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
SNEScontextb - the constant part of the equation F(x) = b, or
NULLto 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/ex26.c
src/snes/tutorials/ex55.c
src/ts/tutorials/ex30.c
src/tao/tutorials/ex2.c
src/tao/tutorials/ex1.c
src/snes/tutorials/ex69.c
src/snes/tutorials/ex48.c
src/snes/tutorials/ex35.c
src/snes/tutorials/ex24.c
src/snes/tutorials/ex77.c
Implementations#
SNESSolve_NEWTONAL() in src/snes/impls/al/al.c
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