PEPSetStoppingTestFunction#

Sets a function to decide when to stop the outer iteration of the eigensolver.

Synopsis#

#include "slepcpep.h" 
PetscErrorCode PEPSetStoppingTestFunction(PEP pep,PEPStoppingTestFn *stop,void *ctx,PetscCtxDestroyFn *destroy)

Logically Collective

Input Parameters#

  • pep - eigensolver context obtained from PEPCreate()

  • stop - stopping test function, see PEPStoppingTestFn for the calling sequence

  • ctx - context for private data for the stopping routine (may be NULL)

  • destroy - a routine for destroying the context (may be NULL), see PetscCtxDestroyFn for the calling sequence

Note#

Normal usage is to first call the default routine PEPStoppingBasic() and then set reason to PEP_CONVERGED_USER if some user-defined conditions have been met. To let the eigensolver continue iterating, the result must be left as PEP_CONVERGED_ITERATING.

See Also#

PEPSetStoppingTest(), PEPStoppingBasic()

Level#

advanced

Location#

src/pep/interface/pepopts.c

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