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

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Index of all SNES routines
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Index of all manual pages