petsc-master 2014-09-16
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SNESSetComputeInitialGuess

Sets a routine used to compute an initial guess for the problem

Synopsis

#include "petscsnes.h"  
PetscErrorCode  SNESSetComputeInitialGuess(SNES snes,PetscErrorCode (*func)(SNES,Vec,void*),void *ctx)
Logically Collective on SNES

Input Parameters

snes - the SNES context
func - function evaluation routine
ctx - [optional] user-defined context for private data for the function evaluation routine (may be NULL)

Calling sequence of func

   func (SNES snes,Vec x,void *ctx);

f -function vector
ctx -optional user-defined function context

Keywords

SNES, nonlinear, set, function

See Also

SNESGetFunction(), SNESComputeFunction(), SNESSetJacobian()

Level:intermediate
Location:
src/snes/interface/snes.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/snes/examples/tutorials/ex7.c.html
src/snes/examples/tutorials/ex18.c.html
src/snes/examples/tutorials/ex20.c.html
src/snes/examples/tutorials/ex48.c.html
src/snes/examples/tutorials/ex58.c.html