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 SNESType const char* 30 #define SNESLS "ls" 31 #define SNESTR "tr" 32 #define SNESTEST "test" 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 SNESMonitorSet(SNES,PetscErrorCode(*)(SNES,PetscInt,PetscReal,void*),void *,PetscErrorCode (*)(void*)); 44 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESMonitorCancel(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 SNESSetKSP(SNES,KSP); 112 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetSolution(SNES,Vec*); 113 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetSolutionUpdate(SNES,Vec*); 114 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetFunction(SNES,Vec*,PetscErrorCode(**)(SNES,Vec,Vec,void*),void**); 115 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESView(SNES,PetscViewer); 116 117 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetOptionsPrefix(SNES,const char[]); 118 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESAppendOptionsPrefix(SNES,const char[]); 119 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetOptionsPrefix(SNES,const char*[]); 120 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetFromOptions(SNES); 121 122 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatCreateSNESMF(SNES,Vec,Mat*); 123 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatCreateMF(Vec,Mat*); 124 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetBase(Mat,Vec); 125 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 126 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunction(Mat,Vec,PetscErrorCode(*)(SNES,Vec,Vec,void*),void*); 127 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunctioni(Mat,PetscErrorCode (*)(PetscInt,Vec,PetscScalar*,void*)); 128 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunctioniBase(Mat,PetscErrorCode (*)(Vec,void*)); 129 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFAddNullSpace(Mat,MatNullSpace); 130 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetHHistory(Mat,PetscScalar[],PetscInt); 131 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFResetHHistory(Mat); 132 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFunctionError(Mat,PetscReal); 133 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetPeriod(Mat,PetscInt); 134 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFGetH(Mat,PetscScalar *); 135 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFKSPMonitor(KSP,PetscInt,PetscReal,void *); 136 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFromOptions(Mat); 137 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFCheckPositivity(Vec,Vec,PetscScalar*,void*); 138 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetCheckh(Mat,PetscErrorCode (*)(Vec,Vec,PetscScalar*,void*),void*); 139 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFDSSetUmin(Mat,PetscReal); 140 141 142 typedef struct _p_MatSNESMFCtx* MatSNESMFCtx; 143 144 /*E 145 MatSNESMFType - algorithm used to compute the h used in computing matrix-vector products via differencing of the function 146 147 Level: beginner 148 149 .seealso: MatSNESMFSetType(), MatSNESMFRegister() 150 E*/ 151 #define MatSNESMFType const char* 152 #define MATSNESMF_DS "ds" 153 #define MATSNESMF_WP "wp" 154 155 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetType(Mat,MatSNESMFType); 156 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFRegister(const char[],const char[],const char[],PetscErrorCode (*)(MatSNESMFCtx)); 157 158 /*MC 159 MatSNESMFRegisterDynamic - Adds a method to the MatSNESMF registry. 160 161 Synopsis: 162 PetscErrorCode MatSNESMFRegisterDynamic(char *name_solver,char *path,char *name_create,PetscErrorCode (*routine_create)(MatSNESMF)) 163 164 Not Collective 165 166 Input Parameters: 167 + name_solver - name of a new user-defined compute-h module 168 . path - path (either absolute or relative) the library containing this solver 169 . name_create - name of routine to create method context 170 - routine_create - routine to create method context 171 172 Level: developer 173 174 Notes: 175 MatSNESMFRegisterDynamic() may be called multiple times to add several user-defined solvers. 176 177 If dynamic libraries are used, then the fourth input argument (routine_create) 178 is ignored. 179 180 Sample usage: 181 .vb 182 MatSNESMFRegisterDynamic("my_h",/home/username/my_lib/lib/libO/solaris/mylib.a, 183 "MyHCreate",MyHCreate); 184 .ve 185 186 Then, your solver can be chosen with the procedural interface via 187 $ MatSNESMFSetType(mfctx,"my_h") 188 or at runtime via the option 189 $ -snes_mf_type my_h 190 191 .keywords: MatSNESMF, register 192 193 .seealso: MatSNESMFRegisterAll(), MatSNESMFRegisterDestroy() 194 M*/ 195 #if defined(PETSC_USE_DYNAMIC_LIBRARIES) 196 #define MatSNESMFRegisterDynamic(a,b,c,d) MatSNESMFRegister(a,b,c,0) 197 #else 198 #define MatSNESMFRegisterDynamic(a,b,c,d) MatSNESMFRegister(a,b,c,d) 199 #endif 200 201 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFRegisterAll(const char[]); 202 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFRegisterDestroy(void); 203 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFDefaultSetUmin(Mat,PetscReal); 204 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFWPSetComputeNormU(Mat,PetscTruth); 205 206 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT MatDAADSetSNES(Mat,SNES); 207 208 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetType(SNES,SNESType*); 209 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESMonitorDefault(SNES,PetscInt,PetscReal,void *); 210 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESMonitorRatio(SNES,PetscInt,PetscReal,void *); 211 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESMonitorSetRatio(SNES,PetscViewerASCIIMonitor); 212 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESMonitorSolution(SNES,PetscInt,PetscReal,void *); 213 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESMonitorResidual(SNES,PetscInt,PetscReal,void *); 214 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESMonitorSolutionUpdate(SNES,PetscInt,PetscReal,void *); 215 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESMonitorDefaultShort(SNES,PetscInt,PetscReal,void *); 216 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetTolerances(SNES,PetscReal,PetscReal,PetscReal,PetscInt,PetscInt); 217 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetTolerances(SNES,PetscReal*,PetscReal*,PetscReal*,PetscInt*,PetscInt*); 218 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetTrustRegionTolerance(SNES,PetscReal); 219 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetIterationNumber(SNES,PetscInt*); 220 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetFunctionNorm(SNES,PetscScalar*); 221 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetNumberUnsuccessfulSteps(SNES,PetscInt*); 222 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetMaximumUnsuccessfulSteps(SNES,PetscInt); 223 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetMaximumUnsuccessfulSteps(SNES,PetscInt*); 224 225 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetLinearSolveFailures(SNES,PetscInt*); 226 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetMaxLinearSolveFailures(SNES,PetscInt); 227 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetMaxLinearSolveFailures(SNES,PetscInt*); 228 229 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetNumberLinearIterations(SNES,PetscInt*); 230 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNES_KSP_SetParametersEW(SNES,PetscInt,PetscReal,PetscReal,PetscReal,PetscReal,PetscReal,PetscReal); 231 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNES_KSP_SetConvergenceTestEW(SNES); 232 233 /* 234 Reuse the default KSP monitor routines for SNES 235 */ 236 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESMonitorLGCreate(const char[],const char[],int,int,int,int,PetscDrawLG*); 237 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESMonitorLG(SNES,PetscInt,PetscReal,void*); 238 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESMonitorLGDestroy(PetscDrawLG); 239 240 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetApplicationContext(SNES,void *); 241 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetApplicationContext(SNES,void **); 242 243 /*E 244 SNESConvergedReason - reason a SNES method was said to 245 have converged or diverged 246 247 Level: beginner 248 249 Notes: this must match finclude/petscsnes.h 250 251 Developer note: The string versions of these are in 252 src/snes/interface/snes.c called convergedreasons. 253 If these enums are changed you much change those. 254 255 .seealso: SNESSolve(), SNESGetConvergedReason(), KSPConvergedReason, SNESSetConvergenceTest() 256 E*/ 257 typedef enum {/* converged */ 258 SNES_CONVERGED_FNORM_ABS = 2, /* F < F_minabs */ 259 SNES_CONVERGED_FNORM_RELATIVE = 3, /* F < F_mintol*F_initial */ 260 SNES_CONVERGED_PNORM_RELATIVE = 4, /* step size small */ 261 SNES_CONVERGED_TR_DELTA = 7, 262 /* diverged */ 263 SNES_DIVERGED_FUNCTION_DOMAIN = -1, 264 SNES_DIVERGED_FUNCTION_COUNT = -2, 265 SNES_DIVERGED_LINEAR_SOLVE = -3, 266 SNES_DIVERGED_FNORM_NAN = -4, 267 SNES_DIVERGED_MAX_IT = -5, 268 SNES_DIVERGED_LS_FAILURE = -6, 269 SNES_DIVERGED_LOCAL_MIN = -8, /* || J^T b || is small, implies converged to local minimum of F() */ 270 SNES_CONVERGED_ITERATING = 0} SNESConvergedReason; 271 extern const char **SNESConvergedReasons; 272 273 /*MC 274 SNES_CONVERGED_FNORM_ABS - 2-norm(F) <= abstol 275 276 Level: beginner 277 278 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 279 280 M*/ 281 282 /*MC 283 SNES_CONVERGED_FNORM_RELATIVE - 2-norm(F) <= rtol*2-norm(F(x_0)) where x_0 is the initial guess 284 285 Level: beginner 286 287 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 288 289 M*/ 290 291 /*MC 292 SNES_CONVERGED_PNORM_RELATIVE - The 2-norm of the last step <= xtol * 2-norm(x) where x is the current 293 solution and xtol is the 4th argument to SNESSetTolerances() 294 295 Level: beginner 296 297 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 298 299 M*/ 300 301 /*MC 302 SNES_DIVERGED_FUNCTION_COUNT - The user provided function has been called more times then the final 303 argument to SNESSetTolerances() 304 305 Level: beginner 306 307 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 308 309 M*/ 310 311 /*MC 312 SNES_DIVERGED_FNORM_NAN - the 2-norm of the current function evaluation is not-a-number (NaN), this 313 is usually caused by a division of 0 by 0. 314 315 Level: beginner 316 317 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 318 319 M*/ 320 321 /*MC 322 SNES_DIVERGED_MAX_IT - SNESSolve() has reached the maximum number of iterations requested 323 324 Level: beginner 325 326 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 327 328 M*/ 329 330 /*MC 331 SNES_DIVERGED_LS_FAILURE - The line search has failed. This only occurs for a SNESType of SNESLS 332 333 Level: beginner 334 335 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 336 337 M*/ 338 339 /*MC 340 SNES_DIVERGED_LOCAL_MIN - the algorithm seems to have stagnated at a local minimum that is not zero 341 342 Level: beginner 343 344 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 345 346 M*/ 347 348 /*MC 349 SNES_CONERGED_ITERATING - this only occurs if SNESGetConvergedReason() is called during the SNESSolve() 350 351 Level: beginner 352 353 .seealso: SNESSolve(), SNESGetConvergedReason(), SNESConvergedReason, SNESSetTolerances() 354 355 M*/ 356 357 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetConvergenceTest(SNES,PetscErrorCode (*)(SNES,PetscInt,PetscReal,PetscReal,PetscReal,SNESConvergedReason*,void*),void*); 358 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESConverged_LS(SNES,PetscInt,PetscReal,PetscReal,PetscReal,SNESConvergedReason*,void*); 359 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESConverged_TR(SNES,PetscInt,PetscReal,PetscReal,PetscReal,SNESConvergedReason*,void*); 360 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetConvergedReason(SNES,SNESConvergedReason*); 361 362 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAFormFunction(SNES,Vec,Vec,void*); 363 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAComputeJacobianWithAdic(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 364 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAComputeJacobianWithAdifor(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 365 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDAComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 366 367 /* --------- Solving systems of nonlinear equations --------------- */ 368 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetFunction(SNES,Vec,PetscErrorCode(*)(SNES,Vec,Vec,void*),void *); 369 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESComputeFunction(SNES,Vec,Vec); 370 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetJacobian(SNES,Mat,Mat,PetscErrorCode(*)(SNES,Vec,Mat*,Mat*,MatStructure*,void*),void *); 371 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetJacobian(SNES,Mat*,Mat*,PetscErrorCode(**)(SNES,Vec,Mat*,Mat*,MatStructure*,void*),void **); 372 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 373 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESDefaultComputeJacobianColor(SNES,Vec,Mat*,Mat*,MatStructure*,void*); 374 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetRhs(SNES,Vec); 375 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESGetRhs(SNES,Vec*); 376 377 /* --------- Routines specifically for line search methods --------------- */ 378 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSet(SNES,PetscErrorCode(*)(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*),void*); 379 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchNo(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*); 380 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchNoNorms(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*); 381 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchCubic(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*); 382 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchQuadratic(SNES,void*,Vec,Vec,Vec,Vec,Vec,PetscReal,PetscReal*,PetscReal*,PetscTruth*); 383 384 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSetPostCheck(SNES,PetscErrorCode(*)(SNES,Vec,Vec,Vec,void*,PetscTruth*,PetscTruth*),void*); 385 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSetPreCheck(SNES,PetscErrorCode(*)(SNES,Vec,Vec,void*,PetscTruth*),void*); 386 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchSetParams(SNES,PetscReal,PetscReal,PetscReal); 387 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESLineSearchGetParams(SNES,PetscReal*,PetscReal*,PetscReal*); 388 389 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESTestLocalMin(SNES); 390 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESSetSolution(SNES,Vec); 391 392 /* Should this routine be private? */ 393 EXTERN PetscErrorCode PETSCSNES_DLLEXPORT SNESComputeJacobian(SNES,Vec,Mat*,Mat*,MatStructure*); 394 395 PETSC_EXTERN_CXX_END 396 #endif 397