On Tue, Aug 11, 2015 at 3:25 PM, Matthew Knepley <[email protected]> wrote:
> On Tue, Aug 11, 2015 at 2:10 PM, Mani Chandra <[email protected]> wrote: > >> Hi, >> >> Is there an example where Petsc's SNES has been used with Chombo, and >> perhaps with an automatic Jacobian assembly? I'd like to know if Petsc can >> pick out the number of colors of a Chombo data structure like it can do >> with a DMDA. >> > > The specific kinds of colorings for structured grids also assume a > colocated discretization which > I am not sure Chombo uses. However, the greedy colorings which only use > the matrix will work. > Chombo (me) creates an MPIAIJ matrix. So automatic Jacobian assembly should work. I have put a SNES in a Chombo code, but did not use automatic Jacobian assembly. Mark > > Thanks, > > Matt > > >> Thanks, >> Mani >> > > > > -- > What most experimenters take for granted before they begin their > experiments is infinitely more interesting than any results to which their > experiments lead. > -- Norbert Wiener >
