petsc-3.12.5 2020-03-29

SNESSetDM

Sets the DM that may be used by some nonlinear solvers or their underlying preconditioners

Synopsis

#include "petscsnes.h"  
PetscErrorCode  SNESSetDM(SNES snes,DM dm)

Logically Collective on SNES

Input Parameters

	snes	- the nonlinear solver context
	dm	- the dm, cannot be NULL

Notes

A DM can only be used for solving one problem at a time because information about the problem is stored on the DM, even when not using interfaces like DMSNESSetFunction(). Use DMClone() to get a distinct DM when solving different problems using the same function space.

Level

intermediate

Location

src/snes/interface/snes.c

Examples