SNESQNSetScaleType

Sets the scaling type for the inner inverse Jacobian in SNESQN.

Synopsis

#include "petscsnes.h" 
PetscErrorCode SNESQNSetScaleType(SNES snes, SNESQNScaleType stype)

Logically Collective

Input Parameters

• snes - the nonlinear solver context

• stype - scale type, see SNESQNScaleType

Options Database Key

• -snes_qn_scale_type <diagonal,none,scalar,jacobian> - Scaling type

See Also

SNES: Nonlinear Solvers, SNES, SNESQN, SNESLineSearch, SNESQNScaleType, SNESSetJacobian(), SNESQNType, SNESQNRestartType

Level

intermediate

Location

src/snes/impls/qn/qn.c

Implementations

SNESQNSetScaleType_QN() in src/snes/impls/qn/qn.c

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