slepc-3.22.2 2024-12-02
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# EPSSetConvergenceTestFunction

Sets a function to compute the error estimate used in the convergence test.

### Synopsis

    #include "slepceps.h"
    PetscErrorCode EPSSetConvergenceTestFunction(EPS eps,EPSConvergenceTestFn *func,void* ctx,PetscErrorCode (*destroy)(void*))

Logically Collective

### Input Parameters

| eps | - eigensolver context obtained from EPSCreate()
| func | - convergence test function, see EPSConvergenceTestFn for the calling sequence
| ctx | - context for private data for the convergence routine (may be NULL)
| destroy | - a routine for destroying the context (may be NULL)

### Note

If the error estimate returned by the convergence test function is less than the tolerance, then the eigenvalue is accepted as converged.

### See Also

EPSSetConvergenceTest(), EPSSetTolerances()

### Level

advanced

### Location

src/eps/interface/epsopts.c
Index of all EPS routines
Table of Contents for all manual pages
Index of all manual pages