[aspect-devel] More vtu problems

[Lev Karatun]

Thanks everyone for the answers!

John, I'm only opening a single file. As a small test, I closed most apps
so that I only had 3/16 GB used, then opened one timestep file. Memory
consumption spiked to 10.7GB. Then, when I tried to plot the velocities, it
crashed. So I guess Timo might be right, paraview may be going OOM.

Felipe, I tried switching to just outline for the actual model, and
plotting every 10000th velocity vector, it still crashed.

Quite frustrating not to be able to work with a single 300MB file on a 16
GB laptop.

Best regards,
Lev Karatun.

2017-08-02 15:05 GMT-04:00 John Naliboff <jbnaliboff at ucdavis.edu>:

> Hi Lev,
>
> When you open the paraview view file are you opening the solution.pvd file
> (loads all time steps) or the individual time steps (.pvtu files)
> separately?
>
> If you are opening the solution.pvd file, I would be curious to see if the
> error occurs for the same time steps if you only load the single .pvtu
> file. This would at least help pin-point if this is a "paraview" problem,
> rather than something inherent with the files themselves.
>
> My first guess would have been that you ran out of memory as well, but
> that is clearly not the case. I have had paraview crashes on my laptop (16
> Gb) with large models and large amounts of output data, but I don't
> remember the exact error messages.
>
> Cheers,
> John
>
> *************************************************
> John Naliboff
> Assistant Project Scientist, CIG
> Earth & Planetary Sciences Dept., UC Davis
>
> On 08/02/2017 11:21 AM, Lev Karatun wrote:
>
> Hi,
>
> I ran into more problems trying to open vtu files. This time I used the
> option "number of grouped files = 1", and the output file opened without
> errors, but when I try to visualize the velocity using glyphs in Paraview,
> it crashes. It doesn't crash on a couple of first output files, only on the
> later ones. I attached the screenshot with error message. It's paraview 4
> on the screenshot, but I tried the earliest version with little luck.
> I tried doing the same in Visit, it didn't crash, but produced an error
> and didn't plot velocities either.
> I also tried checking the vtu file for NULL characters. Obviously I can't
> check a 300 mb file with bare eye, but I tried doing
> *tr < solution-00004.vtu -d '\000' > sol-04*
> and there was no difference between the original file and output of tr. I
> tried the same command the files I had problems with earlier, and there was
> difference, so I assume the command is correct.
> From the error message, I thought maybe Paraview ran out of memory, but I
> actually still have about about 4GB free. Also, the problem persists when I
> open a single 300mb file, which I successfully did many times in the past.
>
> If someone has any ideas on how to solve this, I would appreciate it.
>
> Best regards,
> Lev Karatun.
>
>
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