Actual source code: slepcnep.h
slepc-3.10.1 2018-10-23
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      1: /*
      2:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      3:    SLEPc - Scalable Library for Eigenvalue Problem Computations
      4:    Copyright (c) 2002-2018, Universitat Politecnica de Valencia, Spain

      6:    This file is part of SLEPc.
      7:    SLEPc is distributed under a 2-clause BSD license (see LICENSE).
      8:    - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      9: */
     10: /*
     11:    User interface for SLEPc's nonlinear eigenvalue solvers
     12: */

     16:  #include <slepceps.h>
     17:  #include <slepcpep.h>
     18:  #include <slepcfn.h>

     20: PETSC_EXTERN PetscErrorCode NEPInitializePackage(void);

     22: /*S
     23:      NEP - Abstract SLEPc object that manages all solvers for
     24:      nonlinear eigenvalue problems.

     26:    Level: beginner

     28: .seealso:  NEPCreate()
     29: S*/
     30: typedef struct _p_NEP* NEP;

     32: /*J
     33:     NEPType - String with the name of a nonlinear eigensolver

     35:    Level: beginner

     37: .seealso: NEPSetType(), NEP
     38: J*/
     39: typedef const char* NEPType;
     40: #define NEPRII       "rii"
     41: #define NEPSLP       "slp"
     42: #define NEPNARNOLDI  "narnoldi"
     43: #define NEPCISS      "ciss"
     44: #define NEPINTERPOL  "interpol"
     45: #define NEPNLEIGS    "nleigs"

     47: /* Logging support */
     48: PETSC_EXTERN PetscClassId NEP_CLASSID;

     50: /*E
     51:     NEPProblemType - Determines the type of the nonlinear eigenproblem

     53:     Level: intermediate

     55: .seealso: NEPSetProblemType(), NEPGetProblemType()
     56: E*/
     57: typedef enum { NEP_GENERAL=1,
     58:                NEP_RATIONAL     /* NEP defined in split form with all f_i rational */
     59:              } NEPProblemType;

     61: /*E
     62:     NEPWhich - Determines which part of the spectrum is requested

     64:     Level: intermediate

     66: .seealso: NEPSetWhichEigenpairs(), NEPGetWhichEigenpairs()
     67: E*/
     68: typedef enum { NEP_LARGEST_MAGNITUDE=1,
     69:                NEP_SMALLEST_MAGNITUDE,
     70:                NEP_LARGEST_REAL,
     71:                NEP_SMALLEST_REAL,
     72:                NEP_LARGEST_IMAGINARY,
     73:                NEP_SMALLEST_IMAGINARY,
     74:                NEP_TARGET_MAGNITUDE,
     75:                NEP_TARGET_REAL,
     76:                NEP_TARGET_IMAGINARY,
     77:                NEP_ALL,
     78:                NEP_WHICH_USER } NEPWhich;

     80: /*E
     81:     NEPErrorType - The error type used to assess accuracy of computed solutions

     83:     Level: intermediate

     85: .seealso: NEPComputeError()
     86: E*/
     87: typedef enum { NEP_ERROR_ABSOLUTE,
     88:                NEP_ERROR_RELATIVE,
     89:                NEP_ERROR_BACKWARD } NEPErrorType;
     90: PETSC_EXTERN const char *NEPErrorTypes[];

     92: /*E
     93:     NEPRefine - The refinement type

     95:     Level: intermediate

     97: .seealso: NEPSetRefine()
     98: E*/
     99: typedef enum { NEP_REFINE_NONE,
    100:                NEP_REFINE_SIMPLE,
    101:                NEP_REFINE_MULTIPLE } NEPRefine;
    102: PETSC_EXTERN const char *NEPRefineTypes[];

    104: /*E
    105:     NEPRefineScheme - The scheme used for solving linear systems during iterative refinement

    107:     Level: intermediate

    109: .seealso: NEPSetRefine()
    110: E*/
    111: typedef enum { NEP_REFINE_SCHEME_SCHUR=1,
    112:                NEP_REFINE_SCHEME_MBE,
    113:                NEP_REFINE_SCHEME_EXPLICIT } NEPRefineScheme;
    114: PETSC_EXTERN const char *NEPRefineSchemes[];

    116: /*E
    117:     NEPConv - Determines the convergence test

    119:     Level: intermediate

    121: .seealso: NEPSetConvergenceTest(), NEPSetConvergenceTestFunction()
    122: E*/
    123: typedef enum { NEP_CONV_ABS,
    124:                NEP_CONV_REL,
    125:                NEP_CONV_NORM,
    126:                NEP_CONV_USER } NEPConv;

    128: /*E
    129:     NEPStop - Determines the stopping test

    131:     Level: advanced

    133: .seealso: NEPSetStoppingTest(), NEPSetStoppingTestFunction()
    134: E*/
    135: typedef enum { NEP_STOP_BASIC,
    136:                NEP_STOP_USER } NEPStop;

    138: /*E
    139:     NEPConvergedReason - Reason a nonlinear eigensolver was said to
    140:          have converged or diverged

    142:     Level: intermediate

    144: .seealso: NEPSolve(), NEPGetConvergedReason(), NEPSetTolerances()
    145: E*/
    146: typedef enum {/* converged */
    147:               NEP_CONVERGED_TOL                =  1,
    148:               NEP_CONVERGED_USER               =  2,
    149:               /* diverged */
    150:               NEP_DIVERGED_ITS                 = -1,
    151:               NEP_DIVERGED_BREAKDOWN           = -2,
    152:                     /* unused                  = -3 */
    153:               NEP_DIVERGED_LINEAR_SOLVE        = -4,
    154:               NEP_DIVERGED_SUBSPACE_EXHAUSTED  = -5,
    155:               NEP_CONVERGED_ITERATING          =  0} NEPConvergedReason;
    156: PETSC_EXTERN const char *const*NEPConvergedReasons;

    158: PETSC_EXTERN PetscErrorCode NEPCreate(MPI_Comm,NEP*);
    159: PETSC_EXTERN PetscErrorCode NEPDestroy(NEP*);
    160: PETSC_EXTERN PetscErrorCode NEPReset(NEP);
    161: PETSC_EXTERN PetscErrorCode NEPSetType(NEP,NEPType);
    162: PETSC_EXTERN PetscErrorCode NEPGetType(NEP,NEPType*);
    163: PETSC_EXTERN PetscErrorCode NEPSetProblemType(NEP,NEPProblemType);
    164: PETSC_EXTERN PetscErrorCode NEPGetProblemType(NEP,NEPProblemType*);
    165: PETSC_EXTERN PetscErrorCode NEPSetTarget(NEP,PetscScalar);
    166: PETSC_EXTERN PetscErrorCode NEPGetTarget(NEP,PetscScalar*);
    167: PETSC_EXTERN PetscErrorCode NEPSetFromOptions(NEP);
    168: PETSC_EXTERN PetscErrorCode NEPSetUp(NEP);
    169: PETSC_EXTERN PetscErrorCode NEPSolve(NEP);
    170: PETSC_EXTERN PetscErrorCode NEPView(NEP,PetscViewer);
    171: PETSC_STATIC_INLINE PetscErrorCode NEPViewFromOptions(NEP nep,PetscObject obj,const char name[]) {return PetscObjectViewFromOptions((PetscObject)nep,obj,name);}
    172: PETSC_EXTERN PetscErrorCode NEPErrorView(NEP,NEPErrorType,PetscViewer);
    173: PETSC_EXTERN PetscErrorCode NEPErrorViewFromOptions(NEP);
    174: PETSC_EXTERN PetscErrorCode NEPReasonView(NEP,PetscViewer);
    175: PETSC_EXTERN PetscErrorCode NEPReasonViewFromOptions(NEP);
    176: PETSC_EXTERN PetscErrorCode NEPValuesView(NEP,PetscViewer);
    177: PETSC_EXTERN PetscErrorCode NEPValuesViewFromOptions(NEP);
    178: PETSC_EXTERN PetscErrorCode NEPVectorsView(NEP,PetscViewer);
    179: PETSC_EXTERN PetscErrorCode NEPVectorsViewFromOptions(NEP);

    181: PETSC_EXTERN PetscErrorCode NEPSetFunction(NEP,Mat,Mat,PetscErrorCode (*)(NEP,PetscScalar,Mat,Mat,void*),void*);
    182: PETSC_EXTERN PetscErrorCode NEPGetFunction(NEP,Mat*,Mat*,PetscErrorCode (**)(NEP,PetscScalar,Mat,Mat,void*),void**);
    183: PETSC_EXTERN PetscErrorCode NEPSetJacobian(NEP,Mat,PetscErrorCode (*)(NEP,PetscScalar,Mat,void*),void*);
    184: PETSC_EXTERN PetscErrorCode NEPGetJacobian(NEP,Mat*,PetscErrorCode (**)(NEP,PetscScalar,Mat,void*),void**);
    185: PETSC_EXTERN PetscErrorCode NEPSetDerivatives(NEP,Mat,PetscErrorCode (*)(NEP,PetscScalar,PetscInt,Mat,void*),void*);
    186: PETSC_EXTERN PetscErrorCode NEPGetDerivatives(NEP,Mat*,PetscErrorCode (**)(NEP,PetscScalar,PetscInt,Mat,void*),void**);
    187: PETSC_EXTERN PetscErrorCode NEPSetSplitOperator(NEP,PetscInt,Mat*,FN*,MatStructure);
    188: PETSC_EXTERN PetscErrorCode NEPGetSplitOperatorTerm(NEP,PetscInt,Mat*,FN*);
    189: PETSC_EXTERN PetscErrorCode NEPGetSplitOperatorInfo(NEP,PetscInt*,MatStructure*);

    191: PETSC_EXTERN PetscErrorCode NEPSetBV(NEP,BV);
    192: PETSC_EXTERN PetscErrorCode NEPGetBV(NEP,BV*);
    193: PETSC_EXTERN PetscErrorCode NEPSetRG(NEP,RG);
    194: PETSC_EXTERN PetscErrorCode NEPGetRG(NEP,RG*);
    195: PETSC_EXTERN PetscErrorCode NEPSetDS(NEP,DS);
    196: PETSC_EXTERN PetscErrorCode NEPGetDS(NEP,DS*);
    197: PETSC_EXTERN PetscErrorCode NEPRefineGetKSP(NEP,KSP*);
    198: PETSC_EXTERN PetscErrorCode NEPSetTolerances(NEP,PetscReal,PetscInt);
    199: PETSC_EXTERN PetscErrorCode NEPGetTolerances(NEP,PetscReal*,PetscInt*);
    200: PETSC_EXTERN PetscErrorCode NEPSetConvergenceTestFunction(NEP,PetscErrorCode (*)(NEP,PetscScalar,PetscScalar,PetscReal,PetscReal*,void*),void*,PetscErrorCode (*)(void*));
    201: PETSC_EXTERN PetscErrorCode NEPSetConvergenceTest(NEP,NEPConv);
    202: PETSC_EXTERN PetscErrorCode NEPGetConvergenceTest(NEP,NEPConv*);
    203: PETSC_EXTERN PetscErrorCode NEPConvergedAbsolute(NEP,PetscScalar,PetscScalar,PetscReal,PetscReal*,void*);
    204: PETSC_EXTERN PetscErrorCode NEPConvergedRelative(NEP,PetscScalar,PetscScalar,PetscReal,PetscReal*,void*);
    205: PETSC_EXTERN PetscErrorCode NEPConvergedNorm(NEP,PetscScalar,PetscScalar,PetscReal,PetscReal*,void*);
    206: PETSC_EXTERN PetscErrorCode NEPSetStoppingTestFunction(NEP,PetscErrorCode (*)(NEP,PetscInt,PetscInt,PetscInt,PetscInt,NEPConvergedReason*,void*),void*,PetscErrorCode (*)(void*));
    207: PETSC_EXTERN PetscErrorCode NEPSetStoppingTest(NEP,NEPStop);
    208: PETSC_EXTERN PetscErrorCode NEPGetStoppingTest(NEP,NEPStop*);
    209: PETSC_EXTERN PetscErrorCode NEPStoppingBasic(NEP,PetscInt,PetscInt,PetscInt,PetscInt,NEPConvergedReason*,void*);
    210: PETSC_EXTERN PetscErrorCode NEPSetDimensions(NEP,PetscInt,PetscInt,PetscInt);
    211: PETSC_EXTERN PetscErrorCode NEPGetDimensions(NEP,PetscInt*,PetscInt*,PetscInt*);
    212: PETSC_EXTERN PetscErrorCode NEPSetRefine(NEP,NEPRefine,PetscInt,PetscReal,PetscInt,NEPRefineScheme);
    213: PETSC_EXTERN PetscErrorCode NEPGetRefine(NEP,NEPRefine*,PetscInt*,PetscReal*,PetscInt*,NEPRefineScheme*);

    215: PETSC_EXTERN PetscErrorCode NEPGetConverged(NEP,PetscInt*);
    216: PETSC_EXTERN PetscErrorCode NEPGetEigenpair(NEP,PetscInt,PetscScalar*,PetscScalar*,Vec,Vec);

    218: PETSC_EXTERN PetscErrorCode NEPComputeError(NEP,PetscInt,NEPErrorType,PetscReal*);
    219: PETSC_DEPRECATED("Use NEPComputeError()") PETSC_STATIC_INLINE PetscErrorCode NEPComputeRelativeError(NEP nep,PetscInt i,PetscReal *r) {return NEPComputeError(nep,i,NEP_ERROR_RELATIVE,r);}
    220: PETSC_DEPRECATED("Use NEPComputeError() with NEP_ERROR_ABSOLUTE") PETSC_STATIC_INLINE PetscErrorCode NEPComputeResidualNorm(NEP nep,PetscInt i,PetscReal *r) {return NEPComputeError(nep,i,NEP_ERROR_ABSOLUTE,r);}
    221: PETSC_EXTERN PetscErrorCode NEPGetErrorEstimate(NEP,PetscInt,PetscReal*);

    223: PETSC_EXTERN PetscErrorCode NEPComputeFunction(NEP,PetscScalar,Mat,Mat);
    224: PETSC_EXTERN PetscErrorCode NEPComputeJacobian(NEP,PetscScalar,Mat);
    225: PETSC_EXTERN PetscErrorCode NEPApplyFunction(NEP,PetscScalar,Vec,Vec,Vec,Mat,Mat);
    226: PETSC_EXTERN PetscErrorCode NEPApplyJacobian(NEP,PetscScalar,Vec,Vec,Vec,Mat);
    227: PETSC_EXTERN PetscErrorCode NEPProjectOperator(NEP,PetscInt,PetscInt);

    229: PETSC_EXTERN PetscErrorCode NEPMonitor(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt);
    230: PETSC_EXTERN PetscErrorCode NEPMonitorSet(NEP,PetscErrorCode (*)(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,void*),void*,PetscErrorCode (*)(void**));
    231: PETSC_EXTERN PetscErrorCode NEPMonitorSetFromOptions(NEP,const char*,const char*,const char*,PetscErrorCode (*)(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,PetscViewerAndFormat*),PetscBool);
    232: PETSC_EXTERN PetscErrorCode NEPConvMonitorSetFromOptions(NEP,const char*,const char*,const char*,PetscErrorCode (*)(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,SlepcConvMonitor));
    233: PETSC_EXTERN PetscErrorCode NEPMonitorCancel(NEP);
    234: PETSC_EXTERN PetscErrorCode NEPGetMonitorContext(NEP,void **);
    235: PETSC_EXTERN PetscErrorCode NEPGetIterationNumber(NEP,PetscInt*);

    237: PETSC_EXTERN PetscErrorCode NEPSetInitialSpace(NEP,PetscInt,Vec*);
    238: PETSC_EXTERN PetscErrorCode NEPSetWhichEigenpairs(NEP,NEPWhich);
    239: PETSC_EXTERN PetscErrorCode NEPGetWhichEigenpairs(NEP,NEPWhich*);
    240: PETSC_EXTERN PetscErrorCode NEPSetEigenvalueComparison(NEP,PetscErrorCode (*func)(PetscScalar,PetscScalar,PetscScalar,PetscScalar,PetscInt*,void*),void*);

    242: PETSC_EXTERN PetscErrorCode NEPMonitorAll(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,PetscViewerAndFormat*);
    243: PETSC_EXTERN PetscErrorCode NEPMonitorFirst(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,PetscViewerAndFormat*);
    244: PETSC_EXTERN PetscErrorCode NEPMonitorConverged(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,SlepcConvMonitor);
    245: PETSC_EXTERN PetscErrorCode NEPMonitorLGCreate(MPI_Comm,const char[],const char[],int,int,int,int,PetscDrawLG*);
    246: PETSC_EXTERN PetscErrorCode NEPMonitorLG(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,void*);
    247: PETSC_EXTERN PetscErrorCode NEPMonitorLGAll(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,void*);

    249: PETSC_EXTERN PetscErrorCode NEPSetTrackAll(NEP,PetscBool);
    250: PETSC_EXTERN PetscErrorCode NEPGetTrackAll(NEP,PetscBool*);

    252: PETSC_EXTERN PetscErrorCode NEPSetOptionsPrefix(NEP,const char*);
    253: PETSC_EXTERN PetscErrorCode NEPAppendOptionsPrefix(NEP,const char*);
    254: PETSC_EXTERN PetscErrorCode NEPGetOptionsPrefix(NEP,const char*[]);

    256: PETSC_EXTERN PetscErrorCode NEPGetConvergedReason(NEP,NEPConvergedReason *);

    258: PETSC_EXTERN PetscFunctionList NEPList;
    259: PETSC_EXTERN PetscErrorCode NEPRegister(const char[],PetscErrorCode(*)(NEP));

    261: PETSC_EXTERN PetscErrorCode NEPSetWorkVecs(NEP,PetscInt);
    262: PETSC_EXTERN PetscErrorCode NEPAllocateSolution(NEP,PetscInt);

    264: /* --------- options specific to particular eigensolvers -------- */

    266: PETSC_EXTERN PetscErrorCode NEPRIISetMaximumIterations(NEP,PetscInt);
    267: PETSC_EXTERN PetscErrorCode NEPRIIGetMaximumIterations(NEP,PetscInt*);
    268: PETSC_EXTERN PetscErrorCode NEPRIISetLagPreconditioner(NEP,PetscInt);
    269: PETSC_EXTERN PetscErrorCode NEPRIIGetLagPreconditioner(NEP,PetscInt*);
    270: PETSC_EXTERN PetscErrorCode NEPRIISetConstCorrectionTol(NEP,PetscBool);
    271: PETSC_EXTERN PetscErrorCode NEPRIIGetConstCorrectionTol(NEP,PetscBool*);
    272: PETSC_EXTERN PetscErrorCode NEPRIISetKSP(NEP,KSP);
    273: PETSC_EXTERN PetscErrorCode NEPRIIGetKSP(NEP,KSP*);

    275: PETSC_EXTERN PetscErrorCode NEPSLPSetEPS(NEP,EPS);
    276: PETSC_EXTERN PetscErrorCode NEPSLPGetEPS(NEP,EPS*);
    277: PETSC_EXTERN PetscErrorCode NEPSLPSetKSP(NEP,KSP);
    278: PETSC_EXTERN PetscErrorCode NEPSLPGetKSP(NEP,KSP*);

    280: PETSC_EXTERN PetscErrorCode NEPNArnoldiSetKSP(NEP,KSP);
    281: PETSC_EXTERN PetscErrorCode NEPNArnoldiGetKSP(NEP,KSP*);
    282: PETSC_EXTERN PetscErrorCode NEPNArnoldiSetLagPreconditioner(NEP,PetscInt);
    283: PETSC_EXTERN PetscErrorCode NEPNArnoldiGetLagPreconditioner(NEP,PetscInt*);

    285: #if defined(PETSC_USE_COMPLEX)
    286: PETSC_EXTERN PetscErrorCode NEPCISSSetSizes(NEP,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscBool);
    287: PETSC_EXTERN PetscErrorCode NEPCISSGetSizes(NEP,PetscInt*,PetscInt*,PetscInt*,PetscInt*,PetscInt*,PetscBool*);
    288: PETSC_EXTERN PetscErrorCode NEPCISSSetThreshold(NEP,PetscReal,PetscReal);
    289: PETSC_EXTERN PetscErrorCode NEPCISSGetThreshold(NEP,PetscReal*,PetscReal*);
    290: PETSC_EXTERN PetscErrorCode NEPCISSSetRefinement(NEP,PetscInt,PetscInt);
    291: PETSC_EXTERN PetscErrorCode NEPCISSGetRefinement(NEP,PetscInt*,PetscInt*);
    292: PETSC_EXTERN PetscErrorCode NEPCISSGetKSPs(NEP,PetscInt*,KSP**);
    293: #else
    294: #define SlepcNEPCISSUnavailable(nep) do { \
    296:     SETERRQ1(PetscObjectComm((PetscObject)nep),PETSC_ERR_SUP,"%s() not available with real scalars",PETSC_FUNCTION_NAME); \
    297:     } while (0)
    298: PETSC_STATIC_INLINE PetscErrorCode NEPCISSSetSizes(NEP nep,PETSC_UNUSED PetscInt ip,PETSC_UNUSED PetscInt bs,PETSC_UNUSED PetscInt ms,PETSC_UNUSED PetscInt npart,PETSC_UNUSED PetscInt bsmax,PETSC_UNUSED PetscBool realmats) {SlepcNEPCISSUnavailable(nep);}
    299: PETSC_STATIC_INLINE PetscErrorCode NEPCISSGetSizes(NEP nep,PETSC_UNUSED PetscInt *ip,PETSC_UNUSED PetscInt *bs,PETSC_UNUSED PetscInt *ms,PETSC_UNUSED PetscInt *npart,PETSC_UNUSED PetscInt *bsmak,PETSC_UNUSED PetscBool *realmats) {SlepcNEPCISSUnavailable(nep);}
    300: PETSC_STATIC_INLINE PetscErrorCode NEPCISSSetThreshold(NEP nep,PETSC_UNUSED PetscReal delta,PETSC_UNUSED PetscReal spur) {SlepcNEPCISSUnavailable(nep);}
    301: PETSC_STATIC_INLINE PetscErrorCode NEPCISSGetThreshold(NEP nep,PETSC_UNUSED PetscReal *delta,PETSC_UNUSED PetscReal *spur) {SlepcNEPCISSUnavailable(nep);}
    302: PETSC_STATIC_INLINE PetscErrorCode NEPCISSSetRefinement(NEP nep,PETSC_UNUSED PetscInt inner,PETSC_UNUSED PetscInt blsize) {SlepcNEPCISSUnavailable(nep);}
    303: PETSC_STATIC_INLINE PetscErrorCode NEPCISSGetRefinement(NEP nep,PETSC_UNUSED PetscInt *inner,PETSC_UNUSED PetscInt *blsize) {SlepcNEPCISSUnavailable(nep);}
    304: PETSC_STATIC_INLINE PetscErrorCode NEPCISSGetKSPs(NEP nep,PETSC_UNUSED PetscInt *nsolve,PETSC_UNUSED KSP **ksp) {SlepcNEPCISSUnavailable(nep);}
    305: #undef SlepcNEPCISSUnavailable
    306: #endif

    308: PETSC_EXTERN PetscErrorCode NEPInterpolSetPEP(NEP,PEP);
    309: PETSC_EXTERN PetscErrorCode NEPInterpolGetPEP(NEP,PEP*);
    310: PETSC_EXTERN PetscErrorCode NEPInterpolSetInterpolation(NEP,PetscReal,PetscInt);
    311: PETSC_EXTERN PetscErrorCode NEPInterpolGetInterpolation(NEP,PetscReal*,PetscInt*);

    313: PETSC_EXTERN PetscErrorCode NEPNLEIGSSetSingularitiesFunction(NEP,PetscErrorCode (*)(NEP,PetscInt*,PetscScalar*,void*),void*);
    314: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetSingularitiesFunction(NEP,PetscErrorCode (**)(NEP,PetscInt*,PetscScalar*,void*),void **);
    315: PETSC_EXTERN PetscErrorCode NEPNLEIGSSetRestart(NEP,PetscReal);
    316: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetRestart(NEP,PetscReal*);
    317: PETSC_EXTERN PetscErrorCode NEPNLEIGSSetLocking(NEP,PetscBool);
    318: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetLocking(NEP,PetscBool*);
    319: PETSC_EXTERN PetscErrorCode NEPNLEIGSSetInterpolation(NEP,PetscReal,PetscInt);
    320: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetInterpolation(NEP,PetscReal*,PetscInt*);
    321: PETSC_EXTERN PetscErrorCode NEPNLEIGSSetRKShifts(NEP,PetscInt,PetscScalar*);
    322: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetRKShifts(NEP,PetscInt*,PetscScalar**);
    323: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetKSPs(NEP,PetscInt*,KSP**);

    325: #endif