# Crashes - model size dependent

**URL:** https://discourse.paraview.org/t/crashes-model-size-dependent/2055
**Category:** Development
**Created:** [June 16, 2019, 3:43pm UTC](https://discourse.paraview.org/t/crashes-model-size-dependent/2055 "2019-06-16T15:43:59Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![cobo](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/c/f17d59/32.png) [@cobo](https://discourse.paraview.org/u/cobo)
#### Post date: [June 16, 2019, 3:43pm UTC](https://discourse.paraview.org/t/crashes-model-size-dependent/2055/1 "2019-06-16T15:43:59Z")

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My models are typically “unstructured grids”, and “normally” I assume that with a 64-bit architecture it should be possible to work with models that are many millions, tens of millions or even hundreds of cells and/or points. Except for the fact that with a given processor and depending on the operations this will of course be very slow…

But now I found some kind of “empirical limit” at a model size of about 10 million cells, or something like 20 million cells plus points. Not a precise limit so far - also because testing takes a lot of time! With larger models I have crashes, not only with my own customized “Paraview derivative”, but also with “original” Paraview 5.6.

However, today I managed to have one such crash happening in the debugger - because on Sunday my computer had nothing else to do. And the location where it happens is exactly here:

 ![grafik](https://discourse.paraview.org/uploads/default/original/2X/a/a2e9a9bdd188c7e279e66d9f1ee06f90f185d857.png)

My conclusion is: The crash is due to limitations of the graphic card (in a Windows 10 environment).

Do others agree with this?

For me this is mostly a case of “good to know in case the users have problems”, because I am already telling users most of the time that they tend to go for too many too small cells - in order to do it “really good” - and not considering the much lower precision of their input data.