SNESLineSearchSetOrder#

Sets the maximum order of the polynomial fit used in the line search

Synopsis#

#include "petscsnes.h" 
PetscErrorCode SNESLineSearchSetOrder(SNESLineSearch linesearch, PetscInt order)

Input Parameters#

  • linesearch - the line search context

  • order - The order

Values for order:

  • 1 or SNES_LINESEARCH_ORDER_LINEAR - linear order

  • 2 or SNES_LINESEARCH_ORDER_QUADRATIC - quadratic order

  • 3 or SNES_LINESEARCH_ORDER_CUBIC - cubic order

Options Database Key#

  • -snes_linesearch_order - 1, 2, 3. Most types only support certain orders (SNESLINESEARCHBT supports 2 or 3)

Note#

These orders are supported by SNESLINESEARCHBT and SNESLINESEARCHCP

See Also#

SNES: Nonlinear Solvers, SNES, SNESLineSearch, SNESLineSearchGetOrder(), SNESLineSearchSetDamping()

Level#

intermediate

Location#

src/snes/linesearch/interface/linesearch.c

Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages