[Users] Visualizing Carpet Multipatch (Llama) data

[Haas, Roland]

Hello Severin,

to visualize the multipatch data with VisIt you need to output the
coordinates as well as the actual data. Adding something like:

CarpetIOHDF5::out_vars = "grid::coordinates{out_every=1000000000}"

does the trick. The out_every option means that the coordinates are
output only every 1 billion time steps, which in practise means only
once at timestep 0 (they never change and VisIt will use the one from
timestep 0 for all times).

If you simulation already finished you can just run it once more for 1
step to have it output the coordinates.

Other tools most likely need similar data.

Yours,
Roland

> Dear all,
> 
> I compute some multipatch grid simulations with the ET using Llama (Cartesian grid in the center surrounded by a spherical one, "Thornburg04") .
> 
> My output is for example /CarpetIOHDF5::out3D_vars = "H//ydroBase::rho"/
> 
> However, I have problems visualizing the multipatch grid data That's why I would like to know if someone has experience on visualizing those kind of data?
> 
> My first attempt was to use VISIT (gui2.13.2) but it worked only for the Cartesian part so far. Although the software recognizes the outer part as "Carpet Multipatch", it is not able to anything with it:
> 
> /"The compute engine running on (...) has exited abnormally./
> 
> //
> 
> //
> 
> //
> 
> /Shortly thereafter, the following occured.../
> 
> //
> 
> //
> 
> //
> 
> /The Mesh plot of "Carpet Multipatch" for the file "(..).file_* database" could not be generated by the compute engine on host "localhost"./
> 
> Does anyone knows a solution for this kind of problem or would you recommend to use something else (e.g. Pyplot)?
> 
> Thanks a lot!
> 
> Best regards,
> 
> Severin Frank
> 



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