xref: /libCEED/include/ceed/ceed.h (revision b0f67a9c1aeeb4d82b4724afaae1227ff4e81f15) 
1 /// Copyright (c) 2017-2026, 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 /// Public header for user and utility components of libCEED
10 #pragma once
11 
12 /// @defgroup Ceed Ceed: core components
13 /// @defgroup CeedVector CeedVector: storing and manipulating vectors
14 /// @defgroup CeedElemRestriction CeedElemRestriction: restriction from local vectors to elements
15 /// @defgroup CeedBasis CeedBasis: fully discrete finite element-like objects
16 /// @defgroup CeedQFunction CeedQFunction: independent operations at quadrature points
17 /// @defgroup CeedOperator CeedOperator: composed FE-type operations on vectors
18 ///
19 /// @page FunctionCategories libCEED: Types of Functions libCEED provides three different header files depending upon the type of functions a user
20 /// requires.
21 /// @section Utility Utility Functions
22 ///    These functions are intended general utilities that may be useful to libCEED developers and users.
23 ///    These functions can generally be found in `"ceed.h"`.
24 /// @section User User Functions
25 ///    These functions are intended to be used by general users of libCEED and can generally be found in `"ceed.h"`.
26 /// @section Advanced Advanced Functions
27 ///    These functions are intended to be used by advanced users of libCEED and can generally be found in `"ceed.h"`.
28 /// @section Backend Backend Developer Functions
29 ///    These functions are intended to be used by backend developers of libCEED and can generally be found in `"ceed-backend.h"`.
30 /// @section Developer Library Developer Functions
31 ///    These functions are intended to be used by library developers of libCEED and can generally be found in `"ceed-impl.h"`.
32 
33 #if !defined(CEED_SKIP_VISIBILITY)
34 #define CEED_VISIBILITY(mode) __attribute__((visibility(#mode)))
35 #else
36 #define CEED_VISIBILITY(mode)
37 #endif
38 
39 /*
40   CEED_EXTERN is used in this header to denote all publicly visible symbols.
41 
42   No other file should declare publicly visible symbols, thus it should never be used outside `"ceed.h"`.
43 */
44 #if defined(__clang_analyzer__)
45 #define CEED_EXTERN extern
46 #elif defined(__cplusplus)
47 #define CEED_EXTERN extern "C" CEED_VISIBILITY(default)
48 #else
49 #define CEED_EXTERN extern CEED_VISIBILITY(default)
50 #endif
51 
52 #include <stdarg.h>
53 #include <stdbool.h>
54 #include <stdio.h>
55 
56 /*
57   Typedefs and macros used in public interfaces and user `CeedQFunction` source
58 */
59 #include "types.h"  // IWYU pragma: export
60 
61 /*
62   This line prevents IWYU from suggesting "ceed.h"
63 */
64 // IWYU pragma: private, include <ceed.h>
65 
66 /// Library context created by CeedInit()
67 /// @ingroup CeedUser
68 typedef struct Ceed_private *Ceed;
69 /// Non-blocking Ceed interfaces return a CeedRequest.
70 /// To perform an operation immediately, pass @ref CEED_REQUEST_IMMEDIATE instead.
71 /// @ingroup CeedUser
72 typedef struct CeedRequest_private *CeedRequest;
73 /// Handle for vectors over the field @ref CeedScalar
74 /// @ingroup CeedVectorUser
75 typedef struct CeedVector_private *CeedVector;
76 /// Handle for object describing restriction to elements
77 /// @ingroup CeedElemRestrictionUser
78 typedef struct CeedElemRestriction_private *CeedElemRestriction;
79 /// Handle for object describing discrete finite element evaluations
80 /// @ingroup CeedBasisUser
81 typedef struct CeedBasis_private *CeedBasis;
82 /// Handle for object describing CeedQFunction fields
83 /// @ingroup CeedQFunctionBackend
84 typedef struct CeedQFunctionField_private *CeedQFunctionField;
85 /// Handle for object describing functions evaluated independently at quadrature points
86 /// @ingroup CeedQFunctionUser
87 typedef struct CeedQFunction_private *CeedQFunction;
88 /// Handle for object describing CeedOperator fields
89 /// @ingroup CeedOperatorBackend
90 typedef struct CeedOperatorField_private *CeedOperatorField;
91 /// Handle for object describing context data for CeedQFunctions
92 /// @ingroup CeedQFunctionUser
93 typedef struct CeedQFunctionContext_private *CeedQFunctionContext;
94 /// Handle for object describing registered fields for CeedQFunctionContext
95 /// @ingroup CeedQFunctionUser
96 typedef struct CeedContextFieldLabel_private *CeedContextFieldLabel;
97 /// Handle for object describing FE-type operators acting on vectors
98 ///
99 /// Given an element restriction \f$E\f$, basis evaluator \f$B\f$, and quadrature function\f$f\f$, a `CeedOperator` expresses operations of the form \f$E^T B^T f(B E u)\f$ acting on the vector \f$u\f$.
100 /// @ingroup CeedOperatorUser
101 typedef struct CeedOperator_private *CeedOperator;
102 /// Generic type for all libCEED objects to support common functionality, such as viewing
103 /// @ingroup CeedUser
104 typedef struct CeedObject_private *CeedObject;
105 
106 CEED_EXTERN int  CeedObjectView(CeedObject obj, FILE *stream);
107 CEED_EXTERN int  CeedObjectGetCeed(CeedObject obj, Ceed *ceed);
108 CEED_EXTERN Ceed CeedObjectReturnCeed(CeedObject obj);
109 
110 CEED_EXTERN int CeedRegistryGetList(size_t *n, char ***const resources, CeedInt **array);
111 CEED_EXTERN int CeedInit(const char *resource, Ceed *ceed);
112 CEED_EXTERN int CeedSetStream(Ceed ceed, void *handle);
113 CEED_EXTERN int CeedReferenceCopy(Ceed ceed, Ceed *ceed_copy);
114 CEED_EXTERN int CeedGetResource(Ceed ceed, const char **resource);
115 CEED_EXTERN int CeedIsDeterministic(Ceed ceed, bool *is_deterministic);
116 CEED_EXTERN int CeedAddJitSourceRoot(Ceed ceed, const char *jit_source_root);
117 CEED_EXTERN int CeedAddRustSourceRoot(Ceed ceed, const char *rust_source_root);
118 CEED_EXTERN int CeedAddJitDefine(Ceed ceed, const char *jit_define);
119 CEED_EXTERN int CeedSetNumViewTabs(Ceed ceed, CeedInt num_tabs);
120 CEED_EXTERN int CeedGetNumViewTabs(Ceed ceed, CeedInt *num_tabs);
121 CEED_EXTERN int CeedView(Ceed ceed, FILE *stream);
122 CEED_EXTERN int CeedDestroy(Ceed *ceed);
123 CEED_EXTERN int CeedErrorImpl(Ceed ceed, const char *filename, int lineno, const char *func, int ecode, const char *format, ...);
124 
125 /// Raise an error on `Ceed` object
126 ///
127 /// @param ceed `Ceed` library context or `NULL`
128 /// @param ecode Error code (int)
129 /// @param ... printf-style format string followed by arguments as needed
130 ///
131 /// @ingroup Ceed
132 /// @sa CeedSetErrorHandler()
133 #define CeedError(ceed, ecode, ...) (CeedErrorImpl((ceed), __FILE__, __LINE__, __func__, (ecode), __VA_ARGS__), (ecode))
134 
135 /// Ceed error handlers
136 typedef int (*CeedErrorHandler)(Ceed, const char *, int, const char *, int, const char *, va_list *);
137 CEED_EXTERN int CeedSetErrorHandler(Ceed ceed, CeedErrorHandler handler);
138 CEED_EXTERN int CeedGetErrorMessage(Ceed ceed, const char **err_msg);
139 CEED_EXTERN int CeedResetErrorMessage(Ceed ceed, const char **err_msg);
140 CEED_EXTERN int CeedErrorReturn(Ceed ceed, const char *filename, int line_no, const char *func, int err_code, const char *format, va_list *args);
141 CEED_EXTERN int CeedErrorStore(Ceed ceed, const char *filename, int line_no, const char *func, int err_code, const char *format, va_list *args);
142 CEED_EXTERN int CeedErrorAbort(Ceed ceed, const char *filename, int line_no, const char *func, int err_code, const char *format, va_list *args);
143 CEED_EXTERN int CeedErrorExit(Ceed ceed, const char *filename, int line_no, const char *func, int err_code, const char *format, va_list *args);
144 
145 /// libCEED library version numbering
146 /// @ingroup Ceed
147 #define CEED_VERSION_MAJOR 0
148 #define CEED_VERSION_MINOR 12
149 #define CEED_VERSION_PATCH 0
150 #define CEED_VERSION_RELEASE false
151 
152 /// Compile-time check that the the current library version is at least as recent as the specified version.
153 /// This macro is typically used in
154 /// @code
155 /// #if CEED_VERSION_GE(0, 8, 0)
156 ///   code path that needs at least 0.8.0
157 /// #else
158 ///   fallback code for older versions
159 /// #endif
160 /// @endcode
161 ///
162 /// A non-release version always compares as positive infinity.
163 ///
164 /// @param major   Major version
165 /// @param minor   Minor version
166 /// @param patch   Patch (subminor) version
167 ///
168 /// @ingroup Ceed
169 /// @sa CeedGetVersion()
170 #define CEED_VERSION_GE(major, minor, patch) \
171   (!CEED_VERSION_RELEASE ||                  \
172    (CEED_VERSION_MAJOR > major ||            \
173     (CEED_VERSION_MAJOR == major && (CEED_VERSION_MINOR > minor || (CEED_VERSION_MINOR == minor && CEED_VERSION_PATCH >= patch)))))
174 
175 CEED_EXTERN int CeedGetVersion(int *major, int *minor, int *patch, bool *release);
176 CEED_EXTERN int CeedGetGitVersion(const char **git_version);
177 CEED_EXTERN int CeedGetBuildConfiguration(const char **build_config);
178 
179 CEED_EXTERN int CeedSetIsClang(Ceed ceed, bool isClang);
180 CEED_EXTERN int CeedGetIsClang(Ceed ceed, bool *isClang);
181 
182 CEED_EXTERN int CeedGetScalarType(CeedScalarType *scalar_type);
183 
184 /// String names for enum pretty printing
185 CEED_EXTERN const char *const *CeedErrorTypes;
186 CEED_EXTERN const char *const  CeedMemTypes[];
187 CEED_EXTERN const char *const  CeedCopyModes[];
188 CEED_EXTERN const char *const  CeedTransposeModes[];
189 CEED_EXTERN const char *const  CeedEvalModes[];
190 CEED_EXTERN const char *const  CeedQuadModes[];
191 CEED_EXTERN const char *const  CeedElemTopologies[];
192 CEED_EXTERN const char *const  CeedContextFieldTypes[];
193 
194 CEED_EXTERN int CeedGetPreferredMemType(Ceed ceed, CeedMemType *type);
195 
196 CEED_EXTERN int  CeedVectorCreate(Ceed ceed, CeedSize len, CeedVector *vec);
197 CEED_EXTERN int  CeedVectorReferenceCopy(CeedVector vec, CeedVector *vec_copy);
198 CEED_EXTERN int  CeedVectorCopy(CeedVector vec, CeedVector vec_copy);
199 CEED_EXTERN int  CeedVectorCopyStrided(CeedVector vec, CeedSize start, CeedSize stop, CeedSize step, CeedVector vec_copy);
200 CEED_EXTERN int  CeedVectorSetArray(CeedVector vec, CeedMemType mem_type, CeedCopyMode copy_mode, CeedScalar *array);
201 CEED_EXTERN int  CeedVectorSetValue(CeedVector vec, CeedScalar value);
202 CEED_EXTERN int  CeedVectorSetValueStrided(CeedVector vec, CeedSize start, CeedSize stop, CeedSize step, CeedScalar value);
203 CEED_EXTERN int  CeedVectorSyncArray(CeedVector vec, CeedMemType mem_type);
204 CEED_EXTERN int  CeedVectorTakeArray(CeedVector vec, CeedMemType mem_type, CeedScalar **array);
205 CEED_EXTERN int  CeedVectorGetArray(CeedVector vec, CeedMemType mem_type, CeedScalar **array);
206 CEED_EXTERN int  CeedVectorGetArrayRead(CeedVector vec, CeedMemType mem_type, const CeedScalar **array);
207 CEED_EXTERN int  CeedVectorGetArrayWrite(CeedVector vec, CeedMemType mem_type, CeedScalar **array);
208 CEED_EXTERN int  CeedVectorRestoreArray(CeedVector vec, CeedScalar **array);
209 CEED_EXTERN int  CeedVectorRestoreArrayRead(CeedVector vec, const CeedScalar **array);
210 CEED_EXTERN int  CeedVectorNorm(CeedVector vec, CeedNormType type, CeedScalar *norm);
211 CEED_EXTERN int  CeedVectorScale(CeedVector x, CeedScalar alpha);
212 CEED_EXTERN int  CeedVectorAXPY(CeedVector y, CeedScalar alpha, CeedVector x);
213 CEED_EXTERN int  CeedVectorAXPBY(CeedVector y, CeedScalar alpha, CeedScalar beta, CeedVector x);
214 CEED_EXTERN int  CeedVectorPointwiseMult(CeedVector w, CeedVector x, CeedVector y);
215 CEED_EXTERN int  CeedVectorReciprocal(CeedVector vec);
216 CEED_EXTERN int  CeedVectorSetNumViewTabs(CeedVector vec, CeedInt num_tabs);
217 CEED_EXTERN int  CeedVectorGetNumViewTabs(CeedVector vec, CeedInt *num_tabs);
218 CEED_EXTERN int  CeedVectorViewRange(CeedVector vec, CeedSize start, CeedSize stop, CeedInt step, const char *fp_fmt, FILE *stream);
219 CEED_EXTERN int  CeedVectorView(CeedVector vec, const char *fp_fmt, FILE *stream);
220 CEED_EXTERN int  CeedVectorGetCeed(CeedVector vec, Ceed *ceed);
221 CEED_EXTERN Ceed CeedVectorReturnCeed(CeedVector vec);
222 CEED_EXTERN int  CeedVectorGetLength(CeedVector vec, CeedSize *length);
223 CEED_EXTERN int  CeedVectorDestroy(CeedVector *vec);
224 
225 CEED_EXTERN CeedRequest *const CEED_REQUEST_IMMEDIATE;
226 CEED_EXTERN CeedRequest *const CEED_REQUEST_ORDERED;
227 CEED_EXTERN int                CeedRequestWait(CeedRequest *req);
228 
229 /// Argument for @ref CeedOperatorSetField() to use active input or output.
230 /// @ingroup CeedVector
231 CEED_EXTERN const CeedVector CEED_VECTOR_ACTIVE;
232 
233 /// Argument for @ref CeedOperatorSetField() to use no `CeedVector`.
234 /// Only use this option with @ref CeedEvalMode @ref CEED_EVAL_WEIGHT.
235 /// @ingroup CeedVector
236 CEED_EXTERN const CeedVector CEED_VECTOR_NONE;
237 
238 /// Argument for @ref CeedOperatorSetField() that no basis operation is needed to translate between the E-vector and the Q-vector.
239 /// Only use this option with @ref CeedEvalMode @ref CEED_EVAL_NONE.
240 /// @ingroup CeedBasis
241 CEED_EXTERN const CeedBasis CEED_BASIS_NONE;
242 
243 /// Argument for @ref CeedOperatorSetField() to use no `CeedElemRestriction`.
244 /// Only use this option with @ref CeedEvalMode @ref CEED_EVAL_WEIGHT.
245 /// @ingroup CeedElemRestriction
246 CEED_EXTERN const CeedElemRestriction CEED_ELEMRESTRICTION_NONE;
247 
248 /// Argument for @ref CeedOperatorCreate() that `CeedQFunction` is not created by user.
249 /// Only used for `CeedQFunction` `dqf` and `dqfT`.
250 /// If implemented, a backend may attempt to provide the action of these `CeedQFunction`.
251 /// @ingroup CeedQFunction
252 CEED_EXTERN const CeedQFunction CEED_QFUNCTION_NONE;
253 
254 /// Argument for @ref CeedElemRestrictionCreateStrided() that L-vector is in the Ceed backend's preferred layout.
255 /// This argument should only be used with vectors created by a Ceed backend.
256 /// @ingroup CeedElemRestriction
257 CEED_EXTERN const CeedInt CEED_STRIDES_BACKEND[3];
258 
259 CEED_EXTERN int  CeedElemRestrictionCreate(Ceed ceed, CeedInt num_elem, CeedInt elem_size, CeedInt num_comp, CeedInt comp_stride, CeedSize l_size,
260                                            CeedMemType mem_type, CeedCopyMode copy_mode, const CeedInt *offsets, CeedElemRestriction *rstr);
261 CEED_EXTERN int  CeedElemRestrictionCreateOriented(Ceed ceed, CeedInt num_elem, CeedInt elem_size, CeedInt num_comp, CeedInt comp_stride,
262                                                    CeedSize l_size, CeedMemType mem_type, CeedCopyMode copy_mode, const CeedInt *offsets,
263                                                    const bool *orients, CeedElemRestriction *rstr);
264 CEED_EXTERN int  CeedElemRestrictionCreateCurlOriented(Ceed ceed, CeedInt num_elem, CeedInt elem_size, CeedInt num_comp, CeedInt comp_stride,
265                                                        CeedSize l_size, CeedMemType mem_type, CeedCopyMode copy_mode, const CeedInt *offsets,
266                                                        const CeedInt8 *curl_orients, CeedElemRestriction *rstr);
267 CEED_EXTERN int  CeedElemRestrictionCreateStrided(Ceed ceed, CeedInt num_elem, CeedInt elem_size, CeedInt num_comp, CeedSize l_size,
268                                                   const CeedInt strides[3], CeedElemRestriction *rstr);
269 CEED_EXTERN int  CeedElemRestrictionCreateAtPoints(Ceed ceed, CeedInt num_elem, CeedInt num_points, CeedInt num_comp, CeedSize l_size,
270                                                    CeedMemType mem_type, CeedCopyMode copy_mode, const CeedInt *offsets, CeedElemRestriction *rstr);
271 CEED_EXTERN int  CeedElemRestrictionCreateBlocked(Ceed ceed, CeedInt num_elem, CeedInt elem_size, CeedInt block_size, CeedInt num_comp,
272                                                   CeedInt comp_stride, CeedSize l_size, CeedMemType mem_type, CeedCopyMode copy_mode,
273                                                   const CeedInt *offsets, CeedElemRestriction *rstr);
274 CEED_EXTERN int  CeedElemRestrictionCreateBlockedOriented(Ceed ceed, CeedInt num_elem, CeedInt elem_size, CeedInt block_size, CeedInt num_comp,
275                                                           CeedInt comp_stride, CeedSize l_size, CeedMemType mem_type, CeedCopyMode copy_mode,
276                                                           const CeedInt *offsets, const bool *orients, CeedElemRestriction *rstr);
277 CEED_EXTERN int  CeedElemRestrictionCreateBlockedCurlOriented(Ceed ceed, CeedInt num_elem, CeedInt elem_size, CeedInt block_size, CeedInt num_comp,
278                                                               CeedInt comp_stride, CeedSize l_size, CeedMemType mem_type, CeedCopyMode copy_mode,
279                                                               const CeedInt *offsets, const CeedInt8 *curl_orients, CeedElemRestriction *rstr);
280 CEED_EXTERN int  CeedElemRestrictionCreateBlockedStrided(Ceed ceed, CeedInt num_elem, CeedInt elem_size, CeedInt block_size, CeedInt num_comp,
281                                                          CeedSize l_size, const CeedInt strides[3], CeedElemRestriction *rstr);
282 CEED_EXTERN int  CeedElemRestrictionCreateUnsignedCopy(CeedElemRestriction rstr, CeedElemRestriction *rstr_unsigned);
283 CEED_EXTERN int  CeedElemRestrictionCreateUnorientedCopy(CeedElemRestriction rstr, CeedElemRestriction *rstr_unoriented);
284 CEED_EXTERN int  CeedElemRestrictionReferenceCopy(CeedElemRestriction rstr, CeedElemRestriction *rstr_copy);
285 CEED_EXTERN int  CeedElemRestrictionCreateVector(CeedElemRestriction rstr, CeedVector *lvec, CeedVector *evec);
286 CEED_EXTERN int  CeedElemRestrictionApply(CeedElemRestriction rstr, CeedTransposeMode t_mode, CeedVector u, CeedVector ru, CeedRequest *request);
287 CEED_EXTERN int  CeedElemRestrictionApplyAtPointsInElement(CeedElemRestriction rstr, CeedInt elem, CeedTransposeMode t_mode, CeedVector u,
288                                                            CeedVector ru, CeedRequest *request);
289 CEED_EXTERN int  CeedElemRestrictionApplyBlock(CeedElemRestriction rstr, CeedInt block, CeedTransposeMode t_mode, CeedVector u, CeedVector ru,
290                                                CeedRequest *request);
291 CEED_EXTERN int  CeedElemRestrictionGetCeed(CeedElemRestriction rstr, Ceed *ceed);
292 CEED_EXTERN Ceed CeedElemRestrictionReturnCeed(CeedElemRestriction rstr);
293 CEED_EXTERN int  CeedElemRestrictionGetCompStride(CeedElemRestriction rstr, CeedInt *comp_stride);
294 CEED_EXTERN int  CeedElemRestrictionGetNumElements(CeedElemRestriction rstr, CeedInt *num_elem);
295 CEED_EXTERN int  CeedElemRestrictionGetElementSize(CeedElemRestriction rstr, CeedInt *elem_size);
296 CEED_EXTERN int  CeedElemRestrictionGetNumPoints(CeedElemRestriction rstr, CeedInt *num_points);
297 CEED_EXTERN int  CeedElemRestrictionGetNumPointsInElement(CeedElemRestriction rstr, CeedInt elem, CeedInt *num_points);
298 CEED_EXTERN int  CeedElemRestrictionGetMaxPointsInElement(CeedElemRestriction rstr, CeedInt *max_points);
299 CEED_EXTERN int  CeedElemRestrictionGetMinPointsInElement(CeedElemRestriction rstr, CeedInt *min_points);
300 CEED_EXTERN int  CeedElemRestrictionGetMinMaxPointsInElement(CeedElemRestriction rstr, CeedInt *min_points, CeedInt *max_points);
301 CEED_EXTERN int  CeedElemRestrictionGetLVectorSize(CeedElemRestriction rstr, CeedSize *l_size);
302 CEED_EXTERN int  CeedElemRestrictionGetEVectorSize(CeedElemRestriction rstr, CeedSize *e_size);
303 CEED_EXTERN int  CeedElemRestrictionGetNumComponents(CeedElemRestriction rstr, CeedInt *num_comp);
304 CEED_EXTERN int  CeedElemRestrictionGetNumBlocks(CeedElemRestriction rstr, CeedInt *num_block);
305 CEED_EXTERN int  CeedElemRestrictionGetBlockSize(CeedElemRestriction rstr, CeedInt *block_size);
306 CEED_EXTERN int  CeedElemRestrictionGetMultiplicity(CeedElemRestriction rstr, CeedVector mult);
307 CEED_EXTERN int  CeedElemRestrictionSetNumViewTabs(CeedElemRestriction rstr, CeedInt num_tabs);
308 CEED_EXTERN int  CeedElemRestrictionGetNumViewTabs(CeedElemRestriction rstr, CeedInt *num_tabs);
309 CEED_EXTERN int  CeedElemRestrictionView(CeedElemRestriction rstr, FILE *stream);
310 CEED_EXTERN int  CeedElemRestrictionDestroy(CeedElemRestriction *rstr);
311 
312 // The formalism here is that we have the structure
313 //  \int_\Omega v^T f_0(u, \nabla u, qdata) + (\nabla v)^T f_1(u, \nabla u, qdata)
314 // where gradients are with respect to the reference element.
315 
316 CEED_EXTERN int CeedBasisCreateTensorH1Lagrange(Ceed ceed, CeedInt dim, CeedInt num_comp, CeedInt P, CeedInt Q, CeedQuadMode quad_mode,
317                                                 CeedBasis *basis);
318 CEED_EXTERN int CeedBasisCreateTensorH1(Ceed ceed, CeedInt dim, CeedInt num_comp, CeedInt P_1d, CeedInt Q_1d, const CeedScalar *interp_1d,
319                                         const CeedScalar *grad_1d, const CeedScalar *q_ref_1d, const CeedScalar *q_weight_1d, CeedBasis *basis);
320 CEED_EXTERN int CeedBasisCreateH1(Ceed ceed, CeedElemTopology topo, CeedInt num_comp, CeedInt num_nodes, CeedInt nqpts, const CeedScalar *interp,
321                                   const CeedScalar *grad, const CeedScalar *q_ref, const CeedScalar *q_weights, CeedBasis *basis);
322 CEED_EXTERN int CeedBasisCreateHdiv(Ceed ceed, CeedElemTopology topo, CeedInt num_comp, CeedInt num_nodes, CeedInt nqpts, const CeedScalar *interp,
323                                     const CeedScalar *div, const CeedScalar *q_ref, const CeedScalar *q_weights, CeedBasis *basis);
324 CEED_EXTERN int CeedBasisCreateHcurl(Ceed ceed, CeedElemTopology topo, CeedInt num_comp, CeedInt num_nodes, CeedInt nqpts, const CeedScalar *interp,
325                                      const CeedScalar *curl, const CeedScalar *q_ref, const CeedScalar *q_weights, CeedBasis *basis);
326 CEED_EXTERN int CeedBasisCreateProjection(CeedBasis basis_from, CeedBasis basis_to, CeedBasis *basis_project);
327 CEED_EXTERN int CeedBasisReferenceCopy(CeedBasis basis, CeedBasis *basis_copy);
328 CEED_EXTERN int CeedBasisSetNumViewTabs(CeedBasis basis, CeedInt num_tabs);
329 CEED_EXTERN int CeedBasisGetNumViewTabs(CeedBasis basis, CeedInt *num_tabs);
330 CEED_EXTERN int CeedBasisView(CeedBasis basis, FILE *stream);
331 CEED_EXTERN int CeedBasisApply(CeedBasis basis, CeedInt num_elem, CeedTransposeMode t_mode, CeedEvalMode eval_mode, CeedVector u, CeedVector v);
332 CEED_EXTERN int CeedBasisApplyAdd(CeedBasis basis, CeedInt num_elem, CeedTransposeMode t_mode, CeedEvalMode eval_mode, CeedVector u, CeedVector v);
333 CEED_EXTERN int CeedBasisApplyAtPoints(CeedBasis basis, CeedInt num_elem, const CeedInt *num_points, CeedTransposeMode t_mode, CeedEvalMode eval_mode,
334                                        CeedVector x_ref, CeedVector u, CeedVector v);
335 CEED_EXTERN int CeedBasisApplyAddAtPoints(CeedBasis basis, CeedInt num_elem, const CeedInt *num_points, CeedTransposeMode t_mode,
336                                           CeedEvalMode eval_mode, CeedVector x_ref, CeedVector u, CeedVector v);
337 CEED_EXTERN int CeedBasisGetCeed(CeedBasis basis, Ceed *ceed);
338 CEED_EXTERN Ceed CeedBasisReturnCeed(CeedBasis basis);
339 CEED_EXTERN int  CeedBasisGetDimension(CeedBasis basis, CeedInt *dim);
340 CEED_EXTERN int  CeedBasisGetTopology(CeedBasis basis, CeedElemTopology *topo);
341 CEED_EXTERN int  CeedBasisGetNumComponents(CeedBasis basis, CeedInt *num_comp);
342 CEED_EXTERN int  CeedBasisGetNumNodes(CeedBasis basis, CeedInt *P);
343 CEED_EXTERN int  CeedBasisGetNumNodes1D(CeedBasis basis, CeedInt *P_1d);
344 CEED_EXTERN int  CeedBasisGetNumQuadraturePoints(CeedBasis basis, CeedInt *Q);
345 CEED_EXTERN int  CeedBasisGetNumQuadraturePoints1D(CeedBasis basis, CeedInt *Q_1d);
346 CEED_EXTERN int  CeedBasisGetQRef(CeedBasis basis, const CeedScalar **q_ref);
347 CEED_EXTERN int  CeedBasisGetQWeights(CeedBasis basis, const CeedScalar **q_weights);
348 CEED_EXTERN int  CeedBasisGetInterp(CeedBasis basis, const CeedScalar **interp);
349 CEED_EXTERN int  CeedBasisGetInterp1D(CeedBasis basis, const CeedScalar **interp_1d);
350 CEED_EXTERN int  CeedBasisGetGrad(CeedBasis basis, const CeedScalar **grad);
351 CEED_EXTERN int  CeedBasisGetGrad1D(CeedBasis basis, const CeedScalar **grad_1d);
352 CEED_EXTERN int  CeedBasisGetDiv(CeedBasis basis, const CeedScalar **div);
353 CEED_EXTERN int  CeedBasisGetCurl(CeedBasis basis, const CeedScalar **curl);
354 CEED_EXTERN int  CeedBasisDestroy(CeedBasis *basis);
355 
356 CEED_EXTERN int CeedGaussQuadrature(CeedInt Q, CeedScalar *q_ref_1d, CeedScalar *q_weight_1d);
357 CEED_EXTERN int CeedLobattoQuadrature(CeedInt Q, CeedScalar *q_ref_1d, CeedScalar *q_weight_1d);
358 
359 /** Handle for the user provided `CeedQFunction` callback function
360 
361  @param[in,out] ctx User-defined context set using @ref CeedQFunctionSetContext() or `NULL`
362  @param[in] Q       Number of quadrature points at which to evaluate
363  @param[in] in      Array of pointers to each input argument in the order provided by the user in @ref CeedQFunctionAddInput().
364                       Each array has shape `[dim, num_comp, Q]` where `dim` is the geometric dimension for @ref CEED_EVAL_GRAD (`dim=1` for @ref CEED_EVAL_INTERP) and `num_comp` is the number of field components (`num_comp=1` for scalar fields).
365                       This results in indexing the `i`th input at quadrature point `j` as `in[i][(d*num_comp + c)*Q + j]`.
366  @param[out]   out  Array of pointers to each output array in the order provided using @ref CeedQFunctionAddOutput().
367                       The shapes are as above for `in`.
368 
369  @return An error code: 0 - success, otherwise - failure
370 
371  @ingroup CeedQFunction
372 **/
373 typedef int (*CeedQFunctionUser)(void *ctx, const CeedInt Q, const CeedScalar *const *in, CeedScalar *const *out);
374 
375 CEED_EXTERN int  CeedQFunctionCreateInterior(Ceed ceed, CeedInt vec_length, CeedQFunctionUser f, const char *source, CeedQFunction *qf);
376 CEED_EXTERN int  CeedQFunctionCreateInteriorByName(Ceed ceed, const char *name, CeedQFunction *qf);
377 CEED_EXTERN int  CeedQFunctionCreateIdentity(Ceed ceed, CeedInt size, CeedEvalMode in_mode, CeedEvalMode out_mode, CeedQFunction *qf);
378 CEED_EXTERN int  CeedQFunctionReferenceCopy(CeedQFunction qf, CeedQFunction *qf_copy);
379 CEED_EXTERN int  CeedQFunctionAddInput(CeedQFunction qf, const char *field_name, CeedInt size, CeedEvalMode eval_mode);
380 CEED_EXTERN int  CeedQFunctionAddOutput(CeedQFunction qf, const char *field_name, CeedInt size, CeedEvalMode eval_mode);
381 CEED_EXTERN int  CeedQFunctionGetFields(CeedQFunction qf, CeedInt *num_input_fields, CeedQFunctionField **input_fields, CeedInt *num_output_fields,
382                                         CeedQFunctionField **output_fields);
383 CEED_EXTERN int  CeedQFunctionSetContext(CeedQFunction qf, CeedQFunctionContext ctx);
384 CEED_EXTERN int  CeedQFunctionSetContextWritable(CeedQFunction qf, bool is_writable);
385 CEED_EXTERN int  CeedQFunctionSetUserFlopsEstimate(CeedQFunction qf, CeedSize flops);
386 CEED_EXTERN int  CeedQFunctionSetNumViewTabs(CeedQFunction qf, CeedInt num_tabs);
387 CEED_EXTERN int  CeedQFunctionGetNumViewTabs(CeedQFunction qf, CeedInt *num_tabs);
388 CEED_EXTERN int  CeedQFunctionView(CeedQFunction qf, FILE *stream);
389 CEED_EXTERN int  CeedQFunctionGetCeed(CeedQFunction qf, Ceed *ceed);
390 CEED_EXTERN Ceed CeedQFunctionReturnCeed(CeedQFunction qf);
391 CEED_EXTERN int  CeedQFunctionApply(CeedQFunction qf, CeedInt Q, CeedVector *u, CeedVector *v);
392 CEED_EXTERN int  CeedQFunctionDestroy(CeedQFunction *qf);
393 CEED_EXTERN int  CeedQFunctionFieldGetName(CeedQFunctionField qf_field, const char **field_name);
394 CEED_EXTERN int  CeedQFunctionFieldGetSize(CeedQFunctionField qf_field, CeedInt *size);
395 CEED_EXTERN int  CeedQFunctionFieldGetEvalMode(CeedQFunctionField qf_field, CeedEvalMode *eval_mode);
396 CEED_EXTERN int  CeedQFunctionFieldGetData(CeedQFunctionField qf_field, const char **field_name, CeedInt *size, CeedEvalMode *eval_mode);
397 
398 /** Handle for the user provided @ref CeedQFunctionContextDestroy() callback function
399 
400  @param[in,out] data  User `CeedQFunctionContext` data
401 
402  @return An error code: 0 - success, otherwise - failure
403 
404  @ingroup CeedQFunction
405 **/
406 typedef int (*CeedQFunctionContextDataDestroyUser)(void *data);
407 
408 CEED_EXTERN int CeedQFunctionContextCreate(Ceed ceed, CeedQFunctionContext *ctx);
409 CEED_EXTERN int CeedQFunctionContextReferenceCopy(CeedQFunctionContext ctx, CeedQFunctionContext *ctx_copy);
410 CEED_EXTERN int CeedQFunctionContextSetData(CeedQFunctionContext ctx, CeedMemType mem_type, CeedCopyMode copy_mode, size_t size, void *data);
411 CEED_EXTERN int CeedQFunctionContextTakeData(CeedQFunctionContext ctx, CeedMemType mem_type, void *data);
412 CEED_EXTERN int CeedQFunctionContextGetData(CeedQFunctionContext ctx, CeedMemType mem_type, void *data);
413 CEED_EXTERN int CeedQFunctionContextGetDataRead(CeedQFunctionContext ctx, CeedMemType mem_type, void *data);
414 CEED_EXTERN int CeedQFunctionContextRestoreData(CeedQFunctionContext ctx, void *data);
415 CEED_EXTERN int CeedQFunctionContextRestoreDataRead(CeedQFunctionContext ctx, void *data);
416 CEED_EXTERN int CeedQFunctionContextRegisterDouble(CeedQFunctionContext ctx, const char *field_name, size_t field_offset, size_t num_values,
417                                                    const char *field_description);
418 CEED_EXTERN int CeedQFunctionContextRegisterInt32(CeedQFunctionContext ctx, const char *field_name, size_t field_offset, size_t num_values,
419                                                   const char *field_description);
420 CEED_EXTERN int CeedQFunctionContextRegisterBoolean(CeedQFunctionContext ctx, const char *field_name, size_t field_offset, size_t num_values,
421                                                     const char *field_description);
422 CEED_EXTERN int CeedQFunctionContextGetAllFieldLabels(CeedQFunctionContext ctx, const CeedContextFieldLabel **field_labels, CeedInt *num_fields);
423 CEED_EXTERN int CeedContextFieldLabelGetDescription(CeedContextFieldLabel label, const char **field_name, size_t *field_offset, size_t *num_values,
424                                                     const char **field_description, CeedContextFieldType *field_type);
425 CEED_EXTERN int CeedQFunctionContextGetContextSize(CeedQFunctionContext ctx, size_t *ctx_size);
426 CEED_EXTERN int CeedQFunctionContextSetNumViewTabs(CeedQFunctionContext ctx, CeedInt num_tabs);
427 CEED_EXTERN int CeedQFunctionContextGetNumViewTabs(CeedQFunctionContext ctx, CeedInt *num_tabs);
428 CEED_EXTERN int CeedQFunctionContextView(CeedQFunctionContext ctx, FILE *stream);
429 CEED_EXTERN int CeedQFunctionContextSetDataDestroy(CeedQFunctionContext ctx, CeedMemType f_mem_type, CeedQFunctionContextDataDestroyUser f);
430 CEED_EXTERN int CeedQFunctionContextDestroy(CeedQFunctionContext *ctx);
431 
432 CEED_EXTERN int CeedOperatorCreate(Ceed ceed, CeedQFunction qf, CeedQFunction dqf, CeedQFunction dqfT, CeedOperator *op);
433 CEED_EXTERN int CeedOperatorCreateAtPoints(Ceed ceed, CeedQFunction qf, CeedQFunction dqf, CeedQFunction dqfT, CeedOperator *op);
434 CEED_EXTERN int CeedOperatorCreateComposite(Ceed ceed, CeedOperator *op);
435 CEED_EXTERN int CeedOperatorReferenceCopy(CeedOperator op, CeedOperator *op_copy);
436 CEED_EXTERN int CeedOperatorSetField(CeedOperator op, const char *field_name, CeedElemRestriction rstr, CeedBasis basis, CeedVector vec);
437 CEED_EXTERN int CeedOperatorGetFields(CeedOperator op, CeedInt *num_input_fields, CeedOperatorField **input_fields, CeedInt *num_output_fields,
438                                       CeedOperatorField **output_fields);
439 
440 CEED_EXTERN int  CeedOperatorAtPointsSetPoints(CeedOperator op, CeedElemRestriction rstr_points, CeedVector point_coords);
441 CEED_EXTERN int  CeedOperatorAtPointsGetPoints(CeedOperator op, CeedElemRestriction *rstr_points, CeedVector *point_coords);
442 CEED_EXTERN int  CeedOperatorIsAtPoints(CeedOperator op, bool *is_at_points);
443 CEED_EXTERN int  CeedOperatorCompositeAddSub(CeedOperator composite_op, CeedOperator sub_op);
444 CEED_EXTERN int  CeedOperatorCompositeGetNumSub(CeedOperator op, CeedInt *num_suboperators);
445 CEED_EXTERN int  CeedOperatorCompositeGetSubList(CeedOperator op, CeedOperator **sub_operators);
446 CEED_EXTERN int  CeedOperatorCompositeGetSubByName(CeedOperator op, const char *op_name, CeedOperator *sub_op);
447 CEED_EXTERN int  CeedOperatorCheckReady(CeedOperator op);
448 CEED_EXTERN int  CeedOperatorGetActiveVectorLengths(CeedOperator op, CeedSize *input_size, CeedSize *output_size);
449 CEED_EXTERN int  CeedOperatorSetQFunctionAssemblyReuse(CeedOperator op, bool reuse_assembly_data);
450 CEED_EXTERN int  CeedOperatorSetQFunctionAssemblyDataUpdateNeeded(CeedOperator op, bool needs_data_update);
451 CEED_EXTERN int  CeedOperatorLinearAssembleQFunction(CeedOperator op, CeedVector *assembled, CeedElemRestriction *rstr, CeedRequest *request);
452 CEED_EXTERN int  CeedOperatorLinearAssembleQFunctionBuildOrUpdate(CeedOperator op, CeedVector *assembled, CeedElemRestriction *rstr,
453                                                                   CeedRequest *request);
454 CEED_EXTERN int  CeedOperatorLinearAssembleDiagonal(CeedOperator op, CeedVector assembled, CeedRequest *request);
455 CEED_EXTERN int  CeedOperatorLinearAssembleAddDiagonal(CeedOperator op, CeedVector assembled, CeedRequest *request);
456 CEED_EXTERN int  CeedOperatorLinearAssemblePointBlockDiagonal(CeedOperator op, CeedVector assembled, CeedRequest *request);
457 CEED_EXTERN int  CeedOperatorLinearAssembleAddPointBlockDiagonal(CeedOperator op, CeedVector assembled, CeedRequest *request);
458 CEED_EXTERN int  CeedOperatorLinearAssemblePointBlockDiagonalSymbolic(CeedOperator op, CeedSize *num_entries, CeedInt **rows, CeedInt **cols);
459 CEED_EXTERN int  CeedOperatorLinearAssembleSymbolic(CeedOperator op, CeedSize *num_entries, CeedInt **rows, CeedInt **cols);
460 CEED_EXTERN int  CeedOperatorLinearAssembleGetNumEntries(CeedOperator op, CeedSize *num_entries);
461 CEED_EXTERN int  CeedOperatorLinearAssemble(CeedOperator op, CeedVector values);
462 CEED_EXTERN int  CeedOperatorCompositeGetMultiplicity(CeedOperator op, CeedInt num_skip_indices, CeedInt *skip_indices, CeedVector mult);
463 CEED_EXTERN int  CeedOperatorMultigridLevelCreate(CeedOperator op_fine, CeedVector p_mult_fine, CeedElemRestriction rstr_coarse,
464                                                   CeedBasis basis_coarse, CeedOperator *op_coarse, CeedOperator *op_prolong,
465                                                   CeedOperator *op_restrict);
466 CEED_EXTERN int  CeedOperatorMultigridLevelCreateTensorH1(CeedOperator op_fine, CeedVector p_mult_fine, CeedElemRestriction rstr_coarse,
467                                                           CeedBasis basis_coarse, const CeedScalar *interp_c_to_f, CeedOperator *op_coarse,
468                                                           CeedOperator *op_prolong, CeedOperator *op_restrict);
469 CEED_EXTERN int  CeedOperatorMultigridLevelCreateH1(CeedOperator op_fine, CeedVector p_mult_fine, CeedElemRestriction rstr_coarse,
470                                                     CeedBasis basis_coarse, const CeedScalar *interp_c_to_f, CeedOperator *op_coarse,
471                                                     CeedOperator *op_prolong, CeedOperator *op_restrict);
472 CEED_EXTERN int  CeedOperatorCreateFDMElementInverse(CeedOperator op, CeedOperator *fdm_inv, CeedRequest *request);
473 CEED_EXTERN int  CeedOperatorSetName(CeedOperator op, const char *name);
474 CEED_EXTERN int  CeedOperatorGetName(CeedOperator op, const char **name);
475 CEED_EXTERN int  CeedOperatorSetNumViewTabs(CeedOperator op, CeedInt num_tabs);
476 CEED_EXTERN int  CeedOperatorGetNumViewTabs(CeedOperator op, CeedInt *num_tabs);
477 CEED_EXTERN int  CeedOperatorView(CeedOperator op, FILE *stream);
478 CEED_EXTERN int  CeedOperatorViewTerse(CeedOperator op, FILE *stream);
479 CEED_EXTERN int  CeedOperatorGetCeed(CeedOperator op, Ceed *ceed);
480 CEED_EXTERN Ceed CeedOperatorReturnCeed(CeedOperator op);
481 CEED_EXTERN int  CeedOperatorGetNumElements(CeedOperator op, CeedInt *num_elem);
482 CEED_EXTERN int  CeedOperatorGetNumQuadraturePoints(CeedOperator op, CeedInt *num_qpts);
483 CEED_EXTERN int  CeedOperatorGetFlopsEstimate(CeedOperator op, CeedSize *flops);
484 CEED_EXTERN int  CeedOperatorGetContext(CeedOperator op, CeedQFunctionContext *ctx);
485 CEED_EXTERN int  CeedOperatorGetContextFieldLabel(CeedOperator op, const char *field_name, CeedContextFieldLabel *field_label);
486 CEED_EXTERN int  CeedOperatorSetContextDouble(CeedOperator op, CeedContextFieldLabel field_label, double *values);
487 CEED_EXTERN int  CeedOperatorGetContextDoubleRead(CeedOperator op, CeedContextFieldLabel field_label, size_t *num_values, const double **values);
488 CEED_EXTERN int  CeedOperatorRestoreContextDoubleRead(CeedOperator op, CeedContextFieldLabel field_label, const double **values);
489 CEED_EXTERN int  CeedOperatorSetContextInt32(CeedOperator op, CeedContextFieldLabel field_label, int32_t *values);
490 CEED_EXTERN int  CeedOperatorGetContextInt32Read(CeedOperator op, CeedContextFieldLabel field_label, size_t *num_values, const int32_t **values);
491 CEED_EXTERN int  CeedOperatorRestoreContextInt32Read(CeedOperator op, CeedContextFieldLabel field_label, const int32_t **values);
492 CEED_EXTERN int  CeedOperatorSetContextBoolean(CeedOperator op, CeedContextFieldLabel field_label, bool *values);
493 CEED_EXTERN int  CeedOperatorGetContextBooleanRead(CeedOperator op, CeedContextFieldLabel field_label, size_t *num_values, const bool **values);
494 CEED_EXTERN int  CeedOperatorRestoreContextBooleanRead(CeedOperator op, CeedContextFieldLabel field_label, const bool **values);
495 CEED_EXTERN int  CeedOperatorApply(CeedOperator op, CeedVector in, CeedVector out, CeedRequest *request);
496 CEED_EXTERN int  CeedOperatorApplyAdd(CeedOperator op, CeedVector in, CeedVector out, CeedRequest *request);
497 CEED_EXTERN int  CeedOperatorApplyAddActive(CeedOperator op, CeedVector in, CeedVector out, CeedRequest *request);
498 CEED_EXTERN int  CeedOperatorAssemblyDataStrip(CeedOperator op);
499 CEED_EXTERN int  CeedOperatorDestroy(CeedOperator *op);
500 
501 // Compatibility with previous composite CeedOperator naming
502 #include "deprecated.h"
503 
504 CEED_EXTERN int CeedOperatorGetFieldByName(CeedOperator op, const char *field_name, CeedOperatorField *op_field);
505 CEED_EXTERN int CeedOperatorFieldGetName(CeedOperatorField op_field, const char **field_name);
506 CEED_EXTERN int CeedOperatorFieldGetElemRestriction(CeedOperatorField op_field, CeedElemRestriction *rstr);
507 CEED_EXTERN int CeedOperatorFieldGetBasis(CeedOperatorField op_field, CeedBasis *basis);
508 CEED_EXTERN int CeedOperatorFieldGetVector(CeedOperatorField op_field, CeedVector *vec);
509 CEED_EXTERN int CeedOperatorFieldGetData(CeedOperatorField op_field, const char **field_name, CeedElemRestriction *rstr, CeedBasis *basis,
510                                          CeedVector *vec);
511 
512 /**
513   @brief Return integer power
514 
515   @param[in] base  The base to exponentiate
516   @param[in] power The power to raise the base to
517 
518   @return base^power
519 
520   @ref Utility
521 **/
522 static inline CeedInt CeedIntPow(CeedInt base, CeedInt power) {
523   CeedInt result = 1;
524   while (power) {
525     if (power & 1) result *= base;
526     power >>= 1;
527     base *= base;
528   }
529   return result;
530 }
531 
532 /**
533   @brief Return minimum of two integers
534 
535   @param[in] a The first integer to compare
536   @param[in] b The second integer to compare
537 
538   @return The minimum of the two integers
539 
540   @ref Utility
541 **/
542 static inline CeedInt CeedIntMin(CeedInt a, CeedInt b) { return a < b ? a : b; }
543 
544 /**
545   @brief Return maximum of two integers
546 
547   @param[in] a The first integer to compare
548   @param[in] b The second integer to compare
549 
550   @return The maximum of the two integers
551 
552   @ref Utility
553 **/
554 static inline CeedInt CeedIntMax(CeedInt a, CeedInt b) { return a > b ? a : b; }
555 
556 // Used to ensure initialization before CeedInit()
557 CEED_EXTERN int CeedRegisterAll(void);
558 // Used to ensure initialization before CeedQFunctionCreate*()
559 CEED_EXTERN int CeedQFunctionRegisterAll(void);
560