[petsc-dev] SNES, Coloring, DM, and TS

[Barry Smith]

  I'm fine with that.

On Mar 3, 2012, at 8:06 PM, Jed Brown wrote:

> On Sat, Mar 3, 2012 at 18:51, Barry Smith <bsmith at mcs.anl.gov> wrote:
>  If no compute Jacobian routine was provided it just always uses the original matrix that was set into the SNESSetJacobian.  I can live with removing this feature, I agree it is a little dangerous.
> 
> What about making it explicit?
> 
> SNESSetJacobian(...,SNESDefaultComputeJacobianConstant,PETSC_NULL);
> 
> This routine would explicitly leave the Jacobian unchanged.