SNESSolve#
Solves a nonlinear system F(x) = b.
Synopsis#
#include "petscsnes.h"
PetscErrorCode SNESSolve(SNES snes, Vec b, Vec x)
Collective
Input Parameters#
snes - the
SNES
contextb - the constant part of the equation F(x) = b, or
NULL
to use zero.x - the solution vector.
Note#
The user should initialize the vector, x
, with the initial guess
for the nonlinear solve prior to calling SNESSolve()
or use SNESSetInitialSolution()
. In particular,
to employ an initial guess of zero, the user should explicitly set
this vector to zero by calling VecSet()
.
See Also#
SNES: Nonlinear Solvers, SNES
, SNESCreate()
, SNESDestroy()
, SNESSetFunction()
, SNESSetJacobian()
, SNESSetGridSequence()
, SNESGetSolution()
,
SNESNewtonTRSetPreCheck()
, SNESNewtonTRGetPreCheck()
, SNESNewtonTRSetPostCheck()
, SNESNewtonTRGetPostCheck()
,
SNESLineSearchSetPostCheck()
, SNESLineSearchGetPostCheck()
, SNESLineSearchSetPreCheck()
, SNESLineSearchGetPreCheck()
, SNESSetInitialSolution()
Level#
beginner
Location#
Examples#
src/snes/tutorials/ex2.c
src/snes/tutorials/ex12.c
src/snes/tutorials/ex1.c
src/snes/tutorials/ex13.c
src/snes/tutorials/ex16.c
src/snes/tutorials/ex18.c
src/snes/tutorials/ex19.c
src/snes/tutorials/ex14.c
src/snes/tutorials/ex17.c
src/snes/tutorials/ex15.c
Implementations#
SNESSolve_Composite() in src/snes/impls/composite/snescomposite.c
SNESSolve_FAS() in src/snes/impls/fas/fas.c
SNESSolve_NGS() in src/snes/impls/gs/snesgs.c
SNESSolve_KSPONLY() in src/snes/impls/ksponly/ksponly.c
SNESSolve_NEWTONLS() in src/snes/impls/ls/ls.c
SNESSolve_MS() in src/snes/impls/ms/ms.c
SNESSolve_Multiblock() in src/snes/impls/multiblock/multiblock.c
SNESSolve_NASM() in src/snes/impls/nasm/nasm.c
SNESSolve_NCG() in src/snes/impls/ncg/snesncg.c
SNESSolve_Anderson() in src/snes/impls/ngmres/anderson.c
SNESSolve_NGMRES() in src/snes/impls/ngmres/snesngmres.c
SNESSolve_NEWTONTRDC() in src/snes/impls/ntrdc/ntrdc.c
SNESSolve_Patch() in src/snes/impls/patch/snespatch.c
SNESSolve_QN() in src/snes/impls/qn/qn.c
SNESSolve_NRichardson() in src/snes/impls/richardson/snesrichardson.c
SNESSolve_Shell() in src/snes/impls/shell/snesshell.c
SNESSolve_NEWTONTR() in src/snes/impls/tr/tr.c
SNESSolve_VINEWTONRSLS() in src/snes/impls/vi/rs/virs.c
SNESSolve_VINEWTONSSLS() in src/snes/impls/vi/ss/viss.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages