[FLASH-USERS] FLASH VisIt Visualization - Question

[Ryan Farber]

Howdy :)

I'm not sure about visit.
But you can use yt: https://yt-project.org/

It's as easy as
1. pip install yt

2.
#!/bin/python3
import yt; yt.enable_parallelism()
ds = yt.load("PATH/TO/FILE")
yt.SlicePlot(ds, "z", "density", origin="native").save()

3.
mpirun -np 512 name_of_yt_script.py

Best wishes,
--------
Ryan


On Thu, Jul 11, 2024 at 2:50 PM Dammati, Sai Sandeep <
saisandeepdammati at uconn.edu> wrote:

> Howdy!
>
>
>
> I am a new user to FLASH. I am planning to run a 2D simulation with *half
> a million meshblocks* with a fixed *size of 64x64x1* cells using
> Paramesh. I plan to use FLASH’s HDF5 format for visualization in VisIt.
> From a visualization standpoint, I want to know how many output files per
> frame do I need to write the HDF5 output so that I can comfortably
> visualize the simulation data in VisIt using the FLASH database plugin.
>
>
>
> I have previously tried a 2D sod problem with 130760 meshblocks (of fixed
> size 64x64 cells) and tried to write a *single output file*, however,
> when I tried to visualize this single output file in VisIt 3.3.2 using the
> FLASH plugin with 512 cores, the file opens but when I do a simple
> pseudocolor of density, it just hangs and never renders the plot.
>
>
>
> Can you please provide me some input on how to visualize large HDF5
> datasets from FLASH in VisIt?
>
>
>
> Thank you very much.
>
>
>
>
>
> With Regards,
>
> Sai Sandeep Dammati, Ph.D.,
>
> Postdoctoral Research Associate,
>
> School of Mechanical, Aerospace, and Manufacturing Engineering,
>
> University of Connecticut,
>
> Storrs, CT – 06269.
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>
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>
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