Actual source code: petscsnes.h

  1: /*
  2:     User interface for the nonlinear solvers package.
  3: */
 6:  #include petscksp.h

  9: /*S
 10:      SNES - Abstract PETSc object that manages all nonlinear solves

 12:    Level: beginner

 14:   Concepts: nonlinear solvers

 16: .seealso:  SNESCreate(), SNESSetType(), SNESType, TS, KSP, KSP, PC
 17: S*/
 18: typedef struct _p_SNES* SNES;

 20: /*E
 21:     SNESType - String with the name of a PETSc SNES method or the creation function
 22:        with an optional dynamic library name, for example
 23:        http://www.mcs.anl.gov/petsc/lib.a:mysnescreate()

 25:    Level: beginner

 27: .seealso: SNESSetType(), SNES
 28: E*/
 29: #define SNESLS          "ls"
 30: #define SNESTR          "tr"
 31: #define SNESTEST        "test"
 32: #define SNESType const char*

 34: /* Logging support */

 40: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESInitializePackage(const char[]);

 42: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESCreate(MPI_Comm,SNES*);
 43: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDestroy(SNES);
 44: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetType(SNES,SNESType);
 45: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetMonitor(SNES,PetscErrorCode(*)(SNES,PetscInt,PetscReal,void*),void *,PetscErrorCode (*)(void*));
 46: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESClearMonitor(SNES);
 47: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetConvergenceHistory(SNES,PetscReal[],PetscInt[],PetscInt,PetscTruth);
 48: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetConvergenceHistory(SNES,PetscReal*[],PetscInt *[],PetscInt *);
 49: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetUp(SNES);
 50: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSolve(SNES,Vec,Vec);

 52: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESAddOptionsChecker(PetscErrorCode (*)(SNES));

 54: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetUpdate(SNES, PetscErrorCode (*)(SNES, PetscInt));
 55: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultUpdate(SNES, PetscInt);

 58: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESRegisterDestroy(void);
 59: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESRegisterAll(const char[]);

 61: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESRegister(const char[],const char[],const char[],PetscErrorCode (*)(SNES));

 63: /*MC
 64:    SNESRegisterDynamic - Adds a method to the nonlinear solver package.

 66:    Synopsis:
 67:    PetscErrorCode SNESRegisterDynamic(char *name_solver,char *path,char *name_create,PetscErrorCode (*routine_create)(SNES))

 69:    Not collective

 71:    Input Parameters:
 72: +  name_solver - name of a new user-defined solver
 73: .  path - path (either absolute or relative) the library containing this solver
 74: .  name_create - name of routine to create method context
 75: -  routine_create - routine to create method context

 77:    Notes:
 78:    SNESRegisterDynamic() may be called multiple times to add several user-defined solvers.

 80:    If dynamic libraries are used, then the fourth input argument (routine_create)
 81:    is ignored.

 83:    Environmental variables such as ${PETSC_ARCH}, ${PETSC_DIR}, ${PETSC_LIB_DIR},
 84:    and others of the form ${any_environmental_variable} occuring in pathname will be 
 85:    replaced with appropriate values.

 87:    Sample usage:
 88: .vb
 89:    SNESRegisterDynamic("my_solver",/home/username/my_lib/lib/libg/solaris/mylib.a,
 90:                 "MySolverCreate",MySolverCreate);
 91: .ve

 93:    Then, your solver can be chosen with the procedural interface via
 94: $     SNESSetType(snes,"my_solver")
 95:    or at runtime via the option
 96: $     -snes_type my_solver

 98:    Level: advanced

100:     Note: If your function is not being put into a shared library then use SNESRegister() instead

102: .keywords: SNES, nonlinear, register

104: .seealso: SNESRegisterAll(), SNESRegisterDestroy()
105: M*/
106: #if defined(PETSC_USE_DYNAMIC_LIBRARIES)
107: #define SNESRegisterDynamic(a,b,c,d) SNESRegister(a,b,c,0)
108: #else
109: #define SNESRegisterDynamic(a,b,c,d) SNESRegister(a,b,c,d)
110: #endif

112: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetKSP(SNES,KSP*);
113: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetSolution(SNES,Vec*);
114: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetSolutionUpdate(SNES,Vec*);
115: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetFunction(SNES,Vec*,PetscErrorCode(**)(SNES,Vec,Vec,void*),void**);
116: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESView(SNES,PetscViewer);

118: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetOptionsPrefix(SNES,const char[]);
119: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESAppendOptionsPrefix(SNES,const char[]);
120: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetOptionsPrefix(SNES,const char*[]);
121: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetFromOptions(SNES);

123: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatCreateSNESMF(SNES,Vec,Mat*);
124: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatCreateMF(Vec,Mat*);
125: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetBase(Mat,Vec);
126: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*,void*);
127: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunction(Mat,Vec,PetscErrorCode(*)(SNES,Vec,Vec,void*),void*);
128: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunctioni(Mat,PetscErrorCode (*)(PetscInt,Vec,PetscScalar*,void*));
129: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunctioniBase(Mat,PetscErrorCode (*)(Vec,void*));
130: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFAddNullSpace(Mat,MatNullSpace);
131: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetHHistory(Mat,PetscScalar[],PetscInt);
132: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFResetHHistory(Mat);
133: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunctionError(Mat,PetscReal);
134: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetPeriod(Mat,PetscInt);
135: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFGetH(Mat,PetscScalar *);
136: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFKSPMonitor(KSP,PetscInt,PetscReal,void *);
137: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFromOptions(Mat);
138: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFCheckPositivity(Vec,Vec,PetscScalar*,void*);
139: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetCheckh(Mat,PetscErrorCode (*)(Vec,Vec,PetscScalar*,void*),void*);

141: typedef struct _p_MatSNESMFCtx   *MatSNESMFCtx;

143: #define MATSNESMF_DEFAULT "default"
144: #define MATSNESMF_WP      "wp"
145: #define MatSNESMFType char*
146: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetType(Mat,const MatSNESMFType);
147: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFRegister(const char[],const char[],const char[],PetscErrorCode (*)(MatSNESMFCtx));

149: /*MC
150:    MatSNESMFRegisterDynamic - Adds a method to the MatSNESMF registry.

152:    Synopsis:
153:    PetscErrorCode MatSNESMFRegisterDynamic(char *name_solver,char *path,char *name_create,PetscErrorCode (*routine_create)(MatSNESMF))

155:    Not Collective

157:    Input Parameters:
158: +  name_solver - name of a new user-defined compute-h module
159: .  path - path (either absolute or relative) the library containing this solver
160: .  name_create - name of routine to create method context
161: -  routine_create - routine to create method context

163:    Level: developer

165:    Notes:
166:    MatSNESMFRegisterDynamic) may be called multiple times to add several user-defined solvers.

168:    If dynamic libraries are used, then the fourth input argument (routine_create)
169:    is ignored.

171:    Sample usage:
172: .vb
173:    MatSNESMFRegisterDynamic"my_h",/home/username/my_lib/lib/libO/solaris/mylib.a,
174:                "MyHCreate",MyHCreate);
175: .ve

177:    Then, your solver can be chosen with the procedural interface via
178: $     MatSNESMFSetType(mfctx,"my_h")
179:    or at runtime via the option
180: $     -snes_mf_type my_h

182: .keywords: MatSNESMF, register

184: .seealso: MatSNESMFRegisterAll(), MatSNESMFRegisterDestroy()
185: M*/
186: #if defined(PETSC_USE_DYNAMIC_LIBRARIES)
187: #define MatSNESMFRegisterDynamic(a,b,c,d) MatSNESMFRegister(a,b,c,0)
188: #else
189: #define MatSNESMFRegisterDynamic(a,b,c,d) MatSNESMFRegister(a,b,c,d)
190: #endif

192: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFRegisterAll(const char[]);
193: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFRegisterDestroy(void);
194: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFDefaultSetUmin(Mat,PetscReal);
195: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFWPSetComputeNormA(Mat,PetscTruth);
196: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFWPSetComputeNormU(Mat,PetscTruth);

198: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatDAADSetSNES(Mat,SNES);

200: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetType(SNES,SNESType*);
201: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultMonitor(SNES,PetscInt,PetscReal,void *);
202: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESRatioMonitor(SNES,PetscInt,PetscReal,void *);
203: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetRatioMonitor(SNES);
204: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESVecViewMonitor(SNES,PetscInt,PetscReal,void *);
205: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESVecViewResidualMonitor(SNES,PetscInt,PetscReal,void *);
206: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESVecViewUpdateMonitor(SNES,PetscInt,PetscReal,void *);
207: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultSMonitor(SNES,PetscInt,PetscReal,void *);
208: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetTolerances(SNES,PetscReal,PetscReal,PetscReal,PetscInt,PetscInt);
209: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetTolerances(SNES,PetscReal*,PetscReal*,PetscReal*,PetscInt*,PetscInt*);
210: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetTrustRegionTolerance(SNES,PetscReal);
211: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetIterationNumber(SNES,PetscInt*);
212: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetFunctionNorm(SNES,PetscScalar*);
213: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetNumberUnsuccessfulSteps(SNES,PetscInt*);
214: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetMaximumUnsuccessfulSteps(SNES,PetscInt);
215: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetMaximumUnsuccessfulSteps(SNES,PetscInt*);
216: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetNumberLinearIterations(SNES,PetscInt*);
217: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNES_KSP_SetParametersEW(SNES,PetscInt,PetscReal,PetscReal,PetscReal,PetscReal,PetscReal,PetscReal);
218: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNES_KSP_SetConvergenceTestEW(SNES);

220: /*
221:      Reuse the default KSP monitor routines for SNES
222: */
223: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLGMonitorCreate(const char[],const char[],int,int,int,int,PetscDrawLG*);
224: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLGMonitor(SNES,PetscInt,PetscReal,void*);
225: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLGMonitorDestroy(PetscDrawLG);

227: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetApplicationContext(SNES,void *);
228: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetApplicationContext(SNES,void **);

230: /*E
231:     SNESConvergedReason - reason a SNES method was said to 
232:          have converged or diverged

234:    Level: beginner

236:    Notes: this must match finclude/petscsnes.h 

238:    Developer note: The string versions of these are in 
239:      src/snes/interface/snes.c called convergedreasons.
240:      If these enums are changed you much change those.

242: .seealso: SNESSolve(), SNESGetConvergedReason(), KSPConvergedReason, SNESSetConvergenceTest()
243: E*/
244: typedef enum {/* converged */
245:               SNES_CONVERGED_FNORM_ABS         =  2, /* F < F_minabs */
246:               SNES_CONVERGED_FNORM_RELATIVE    =  3, /* F < F_mintol*F_initial */
247:               SNES_CONVERGED_PNORM_RELATIVE    =  4, /* step size small */
248:               SNES_CONVERGED_TR_DELTA          =  7,
249:               /* diverged */
250:               SNES_DIVERGED_FUNCTION_DOMAIN    = -1,
251:               SNES_DIVERGED_FUNCTION_COUNT     = -2,
252:               SNES_DIVERGED_FNORM_NAN          = -4,
253:               SNES_DIVERGED_MAX_IT             = -5,
254:               SNES_DIVERGED_LS_FAILURE         = -6,
255:               SNES_DIVERGED_LOCAL_MIN          = -8,  /* || J^T b || is small, implies converged to local minimum of F() */
256:               SNES_CONVERGED_ITERATING         =  0} SNESConvergedReason;

259: /*MC
260:      SNES_CONVERGED_FNORM_ABS - 2-norm(F) <= abstol

262:    Level: beginner

264: .seealso:  SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances()

266: M*/

268: /*MC
269:      SNES_CONVERGED_FNORM_RELATIVE - 2-norm(F) <= rtol*2-norm(F(x_0)) where x_0 is the initial guess

271:    Level: beginner

273: .seealso:  SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances()

275: M*/

277: /*MC
278:      SNES_CONVERGED_PNORM_RELATIVE - The 2-norm of the last step <= xtol * 2-norm(x) where x is the current
279:           solution and xtol is the 4th argument to SNESSetTolerances()

281:    Level: beginner

283: .seealso:  SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances()

285: M*/

287: /*MC
288:      SNES_DIVERGED_FUNCTION_COUNT - The user provided function has been called more times then the final
289:          argument to SNESSetTolerances()

291:    Level: beginner

293: .seealso:  SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances()

295: M*/

297: /*MC
298:      SNES_DIVERGED_FNORM_NAN - the 2-norm of the current function evaluation is not-a-number (NaN), this
299:       is usually caused by a division of 0 by 0.

301:    Level: beginner

303: .seealso:  SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances()

305: M*/

307: /*MC
308:      SNES_DIVERGED_MAX_IT - SNESSolve() has reached the maximum number of iterations requested

310:    Level: beginner

312: .seealso:  SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances()

314: M*/

316: /*MC
317:      SNES_DIVERGED_LS_FAILURE - The line search has failed. This only occurs for a SNESType of SNESLS

319:    Level: beginner

321: .seealso:  SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances()

323: M*/

325: /*MC
326:      SNES_DIVERGED_LOCAL_MIN - the algorithm seems to have stagnated at a local minimum that is not zero

328:    Level: beginner

330: .seealso:  SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances()

332: M*/

334: /*MC
335:      SNES_CONERGED_ITERATING - this only occurs if SNESGetConvergedReason() is called during the SNESSolve()

337:    Level: beginner

339: .seealso:  SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances()

341: M*/

343: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetConvergenceTest(SNES,PetscErrorCode (*)(SNES,PetscReal,PetscReal,PetscReal,SNESConvergedReason*,void*),void*);
344: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESConverged_LS(SNES,PetscReal,PetscReal,PetscReal,SNESConvergedReason*,void*);
345: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESConverged_TR(SNES,PetscReal,PetscReal,PetscReal,SNESConvergedReason*,void*);
346: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetConvergedReason(SNES,SNESConvergedReason*);

348: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAFormFunction(SNES,Vec,Vec,void*);
349: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAComputeJacobianWithAdic(SNES,Vec,Mat*,Mat*,MatStructure*,void*);
350: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAComputeJacobianWithAdifor(SNES,Vec,Mat*,Mat*,MatStructure*,void*);
351: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*,void*);

353: /* --------- Solving systems of nonlinear equations --------------- */
354: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetFunction(SNES,Vec,PetscErrorCode(*)(SNES,Vec,Vec,void*),void *);
355: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESComputeFunction(SNES,Vec,Vec);
356: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetJacobian(SNES,Mat,Mat,PetscErrorCode(*)(SNES,Vec,Mat*,Mat*,MatStructure*,void*),void *);
357: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetJacobian(SNES,Mat*,Mat*,PetscErrorCode(**)(SNES,Vec,Mat*,Mat*,MatStructure*,void*),void **);
358: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*,void*);
359: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultComputeJacobianColor(SNES,Vec,Mat*,Mat*,MatStructure*,void*);
360: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetRhs(SNES,Vec);
361: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetRhs(SNES,Vec*);

363: /* --------- Routines specifically for line search methods --------------- */
364: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSet(SNES,PetscErrorCode(*)(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*),void*);
365: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchNo(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*);
366: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchNoNorms(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*);
367: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchCubic(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*);
368: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchQuadratic(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*);

370: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSetPostCheck(SNES,PetscErrorCode(*)(SNES,Vec,Vec,Vec,void*,PetscTruth*,PetscTruth*),void*);
371: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSetPreCheck(SNES,PetscErrorCode(*)(SNES,Vec,Vec,void*,PetscTruth*),void*);
372: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSetParams(SNES,PetscReal,PetscReal,PetscReal);
373: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchGetParams(SNES,PetscReal*,PetscReal*,PetscReal*);

375: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESTestLocalMin(SNES snes);

377: /* Should this routine be private? */
378: EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*);

381: #endif