SNESVIComputeInactiveSetFtY#

Computes the directional derivative for variational inequalities on the inactive set, assuming that there exists some $G(x)$ for which the SNESFunctionFn $F(x) = grad G(x)$ (relevant for some line search algorithms)

Synopsis#

#include "petscsnes.h" 
PetscErrorCode SNESVIComputeInactiveSetFtY(SNES snes, Vec F, Vec X, Vec Y, PetscScalar *fty)

Input Parameters#

snes - the SNES context
F - the nonlinear function vector
X - the SNES solution vector
Y - the direction vector

Output Parameter#

fty - the directional derivative

Level#

developer

Location#

src/snes/impls/vi/vi.c

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