On Tue, May 16, 2017 at 7:22 PM, Mark Adams <[email protected]> wrote: > I am having problems with explicit + FEM. I set the DM with something like: > > ierr = DMTSSetRHSFunctionLocal(dm, DMPlexTSComputeRHSFunctionFVM, > &ctx);CHKERRQ(ierr); > > But DMPlexTSComputeRHSFunctionFVM calls DMPlexComputeResidual_Internal > without a "locX_t" so there is no time derivative and so the FEM point > functions do not get a time derivative (u_t). > > I'm not sure if I am missing something or if PETSc is missing this > functionality. >
Its missing. We will have to put in a DMPlexTSComputeRHSFunctionFEM(). Matt Mark > -- 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
