SNESLineSearchVIDirDerivFn#

A prototype of a SNES function that computes the directional derivative considering the VI bounds, passed to SNESLineSearchSetVIFunctions()

Synopsis#

PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(SNESLineSearchVIDirDerivFn)(SNES snes, Vec f, Vec u, Vec y, PetscScalar *fty);

Calling Sequence#

snes - SNES context
f - the function vector to compute the directional derivative with
u - the current solution, entries that are on the VI bounds are ignored
y - the direction to compute the directional derivative
fty - the resulting directional derivative

See Also#

SNES: Nonlinear Solvers, SNES, SNESLineSearch, SNESLineSearchVIProjectFn, SNESLineSearchVIProjectFn, SNESLineSearchSetVIFunctions(), SNESLineSearchGetVIFunctions()

Level#

advanced

Location#

include/petscsnes.h

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