Actual source code: slepcnep.h
slepc-3.9.1 2018-05-02
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_CONVERGED_ITERATING = 0} NEPConvergedReason;
155: PETSC_EXTERN const char *const*NEPConvergedReasons;
157: PETSC_EXTERN PetscErrorCode NEPCreate(MPI_Comm,NEP*);
158: PETSC_EXTERN PetscErrorCode NEPDestroy(NEP*);
159: PETSC_EXTERN PetscErrorCode NEPReset(NEP);
160: PETSC_EXTERN PetscErrorCode NEPSetType(NEP,NEPType);
161: PETSC_EXTERN PetscErrorCode NEPGetType(NEP,NEPType*);
162: PETSC_EXTERN PetscErrorCode NEPSetProblemType(NEP,NEPProblemType);
163: PETSC_EXTERN PetscErrorCode NEPGetProblemType(NEP,NEPProblemType*);
164: PETSC_EXTERN PetscErrorCode NEPSetTarget(NEP,PetscScalar);
165: PETSC_EXTERN PetscErrorCode NEPGetTarget(NEP,PetscScalar*);
166: PETSC_EXTERN PetscErrorCode NEPSetFromOptions(NEP);
167: PETSC_EXTERN PetscErrorCode NEPSetUp(NEP);
168: PETSC_EXTERN PetscErrorCode NEPSolve(NEP);
169: PETSC_EXTERN PetscErrorCode NEPView(NEP,PetscViewer);
170: PETSC_STATIC_INLINE PetscErrorCode NEPViewFromOptions(NEP nep,PetscObject obj,const char name[]) {return PetscObjectViewFromOptions((PetscObject)nep,obj,name);}
171: PETSC_EXTERN PetscErrorCode NEPErrorView(NEP,NEPErrorType,PetscViewer);
172: PETSC_EXTERN PetscErrorCode NEPErrorViewFromOptions(NEP);
173: PETSC_EXTERN PetscErrorCode NEPReasonView(NEP,PetscViewer);
174: PETSC_EXTERN PetscErrorCode NEPReasonViewFromOptions(NEP);
175: PETSC_EXTERN PetscErrorCode NEPValuesView(NEP,PetscViewer);
176: PETSC_EXTERN PetscErrorCode NEPValuesViewFromOptions(NEP);
177: PETSC_EXTERN PetscErrorCode NEPVectorsView(NEP,PetscViewer);
178: PETSC_EXTERN PetscErrorCode NEPVectorsViewFromOptions(NEP);
180: PETSC_EXTERN PetscErrorCode NEPSetFunction(NEP,Mat,Mat,PetscErrorCode (*)(NEP,PetscScalar,Mat,Mat,void*),void*);
181: PETSC_EXTERN PetscErrorCode NEPGetFunction(NEP,Mat*,Mat*,PetscErrorCode (**)(NEP,PetscScalar,Mat,Mat,void*),void**);
182: PETSC_EXTERN PetscErrorCode NEPSetJacobian(NEP,Mat,PetscErrorCode (*)(NEP,PetscScalar,Mat,void*),void*);
183: PETSC_EXTERN PetscErrorCode NEPGetJacobian(NEP,Mat*,PetscErrorCode (**)(NEP,PetscScalar,Mat,void*),void**);
184: PETSC_EXTERN PetscErrorCode NEPSetDerivatives(NEP,Mat,PetscErrorCode (*)(NEP,PetscScalar,PetscInt,Mat,void*),void*);
185: PETSC_EXTERN PetscErrorCode NEPGetDerivatives(NEP,Mat*,PetscErrorCode (**)(NEP,PetscScalar,PetscInt,Mat,void*),void**);
186: PETSC_EXTERN PetscErrorCode NEPSetSplitOperator(NEP,PetscInt,Mat*,FN*,MatStructure);
187: PETSC_EXTERN PetscErrorCode NEPGetSplitOperatorTerm(NEP,PetscInt,Mat*,FN*);
188: PETSC_EXTERN PetscErrorCode NEPGetSplitOperatorInfo(NEP,PetscInt*,MatStructure*);
190: PETSC_EXTERN PetscErrorCode NEPSetBV(NEP,BV);
191: PETSC_EXTERN PetscErrorCode NEPGetBV(NEP,BV*);
192: PETSC_EXTERN PetscErrorCode NEPSetRG(NEP,RG);
193: PETSC_EXTERN PetscErrorCode NEPGetRG(NEP,RG*);
194: PETSC_EXTERN PetscErrorCode NEPSetDS(NEP,DS);
195: PETSC_EXTERN PetscErrorCode NEPGetDS(NEP,DS*);
196: PETSC_EXTERN PetscErrorCode NEPRefineGetKSP(NEP,KSP*);
197: PETSC_EXTERN PetscErrorCode NEPSetTolerances(NEP,PetscReal,PetscInt);
198: PETSC_EXTERN PetscErrorCode NEPGetTolerances(NEP,PetscReal*,PetscInt*);
199: PETSC_EXTERN PetscErrorCode NEPSetConvergenceTestFunction(NEP,PetscErrorCode (*)(NEP,PetscScalar,PetscScalar,PetscReal,PetscReal*,void*),void*,PetscErrorCode (*)(void*));
200: PETSC_EXTERN PetscErrorCode NEPSetConvergenceTest(NEP,NEPConv);
201: PETSC_EXTERN PetscErrorCode NEPGetConvergenceTest(NEP,NEPConv*);
202: PETSC_EXTERN PetscErrorCode NEPConvergedAbsolute(NEP,PetscScalar,PetscScalar,PetscReal,PetscReal*,void*);
203: PETSC_EXTERN PetscErrorCode NEPConvergedRelative(NEP,PetscScalar,PetscScalar,PetscReal,PetscReal*,void*);
204: PETSC_EXTERN PetscErrorCode NEPConvergedNorm(NEP,PetscScalar,PetscScalar,PetscReal,PetscReal*,void*);
205: PETSC_EXTERN PetscErrorCode NEPSetStoppingTestFunction(NEP,PetscErrorCode (*)(NEP,PetscInt,PetscInt,PetscInt,PetscInt,NEPConvergedReason*,void*),void*,PetscErrorCode (*)(void*));
206: PETSC_EXTERN PetscErrorCode NEPSetStoppingTest(NEP,NEPStop);
207: PETSC_EXTERN PetscErrorCode NEPGetStoppingTest(NEP,NEPStop*);
208: PETSC_EXTERN PetscErrorCode NEPStoppingBasic(NEP,PetscInt,PetscInt,PetscInt,PetscInt,NEPConvergedReason*,void*);
209: PETSC_EXTERN PetscErrorCode NEPSetDimensions(NEP,PetscInt,PetscInt,PetscInt);
210: PETSC_EXTERN PetscErrorCode NEPGetDimensions(NEP,PetscInt*,PetscInt*,PetscInt*);
211: PETSC_EXTERN PetscErrorCode NEPSetRefine(NEP,NEPRefine,PetscInt,PetscReal,PetscInt,NEPRefineScheme);
212: PETSC_EXTERN PetscErrorCode NEPGetRefine(NEP,NEPRefine*,PetscInt*,PetscReal*,PetscInt*,NEPRefineScheme*);
214: PETSC_EXTERN PetscErrorCode NEPGetConverged(NEP,PetscInt*);
215: PETSC_EXTERN PetscErrorCode NEPGetEigenpair(NEP,PetscInt,PetscScalar*,PetscScalar*,Vec,Vec);
217: PETSC_EXTERN PetscErrorCode NEPComputeError(NEP,PetscInt,NEPErrorType,PetscReal*);
218: PETSC_DEPRECATED("Use NEPComputeError()") PETSC_STATIC_INLINE PetscErrorCode NEPComputeRelativeError(NEP nep,PetscInt i,PetscReal *r) {return NEPComputeError(nep,i,NEP_ERROR_RELATIVE,r);}
219: 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);}
220: PETSC_EXTERN PetscErrorCode NEPGetErrorEstimate(NEP,PetscInt,PetscReal*);
222: PETSC_EXTERN PetscErrorCode NEPComputeFunction(NEP,PetscScalar,Mat,Mat);
223: PETSC_EXTERN PetscErrorCode NEPComputeJacobian(NEP,PetscScalar,Mat);
224: PETSC_EXTERN PetscErrorCode NEPApplyFunction(NEP,PetscScalar,Vec,Vec,Vec,Mat,Mat);
225: PETSC_EXTERN PetscErrorCode NEPApplyJacobian(NEP,PetscScalar,Vec,Vec,Vec,Mat);
226: PETSC_EXTERN PetscErrorCode NEPProjectOperator(NEP,PetscInt,PetscInt);
228: PETSC_EXTERN PetscErrorCode NEPMonitor(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt);
229: PETSC_EXTERN PetscErrorCode NEPMonitorSet(NEP,PetscErrorCode (*)(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,void*),void*,PetscErrorCode (*)(void**));
230: PETSC_EXTERN PetscErrorCode NEPMonitorSetFromOptions(NEP,const char*,const char*,const char*,PetscErrorCode (*)(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,PetscViewerAndFormat*),PetscBool);
231: PETSC_EXTERN PetscErrorCode NEPConvMonitorSetFromOptions(NEP,const char*,const char*,const char*,PetscErrorCode (*)(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,SlepcConvMonitor));
232: PETSC_EXTERN PetscErrorCode NEPMonitorCancel(NEP);
233: PETSC_EXTERN PetscErrorCode NEPGetMonitorContext(NEP,void **);
234: PETSC_EXTERN PetscErrorCode NEPGetIterationNumber(NEP,PetscInt*);
236: PETSC_EXTERN PetscErrorCode NEPSetInitialSpace(NEP,PetscInt,Vec*);
237: PETSC_EXTERN PetscErrorCode NEPSetWhichEigenpairs(NEP,NEPWhich);
238: PETSC_EXTERN PetscErrorCode NEPGetWhichEigenpairs(NEP,NEPWhich*);
239: PETSC_EXTERN PetscErrorCode NEPSetEigenvalueComparison(NEP,PetscErrorCode (*func)(PetscScalar,PetscScalar,PetscScalar,PetscScalar,PetscInt*,void*),void*);
241: PETSC_EXTERN PetscErrorCode NEPMonitorAll(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,PetscViewerAndFormat*);
242: PETSC_EXTERN PetscErrorCode NEPMonitorFirst(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,PetscViewerAndFormat*);
243: PETSC_EXTERN PetscErrorCode NEPMonitorConverged(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,SlepcConvMonitor);
244: PETSC_EXTERN PetscErrorCode NEPMonitorLGCreate(MPI_Comm,const char[],const char[],int,int,int,int,PetscDrawLG*);
245: PETSC_EXTERN PetscErrorCode NEPMonitorLG(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,void*);
246: PETSC_EXTERN PetscErrorCode NEPMonitorLGAll(NEP,PetscInt,PetscInt,PetscScalar*,PetscScalar*,PetscReal*,PetscInt,void*);
248: PETSC_EXTERN PetscErrorCode NEPSetTrackAll(NEP,PetscBool);
249: PETSC_EXTERN PetscErrorCode NEPGetTrackAll(NEP,PetscBool*);
251: PETSC_EXTERN PetscErrorCode NEPSetOptionsPrefix(NEP,const char*);
252: PETSC_EXTERN PetscErrorCode NEPAppendOptionsPrefix(NEP,const char*);
253: PETSC_EXTERN PetscErrorCode NEPGetOptionsPrefix(NEP,const char*[]);
255: PETSC_EXTERN PetscErrorCode NEPGetConvergedReason(NEP,NEPConvergedReason *);
257: PETSC_EXTERN PetscFunctionList NEPList;
258: PETSC_EXTERN PetscErrorCode NEPRegister(const char[],PetscErrorCode(*)(NEP));
260: PETSC_EXTERN PetscErrorCode NEPSetWorkVecs(NEP,PetscInt);
261: PETSC_EXTERN PetscErrorCode NEPAllocateSolution(NEP,PetscInt);
263: /* --------- options specific to particular eigensolvers -------- */
265: PETSC_EXTERN PetscErrorCode NEPRIISetMaximumIterations(NEP,PetscInt);
266: PETSC_EXTERN PetscErrorCode NEPRIIGetMaximumIterations(NEP,PetscInt*);
267: PETSC_EXTERN PetscErrorCode NEPRIISetLagPreconditioner(NEP,PetscInt);
268: PETSC_EXTERN PetscErrorCode NEPRIIGetLagPreconditioner(NEP,PetscInt*);
269: PETSC_EXTERN PetscErrorCode NEPRIISetConstCorrectionTol(NEP,PetscBool);
270: PETSC_EXTERN PetscErrorCode NEPRIIGetConstCorrectionTol(NEP,PetscBool*);
271: PETSC_EXTERN PetscErrorCode NEPRIISetKSP(NEP,KSP);
272: PETSC_EXTERN PetscErrorCode NEPRIIGetKSP(NEP,KSP*);
274: PETSC_EXTERN PetscErrorCode NEPSLPSetEPS(NEP,EPS);
275: PETSC_EXTERN PetscErrorCode NEPSLPGetEPS(NEP,EPS*);
277: PETSC_EXTERN PetscErrorCode NEPNArnoldiSetKSP(NEP,KSP);
278: PETSC_EXTERN PetscErrorCode NEPNArnoldiGetKSP(NEP,KSP*);
280: #if defined(PETSC_USE_COMPLEX)
281: PETSC_EXTERN PetscErrorCode NEPCISSSetSizes(NEP,PetscInt,PetscInt,PetscInt,PetscInt,PetscInt,PetscBool);
282: PETSC_EXTERN PetscErrorCode NEPCISSGetSizes(NEP,PetscInt*,PetscInt*,PetscInt*,PetscInt*,PetscInt*,PetscBool*);
283: PETSC_EXTERN PetscErrorCode NEPCISSSetThreshold(NEP,PetscReal,PetscReal);
284: PETSC_EXTERN PetscErrorCode NEPCISSGetThreshold(NEP,PetscReal*,PetscReal*);
285: PETSC_EXTERN PetscErrorCode NEPCISSSetRefinement(NEP,PetscInt,PetscInt);
286: PETSC_EXTERN PetscErrorCode NEPCISSGetRefinement(NEP,PetscInt*,PetscInt*);
287: PETSC_EXTERN PetscErrorCode NEPCISSGetKSPs(NEP,PetscInt*,KSP**);
288: #else
289: #define SlepcNEPCISSUnavailable(nep) do { \
291: SETERRQ1(PetscObjectComm((PetscObject)nep),PETSC_ERR_SUP,"%s() not available with real scalars",PETSC_FUNCTION_NAME); \
292: } while (0)
293: 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);}
294: 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);}
295: PETSC_STATIC_INLINE PetscErrorCode NEPCISSSetThreshold(NEP nep,PETSC_UNUSED PetscReal delta,PETSC_UNUSED PetscReal spur) {SlepcNEPCISSUnavailable(nep);}
296: PETSC_STATIC_INLINE PetscErrorCode NEPCISSGetThreshold(NEP nep,PETSC_UNUSED PetscReal *delta,PETSC_UNUSED PetscReal *spur) {SlepcNEPCISSUnavailable(nep);}
297: PETSC_STATIC_INLINE PetscErrorCode NEPCISSSetRefinement(NEP nep,PETSC_UNUSED PetscInt inner,PETSC_UNUSED PetscInt blsize) {SlepcNEPCISSUnavailable(nep);}
298: PETSC_STATIC_INLINE PetscErrorCode NEPCISSGetRefinement(NEP nep,PETSC_UNUSED PetscInt *inner,PETSC_UNUSED PetscInt *blsize) {SlepcNEPCISSUnavailable(nep);}
299: PETSC_STATIC_INLINE PetscErrorCode NEPCISSGetKSPs(NEP nep,PETSC_UNUSED PetscInt *nsolve,PETSC_UNUSED KSP **ksp) {SlepcNEPCISSUnavailable(nep);}
300: #undef SlepcNEPCISSUnavailable
301: #endif
303: PETSC_EXTERN PetscErrorCode NEPInterpolSetPEP(NEP,PEP);
304: PETSC_EXTERN PetscErrorCode NEPInterpolGetPEP(NEP,PEP*);
305: PETSC_EXTERN PetscErrorCode NEPInterpolSetInterpolation(NEP,PetscReal,PetscInt);
306: PETSC_EXTERN PetscErrorCode NEPInterpolGetInterpolation(NEP,PetscReal*,PetscInt*);
308: PETSC_EXTERN PetscErrorCode NEPNLEIGSSetSingularitiesFunction(NEP,PetscErrorCode (*)(NEP,PetscInt*,PetscScalar*,void*),void*);
309: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetSingularitiesFunction(NEP,PetscErrorCode (**)(NEP,PetscInt*,PetscScalar*,void*),void **);
310: PETSC_EXTERN PetscErrorCode NEPNLEIGSSetRestart(NEP,PetscReal);
311: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetRestart(NEP,PetscReal*);
312: PETSC_EXTERN PetscErrorCode NEPNLEIGSSetLocking(NEP,PetscBool);
313: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetLocking(NEP,PetscBool*);
314: PETSC_EXTERN PetscErrorCode NEPNLEIGSSetInterpolation(NEP,PetscReal,PetscInt);
315: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetInterpolation(NEP,PetscReal*,PetscInt*);
316: PETSC_EXTERN PetscErrorCode NEPNLEIGSSetRKShifts(NEP,PetscInt,PetscScalar*);
317: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetRKShifts(NEP,PetscInt*,PetscScalar**);
318: PETSC_EXTERN PetscErrorCode NEPNLEIGSGetKSPs(NEP,PetscInt*,KSP**);
320: #endif