slepc-3.21.2 2024-09-25
PEPSetStoppingTestFunction
Sets a function to decide when to stop the outer iteration of the eigensolver.
Synopsis
#include "slepcpep.h"
PetscErrorCode PEPSetStoppingTestFunction(PEP pep,PetscErrorCode (*stop)(PEP pep,PetscInt its,PetscInt max_it,PetscInt nconv,PetscInt nev,PEPConvergedReason *reason,void *ctx),void* ctx,PetscErrorCode (*destroy)(void*))
Logically Collective
Input Parameters
| pep | - eigensolver context obtained from PEPCreate()
|
| stop | - pointer to the stopping test function
|
| ctx | - context for private data for the stopping routine (may be null)
|
| destroy | - a routine for destroying the context (may be null)
|
Calling sequence of stop
PetscErrorCode stop(PEP pep,PetscInt its,PetscInt max_it,PetscInt nconv,PetscInt nev,PEPConvergedReason *reason,void *ctx)
| pep | - eigensolver context obtained from PEPCreate()
|
| its | - current number of iterations
|
| max_it | - maximum number of iterations
|
| nconv | - number of currently converged eigenpairs
|
| nev | - number of requested eigenpairs
|
| reason | - (output) result of the stopping test
|
| ctx | - optional context, as set by PEPSetStoppingTestFunction()
|
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
Index of all PEP routines
Table of Contents for all manual pages
Index of all manual pages