Re: [petsc-users] Example for adaptive high-order FEM in PETSc

2019-01-13 Thread Mark Adams via petsc-users
> > > > > The Riemann solver computes the flux and the Jacobian is assembled in > PETSc. > > If you run this example with an implicit integrator, it uses FD coloring > to compute the Jacobian. Manav wants an analytic Jacobian. I was > hoping Matt could answer this; I haven't used Plex in that

Re: [petsc-users] Example for adaptive high-order FEM in PETSc

2019-01-13 Thread Jed Brown via petsc-users
Mark Adams via petsc-users writes: >> The following is still unclear and I would appreciate some guidance: >> >> — A implicit DG solve of the inviscid Euler equations would require >> Jacobian contributions from the Riemann Solver at element interfaces. I do >> not see the ability to define

Re: [petsc-users] Example for adaptive high-order FEM in PETSc

2019-01-13 Thread Mark Adams via petsc-users
On Sat, Jan 12, 2019 at 6:59 PM Manav Bhatia via petsc-users < petsc-users@mcs.anl.gov> wrote: > I have been studying the source code and the manual entries in the > documentation and have a better understanding of setting up a high-order DG > analysis. > > I have been able to identify the