petsc-master 2014-11-25
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SNESQNSetType

Sets the quasi-Newton variant to be used in SNESQN.

Synopsis

#include "petscsnes.h" 
PetscErrorCode SNESQNSetType(SNES snes, SNESQNType qtype)
Logically Collective on SNES

Input Parameters

snes - the iterative context
qtype - variant type

Options Database

-snes_qn_scale_type<lbfgs,broyden,badbroyden> -

SNESQNTypes

SNES_QN_LBFGS - LBFGS variant
SNES_QN_BROYDEN - Broyden variant
SNES_QN_BADBROYDEN - Bad Broyden variant

Keywords

SNES, SNESQN, type, set

Level:beginner
Location:
src/snes/impls/qn/qn.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages