# Saving data for large amount of time steps

**URL:** https://discourse.paraview.org/t/saving-data-for-large-amount-of-time-steps/285
**Category:** ParaView Support
**Created:** [July 7, 2018, 6:12am UTC](https://discourse.paraview.org/t/saving-data-for-large-amount-of-time-steps/285 "2018-07-07T06:12:24Z")
**Posts on this page:** 5
**Page:** 1

<div class="post-metadata">

### Author: ![Wentao](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/w/a9adbd/32.png) [@Wentao](https://discourse.paraview.org/u/Wentao)
#### Post date: [July 7, 2018, 6:12am UTC](https://discourse.paraview.org/t/saving-data-for-large-amount-of-time-steps/285/1 "2018-07-07T06:12:24Z")

</div>

Dear all,  
I want to save 200000 2D snapshot CSV data from 200000 3D array files. I added a slice and showed the spreadsheet of the data for the slice. Then I click File-\>save data and I click write all time steps. See below.

 ![image](https://discourse.paraview.org/uploads/default/original/1X/119443800a1d144032776c923815a7e31cf6eea3.png)  
Then Paraview starts to save CSV files. Due to the huge amount of files I need to save. Paraview is killed after it saved 8853 CSV files. Maybe it is due to the leak of memory.  
The version of Paraview I used is 3.14.1. Could anybody tell me how I can save the 200000 files without Paraview being killed?  
Best regards,  
Wentao Guo

---

<div class="post-metadata">

### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [July 9, 2018, 1:31am UTC](https://discourse.paraview.org/t/saving-data-for-large-amount-of-time-steps/285/2 "2018-07-09T01:31:30Z")

</div>

3.14.1 is a very old version of ParaView so here is what I would do in your situation :

- Try with the last release of ParaView 5.5.2 (and keep using it, you are missing lots of features and bugfixes)
- If bug is still present, build paraview in debug and figure out what is causing the bug (leak ? max int ?) and see if it can be fixed.
- If it cannot be fixed, instead of working in the GUI with 200000 files, write a pvpython scripts to process your file by batch of 5000.

Le me know if you need help with any of this steps.

---

<div class="post-metadata">

### Author: ![Wentao](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/w/a9adbd/32.png) [@Wentao](https://discourse.paraview.org/u/Wentao)
#### Post date: [July 9, 2018, 6:33pm UTC](https://discourse.paraview.org/t/saving-data-for-large-amount-of-time-steps/285/3 "2018-07-09T18:33:21Z")

</div>

Thanks. I will follow your suggestions.

---

<div class="post-metadata">

### Author: ![Someone\_fromjapan](https://discourse.paraview.org/user_avatar/discourse.paraview.org/someone_fromjapan/32/2892_2.png) [@Someone\_fromjapan](https://discourse.paraview.org/u/Someone_fromjapan)
#### Post date: [July 11, 2018, 4:13am UTC](https://discourse.paraview.org/t/saving-data-for-large-amount-of-time-steps/285/4 "2018-07-11T04:13:02Z")

</div>

And I would recommend using Linux version, because I have a lot of problems with large arrays in 5.x.x compiled for Windows. And no such bugs in Linux build. Personally, when I was using 3.x 2 years ago, it was much more stable under Win

---

<div class="post-metadata">

### Author: ![Wentao](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/w/a9adbd/32.png) [@Wentao](https://discourse.paraview.org/u/Wentao)
#### Post date: [July 13, 2018, 9:28pm UTC](https://discourse.paraview.org/t/saving-data-for-large-amount-of-time-steps/285/5 "2018-07-13T21:28:18Z")

</div>

Thanks. What I’m using now is the Linux version.