| SNESNEWTONLS | - Newton's method with line search
(systems of nonlinear equations)
|
| SNESNEWTONTR | - Newton's method with trust region
(systems of nonlinear equations)
|
Normally, it is best to use the SNESSetFromOptions() command and then
set the SNES solver type from the options database rather than by using
this routine. Using the options database provides the user with
maximum flexibility in evaluating the many nonlinear solvers.
The SNESSetType() routine is provided for those situations where it
is necessary to set the nonlinear solver independently of the command
line or options database. This might be the case, for example, when
the choice of solver changes during the execution of the program,
and the user's application is taking responsibility for choosing the
appropriate method.
Developer Notes: SNESRegister() adds a constructor for a new SNESType to SNESList, SNESSetType() locates
the constructor in that list and calls it to create the spexific object.
Keywords
SNES, set, type
See Also
SNESType, SNESCreate(), SNESDestroy(), SNESGetType(), SNESSetFromOptions()
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/ex35.c.html
src/ts/examples/tutorials/ex22.c.html