slepc-3.17.2 2022-08-09
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# NEPNArnoldiGetLagPreconditioner

Indicates how often the preconditioner is rebuilt.

### Synopsis

    #include "slepcnep.h"
    PetscErrorCode NEPNArnoldiGetLagPreconditioner(NEP nep,PetscInt *lag)

Not Collective

### Input Parameter

| nep | - nonlinear eigenvalue solver

### Output Parameter

| lag | - the lag parameter

### See Also

NEPNArnoldiSetLagPreconditioner()

Location: src/nep/impls/narnoldi/narnoldi.c
Index of all NEP routines
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Index of all manual pages