1 /* 2 User interface for the nonlinear solvers package. 3 */ 4 #if !defined(__PETSCSNES_H) 5 #define __PETSCSNES_H 6 #include "petscksp.h" 7 PETSC_EXTERN_CXX_BEGIN 8 9 /*S 10 SNES - Abstract PETSc object that manages all nonlinear solves 11 12 Level: beginner 13 14 Concepts: nonlinear solvers 15 16 .seealso: SNESCreate(), SNESSetType(), SNESType, TS, KSP, KSP, PC 17 S*/ 18 typedef struct _p_SNES* SNES; 19 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() 24 25 Level: beginner 26 27 .seealso: SNESSetType(), SNES 28 E*/ 29 #define SNESLS "ls" 30 #define SNESTR "tr" 31 #define SNESTEST "test" 32 #define SNESType const char* 33 34 /* Logging support */ 35 extern PetscCookie PETSCSNES_DLLEXPORT SNES_COOKIE; 36 extern PetscCookie PETSCSNES_DLLEXPORT MATSNESMFCTX_COOKIE; 37 38 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESInitializePackage(const char[]); 39 40 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESCreate(MPI_Comm,SNES*); 41 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDestroy(SNES); 42 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetType(SNES,SNESType); 43 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetMonitor(SNES,PetscErrorCode(*)(SNES,PetscInt,PetscReal,void*),void *,PetscErrorCode (*)(void*)); 44 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESClearMonitor(SNES); 45 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetConvergenceHistory(SNES,PetscReal[],PetscInt[],PetscInt,PetscTruth); 46 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetConvergenceHistory(SNES,PetscReal*[],PetscInt *[],PetscInt *); 47 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetUp(SNES); 48 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSolve(SNES,Vec,Vec); 49 50 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESAddOptionsChecker(PetscErrorCode (*)(SNES)); 51 52 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetUpdate(SNES, PetscErrorCode (*)(SNES, PetscInt)); 53 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultUpdate(SNES, PetscInt); 54 55 extern PetscFList SNESList; 56 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESRegisterDestroy(void); 57 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESRegisterAll(const char[]); 58 59 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESRegister(const char[],const char[],const char[],PetscErrorCode (*)(SNES)); 60 61 /*MC 62 SNESRegisterDynamic - Adds a method to the nonlinear solver package. 63 64 Synopsis: 65 PetscErrorCode SNESRegisterDynamic(char *name_solver,char *path,char *name_create,PetscErrorCode (*routine_create)(SNES)) 66 67 Not collective 68 69 Input Parameters: 70 + name_solver - name of a new user-defined solver 71 . path - path (either absolute or relative) the library containing this solver 72 . name_create - name of routine to create method context 73 - routine_create - routine to create method context 74 75 Notes: 76 SNESRegisterDynamic() may be called multiple times to add several user-defined solvers. 77 78 If dynamic libraries are used, then the fourth input argument (routine_create) 79 is ignored. 80 81 Environmental variables such as ${PETSC_ARCH}, ${PETSC_DIR}, ${PETSC_LIB_DIR}, 82 and others of the form ${any_environmental_variable} occuring in pathname will be 83 replaced with appropriate values. 84 85 Sample usage: 86 .vb 87 SNESRegisterDynamic("my_solver",/home/username/my_lib/lib/libg/solaris/mylib.a, 88 "MySolverCreate",MySolverCreate); 89 .ve 90 91 Then, your solver can be chosen with the procedural interface via 92 $ SNESSetType(snes,"my_solver") 93 or at runtime via the option 94 $ -snes_type my_solver 95 96 Level: advanced 97 98 Note: If your function is not being put into a shared library then use SNESRegister() instead 99 100 .keywords: SNES, nonlinear, register 101 102 .seealso: SNESRegisterAll(), SNESRegisterDestroy() 103 M*/ 104 #if defined(PETSC_USE_DYNAMIC_LIBRARIES) 105 #define SNESRegisterDynamic(a,b,c,d) SNESRegister(a,b,c,0) 106 #else 107 #define SNESRegisterDynamic(a,b,c,d) SNESRegister(a,b,c,d) 108 #endif 109 110 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetKSP(SNES,KSP*); 111 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetSolution(SNES,Vec*); 112 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetSolutionUpdate(SNES,Vec*); 113 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetFunction(SNES,Vec*,PetscErrorCode(**)(SNES,Vec,Vec,void*),void**); 114 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESView(SNES,PetscViewer); 115 116 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetOptionsPrefix(SNES,const char[]); 117 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESAppendOptionsPrefix(SNES,const char[]); 118 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetOptionsPrefix(SNES,const char*[]); 119 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetFromOptions(SNES); 120 121 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatCreateSNESMF(SNES,Vec,Mat*); 122 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatCreateMF(Vec,Mat*); 123 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetBase(Mat,Vec); 124 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 125 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunction(Mat,Vec,PetscErrorCode(*)(SNES,Vec,Vec,void*),void*); 126 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunctioni(Mat,PetscErrorCode (*)(PetscInt,Vec,PetscScalar*,void*)); 127 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunctioniBase(Mat,PetscErrorCode (*)(Vec,void*)); 128 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFAddNullSpace(Mat,MatNullSpace); 129 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetHHistory(Mat,PetscScalar[],PetscInt); 130 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFResetHHistory(Mat); 131 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunctionError(Mat,PetscReal); 132 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetPeriod(Mat,PetscInt); 133 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFGetH(Mat,PetscScalar *); 134 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFKSPMonitor(KSP,PetscInt,PetscReal,void *); 135 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFromOptions(Mat); 136 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFCheckPositivity(Vec,Vec,PetscScalar*,void*); 137 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetCheckh(Mat,PetscErrorCode (*)(Vec,Vec,PetscScalar*,void*),void*); 138 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFDSSetUmin(Mat,PetscReal); 139 140 141 typedef struct _p_MatSNESMFCtx* MatSNESMFCtx; 142 143 #define MATSNESMF_DS "ds" 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)); 148 149 /*MC 150 MatSNESMFRegisterDynamic - Adds a method to the MatSNESMF registry. 151 152 Synopsis: 153 PetscErrorCode MatSNESMFRegisterDynamic(char *name_solver,char *path,char *name_create,PetscErrorCode (*routine_create)(MatSNESMF)) 154 155 Not Collective 156 157 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 162 163 Level: developer 164 165 Notes: 166 MatSNESMFRegisterDynamic) may be called multiple times to add several user-defined solvers. 167 168 If dynamic libraries are used, then the fourth input argument (routine_create) 169 is ignored. 170 171 Sample usage: 172 .vb 173 MatSNESMFRegisterDynamic"my_h",/home/username/my_lib/lib/libO/solaris/mylib.a, 174 "MyHCreate",MyHCreate); 175 .ve 176 177 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 181 182 .keywords: MatSNESMF, register 183 184 .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 191 192 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 MatSNESMFWPSetComputeNormU(Mat,PetscTruth); 196 197 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatDAADSetSNES(Mat,SNES); 198 199 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetType(SNES,SNESType*); 200 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultMonitor(SNES,PetscInt,PetscReal,void *); 201 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESRatioMonitor(SNES,PetscInt,PetscReal,void *); 202 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetRatioMonitor(SNES,PetscViewer); 203 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESVecViewMonitor(SNES,PetscInt,PetscReal,void *); 204 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESVecViewResidualMonitor(SNES,PetscInt,PetscReal,void *); 205 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESVecViewUpdateMonitor(SNES,PetscInt,PetscReal,void *); 206 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultSMonitor(SNES,PetscInt,PetscReal,void *); 207 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetTolerances(SNES,PetscReal,PetscReal,PetscReal,PetscInt,PetscInt); 208 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetTolerances(SNES,PetscReal*,PetscReal*,PetscReal*,PetscInt*,PetscInt*); 209 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetTrustRegionTolerance(SNES,PetscReal); 210 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetIterationNumber(SNES,PetscInt*); 211 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetFunctionNorm(SNES,PetscScalar*); 212 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetNumberUnsuccessfulSteps(SNES,PetscInt*); 213 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetMaximumUnsuccessfulSteps(SNES,PetscInt); 214 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetMaximumUnsuccessfulSteps(SNES,PetscInt*); 215 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetNumberLinearIterations(SNES,PetscInt*); 216 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNES_KSP_SetParametersEW(SNES,PetscInt,PetscReal,PetscReal,PetscReal,PetscReal,PetscReal,PetscReal); 217 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNES_KSP_SetConvergenceTestEW(SNES); 218 219 /* 220 Reuse the default KSP monitor routines for SNES 221 */ 222 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLGMonitorCreate(const char[],const char[],int,int,int,int,PetscDrawLG*); 223 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLGMonitor(SNES,PetscInt,PetscReal,void*); 224 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLGMonitorDestroy(PetscDrawLG); 225 226 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetApplicationContext(SNES,void *); 227 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetApplicationContext(SNES,void **); 228 229 /*E 230 SNESConvergedReason - reason a SNES method was said to 231 have converged or diverged 232 233 Level: beginner 234 235 Notes: this must match finclude/petscsnes.h 236 237 Developer note: The string versions of these are in 238 src/snes/interface/snes.c called convergedreasons. 239 If these enums are changed you much change those. 240 241 .seealso: SNESSolve(), SNESGetConvergedReason(), KSPConvergedReason, SNESSetConvergenceTest() 242 E*/ 243 typedef enum {/* converged */ 244 SNES_CONVERGED_FNORM_ABS = 2, /* F < F_minabs */ 245 SNES_CONVERGED_FNORM_RELATIVE = 3, /* F < F_mintol*F_initial */ 246 SNES_CONVERGED_PNORM_RELATIVE = 4, /* step size small */ 247 SNES_CONVERGED_TR_DELTA = 7, 248 /* diverged */ 249 SNES_DIVERGED_FUNCTION_DOMAIN = -1, 250 SNES_DIVERGED_FUNCTION_COUNT = -2, 251 SNES_DIVERGED_FNORM_NAN = -4, 252 SNES_DIVERGED_MAX_IT = -5, 253 SNES_DIVERGED_LS_FAILURE = -6, 254 SNES_DIVERGED_LOCAL_MIN = -8, /* || J^T b || is small, implies converged to local minimum of F() */ 255 SNES_CONVERGED_ITERATING = 0} SNESConvergedReason; 256 extern const char **SNESConvergedReasons; 257 258 /*MC 259 SNES_CONVERGED_FNORM_ABS - 2-norm(F) <= abstol 260 261 Level: beginner 262 263 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 264 265 M*/ 266 267 /*MC 268 SNES_CONVERGED_FNORM_RELATIVE - 2-norm(F) <= rtol*2-norm(F(x_0)) where x_0 is the initial guess 269 270 Level: beginner 271 272 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 273 274 M*/ 275 276 /*MC 277 SNES_CONVERGED_PNORM_RELATIVE - The 2-norm of the last step <= xtol * 2-norm(x) where x is the current 278 solution and xtol is the 4th argument to SNESSetTolerances() 279 280 Level: beginner 281 282 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 283 284 M*/ 285 286 /*MC 287 SNES_DIVERGED_FUNCTION_COUNT - The user provided function has been called more times then the final 288 argument to SNESSetTolerances() 289 290 Level: beginner 291 292 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 293 294 M*/ 295 296 /*MC 297 SNES_DIVERGED_FNORM_NAN - the 2-norm of the current function evaluation is not-a-number (NaN), this 298 is usually caused by a division of 0 by 0. 299 300 Level: beginner 301 302 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 303 304 M*/ 305 306 /*MC 307 SNES_DIVERGED_MAX_IT - SNESSolve() has reached the maximum number of iterations requested 308 309 Level: beginner 310 311 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 312 313 M*/ 314 315 /*MC 316 SNES_DIVERGED_LS_FAILURE - The line search has failed. This only occurs for a SNESType of SNESLS 317 318 Level: beginner 319 320 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 321 322 M*/ 323 324 /*MC 325 SNES_DIVERGED_LOCAL_MIN - the algorithm seems to have stagnated at a local minimum that is not zero 326 327 Level: beginner 328 329 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 330 331 M*/ 332 333 /*MC 334 SNES_CONERGED_ITERATING - this only occurs if SNESGetConvergedReason() is called during the SNESSolve() 335 336 Level: beginner 337 338 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 339 340 M*/ 341 342 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetConvergenceTest(SNES,PetscErrorCode (*)(SNES,PetscReal,PetscReal,PetscReal,SNESConvergedReason*,void*),void*); 343 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESConverged_LS(SNES,PetscReal,PetscReal,PetscReal,SNESConvergedReason*,void*); 344 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESConverged_TR(SNES,PetscReal,PetscReal,PetscReal,SNESConvergedReason*,void*); 345 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetConvergedReason(SNES,SNESConvergedReason*); 346 347 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAFormFunction(SNES,Vec,Vec,void*); 348 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAComputeJacobianWithAdic(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 349 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAComputeJacobianWithAdifor(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 350 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 351 352 /* --------- Solving systems of nonlinear equations --------------- */ 353 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetFunction(SNES,Vec,PetscErrorCode(*)(SNES,Vec,Vec,void*),void *); 354 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESComputeFunction(SNES,Vec,Vec); 355 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetJacobian(SNES,Mat,Mat,PetscErrorCode(*)(SNES,Vec,Mat*,Mat*,MatStructure*,void*),void *); 356 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetJacobian(SNES,Mat*,Mat*,PetscErrorCode(**)(SNES,Vec,Mat*,Mat*,MatStructure*,void*),void **); 357 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 358 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultComputeJacobianColor(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 359 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetRhs(SNES,Vec); 360 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetRhs(SNES,Vec*); 361 362 /* --------- Routines specifically for line search methods --------------- */ 363 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSet(SNES,PetscErrorCode(*)(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*),void*); 364 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchNo(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*); 365 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchNoNorms(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*); 366 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchCubic(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*); 367 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchQuadratic(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*); 368 369 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSetPostCheck(SNES,PetscErrorCode(*)(SNES,Vec,Vec,Vec,void*,PetscTruth*,PetscTruth*),void*); 370 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSetPreCheck(SNES,PetscErrorCode(*)(SNES,Vec,Vec,void*,PetscTruth*),void*); 371 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSetParams(SNES,PetscReal,PetscReal,PetscReal); 372 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchGetParams(SNES,PetscReal*,PetscReal*,PetscReal*); 373 374 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESTestLocalMin(SNES); 375 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetSolution(SNES,Vec); 376 377 /* Should this routine be private? */ 378 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*); 379 380 PETSC_EXTERN_CXX_END 381 #endif 382