# Install NVidia driver and cuda on ubuntu

[HiPac 3 Release Note and informations](https://hackmd.io/2deAUP8zQ-u1giVioCOdaQ)

Remove current cuda + Nvidia driver

sudo apt-get purge '^nvidia-.*'
sudo apt-get autoremove

sudo apt-get purge '^cuda-.*'
sudo apt-get purge '^libcuda-.*'
sudo apt-get autoremove

sudo rm -rf /usr/local/cuda*
sudo rm -rf /usr/local/cuda
sudo rm -rf /usr/local/cuda-*
sudo rm -rf /etc/systemd/system/nvidia*
sudo rm -rf /var/lib/dkms/nvidia*

sudo rm -rf /usr/share/doc/nvidia*
sudo rm -rf /usr/share/man/man1/nvidia*

#update ram
sudo update-initramfs -u

Verify Cuda + Nvidia driver is deleted

dpkg -l | grep nvidia
dpkg -l | grep cuda

Check for available Nvidia driver

ubuntu-drivers devices

Check the version that cuda toolkit require.
[imgsrc](https://docs.nvidia.com/cuda/cuda-toolkit-release-notes/index.html)

After you know the Hardware Generation, go to [here](https://docs.nvidia.com/deploy/cuda-compatibility/index.html) and find a matrix under this article `Which GPUs are supported by the driver?`, find `Current Minimum Driver in Support` (or ctrl + f and type in `Current Minimum Driver in Support`), do not download driver lower than that.

sudo apt install nvidia-driver-535

Verify Nvidia driver installation

nvidia-smi

If failed, reboot and try again.

sudo reboot

:::info
`nvidia-smi`

+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 555.58.02              Driver Version: 555.58.02      CUDA Version: 12.5     |
|-----------------------------------------+------------------------+----------------------+
| 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  NVIDIA xxxxxxxxxxxx ...    Off |   00000000:01:00.0 Off |                  N/A |
| N/A   40C    P0             23W /  115W |      15MiB /   8192MiB |      0%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+
                                                                                         
+-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI        PID   Type   Process name                              GPU Memory |
|        ID   ID                                                               Usage      |
|=========================================================================================|
|    0   N/A  N/A      3099      G   /usr/lib/xorg/Xorg                              4MiB |
+-----------------------------------------------------------------------------------------+

:::
:::info

dpkg -l | grep nvidia
dpkg -l | grep cuda

ii  nvidia-firmware-560-560.35.03                    560.35.03-0ubuntu0~gpu24.04.4             amd64        Firmware files used by the kernel module
ii  nvidia-kernel-common-560                         560.35.03-0ubuntu0~gpu24.04.4             amd64        Shared files used with the kernel module
ii  nvidia-kernel-source-560                         560.35.03-0ubuntu0~gpu24.04.4             amd64        NVIDIA kernel source package
ii  nvidia-prime                                     0.8.17.2                                  all          Tools to enable NVIDIA's Prime

Make sure there are only 1 NVidia driver (`libnvidia-compute-*:amd64` doesn't matter).
:::

Cuda Download at [here](https://developer.nvidia.com/cuda-toolkit-archive)..

Choose the version `nvidia-smi` say (12.6).

Select `runfile(local)`, don't choose `deb(local)`, it will install other driver for you, which make the problem of two driver on same machine.


Uncheck `Driver` option by `Enter` and `up arrow` `down arrow` for choose.

Add environment variable
:::success
`vim ~/.bashrc`

export PATH=/usr/local/cuda/bin${PATH:+:${PATH}}
export LD_LIBRARY_PATH=/usr/local/cuda/lib64${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}

:::
`source ~/.bashrc`
:::info
Verify cuda installation
`nvcc --version`

nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2024 NVIDIA Corporation
Built on Tue_Oct_29_23:50:19_PDT_2024
Cuda compilation tools, release 12.6, V12.6.85
Build cuda_12.6.r12.6/compiler.35059454_0

:::