[petsc-users] Visualizing higher order finite element output in ParaView

[Jed Brown]

Matthew Knepley <knepley at gmail.com> writes:

> On Thu, Jan 30, 2025 at 9:43 AM Anna Dalklint <anna.dalklint at solid.lth.se>
> wrote:
>
>> Otherwise I’m fine with using CGNS. But could you please explain how I
>> could save timeseries that paraview recognizes using this format? Right now
>> I’m saving files e.g. file0001.cgns, file0002.cgns, … where each .cgns file
>> is written using VecView (i.e. it stores a discretized field). But paraview
>> cannot load this as a timeseries.
>>
>
> Jed can explain how this works.

You can use DMSetOutputSequenceNumber(dm, step, time) to make it collate correctly. Paraview can handle any combination of time steps within the same file (as -ts_monitor_solution cgns:sol.cgns) and sequenced files (each of which may contained one or more frames). You can open it with `paraview file..cgns` or in the interface.