NVIDIA Collective Communications Library (NCCL) Download Page

The NVIDIA NCCL download page is the distribution hub for the NVIDIA Collective Communications Library (NCCL), a library that implements multi-GPU and multi-node collective communication primitives optimized for NVIDIA GPUs. Downloads are provided for both x86 and ARM architectures, and support a range of Linux distributions including Ubuntu, Debian, and RedHat/CentOS.

Documentation Archived Versions

Download NCCL 2.32.3, for CUDA 13.4, September 22, 2026

Local installers (x86)

Network installers (x86)

If not already done, make sure you install the network repository:

Network Installer for SLES15

sudo zypper addrepo https://developer.download.nvidia.com/compute/cuda/repos/suse16/x86_64/cuda-suse16.repo
sudo zypper refresh
sudo zypper install -y cuda-toolkit-13-4

Network Installer for SLES16

sudo zypper addrepo https://developer.download.nvidia.com/compute/cuda/repos/suse16/x86_64/cuda-suse16.repo
sudo zypper refresh
sudo zypper install -y cuda-toolkit-13-4

Network Installer for Amazon Linux 2023

sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/amzn2023/x86_64/cuda-amzn2023.repo
sudo dnf clean all
sudo dnf -y install cuda-toolkit-13-4

Network Installer for Azure Linux

curl https://developer.download.nvidia.com/compute/cuda/repos/azl3/x86_64/cuda-azl3.repo | sudo tee /etc/yum.repos.d/cuda-azl3.repo
sudo tdnf -y install azurelinux-repos-extended
sudo tdnf clean all
sudo tdnf -y install cuda-toolkit-13-4

Network Installer for Deb13

$ wget https://developer.download.nvidia.com/compute/cuda/repos/debian13/x86_64/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Deb12

$ wget https://developer.download.nvidia.com/compute/cuda/repos/debian12/x86_64/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Ubuntu 26.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2604/x86_64/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Ubuntu 24.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/x86_64/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Ubuntu 22.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for RedHat/CentOS 10

$ sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/rhel10/x86_64/cuda-rhel10.repo

Network Installer for RedHat/CentOS 9

$ sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/rhel9/x86_64/cuda-rhel9.repo

Network Installer for RedHat/CentOS 8

$ sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/rhel8/x86_64/cuda-rhel8.repo

then run the following command to install NCCL:
For Ubuntu/Deb12/Deb13: sudo apt install libnccl2=2.32.3-1+cuda13.4 libnccl-dev=2.32.3-1+cuda13.4
For RHEL/Centos: sudo yum install libnccl-2.32.3-1+cuda13.4 libnccl-devel-2.32.3-1+cuda13.4 libnccl-static-2.32.3-1+cuda13.4
For SLES 15/16: sudo zypper install libnccl=2.32.3-1+cuda13.4 libnccl-devel=2.32.3-1+cuda13.4 libnccl-static=2.32.3-1+cuda13.4
For Amazon Linux: sudo dnf install libnccl-2.32.3-1+cuda13.4 libnccl-devel-2.32.3-1+cuda13.4 libnccl-static-2.32.3-1+cuda13.4
For Azure Linux: sudo tdnf install libnccl-2.32.3-1+cuda13.4 libnccl-devel-2.32.3-1+cuda13.4 libnccl-static-2.32.3-1+cuda13.4

Local installers (ARM)

Network installers (ARM)

If not already done, make sure you install the network repository:

Network Installer for SLES15

sudo zypper addrepo https://developer.download.nvidia.com/compute/cuda/repos/sles15/sbsa/cuda-sles15.repo
sudo zypper refresh
sudo zypper install -y cuda-toolkit-13-4

Network Installer for SLES16

sudo zypper addrepo https://developer.download.nvidia.com/compute/cuda/repos/suse16/sbsa/cuda-suse16.repo
sudo zypper refresh
sudo zypper install -y cuda-toolkit-13-4

Network Installer for Amazon Linux 2023

sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/amzn2023/sbsa/cuda-amzn2023.repo
sudo dnf clean all
sudo dnf -y install cuda-toolkit-13-4

Network Installer for Azure Linux

curl https://developer.download.nvidia.com/compute/cuda/repos/azl3/sbsa/cuda-azl3.repo | sudo tee /etc/yum.repos.d/cuda-azl3.repo
sudo tdnf -y install azurelinux-repos-extended
sudo tdnf clean all
sudo tdnf -y install cuda-toolkit-13-4

Network Installer for Deb13

$ wget https://developer.download.nvidia.com/compute/cuda/repos/debian13/sbsa/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Deb12

$ wget https://developer.download.nvidia.com/compute/cuda/repos/debian12/sbsa/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Ubuntu 26.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2604/sbsa/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Ubuntu 24.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/sbsa/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Ubuntu 22.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/sbsa/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for RedHat/CentOS 10

$ sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/rhel10/sbsa/cuda-rhel10.repo

Network Installer for RedHat/CentOS 9

$ sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/rhel9/sbsa/cuda-rhel9.repo

Network Installer for RedHat/CentOS 8

$ sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/rhel8/sbsa/cuda-rhel8.repo

then run the following command to install NCCL:
For Ubuntu/Deb12/Deb13: sudo apt install libnccl2=2.32.3-1+cuda13.4 libnccl-dev=2.32.3-1+cuda13.4
For RHEL/Centos: sudo yum install libnccl-2.32.3-1+cuda13.4 libnccl-devel-2.32.3-1+cuda13.4 libnccl-static-2.32.3-1+cuda13.4
For SLES 15/16: sudo zypper install libnccl=2.32.3-1+cuda13.4 libnccl-devel=2.32.3-1+cuda13.4 libnccl-static=2.32.3-1+cuda13.4
For Amazon Linux: sudo dnf install libnccl-2.32.3-1+cuda13.4 libnccl-devel-2.32.3-1+cuda13.4 libnccl-static-2.32.3-1+cuda13.4
For Azure Linux: sudo tdnf install libnccl-2.32.3-1+cuda13.4 libnccl-devel-2.32.3-1+cuda13.4 libnccl-static-2.32.3-1+cuda13.4

Download NCCL 2.32.3, for CUDA 12.9, September 22, 2026

Local installers (x86)

Network installers (x86)

If not already done, make sure you install the network repository:

Network Installer for Ubuntu 24.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/x86_64/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Ubuntu 22.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/x86_64/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Ubuntu 20.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for RedHat/CentOS 9

$ sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/rhel9/x86_64/cuda-rhel9.repo

Network Installer for RedHat/CentOS 8

$ sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/rhel8/x86_64/cuda-rhel8.repo

then run the following command to install NCCL:
For Ubuntu: sudo apt install libnccl2=2.32.3-1+cuda12.9 libnccl-dev=2.32.3-1+cuda12.9
For RHEL/Centos: sudo yum install libnccl-2.32.3-1+cuda12.9 libnccl-devel-2.32.3-1+cuda12.9 libnccl-static-2.32.3-1+cuda12.9

Local installers (ARM)

Network installers (ARM)

If not already done, make sure you install the network repository:

Network Installer for Ubuntu 24.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/sbsa/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Ubuntu 22.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2204/sbsa/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for Ubuntu 20.04

$ wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/sbsa/cuda-keyring_1.1-1_all.deb
$ sudo dpkg -i cuda-keyring_1.1-1_all.deb
$ sudo apt-get update

Network Installer for RedHat/CentOS 9

$ sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/rhel9/sbsa/cuda-rhel9.repo

Network Installer for RedHat/CentOS 8

$ sudo dnf config-manager --add-repo https://developer.download.nvidia.com/compute/cuda/repos/rhel8/sbsa/cuda-rhel8.repo

then run the following command to install NCCL:
For Ubuntu: sudo apt install libnccl2=2.32.3-1+cuda12.9 libnccl-dev=2.32.3-1+cuda12.9
For RHEL/Centos: sudo yum install libnccl-2.32.3-1+cuda12.9 libnccl-devel-2.32.3-1+cuda12.9 libnccl-static-2.32.3-1+cuda12.9

Additional Resources

NVIDIA Collective Communications Library (NCCL) Download Page

Download NCCL 2.32.3, for CUDA 13.4, September 22, 2026

Local installers (x86)

Network installers (x86)

Local installers (ARM)

Network installers (ARM)

Download NCCL 2.32.3, for CUDA 12.9, September 22, 2026

Local installers (x86)

Network installers (x86)

Local installers (ARM)

Network installers (ARM)

Additional Resources

Read Blogs

Archived Versions

MultiGPU + NCCL from the authors