Actual source code: petsctao.h

  1: #pragma once

  3: #include <petscsnes.h>
  4: #include <petsctaotypes.h>
  5: #include <petsctaoterm.h>

  7: /* SUBMANSEC = Tao */

  9: PETSC_EXTERN PetscErrorCode MatDSFischer(Mat, Vec, Vec, Vec, Vec, PetscReal, Vec, Vec, Vec, Vec, Vec);
 10: PETSC_EXTERN PetscErrorCode TaoSoftThreshold(Vec, PetscReal, PetscReal, Vec);

 12: /*E
 13:   TaoSubsetType - Type representing the way the `Tao` solvers handle active sets

 15:   Values:
 16: + `TAO_SUBSET_SUBVEC`     - Tao uses `MatCreateSubMatrix()` and `VecGetSubVector()`
 17: . `TAO_SUBSET_MASK`       - Matrices are zeroed out corresponding to active set entries
 18: - `TAO_SUBSET_MATRIXFREE` - Same as `TAO_SUBSET_MASK` but it can be applied to matrix-free operators

 20:   Options database Key:
 21: . -different_hessian - `Tao` will use a copy of the Hessian operator for masking.  By default `Tao` will directly alter the Hessian operator.

 23:   Level: intermediate

 25: .seealso: [](ch_tao), `TaoVecGetSubVec()`, `TaoMatGetSubMat()`, `Tao`, `TaoCreate()`, `TaoDestroy()`, `TaoSetType()`, `TaoType`
 26: E*/
 27: typedef enum {
 28:   TAO_SUBSET_SUBVEC,
 29:   TAO_SUBSET_MASK,
 30:   TAO_SUBSET_MATRIXFREE
 31: } TaoSubsetType;
 32: PETSC_EXTERN const char *const TaoSubsetTypes[];

 34: /*E
 35:   TaoADMMUpdateType - Determine the spectral penalty update routine for the Lagrange augmented term for `TAOADMM`.

 37:   Level: advanced

 39: .seealso: [](ch_tao), `Tao`, `TAOADMM`, `TaoADMMSetUpdateType()`
 40: E*/
 41: typedef enum {
 42:   TAO_ADMM_UPDATE_BASIC,
 43:   TAO_ADMM_UPDATE_ADAPTIVE,
 44:   TAO_ADMM_UPDATE_ADAPTIVE_RELAXED
 45: } TaoADMMUpdateType;
 46: PETSC_EXTERN const char *const TaoADMMUpdateTypes[];

 48: /*MC
 49:   TAO_ADMM_UPDATE_BASIC - Use same spectral penalty set at the beginning. This never performs an update to the penalty

 51:   Level: advanced

 53:   Note:
 54:   Most basic implementation of `TAOADMM`. Generally slower than adaptive or adaptive relaxed version.

 56: .seealso: [](ch_tao), `Tao`, `TAOADMM`, `TaoADMMSetUpdateType()`, `TAO_ADMM_UPDATE_ADAPTIVE`, `TAO_ADMM_UPDATE_ADAPTIVE_RELAXED`
 57: M*/

 59: /*MC
 60:   TAO_ADMM_UPDATE_ADAPTIVE - Adaptively update the spectral penalty

 62:   Level: advanced

 64:   Note:
 65:   Adaptively updates spectral penalty of `TAOADMM` by using both steepest descent and minimum gradient.

 67: .seealso: [](ch_tao), `Tao`, `TAOADMM`, `TaoADMMSetUpdateType()`, `TAO_ADMM_UPDATE_BASIC`, `TAO_ADMM_UPDATE_ADAPTIVE_RELAXED`
 68: M*/

 70: /*MC
 71:   ADMM_UPDATE_ADAPTIVE_RELAXED - Adaptively update spectral penalty, and relaxes parameter update

 73:   Level: advanced

 75:   Note:
 76:   With adaptive spectral penalty update, it also relaxes the `x` vector update by a factor.

 78: .seealso: [](ch_tao), `Tao`, `TaoADMMSetUpdateType()`, `TAO_ADMM_UPDATE_BASIC`, `TAO_ADMM_UPDATE_ADAPTIVE`
 79: M*/

 81: /*E
 82:   TaoADMMRegularizerType - Determine regularizer routine - either user provided or soft threshold for `TAOADMM`

 84:   Level: advanced

 86: .seealso: [](ch_tao), `Tao`, `TAOADMM`, `TaoADMMSetRegularizerType()`
 87: E*/
 88: typedef enum {
 89:   TAO_ADMM_REGULARIZER_USER,
 90:   TAO_ADMM_REGULARIZER_SOFT_THRESH
 91: } TaoADMMRegularizerType;
 92: PETSC_EXTERN const char *const TaoADMMRegularizerTypes[];

 94: /*MC
 95:   TAO_ADMM_REGULARIZER_USER - User provided routines for regularizer part of `TAOADMM`

 97:   Level: advanced

 99:   Note:
100:   User needs to provided appropriate routines and type for regularizer solver

102: .seealso: [](ch_tao), `Tao`, `TAOADMM`, `TaoADMMSetRegularizerType()`, `TAO_ADMM_REGULARIZER_SOFT_THRESH`
103: M*/

105: /*MC
106:   TAO_ADMM_REGULARIZER_SOFT_THRESH - Soft threshold to solve regularizer part of `TAOADMM`

108:   Level: advanced

110:   Note:
111:   Utilizes built-in SoftThreshold routines

113: .seealso: [](ch_tao), `Tao`, `TAOADMM`, `TaoSoftThreshold()`, `TaoADMMSetRegularizerObjectiveAndGradientRoutine()`,
114:           `TaoADMMSetRegularizerHessianRoutine()`, `TaoADMMSetRegularizerType()`, `TAO_ADMM_REGULARIZER_USER`
115: M*/

117: /*E
118:    TaoALMMType - Determine the augmented Lagrangian formulation used in the `TAOALMM` subproblem.

120:    Values:
121: +  `TAO_ALMM_CLASSIC` - classic augmented Lagrangian definition including slack variables for inequality constraints
122: -  `TAO_ALMM_PHR`     - Powell-Hestenes-Rockafellar formulation without slack variables, uses pointwise `min()` for inequalities

124:   Level: advanced

126: .seealso: [](ch_tao), `Tao`, `TAOALMM`, `TaoALMMSetType()`, `TaoALMMGetType()`
127: E*/
128: typedef enum {
129:   TAO_ALMM_CLASSIC,
130:   TAO_ALMM_PHR
131: } TaoALMMType;
132: PETSC_EXTERN const char *const TaoALMMTypes[];

134: /*E
135:   TaoBNCGType - Determine the conjugate gradient update formula used in the `TAOBNCG` algorithm.

137:   Values:
138: +  `TAO_BNCG_GD`         - basic gradient descent, no CG update
139: .  `TAO_BNCG_PCGD`       - preconditioned/scaled gradient descent
140: .  `TAO_BNCG_HS`         - Hestenes-Stiefel
141: .  `TAO_BNCG_FR`         - Fletcher-Reeves
142: .  `TAO_BNCG_PRP`        - Polak-Ribiere-Polyak (PRP)
143: .  `TAO_BNCG_PRP_PLUS`   - Polak-Ribiere-Polyak "plus" (PRP+)
144: .  `TAO_BNCG_DY`         - Dai-Yuan
145: .  `TAO_BNCG_HZ`         - Hager-Zhang (CG_DESCENT 5.3)
146: .  `TAO_BNCG_DK`         - Dai-Kou (2013)
147: .  `TAO_BNCG_KD`         - Kou-Dai (2015)
148: .  `TAO_BNCG_SSML_BFGS`  - Self-Scaling Memoryless BFGS (Perry-Shanno)
149: .  `TAO_BNCG_SSML_DFP`   - Self-Scaling Memoryless DFP
150: -  `TAO_BNCG_SSML_BRDN`  - Self-Scaling Memoryless (Symmetric) Broyden

152:   Level: advanced

154: .seealso: `Tao`, `TAOBNCG`, `TaoBNCGSetType()`, `TaoBNCGGetType()`
155: E*/

157: typedef enum {
158:   TAO_BNCG_GD,
159:   TAO_BNCG_PCGD,
160:   TAO_BNCG_HS,
161:   TAO_BNCG_FR,
162:   TAO_BNCG_PRP,
163:   TAO_BNCG_PRP_PLUS,
164:   TAO_BNCG_DY,
165:   TAO_BNCG_HZ,
166:   TAO_BNCG_DK,
167:   TAO_BNCG_KD,
168:   TAO_BNCG_SSML_BFGS,
169:   TAO_BNCG_SSML_DFP,
170:   TAO_BNCG_SSML_BRDN
171: } TaoBNCGType;
172: PETSC_EXTERN const char *const TaoBNCGTypes[];

174: /*J
175:   TaoType - String with the name of a `Tao` method

177:   Values:
178: + `TAONLS`      - nls Newton's method with line search for unconstrained minimization
179: . `TAONTR`      - ntr Newton's method with trust region for unconstrained minimization
180: . `TAONTL`      - ntl Newton's method with trust region, line search for unconstrained minimization
181: . `TAOLMVM`     - lmvm Limited memory variable metric method for unconstrained minimization
182: . `TAOCG`       - cg Nonlinear conjugate gradient method for unconstrained minimization
183: . `TAONM`       - nm Nelder-Mead algorithm for derivate-free unconstrained minimization
184: . `TAOTRON`     - tron Newton Trust Region method for bound constrained minimization
185: . `TAOGPCG`     - gpcg Newton Trust Region method for quadratic bound constrained minimization
186: . `TAOBLMVM`    - blmvm Limited memory variable metric method for bound constrained minimization
187: . `TAOLCL`      - lcl Linearly constrained Lagrangian method for pde-constrained minimization
188: - `TAOPOUNDERS` - Pounders Model-based algorithm for nonlinear least squares

190:   Level: beginner

192: .seealso: [](doc_taosolve), [](ch_tao), `Tao`, `TaoCreate()`, `TaoSetType()`
193: J*/
194: typedef const char *TaoType;
195: #define TAOLMVM     "lmvm"
196: #define TAONLS      "nls"
197: #define TAONTR      "ntr"
198: #define TAONTL      "ntl"
199: #define TAOCG       "cg"
200: #define TAOTRON     "tron"
201: #define TAOOWLQN    "owlqn"
202: #define TAOBMRM     "bmrm"
203: #define TAOBLMVM    "blmvm"
204: #define TAOBQNLS    "bqnls"
205: #define TAOBNCG     "bncg"
206: #define TAOBNLS     "bnls"
207: #define TAOBNTR     "bntr"
208: #define TAOBNTL     "bntl"
209: #define TAOBNK      "bnk"
210: #define TAOBQNKLS   "bqnkls"
211: #define TAOBQNKTR   "bqnktr"
212: #define TAOBQNKTL   "bqnktl"
213: #define TAOBQPIP    "bqpip"
214: #define TAOGPCG     "gpcg"
215: #define TAONM       "nm"
216: #define TAOPOUNDERS "pounders"
217: #define TAOBRGN     "brgn"
218: #define TAOLCL      "lcl"
219: #define TAOSSILS    "ssils"
220: #define TAOSSFLS    "ssfls"
221: #define TAOASILS    "asils"
222: #define TAOASFLS    "asfls"
223: #define TAOIPM      "ipm"
224: #define TAOPDIPM    "pdipm"
225: #define TAOSHELL    "shell"
226: #define TAOADMM     "admm"
227: #define TAOALMM     "almm"
228: #define TAOPYTHON   "python"
229: #define TAOSNES     "snes"

231: PETSC_EXTERN PetscClassId      TAO_CLASSID;
232: PETSC_EXTERN PetscFunctionList TaoList;

234: /*E
235:     TaoConvergedReason - reason a `Tao` optimizer was said to have converged or diverged

237:    Values:
238: +  `TAO_CONVERGED_GATOL`       - $\|g(X)\| < gatol$
239: .  `TAO_CONVERGED_GRTOL`       - $\|g(X)\| / f(X)  < grtol$
240: .  `TAO_CONVERGED_GTTOL`       - $\|g(X)\| / \|g(X0)\| < gttol$
241: .  `TAO_CONVERGED_STEPTOL`     - step size smaller than tolerance
242: .  `TAO_CONVERGED_MINF`        - $F < F_min$
243: .  `TAO_CONVERGED_USER`        - the user indicates the optimization has succeeded
244: .  `TAO_DIVERGED_MAXITS`       - the maximum number of iterations allowed has been achieved
245: .  `TAO_DIVERGED_NAN`          - not a number appeared in the computations
246: .  `TAO_DIVERGED_MAXFCN`       - the maximum number of function evaluations has been computed
247: .  `TAO_DIVERGED_LS_FAILURE`   - a linesearch failed
248: .  `TAO_DIVERGED_TR_REDUCTION` - trust region failure
249: .  `TAO_DIVERGED_USER`         - the user has indicated the optimization has failed
250: -  `TAO_CONTINUE_ITERATING`    - the optimization is still running, `TaoSolve()`

252:    where
253: +  X            - current solution
254: .  X0           - initial guess
255: .  f(X)         - current function value
256: .  f(X*)        - true solution (estimated)
257: .  g(X)         - current gradient
258: .  its          - current iterate number
259: .  maxits       - maximum number of iterates
260: .  fevals       - number of function evaluations
261: -  max_funcsals - maximum number of function evaluations

263:    Level: beginner

265:    Note:
266:    The two most common reasons for divergence are  an incorrectly coded or computed gradient or Hessian failure or lack of convergence
267:    in the linear system solve (in this case we recommend testing with `-pc_type lu` to eliminate the linear solver as the cause of the problem).

269:    Developer Note:
270:    The names in `KSPConvergedReason`, `SNESConvergedReason`, and `TaoConvergedReason` should be uniformized

272: .seealso: [](ch_tao), `Tao`, `TaoSolve()`, `TaoGetConvergedReason()`, `KSPConvergedReason`, `SNESConvergedReason`
273: E*/
274: typedef enum {               /* converged */
275:   TAO_CONVERGED_GATOL   = 3, /* ||g(X)|| < gatol */
276:   TAO_CONVERGED_GRTOL   = 4, /* ||g(X)|| / f(X)  < grtol */
277:   TAO_CONVERGED_GTTOL   = 5, /* ||g(X)|| / ||g(X0)|| < gttol */
278:   TAO_CONVERGED_STEPTOL = 6, /* step size small */
279:   TAO_CONVERGED_MINF    = 7, /* F < F_min */
280:   TAO_CONVERGED_USER    = 8, /* User defined */
281:   /* diverged */
282:   TAO_DIVERGED_MAXITS       = -2,
283:   TAO_DIVERGED_NAN          = -4,
284:   TAO_DIVERGED_MAXFCN       = -5,
285:   TAO_DIVERGED_LS_FAILURE   = -6,
286:   TAO_DIVERGED_TR_REDUCTION = -7,
287:   TAO_DIVERGED_USER         = -8, /* User defined */
288:   /* keep going */
289:   TAO_CONTINUE_ITERATING = 0
290: } TaoConvergedReason;

292: PETSC_EXTERN const char **TaoConvergedReasons;

294: PETSC_EXTERN PetscErrorCode TaoInitializePackage(void);
295: PETSC_EXTERN PetscErrorCode TaoFinalizePackage(void);
296: PETSC_EXTERN PetscErrorCode TaoCreate(MPI_Comm, Tao *);
297: PETSC_EXTERN PetscErrorCode TaoSetFromOptions(Tao);
298: PETSC_EXTERN PetscErrorCode TaoSetUp(Tao);
299: PETSC_EXTERN PetscErrorCode TaoSetType(Tao, TaoType);
300: PETSC_EXTERN PetscErrorCode TaoGetType(Tao, TaoType *);
301: PETSC_EXTERN PetscErrorCode TaoSetApplicationContext(Tao, PetscCtx);
302: PETSC_EXTERN PetscErrorCode TaoGetApplicationContext(Tao, PetscCtxRt);
303: PETSC_EXTERN PetscErrorCode TaoDestroy(Tao *);
304: PETSC_EXTERN PetscErrorCode TaoParametersInitialize(Tao);

306: PETSC_EXTERN PetscErrorCode TaoSetOptionsPrefix(Tao, const char[]);
307: PETSC_EXTERN PetscErrorCode TaoView(Tao, PetscViewer);
308: PETSC_EXTERN PetscErrorCode TaoViewFromOptions(Tao, PetscObject, const char[]);

310: PETSC_EXTERN PetscErrorCode TaoSolve(Tao);

312: PETSC_EXTERN PetscErrorCode TaoRegister(const char[], PetscErrorCode (*)(Tao));
313: PETSC_EXTERN PetscErrorCode TaoRegisterDestroy(void);

315: PETSC_EXTERN PetscErrorCode     TaoGetConvergedReason(Tao, TaoConvergedReason *);
316: PETSC_EXTERN TaoConvergedReason TaoConvergedReasonFromSNES(SNESConvergedReason);
317: PETSC_EXTERN PetscErrorCode     TaoGetConvergedReasonString(Tao, const char *[]);
318: PETSC_EXTERN PetscErrorCode     TaoGetSolutionStatus(Tao, PetscInt *, PetscReal *, PetscReal *, PetscReal *, PetscReal *, TaoConvergedReason *);
319: PETSC_EXTERN PetscErrorCode     TaoSetConvergedReason(Tao, TaoConvergedReason);
320: PETSC_EXTERN PetscErrorCode     TaoSetSolution(Tao, Vec);
321: PETSC_EXTERN PetscErrorCode     TaoGetSolution(Tao, Vec *);

323: PETSC_EXTERN PetscErrorCode TaoSetObjective(Tao, PetscErrorCode (*)(Tao, Vec, PetscReal *, PetscCtx), PetscCtx);
324: PETSC_EXTERN PetscErrorCode TaoGetObjective(Tao, PetscErrorCode (**)(Tao, Vec, PetscReal *, PetscCtx), PetscCtxRt);
325: PETSC_EXTERN PetscErrorCode TaoSetGradient(Tao, Vec, PetscErrorCode (*)(Tao, Vec, Vec, PetscCtx), PetscCtx);
326: PETSC_EXTERN PetscErrorCode TaoGetGradient(Tao, Vec *, PetscErrorCode (**)(Tao, Vec, Vec, PetscCtx), PetscCtxRt);
327: PETSC_EXTERN PetscErrorCode TaoSetObjectiveAndGradient(Tao, Vec, PetscErrorCode (*)(Tao, Vec, PetscReal *, Vec, PetscCtx), PetscCtx);
328: PETSC_EXTERN PetscErrorCode TaoGetObjectiveAndGradient(Tao, Vec *, PetscErrorCode (**)(Tao, Vec, PetscReal *, Vec, PetscCtx), PetscCtxRt);
329: PETSC_EXTERN PetscErrorCode TaoSetHessian(Tao, Mat, Mat, PetscErrorCode (*)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtx);
330: PETSC_EXTERN PetscErrorCode TaoGetHessian(Tao, Mat *, Mat *, PetscErrorCode (**)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtxRt);
331: PETSC_EXTERN PetscErrorCode TaoGetHessianMatrices(Tao, Mat *, Mat *);
332: PETSC_EXTERN PetscErrorCode TaoGetDM(Tao, DM *);
333: PETSC_EXTERN PetscErrorCode TaoSetDM(Tao, DM);

335: PETSC_EXTERN PetscErrorCode TaoSetGradientNorm(Tao, Mat);
336: PETSC_EXTERN PetscErrorCode TaoGetGradientNorm(Tao, Mat *);
337: PETSC_EXTERN PetscErrorCode TaoSetLMVMMatrix(Tao, Mat);
338: PETSC_EXTERN PetscErrorCode TaoGetLMVMMatrix(Tao, Mat *);
339: PETSC_EXTERN PetscErrorCode TaoSetRecycleHistory(Tao, PetscBool);
340: PETSC_EXTERN PetscErrorCode TaoGetRecycleHistory(Tao, PetscBool *);
341: PETSC_EXTERN PetscErrorCode TaoLMVMSetH0(Tao, Mat);
342: PETSC_EXTERN PetscErrorCode TaoLMVMGetH0(Tao, Mat *);
343: PETSC_EXTERN PetscErrorCode TaoLMVMGetH0KSP(Tao, KSP *);
344: PETSC_EXTERN PetscErrorCode TaoLMVMRecycle(Tao, PetscBool);
345: PETSC_EXTERN PetscErrorCode TaoSetResidualRoutine(Tao, Vec, PetscErrorCode (*)(Tao, Vec, Vec, PetscCtx), PetscCtx);
346: PETSC_EXTERN PetscErrorCode TaoSetResidualWeights(Tao, Vec, PetscInt, PetscInt *, PetscInt *, PetscReal *);
347: PETSC_EXTERN PetscErrorCode TaoSetConstraintsRoutine(Tao, Vec, PetscErrorCode (*)(Tao, Vec, Vec, PetscCtx), PetscCtx);
348: PETSC_EXTERN PetscErrorCode TaoSetInequalityConstraintsRoutine(Tao, Vec, PetscErrorCode (*)(Tao, Vec, Vec, PetscCtx), PetscCtx);
349: PETSC_EXTERN PetscErrorCode TaoGetInequalityConstraintsRoutine(Tao, Vec *, PetscErrorCode (**)(Tao, Vec, Vec, PetscCtx), PetscCtxRt);
350: PETSC_EXTERN PetscErrorCode TaoSetEqualityConstraintsRoutine(Tao, Vec, PetscErrorCode (*)(Tao, Vec, Vec, PetscCtx), PetscCtx);
351: PETSC_EXTERN PetscErrorCode TaoGetEqualityConstraintsRoutine(Tao, Vec *, PetscErrorCode (**)(Tao, Vec, Vec, PetscCtx), PetscCtxRt);
352: PETSC_EXTERN PetscErrorCode TaoSetJacobianResidualRoutine(Tao, Mat, Mat, PetscErrorCode (*)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtx);
353: PETSC_EXTERN PetscErrorCode TaoSetJacobianRoutine(Tao, Mat, Mat, PetscErrorCode (*)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtx);
354: PETSC_EXTERN PetscErrorCode TaoSetJacobianStateRoutine(Tao, Mat, Mat, Mat, PetscErrorCode (*)(Tao, Vec, Mat, Mat, Mat, PetscCtx), PetscCtx);
355: PETSC_EXTERN PetscErrorCode TaoSetJacobianDesignRoutine(Tao, Mat, PetscErrorCode (*)(Tao, Vec, Mat, PetscCtx), PetscCtx);
356: PETSC_EXTERN PetscErrorCode TaoSetJacobianInequalityRoutine(Tao, Mat, Mat, PetscErrorCode (*)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtx);
357: PETSC_EXTERN PetscErrorCode TaoGetJacobianInequalityRoutine(Tao, Mat *, Mat *, PetscErrorCode (**)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtxRt);
358: PETSC_EXTERN PetscErrorCode TaoSetJacobianEqualityRoutine(Tao, Mat, Mat, PetscErrorCode (*)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtx);
359: PETSC_EXTERN PetscErrorCode TaoGetJacobianEqualityRoutine(Tao, Mat *, Mat *, PetscErrorCode (**)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtxRt);

361: PETSC_EXTERN PetscErrorCode TaoPythonSetType(Tao, const char[]);
362: PETSC_EXTERN PetscErrorCode TaoPythonGetType(Tao, const char *[]);

364: PETSC_EXTERN PetscErrorCode TaoShellSetSolve(Tao, PetscErrorCode (*)(Tao));
365: PETSC_EXTERN PetscErrorCode TaoShellSetContext(Tao, PetscCtx);
366: PETSC_EXTERN PetscErrorCode TaoShellGetContext(Tao, PetscCtxRt);

368: PETSC_EXTERN PetscErrorCode TaoSetStateDesignIS(Tao, IS, IS);

370: PETSC_EXTERN PetscErrorCode TaoComputeObjective(Tao, Vec, PetscReal *);
371: PETSC_EXTERN PetscErrorCode TaoComputeResidual(Tao, Vec, Vec);
372: PETSC_EXTERN PetscErrorCode TaoTestGradient(Tao, Vec, Vec);
373: PETSC_EXTERN PetscErrorCode TaoComputeGradient(Tao, Vec, Vec);
374: PETSC_EXTERN PetscErrorCode TaoComputeObjectiveAndGradient(Tao, Vec, PetscReal *, Vec);
375: PETSC_EXTERN PetscErrorCode TaoComputeConstraints(Tao, Vec, Vec);
376: PETSC_EXTERN PetscErrorCode TaoComputeInequalityConstraints(Tao, Vec, Vec);
377: PETSC_EXTERN PetscErrorCode TaoComputeEqualityConstraints(Tao, Vec, Vec);
378: PETSC_EXTERN PetscErrorCode TaoDefaultComputeGradient(Tao, Vec, Vec, PetscCtx);
379: PETSC_EXTERN PetscErrorCode TaoIsObjectiveDefined(Tao, PetscBool *);
380: PETSC_EXTERN PetscErrorCode TaoIsGradientDefined(Tao, PetscBool *);
381: PETSC_EXTERN PetscErrorCode TaoIsObjectiveAndGradientDefined(Tao, PetscBool *);

383: PETSC_EXTERN PetscErrorCode TaoTestHessian(Tao);
384: PETSC_EXTERN PetscErrorCode TaoComputeHessian(Tao, Vec, Mat, Mat);
385: PETSC_EXTERN PetscErrorCode TaoComputeResidualJacobian(Tao, Vec, Mat, Mat);
386: PETSC_EXTERN PetscErrorCode TaoComputeJacobian(Tao, Vec, Mat, Mat);
387: PETSC_EXTERN PetscErrorCode TaoComputeJacobianState(Tao, Vec, Mat, Mat, Mat);
388: PETSC_EXTERN PetscErrorCode TaoComputeJacobianEquality(Tao, Vec, Mat, Mat);
389: PETSC_EXTERN PetscErrorCode TaoComputeJacobianInequality(Tao, Vec, Mat, Mat);
390: PETSC_EXTERN PetscErrorCode TaoComputeJacobianDesign(Tao, Vec, Mat);

392: PETSC_EXTERN PetscErrorCode TaoDefaultComputeHessian(Tao, Vec, Mat, Mat, PetscCtx);
393: PETSC_EXTERN PetscErrorCode TaoDefaultComputeHessianColor(Tao, Vec, Mat, Mat, PetscCtx);
394: PETSC_EXTERN PetscErrorCode TaoDefaultComputeHessianMFFD(Tao, Vec, Mat, Mat, PetscCtx);
395: PETSC_EXTERN PetscErrorCode TaoComputeDualVariables(Tao, Vec, Vec);
396: PETSC_EXTERN PetscErrorCode TaoSetVariableBounds(Tao, Vec, Vec);
397: PETSC_EXTERN PetscErrorCode TaoGetVariableBounds(Tao, Vec *, Vec *);
398: PETSC_EXTERN PetscErrorCode TaoGetDualVariables(Tao, Vec *, Vec *);
399: PETSC_EXTERN PetscErrorCode TaoSetInequalityBounds(Tao, Vec, Vec);
400: PETSC_EXTERN PetscErrorCode TaoGetInequalityBounds(Tao, Vec *, Vec *);
401: PETSC_EXTERN PetscErrorCode TaoSetVariableBoundsRoutine(Tao, PetscErrorCode (*)(Tao, Vec, Vec, PetscCtx), PetscCtx);
402: PETSC_EXTERN PetscErrorCode TaoComputeVariableBounds(Tao);

404: PETSC_EXTERN PetscErrorCode TaoGetTolerances(Tao, PetscReal *, PetscReal *, PetscReal *);
405: PETSC_EXTERN PetscErrorCode TaoSetTolerances(Tao, PetscReal, PetscReal, PetscReal);
406: PETSC_EXTERN PetscErrorCode TaoGetConstraintTolerances(Tao, PetscReal *, PetscReal *);
407: PETSC_EXTERN PetscErrorCode TaoSetConstraintTolerances(Tao, PetscReal, PetscReal);
408: PETSC_EXTERN PetscErrorCode TaoSetFunctionLowerBound(Tao, PetscReal);
409: PETSC_EXTERN PetscErrorCode TaoSetInitialTrustRegionRadius(Tao, PetscReal);
410: PETSC_EXTERN PetscErrorCode TaoSetMaximumIterations(Tao, PetscInt);
411: PETSC_EXTERN PetscErrorCode TaoSetMaximumFunctionEvaluations(Tao, PetscInt);
412: PETSC_EXTERN PetscErrorCode TaoGetFunctionLowerBound(Tao, PetscReal *);
413: PETSC_EXTERN PetscErrorCode TaoGetInitialTrustRegionRadius(Tao, PetscReal *);
414: PETSC_EXTERN PetscErrorCode TaoGetCurrentTrustRegionRadius(Tao, PetscReal *);
415: PETSC_EXTERN PetscErrorCode TaoGetMaximumIterations(Tao, PetscInt *);
416: PETSC_EXTERN PetscErrorCode TaoGetCurrentFunctionEvaluations(Tao, PetscInt *);
417: PETSC_EXTERN PetscErrorCode TaoGetMaximumFunctionEvaluations(Tao, PetscInt *);
418: PETSC_EXTERN PetscErrorCode TaoGetIterationNumber(Tao, PetscInt *);
419: PETSC_EXTERN PetscErrorCode TaoSetIterationNumber(Tao, PetscInt);
420: PETSC_EXTERN PetscErrorCode TaoGetTotalIterationNumber(Tao, PetscInt *);
421: PETSC_EXTERN PetscErrorCode TaoSetTotalIterationNumber(Tao, PetscInt);
422: PETSC_EXTERN PetscErrorCode TaoGetResidualNorm(Tao, PetscReal *);

424: PETSC_EXTERN PetscErrorCode TaoAppendOptionsPrefix(Tao, const char[]);
425: PETSC_EXTERN PetscErrorCode TaoGetOptionsPrefix(Tao, const char *[]);
426: PETSC_EXTERN PetscErrorCode TaoResetStatistics(Tao);
427: PETSC_EXTERN PetscErrorCode TaoSetUpdate(Tao, PetscErrorCode (*)(Tao, PetscInt, PetscCtx), PetscCtx);

429: PETSC_EXTERN PetscErrorCode TaoGetKSP(Tao, KSP *);
430: PETSC_EXTERN PetscErrorCode TaoGetLinearSolveIterations(Tao, PetscInt *);
431: PETSC_EXTERN PetscErrorCode TaoKSPSetUseEW(Tao, PetscBool);

433: #include <petsctaolinesearch.h>

435: PETSC_EXTERN PetscErrorCode TaoGetLineSearch(Tao, TaoLineSearch *);

437: PETSC_EXTERN PetscErrorCode TaoSetConvergenceHistory(Tao, PetscReal *, PetscReal *, PetscReal *, PetscInt *, PetscInt, PetscBool);
438: PETSC_EXTERN PetscErrorCode TaoGetConvergenceHistory(Tao, PetscReal **, PetscReal **, PetscReal **, PetscInt **, PetscInt *);
439: PETSC_EXTERN PetscErrorCode TaoMonitorSet(Tao, PetscErrorCode (*)(Tao, PetscCtx), PetscCtx, PetscCtxDestroyFn *);
440: PETSC_EXTERN PetscErrorCode TaoMonitorSetFromOptions(Tao, const char[], const char[], const char[], PetscErrorCode (*)(Tao, PetscViewerAndFormat *));
441: PETSC_EXTERN PetscErrorCode TaoMonitorCancel(Tao);
442: PETSC_EXTERN PetscErrorCode TaoMonitorDefault(Tao, PetscViewerAndFormat *);
443: PETSC_EXTERN PetscErrorCode TaoMonitorGlobalization(Tao, PetscViewerAndFormat *);
444: PETSC_EXTERN PetscErrorCode TaoMonitorConstraintNorm(Tao, PetscViewerAndFormat *);
445: PETSC_EXTERN PetscErrorCode TaoMonitorSolution(Tao, PetscViewerAndFormat *);
446: PETSC_EXTERN PetscErrorCode TaoMonitorResidual(Tao, PetscViewerAndFormat *);
447: PETSC_EXTERN PetscErrorCode TaoMonitorGradient(Tao, PetscViewerAndFormat *);
448: PETSC_EXTERN PetscErrorCode TaoMonitorStep(Tao, PetscViewerAndFormat *);
449: PETSC_EXTERN PetscErrorCode TaoMonitorSolutionDraw(Tao, PetscCtx);
450: PETSC_EXTERN PetscErrorCode TaoMonitorStepDraw(Tao, PetscCtx);
451: PETSC_EXTERN PetscErrorCode TaoMonitorGradientDraw(Tao, PetscCtx);
452: PETSC_EXTERN PetscErrorCode TaoAddLineSearchCounts(Tao);

454: PETSC_EXTERN PetscErrorCode TaoDefaultConvergenceTest(Tao, PetscCtx);
455: PETSC_EXTERN PetscErrorCode TaoSetConvergenceTest(Tao, PetscErrorCode (*)(Tao, PetscCtx), PetscCtx);

457: PETSC_EXTERN PetscErrorCode TaoMonitor(Tao, PetscInt, PetscReal, PetscReal, PetscReal, PetscReal);
458: /*S
459:   TaoMonitorDrawCtx - Context object for the `Tao` graphical monitor routines that draw convergence information on a `PetscDraw`

461:   Level: developer

463: .seealso: `Tao`, `TaoMonitorDrawCtxCreate()`, `TaoMonitorDrawCtxDestroy()`, `TaoMonitorSet()`
464: S*/
465: typedef struct _n_TaoMonitorDrawCtx *TaoMonitorDrawCtx;
466: PETSC_EXTERN PetscErrorCode          TaoMonitorDrawCtxCreate(MPI_Comm, const char[], const char[], int, int, int, int, PetscInt, TaoMonitorDrawCtx *);
467: PETSC_EXTERN PetscErrorCode          TaoMonitorDrawCtxDestroy(TaoMonitorDrawCtx *);

469: /*E
470:   TaoBRGNRegularizationType - The regularization added in the `TAOBRGN` solver.

472:   Values:
473: + TAOBRGN_REGULARIZATION_USER   - A user-defined regularizer
474: . TAOBRGN_REGULARIZATION_L2PROX - $\tfrac{1}{2}\|x - x_k\|_2^$, where $x_k$ is the latest solution
475: . TAOBRGN_REGULARIZATION_L2PURE - $\tfrac{1}{2}\|x\|_2^2$
476: . TAOBRGN_REGULARIZATION_L1DICT - $\|D x\|_1$, where $D$ is a dictionary matrix
477: - TAOBRGN_REGULARIZATION_LM     - Levenberg-Marquardt, $\tfrac{1}{2} x^T \mathrm{diag}(J^T J) x$, where $J$ is the Jacobian of the least-squares residual

479:   Options database Key:
480: . -tao_brgn_regularization_type (l2prox|l2pure|l1dict|lm|user) - select one of the regularization types

482:   Level: advanced

484:   Notes:
485:   If `TAOBRGN_REGULARIZATION_USER`, the regularizer is set either by calling
486:   `TaoBRGNSetRegularizerObjectiveAndGradientRoutine()` and
487:   `TaoBRGNSetRegulazerHessianRoutine()`

489:   If `TAOBRGN_REGULARIZATION_L1DICT`, the dictionary matrix is set with `TaoBRGNSetDictionaryMatrix()` and the smoothing parameter of the
490:   approximate $\ell_1$ norm is set with `TaoBRGNSetL1SmoothEpsilon()`.

492:   If `TAOBRGN_REGULARIZATION_LM`, the diagonal damping vector $\mathrm{diag}(J^T J)$ can be obtained with `TaoBRGNGetDampingVector()`.

494: .seealso: [](ch_tao), `Tao`, `TaoBRGNGetSubsolver()`, `TaoBRGNSetRegularizerWeight()`, `TaoBRGNSetL1SmoothEpsilon()`, `TaoBRGNSetDictionaryMatrix()`,
495:           `TaoBRGNSetRegularizerObjectiveAndGradientRoutine()`, `TaoBRGNSetRegularizerHessianRoutine()`,
496:           `TaoBRGNGetRegularizationType()`, `TaoBRGNSetRegularizationType()`
497: E*/
498: typedef enum {
499:   TAOBRGN_REGULARIZATION_USER,
500:   TAOBRGN_REGULARIZATION_L2PROX,
501:   TAOBRGN_REGULARIZATION_L2PURE,
502:   TAOBRGN_REGULARIZATION_L1DICT,
503:   TAOBRGN_REGULARIZATION_LM,
504: } TaoBRGNRegularizationType;

506: PETSC_EXTERN const char *const TaoBRGNRegularizationTypes[];

508: PETSC_EXTERN PetscErrorCode TaoBRGNGetSubsolver(Tao, Tao *);
509: PETSC_EXTERN PetscErrorCode TaoBRGNGetRegularizationType(Tao, TaoBRGNRegularizationType *);
510: PETSC_EXTERN PetscErrorCode TaoBRGNSetRegularizationType(Tao, TaoBRGNRegularizationType);
511: PETSC_EXTERN PetscErrorCode TaoBRGNSetRegularizerObjectiveAndGradientRoutine(Tao, PetscErrorCode (*)(Tao, Vec, PetscReal *, Vec, PetscCtx), PetscCtx);
512: PETSC_EXTERN PetscErrorCode TaoBRGNSetRegularizerHessianRoutine(Tao, Mat, PetscErrorCode (*)(Tao, Vec, Mat, PetscCtx), PetscCtx);
513: PETSC_EXTERN PetscErrorCode TaoBRGNSetRegularizerWeight(Tao, PetscReal);
514: PETSC_EXTERN PetscErrorCode TaoBRGNSetL1SmoothEpsilon(Tao, PetscReal);
515: PETSC_EXTERN PetscErrorCode TaoBRGNSetDictionaryMatrix(Tao, Mat);
516: PETSC_EXTERN PetscErrorCode TaoBRGNGetDampingVector(Tao, Vec *);

518: PETSC_EXTERN PetscErrorCode TaoBNCGSetType(Tao, TaoBNCGType);
519: PETSC_EXTERN PetscErrorCode TaoBNCGGetType(Tao, TaoBNCGType *);

521: PETSC_EXTERN PetscErrorCode TaoADMMGetMisfitSubsolver(Tao, Tao *);
522: PETSC_EXTERN PetscErrorCode TaoADMMGetRegularizationSubsolver(Tao, Tao *);
523: PETSC_EXTERN PetscErrorCode TaoADMMGetDualVector(Tao, Vec *);
524: PETSC_EXTERN PetscErrorCode TaoADMMGetSpectralPenalty(Tao, PetscReal *);
525: PETSC_EXTERN PetscErrorCode TaoADMMSetSpectralPenalty(Tao, PetscReal);
526: PETSC_EXTERN PetscErrorCode TaoGetADMMParentTao(Tao, Tao *);
527: PETSC_EXTERN PetscErrorCode TaoADMMSetConstraintVectorRHS(Tao, Vec);
528: PETSC_EXTERN PetscErrorCode TaoADMMSetRegularizerCoefficient(Tao, PetscReal);
529: PETSC_EXTERN PetscErrorCode TaoADMMGetRegularizerCoefficient(Tao, PetscReal *);
530: PETSC_EXTERN PetscErrorCode TaoADMMSetMisfitConstraintJacobian(Tao, Mat, Mat, PetscErrorCode (*)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtx);
531: PETSC_EXTERN PetscErrorCode TaoADMMSetRegularizerConstraintJacobian(Tao, Mat, Mat, PetscErrorCode (*)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtx);
532: PETSC_EXTERN PetscErrorCode TaoADMMSetRegularizerHessianRoutine(Tao, Mat, Mat, PetscErrorCode (*)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtx);
533: PETSC_EXTERN PetscErrorCode TaoADMMSetRegularizerObjectiveAndGradientRoutine(Tao, PetscErrorCode (*)(Tao, Vec, PetscReal *, Vec, PetscCtx), PetscCtx);
534: PETSC_EXTERN PetscErrorCode TaoADMMSetMisfitHessianRoutine(Tao, Mat, Mat, PetscErrorCode (*)(Tao, Vec, Mat, Mat, PetscCtx), PetscCtx);
535: PETSC_EXTERN PetscErrorCode TaoADMMSetMisfitObjectiveAndGradientRoutine(Tao, PetscErrorCode (*)(Tao, Vec, PetscReal *, Vec, PetscCtx), PetscCtx);
536: PETSC_EXTERN PetscErrorCode TaoADMMSetMisfitHessianChangeStatus(Tao, PetscBool);
537: PETSC_EXTERN PetscErrorCode TaoADMMSetRegHessianChangeStatus(Tao, PetscBool);
538: PETSC_EXTERN PetscErrorCode TaoADMMSetMinimumSpectralPenalty(Tao, PetscReal);
539: PETSC_EXTERN PetscErrorCode TaoADMMSetRegularizerType(Tao, TaoADMMRegularizerType);
540: PETSC_EXTERN PetscErrorCode TaoADMMGetRegularizerType(Tao, TaoADMMRegularizerType *);
541: PETSC_EXTERN PetscErrorCode TaoADMMSetUpdateType(Tao, TaoADMMUpdateType);
542: PETSC_EXTERN PetscErrorCode TaoADMMGetUpdateType(Tao, TaoADMMUpdateType *);

544: PETSC_EXTERN PetscErrorCode TaoALMMGetType(Tao, TaoALMMType *);
545: PETSC_EXTERN PetscErrorCode TaoALMMSetType(Tao, TaoALMMType);
546: PETSC_EXTERN PetscErrorCode TaoALMMGetSubsolver(Tao, Tao *);
547: PETSC_EXTERN PetscErrorCode TaoALMMSetSubsolver(Tao, Tao);
548: PETSC_EXTERN PetscErrorCode TaoALMMGetMultipliers(Tao, Vec *);
549: PETSC_EXTERN PetscErrorCode TaoALMMSetMultipliers(Tao, Vec);
550: PETSC_EXTERN PetscErrorCode TaoALMMGetPrimalIS(Tao, IS *, IS *);
551: PETSC_EXTERN PetscErrorCode TaoALMMGetDualIS(Tao, IS *, IS *);

553: PETSC_EXTERN PetscErrorCode TaoSNESGetSNES(Tao, SNES *);

555: PETSC_EXTERN PetscErrorCode TaoVecGetSubVec(Vec, IS, TaoSubsetType, PetscReal, Vec *);
556: PETSC_EXTERN PetscErrorCode TaoMatGetSubMat(Mat, IS, Vec, TaoSubsetType, Mat *);
557: PETSC_EXTERN PetscErrorCode TaoGradientNorm(Tao, Vec, NormType, PetscReal *);
558: PETSC_EXTERN PetscErrorCode TaoEstimateActiveBounds(Vec, Vec, Vec, Vec, Vec, Vec, PetscReal, PetscReal *, IS *, IS *, IS *, IS *, IS *);
559: PETSC_EXTERN PetscErrorCode TaoBoundStep(Vec, Vec, Vec, IS, IS, IS, PetscReal, Vec);
560: PETSC_EXTERN PetscErrorCode TaoBoundSolution(Vec, Vec, Vec, PetscReal, PetscInt *, Vec);

562: PETSC_EXTERN PetscErrorCode MatCreateSubMatrixFree(Mat, IS, IS, Mat *);

564: PETSC_EXTERN PetscErrorCode TaoGetTerm(Tao, PetscReal *, TaoTerm *, Vec *, Mat *);
565: PETSC_EXTERN PetscErrorCode TaoAddTerm(Tao, const char[], PetscReal, TaoTerm, Vec, Mat);

567: #include <petsctao_deprecations.h>