petsc-3.13.6 2020-09-29
SNESLineSearchGetPreCheck
Gets the pre-check function for the line search routine.
Synopsis
#include "petscsnes.h"
PetscErrorCode SNESLineSearchGetPreCheck(SNESLineSearch linesearch, PetscErrorCode (**func)(SNESLineSearch,Vec,Vec,PetscBool*,void*),void **ctx)
Input Parameters
linesearch -the SNESLineSearch context
Output Parameters
| func | - [optional] function evaluation routine, see SNESLineSearchPreCheck() for calling sequence
|
| ctx | - [optional] user-defined context for private data for the function evaluation routine (may be NULL)
|
See Also
SNESGetLineSearch(), SNESGetLineSearch(), SNESLineSearchPreCheck(), SNESLineSearchGetPostCheck(), SNESLineSearchSetPreCheck(), SNESLineSearchSetPostCheck()
Level
intermediate
Location
src/snes/linesearch/interface/linesearch.c
Index of all SNES routines
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Index of all manual pages