petsc-master 2019-10-18
Report Typos and Errors

SNESGetNPC

Creates a nonlinear preconditioning solver (SNES) to be used to precondition the nonlinear solver.

Synopsis

#include "petscsnes.h"  
PetscErrorCode SNESGetNPC(SNES snes, SNES *pc)
Not Collective; but any changes to the obtained SNES object must be applied collectively

Input Parameter

snes -iterative context obtained from SNESCreate()

Output Parameter

pc -preconditioner context

Options Database

-npc_snes_type <type> -set the type of the SNES to use as the nonlinear preconditioner

Notes

If a SNES was previously set with SNESSetNPC() then that SNES is returned, otherwise a new SNES object is created.

The (preconditioner) SNES returned automatically inherits the same nonlinear function and Jacobian supplied to the original SNES during SNESSetUp()

See Also

SNESSetNPC(), SNESHasNPC(), SNES, SNESCreate()

Level

developer

Location

src/snes/interface/snes.c

Examples

src/snes/examples/tutorials/ex35.c.html

Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages