SNESLineSearchGetVecs#
Gets the vectors from the SNESLineSearch
context
Synopsis#
#include "petscsnes.h"
PetscErrorCode SNESLineSearchGetVecs(SNESLineSearch linesearch, Vec *X, Vec *F, Vec *Y, Vec *W, Vec *G)
Not Collective on but the vectors are parallel
Input Parameter#
linesearch - linesearch context
Output Parameters#
X - Solution vector
F - Function vector
Y - Search direction vector
W - Solution work vector
G - Function work vector
Notes#
At the beginning of a line search application, X should contain a solution and the vector F the function computed at X. At the end of the line search application, X should contain the new solution, and F the function evaluated at the new solution.
These vectors are owned by the SNESLineSearch
and should not be destroyed by the caller
See Also#
SNESLineSearch
, SNESLineSearchGetNorms()
, SNESLineSearchSetVecs()
Level#
advanced
Location#
Examples#
src/snes/tutorials/ex1f.F90.html
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages