[FLASH-USERS] output files: Getting started guide?

[Leland Ellison]

Another good option for visualizing FLASH output is VisIt:
https://visit-dav.github.io/visit-website/index.html

One hiccup you might encounter is an error when attempting to open FLASH
files using the default VisIt settings. You can remedy this with either:
(i) In the Open File menu, look for the  "Open file as type" box and
choose: FLASH (If this fails, try restarting VisIt. Once the above error
happens it seems to perpetually fail even if you specify the file type.)
(ii) If you're launching VisIt from the command line, add the
argument: -assume_format FLASH

Best,
Lee

On Fri, Oct 6, 2023 at 6:27 AM Ryan Farber <rjfarber at umich.edu> wrote:

> Hi Joe,
>
> 8x8 refers to the number of cells per block.
> The 53 probably refers to the number of blocks.
> Additional details might be in the FLASH user guide.
>
> I'd recommend just using yt. yt is for analysis as well as visualization.
>
> Best,
> --------
> Ryan
>
>
> On Thu, Oct 5, 2023 at 8:05 PM Joe Frisch <joseffrisch at google.com> wrote:
>
>> Just getting started with FLASH just got the sedov code (with the default
>> parameters) to run, trying to understand the output files.  For example
>> there is a hdf5 output file sedov_hdf5_plt_cnt_0000
>>
>> That contains grid data in 'coordinates"  which has 53 x,y,z locations
>>
>> There is also "pres' (presumably pressure) , 'temp"
>> (presumably temperature)  and desdata.
>>
>> Those objects are 4-dimensional:   [53,1,8,8]
>> where is that defined / described?
>> The 53 presumably maps onto the 53 plot coordinates.  But 8X8??  Those
>> seem to be either initial or final state, but not in a pattern I can
>> decypher
>>
>> Is the plot file format , or more specifically the fields in the plot
>> file defined somewhere?
>>
>> Maybe this is the wrong approach and I should just use yt?   does yt
>> provide access to all the data for analysis or is it just a plotting tool?
>>
>>
>>
>>
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>>
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