DMSNESSetJacobian

set SNES Jacobian evaluation function into a DMSNES object

Synopsis

#include "petscsnes.h" 
#include "petscdm.h" 
PetscErrorCode DMSNESSetJacobian(DM dm, SNESJacobianFn *J, void *ctx)

Not Collective

Input Parameters

• dm - DM to be used with SNES

• J - Jacobian evaluation function, see SNESJacobianFn

• ctx - context for Jacobian evaluation

Note

SNESSetJacobian() is normally used, but it calls this function internally because the user context is actually associated with the DM.

Developer Note

This makes the interface consistent regardless of whether the user interacts with a DM or not. If DM took a more central role at some later date, this could become the primary method of setting the Jacobian.

See Also

SNES: Nonlinear Solvers, DMSNES, DMSNESSetContext(), SNESSetFunction(), DMSNESGetJacobian(), SNESSetJacobian(), SNESJacobianFn

Level

developer

Location

src/snes/utils/dmsnes.c

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Index of all SNES routines
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Index of all manual pages