On 3/8/2023 2:13 PM, Enzo Iubini wrote:
Thank you Steve!
My problem is: the simulation gifs of the Wave Equation and Heat
Equation notebooks on the tutorial folder are not showing correctly.
So I just clicked through the heat equation notebook. The cell that ends
with:
## play animation
from IPython.display import HTML
HTML(anim.to_html5_video()) #playback option 1
#HTML(anim.to_jshtml()) #playback option 2
Played an animation for me. Initially, there is a spike at the center of
the grid, and it evolves to become flat. (It also printed a deprecation
warning about the "close_event" function, whatever that is).
Did you click through to this cell or did you stop at the one before?
Because the one before it just displays a still image.
The WaveEquation also worked for me by just clicking through the cells
in order.
I'm trying to understand how Cactus works, so I ran every cell in the
notebook while looking at the Terminal and seeing how each file is
created and its contents.
The problem comes when I finally run the simulations, which take a while.
This happens in seconds for me.
So after the running is complete, there's this section called "Extract
data from hdf5 files".
The files exist, as I have previously checked, but the time steps
array is actually a [0,0] array in the heat equation, and a very
random array in the wave equation.
In both cases, when plotting the simulations, the solution does not
change from the initial condition.
Did you modify the cells from the original tutorial? Because this all
just worked for me.
I tried to open the data files to see if I could understand what was
going on but I'm unable to open these kind of files, and Cactus being
a black box leaves me helpless to see where the mistake is coming from.
So I disagree that Cactus is a black box since it is open source and the
purpose of these tutorials is to show how it works... but it's a very
big non-black box which can be overwhelming.
I think your problem is the hdf5 files, not Cactus. Hdf5 is a file
format that Cactus uses. You can open them with commands like h5ls, or
Python's h5py library (which the notebook provides some examples of usage).
I want to work on the problems at the end of these notebooks, but not
correctly seeing the solution makes me think there's something wrong
since the beggining, and I have not changed anything else from the
initial notebook.
So I'm not 100% sure what's going on, but I suspect you've either not
clicked far enough or you have modified the notebook. Please check and
let me know.
--Steve
Has this happened to anyone before?
I'm sorry for the long email, I'm very new to this software and
there's so much to learn! :-)
Thank you in advance.
- Enzo
El mié, 8 mar 2023 a las 14:02, Steven R. Brandt
(<[email protected]>) escribió:
You've come to the right place. What's the problem?
--Steve
On 3/7/2023 7:41 PM, Enzo Iubini wrote:
Hello!
Thank you for approving my tutorial account.
I have a small question. I'm having a bit of trouble with some
tutorial notebooks, in particular the Heat Equation and Wave
Equation notebooks, where the simulations are not running
properly. The question is, who can I contact to get support with
this? I would not want to bug you if this is not your job, but
I'm a little lost and got nobody to ask for help.
Thank you in advance.
Greetings!
Enzo Iubini
El lun, 5 dic 2022 a las 13:12, Steven R. Brandt
(<[email protected]>) escribió:
Approved. :)
--Steve
On 12/5/2022 9:53 AM, [email protected] wrote:
> Einstein Toolkit maintainers:
>
> New Tutorial Request:
> Name: http://orcid.org/0000-0001-9327-0832
> Email: [email protected]
> Organization: ORCID
> Why: Hello!
> My name is Enzo Iubini and I'm doing my Master's degree in
Applied Mathematics. I study at Universidad de Chile, and my
work is about binary black holes. My proffessor has
recommended me to try Einstein toolkit, but I'm having
trouble understanding how to work around it, therefore I'd
really like to have a tutorial account.
> I do not have a homepage.
>
> Thanks in advance!
>
>
> The above user has requested a tutorial account.
>
> Thanks,
> Einstein Toolkit Registration Bot
>
> _______________________________________________
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