SNESNGMRESSetSelectType#
Sets the selection type for SNESNGMRES.  This determines how the candidate solution and combined solution are used to create the next iterate.
Synopsis#
#include "petscsnes.h" 
PetscErrorCode SNESNGMRESSetSelectType(SNES snes, SNESNGMRESSelectType stype)
Logically Collective
Input Parameters#
- snes - the iterative context 
- stype - selection type, see - SNESNGMRESSelectType
Options Database Key#
- -snes_ngmres_select_type<difference,none,linesearch> - select type 
Note#
The default line search used is the SNESLINESEARCHL2 line search and it requires two additional function evaluations.
See Also#
SNES: Nonlinear Solvers, SNES, SNESNGMRES, SNESNGMRESSelectType, SNES_NGMRES_SELECT_NONE, SNES_NGMRES_SELECT_DIFFERENCE, SNES_NGMRES_SELECT_LINESEARCH,
SNESNGMRESSetRestartType()
Level#
intermediate
Location#
Implementations#
SNESNGMRESSetSelectType_NGMRES() in src/snes/impls/ngmres/snesngmres.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages