# ParaView 5.9 RC2 NVIDIA Optix Pathtracer
**URL:** https://discourse.paraview.org/t/paraview-5-9-rc2-nvidia-optix-pathtracer/6031
**Category:** ParaView Support
**Created:** [December 10, 2020, 7:34pm UTC](https://discourse.paraview.org/t/paraview-5-9-rc2-nvidia-optix-pathtracer/6031 "2020-12-10T19:34:48Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@danlipsa](https://discourse.paraview.org/u/danlipsa)
#### Post date: [December 10, 2020, 7:34pm UTC](https://discourse.paraview.org/t/paraview-5-9-rc2-nvidia-optix-pathtracer/6031/1 "2020-12-10T19:34:48Z")
Hi all,
ParaView 5.8 RC2 binary does not enable NVIDIA Optix on my Ubuntu 18.04. It does work with ParaView 5.8.1 binary.
It might be related to an error I see for nvidia-smi, but as I said it does work for ParaView 5.8.1 binary.
Here is the output for nvidia-smi:
[~/external/ParaView-5.8.1-MPI-Linux-Python3.7-64bit]$ nvidia-smi
/usr/bin/nvidia-modprobe: unrecognized option: “-s”
ERROR: Invalid commandline, please run `/usr/bin/nvidia-modprobe --help` for usage information.
/usr/bin/nvidia-modprobe: unrecognized option: “-s”
ERROR: Invalid commandline, please run `/usr/bin/nvidia-modprobe --help` for usage information.
Thu Dec 10 14:33:56 2020
±----------------------------------------------------------------------------+
| NVIDIA-SMI 450.80.02 Driver Version: 450.80.02 CUDA Version: 11.0 |
|-------------------------------±---------------------±---------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 Quadro M4000 Off | 00000000:03:00.0 On | N/A |
| 49% 47C P0 44W / 120W | 394MiB / 8104MiB | 2% Default |
| | | N/A |
±------------------------------±---------------------±---------------------+
±----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| 0 N/A N/A 3437 G /usr/lib/xorg/Xorg 123MiB |
| 0 N/A N/A 3577 G /usr/bin/gnome-shell 116MiB |
| 0 N/A N/A 5316 C /usr/NX/bin/nxnode.bin 85MiB |
| 0 N/A N/A 13881 G …AAAAAAAA== --shared-files 59MiB |
±----------------------------------------------------------------------------+
[~/external/ParaView-5.8.1-MPI-Linux-Python3.7-64bit]$
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [December 11, 2020, 5:47pm UTC](https://discourse.paraview.org/t/paraview-5-9-rc2-nvidia-optix-pathtracer/6031/2 "2020-12-11T17:47:51Z")
Hi Dan,
Could you make this an issue on the issue tracker? Otherwise I’m afraid we might lose track of it.
Thanks,
Cory
---
### Author:  [@danlipsa](https://discourse.paraview.org/u/danlipsa)
#### Post date: [December 11, 2020, 7:20pm UTC](https://discourse.paraview.org/t/paraview-5-9-rc2-nvidia-optix-pathtracer/6031/3 "2020-12-11T19:20:49Z")
Hi Cory,
Here you are:
[https://gitlab.kitware.com/paraview/paraview/-/issues/20384](https://gitlab.kitware.com/paraview/paraview/-/issues/20384)
---
### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [December 11, 2020, 8:34pm UTC](https://discourse.paraview.org/t/paraview-5-9-rc2-nvidia-optix-pathtracer/6031/4 "2020-12-11T20:34:22Z")
Thanks!