SNESComputeObjective#

Computes the objective function that has been provided by SNESSetObjective()

Synopsis#

#include "petscsnes.h"   
PetscErrorCode SNESComputeObjective(SNES snes, Vec X, PetscReal *ob)

Collective

Input Parameters#

snes - the SNES context
X - the state vector

Output Parameter#

ob - the objective value

Notes#

SNESComputeObjective() is typically used within line-search routines, so users would not generally call this routine themselves.

When solving for \(F(x) = b\), this routine computes \(objective(x) - x^T b\) where \(objective(x)\) is the function provided with SNESSetObjective()

Level#

developer

Location#

src/snes/interface/snesob.c

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