# ParaView Nvidia IndeX: how to assign GPU for CPU

**URL:** https://discourse.paraview.org/t/paraview-nvidia-index-how-to-assign-gpu-for-cpu/5677
**Category:** ParaView Support
**Created:** [October 29, 2020, 4:17am UTC](https://discourse.paraview.org/t/paraview-nvidia-index-how-to-assign-gpu-for-cpu/5677 "2020-10-29T04:17:09Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![sharon](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/s/67e7ee/32.png) [@sharon](https://discourse.paraview.org/u/sharon)
#### Post date: [October 29, 2020, 4:17am UTC](https://discourse.paraview.org/t/paraview-nvidia-index-how-to-assign-gpu-for-cpu/5677/1 "2020-10-29T04:17:10Z")

</div>

Dear Experts,  
I am testing Nvidia Index with 16 cpus and only 8 GPU: default, seems it treat one GPU per CPU, and try to find GPU 8 - 15…

I want to use command line option: “–displays=0,1,2,3,4,5,6,7” to tell there are only 8 GPUs, but it seems useless…

seems, all GPUs on the node are used default, but I really need control how many GPU can be controlled in my program.

Could you please help!