petsc-3.14.6 2021-03-30
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)
Input Parameters
| 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
SNESLineSearchGetNorms(), SNESLineSearchSetVecs()
Level
advanced
Location
src/snes/linesearch/interface/linesearch.c
Examples
src/snes/tutorials/ex1f.F90.html
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages