 CeedVector *lvec, CeedVector *evec); 304 CEED_EXTERN int CeedElemRestrictionApply(CeedElemRestriction rstr, 305 CeedTransposeMode tmode, CeedVector u, CeedVector ru, CeedRequest *request); 306 CEED_EXTERN int CeedElemRestrictionApplyBlock(CeedElemRestriction rstr, 307 CeedInt block, CeedTransposeMode tmode, CeedVector u, CeedVector ru, 308 CeedRequest *request); 309 CEED_EXTERN int CeedElemRestrictionGetCompStride(CeedElemRestriction rstr, 310 CeedInt *compstride); 311 CEED_EXTERN int CeedElemRestrictionGetNumElements(CeedElemRestriction rstr, 312 CeedInt *numelem); 313 CEED_EXTERN int CeedElemRestrictionGetElementSize(CeedElemRestriction rstr, 314 CeedInt *elemsize); 315 CEED_EXTERN int CeedElemRestrictionGetLVectorSize(CeedElemRestriction rstr, 316 CeedInt *lsize); 317 CEED_EXTERN int CeedElemRestrictionGetNumComponents(CeedElemRestriction rstr, 318 CeedInt *numcomp); 319 CEED_EXTERN int CeedElemRestrictionGetNumBlocks(CeedElemRestriction rstr, 320 CeedInt *numblk); 321 CEED_EXTERN int CeedElemRestrictionGetBlockSize(CeedElemRestriction rstr, 322 CeedInt *blksize); 323 CEED_EXTERN int CeedElemRestrictionGetMultiplicity(CeedElemRestriction rstr, 324 CeedVector mult); 325 CEED_EXTERN int CeedElemRestrictionView(CeedElemRestriction rstr, FILE *stream); 326 CEED_EXTERN int CeedElemRestrictionDestroy(CeedElemRestriction *rstr); 327 328 // The formalism here is that we have the structure 329 // \int_\Omega v^T f_0(u, \nabla u, qdata) + (\nabla v)^T f_1(u, \nabla u, qdata) 330 // where gradients are with respect to the reference element. 331 332 /// Basis evaluation mode 333 /// 334 /// Modes can be bitwise ORed when passing to most functions. 335 /// @ingroup CeedBasis 336 typedef enum { 337 /// Perform no evaluation (either because there is no data or it is already at 338 /// quadrature points) 339 CEED_EVAL_NONE = 0, 340 /// Interpolate from nodes to quadrature points 341 CEED_EVAL_INTERP = 1, 342 /// Evaluate gradients at quadrature points from input in a nodal basis 343 CEED_EVAL_GRAD = 2, 344 /// Evaluate divergence at quadrature points from input in a nodal basis 345 CEED_EVAL_DIV = 4, 346 /// Evaluate curl at quadrature points from input in a nodal basis 347 CEED_EVAL_CURL = 8, 348 /// Using no input, evaluate quadrature weights on the reference element 349 CEED_EVAL_WEIGHT = 16, 350 } CeedEvalMode; 351 352 CEED_EXTERN const char *const CeedEvalModes[]; 353 354 /// Type of quadrature; also used for location of nodes 355 /// @ingroup CeedBasis 356 typedef enum { 357 /// Gauss-Legendre quadrature 358 CEED_GAUSS = 0, 359 /// Gauss-Legendre-Lobatto quadrature 360 CEED_GAUSS_LOBATTO = 1, 361 } CeedQuadMode; 362 363 CEED_EXTERN const char *const CeedQuadModes[]; 364 365 /// Type of basis shape to create non-tensor H1 element basis 366 /// 367 /// Dimension can be extracted with bitwise AND 368 /// (CeedElemTopology & 2**(dim + 2)) == TRUE 369 /// @ingroup CeedBasis 370 typedef enum { 371 /// Line 372 CEED_LINE = 1 << 16 | 0, 373 /// Triangle - 2D shape 374 CEED_TRIANGLE = 2 << 16 | 1, 375 /// Quadralateral - 2D shape 376 CEED_QUAD = 2 << 16 | 2, 377 /// Tetrahedron - 3D shape 378 CEED_TET = 3 << 16 | 3, 379 /// Pyramid - 3D shape 380 CEED_PYRAMID = 3 << 16 | 4, 381 /// Prism - 3D shape 382 CEED_PRISM = 3 << 16 | 5, 383 /// Hexehedron - 3D shape 384 CEED_HEX = 3 << 16 | 6, 385 } CeedElemTopology; 386 387 CEED_EXTERN const char *const CeedElemTopologies[]; 388 389 CEED_EXTERN int CeedBasisCreateTensorH1Lagrange(Ceed ceed, CeedInt dim, 390 CeedInt ncomp, CeedInt P, CeedInt Q, CeedQuadMode qmode, CeedBasis *basis); 391 CEED_EXTERN int CeedBasisCreateTensorH1(Ceed ceed, CeedInt dim, CeedInt ncomp, 392 CeedInt P1d, CeedInt Q1d, 393 const CeedScalar *interp1d, 394 const CeedScalar *grad1d, 395 const CeedScalar *qref1d, 396 const CeedScalar *qweight1d, 397 CeedBasis *basis); 398 CEED_EXTERN int CeedBasisCreateH1(Ceed ceed, CeedElemTopology topo, 399 CeedInt ncomp, 400 CeedInt nnodes, CeedInt nqpts, 401 const CeedScalar *interp, 402 const CeedScalar *grad, 403 const CeedScalar *qref, 404 const CeedScalar *qweight, CeedBasis *basis); 405 CEED_EXTERN int CeedBasisView(CeedBasis basis, FILE *stream); 406 CEED_EXTERN int CeedBasisApply(CeedBasis basis, CeedInt nelem, 407 CeedTransposeMode tmode, 408 CeedEvalMode emode, CeedVector u, CeedVector v); 409 CEED_EXTERN int CeedBasisGetDimension(CeedBasis basis, CeedInt *dim); 410 CEED_EXTERN int CeedBasisGetNumComponents(CeedBasis basis, CeedInt *numcomp); 411 CEED_EXTERN int CeedBasisGetNumNodes(CeedBasis basis, CeedInt *P); 412 CEED_EXTERN int CeedBasisGetNumNodes1D(CeedBasis basis, CeedInt *P1d); 413 CEED_EXTERN int CeedBasisGetNumQuadraturePoints(CeedBasis basis, CeedInt *Q); 414 CEED_EXTERN int CeedBasisGetNumQuadraturePoints1D(CeedBasis basis, 415 CeedInt *Q1d); 416 CEED_EXTERN int CeedBasisGetQRef(CeedBasis basis, const CeedScalar **qref); 417 CEED_EXTERN int CeedBasisGetQWeights(CeedBasis basis, 418 const CeedScalar **qweight); 419 CEED_EXTERN int CeedBasisGetInterp(CeedBasis basis, const CeedScalar **interp); 420 CEED_EXTERN int CeedBasisGetInterp1D(CeedBasis basis, 421 const CeedScalar **interp1d); 422 CEED_EXTERN int CeedBasisGetGrad(CeedBasis basis, const CeedScalar **grad); 423 CEED_EXTERN int CeedBasisGetGrad1D(CeedBasis basis, const CeedScalar **grad1d); 424 CEED_EXTERN int CeedBasisDestroy(CeedBasis *basis); 425 426 CEED_EXTERN int CeedGaussQuadrature(CeedInt Q, CeedScalar *qref1d, 427 CeedScalar *qweight1d); 428 CEED_EXTERN int CeedLobattoQuadrature(CeedInt Q, CeedScalar *qref1d, 429 CeedScalar *qweight1d); 430 CEED_EXTERN int CeedQRFactorization(Ceed ceed, CeedScalar *mat, CeedScalar *tau, 431 CeedInt m, CeedInt n); 432 CEED_EXTERN int CeedSymmetricSchurDecomposition(Ceed ceed, CeedScalar *mat, 433 CeedScalar *lambda, CeedInt n); 434 CEED_EXTERN int CeedSimultaneousDiagonalization(Ceed ceed, CeedScalar *matA, 435 CeedScalar *matB, CeedScalar *x, CeedScalar *lambda, CeedInt n); 436 437 /** Handle for the object describing the user CeedQFunction 438 439 @param ctx user-defined context set using CeedQFunctionSetContext() or NULL 440 441 @param Q number of quadrature points at which to evaluate 442 443 @param in array of pointers to each input argument in the order provided 444 by the user in CeedQFunctionAddInput(). Each array has shape 445 `[dim, ncomp, Q]` where `dim` is the geometric dimension for 446 \ref CEED_EVAL_GRAD (`dim=1` for \ref CEED_EVAL_INTERP) and 447 `ncomp` is the number of field components (`ncomp=1` for 448 scalar fields). This results in indexing the `i`th input at 449 quadrature point `j` as `in[i][(d*ncomp + c)*Q + j]`. 450 451 @param out array of pointers to each output array in the order provided 452 using CeedQFunctionAddOutput(). The shapes are as above for 453 \a in. 454 455 @return An error code: 0 - success, otherwise - failure 456 457 @ingroup CeedQFunction 458 **/ 459 typedef int (*CeedQFunctionUser)(void *ctx, const CeedInt Q, 460 const CeedScalar *const *in, 461 CeedScalar *const *out); 462 463 CEED_EXTERN int CeedQFunctionCreateInterior(Ceed ceed, CeedInt vlength, 464 CeedQFunctionUser f, const char *source, CeedQFunction *qf); 465 CEED_EXTERN int CeedQFunctionCreateInteriorByName(Ceed ceed, const char *name, 466 CeedQFunction *qf); 467 CEED_EXTERN int CeedQFunctionCreateIdentity(Ceed ceed, CeedInt size, 468 CeedEvalMode inmode, CeedEvalMode outmode, CeedQFunction *qf); 469 CEED_EXTERN int CeedQFunctionAddInput(CeedQFunction qf, const char *fieldname, 470 CeedInt size, CeedEvalMode emode); 471 CEED_EXTERN int CeedQFunctionAddOutput(CeedQFunction qf, const char *fieldname, 472 CeedInt size, CeedEvalMode emode); 473 CEED_EXTERN int CeedQFunctionSetContext(CeedQFunction qf, void *ctx, 474 size_t ctxsize); 475 CEED_EXTERN int CeedQFunctionView(CeedQFunction qf, FILE *stream); 476 CEED_EXTERN int CeedQFunctionApply(CeedQFunction qf, CeedInt Q, 477 CeedVector *u, CeedVector *v); 478 CEED_EXTERN int CeedQFunctionDestroy(CeedQFunction *qf); 479 480 CEED_EXTERN int CeedOperatorCreate(Ceed ceed, CeedQFunction qf, 481 CeedQFunction dqf, CeedQFunction dqfT, 482 CeedOperator *op); 483 CEED_EXTERN int CeedCompositeOperatorCreate(Ceed ceed, CeedOperator *op); 484 CEED_EXTERN int CeedOperatorSetField(CeedOperator op, const char *fieldname, 485 CeedElemRestriction r, CeedBasis b, 486 CeedVector v); 487 CEED_EXTERN int CeedCompositeOperatorAddSub(CeedOperator compositeop, 488 CeedOperator subop); 489 CEED_EXTERN int CeedOperatorLinearAssembleQFunction(CeedOperator op, 490 CeedVector *assembled, CeedElemRestriction *rstr, CeedRequest *request); 491 CEED_EXTERN int CeedOperatorLinearAssembleDiagonal(CeedOperator op, 492 CeedVector assembled, CeedRequest *request); 493 CEED_EXTERN int CeedOperatorLinearAssembleAddDiagonal(CeedOperator op, 494 CeedVector assembled, CeedRequest *request); 495 CEED_EXTERN int CeedOperatorLinearAssemblePointBlockDiagonal(CeedOperator op, 496 CeedVector assembled, CeedRequest *request); 497 CEED_EXTERN int CeedOperatorLinearAssembleAddPointBlockDiagonal(CeedOperator op, 498 CeedVector assembled, CeedRequest *request); 499 CEED_EXTERN int CeedOperatorCreateFDMElementInverse(CeedOperator op, 500 CeedOperator *fdminv, CeedRequest *request); 501 CEED_EXTERN int CeedOperatorView(CeedOperator op, FILE *stream); 502 CEED_EXTERN int CeedOperatorApply(CeedOperator op, CeedVector in, 503 CeedVector out, CeedRequest *request); 504 CEED_EXTERN int CeedOperatorApplyAdd(CeedOperator op, CeedVector in, 505 CeedVector out, CeedRequest *request); 506 CEED_EXTERN int CeedOperatorDestroy(CeedOperator *op); 507 508 /** 509 @brief Return integer power 510 511 @param[in] base The base to exponentiate 512 @param[in] power The power to raise the base to 513 514 @return base^power 515 516 @ref Utility 517 **/ 518 static inline CeedInt CeedIntPow(CeedInt base, CeedInt power) { 519 CeedInt result = 1; 520 while (power) { 521 if (power & 1) result *= base; 522 power >>= 1; 523 base *= base; 524 } 525 return result; 526 } 527 528 /** 529 @brief Return minimum of two integers 530 531 @param[in] a The first integer to compare 532 @param[in] b The second integer to compare 533 534 @return The minimum of the two integers 535 536 @ref Utility 537 **/ 538 static inline CeedInt CeedIntMin(CeedInt a, CeedInt b) { return a < b ? a : b; } 539 540 #endif 541