Les transient simulation (loading)
 

Dear colleagues;
I am trying to load transient results from a our LES code. At this stage I only have 141 files of 65 MB ( each file). Every time I try to load them it says that more memory is needed (or something like this). So I was wondering about the computational resources for LES simulation and TECPLOT. The computer only have 4 GB RAM. I thought it was more than enough..!!!

Julio,

I have a couple questions – is the total size of all your files 65 MB, or is each file 65 MB (and so 141 x 65 = 9165 MB or 9.165 GB)?

What version of Tecplot are you using? You can down load the latest version of 360 EX here: http://www.tecplot.com/my/product-releases/ .

BTW … the fact that your solution is an LES type should not be an issue.

Scott

Dear Mr. Scott;
I really appreciate your comment. thank you very much.
When I sayd LES, I just wanted to refer to big data that need to be load. LES usually have thousand or even million of files, depending on the physics.
The size o each file is 65 MB, but I think that the memory required to load all the data is not 9.1 GB. Otherwise, loading large files, as it is usually in LES and DNS, may not be possible.
What do you think?
I am using the standard approach; I changed the extension to .plt. Then I loaded multiple file and that's it.... How do you usually load big transient data sets?

Thanks!!!
Julio

To load a big transient data set, I believe you will need to have enough RAM to hold entire transient solution (as Tecplot 360 assumes you will want to investigate the entire solution during one post-processing session).

Since that is not your situation, one alternative to create an animation of the date would be to create a Tecplot macro that:
1. opens Tecplot 360
2. loads a time step
3. creates the image or view desired via a saved “style sheet”
4. exports that image to an uniquely named image file, e.g. time_step_01.jpg
5. closes Tecplot 360 (or discards the data before loading the next time step) and repeat

Then the next step would be to stitch the *.jpg images together to create an animation via a non-Tecplot image editing program. I do not have a recommendation for this editing/stitching program.

Scott

Dear Mr. Scott I really appreciate your comments, thank you very much.
Are these macro written directly in Tecplot? I assume that this is in C++
I was wondering about other research groups who work with huge data sets!!!
I will read about the macro you mention!!!

Thanks!

The macro is written directly in Tecplot. Here a couple links to the Tecplot web-site to help you with this:
http://www.tecplot.com/blog/2014/09/24/360video-quick-macro-panel/
http://www.tecplot.com/blog/2013/09/24/tecplot-tip-file-types-and-an-example-macro/
Scott

Thank you very much Mr. Scott!!
I appreciate it!