You can write a custom monitor and set it with TSMonitorSet()
This routine would call TSGetSNES() then SNESGetSolution() then call
SNESComputeFunction() then call VecView() on the result.
But note that just because the residual is big somewhere doesn’t mean the
error need be.
You could also run with -snes_monitor_residual to see how the residual is
being reduced inside the nonlinear solve (that is, what parts of the residual
are most stubborn).
Barry
On Mar 15, 2014, at 5:47 PM, Mani Chandra <[email protected]> wrote:
> Hi,
>
> Is there anyway I can VecView the residual after TS has completed an implicit
> time step? I'd like to see where in my domain most of the errors are coming
> from. I looked at TSMonitor but that doesn't seem to give me access to the
> residual at the end of the current time step.
>
> Thanks,
> Mani
