Debian 13 Trixie environments release notes: Difference between revisions

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Note some “old” Nvidia GPU clusters use a new dédicated environment named debian'''nvlegacy'''13-big and debian'''nvlegacy'''13-std (default). The only change in this environment flavor is that the proprietary nvidia module kernel is used, instead of the more recent open source one, as it is mandatory for Nvidia GPU Compute Capability < 7.5 .
Note some “old” Nvidia GPU clusters use a new dedicated environment named debian'''nvlegacy'''13-big and debian'''nvlegacy'''13-std (default). The only change in this environment flavor is that the proprietary nvidia module kernel is used, instead of the more recent open source one, as it is mandatory for Nvidia GPU Compute Capability < 7.5 .


For more informations, see [https://developer.nvidia.com/blog/nvidia-transitions-fully-towards-open-source-gpu-kernel-modules/ this Nvidia explanation].
For more informations, see [https://developer.nvidia.com/blog/nvidia-transitions-fully-towards-open-source-gpu-kernel-modules/ this Nvidia explanation].
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=== Nvidia CUDA and AMD ROCm ===
=== Nvidia CUDA and AMD ROCm ===


Only Nvidia and amdgpu drivers (kernel modules) are provided in big and default environments. Tools like CUDA and ROCm have to be loaded with module commands.
Only nvidia and amdgpu drivers (kernel modules) are provided in big and default environments. Tools like CUDA and ROCm have to be loaded with module commands.


=== CUDA module ===
=== CUDA module ===

Revision as of 15:10, 19 August 2026


There is some significant evolutions since previous debian11 environments.

Common componants changes (Debian)

Componant Debian 11 Bullseye Debian 13 Trixie
Linux kernel 5.10 6.12
GCC 10.2 14.2
LLVM/Clang toolchain 11 19
Perl 5.32 5.40
Python 3.9 3.13
Ruby 2.7 3.3
OpenJDK 17 25
Qemu 5.2 10.0
Open MPI 4.1 5.0

For more informations, see debian.org Release Notes.

Environments specific changes

Available in debian13-big and debian13-std (default) environments :

x86_64 (AMD64) componants debian11 envs debian13 envs
Nvidia drivers 535.x 580.x
Nvidia CUDA 11.2.x via modules
AMD drivers (amdgpu) 6.3.x 30.x
AMD ROCm 6.3.x via modules
Singularity 4.1.2 N/A
Apptainer (Singularity replacement) N/A 1.4.5
aarch64 (ARM64) componants debian11 env debian13 env
Nvidia drivers N/A 580.x
Nvidia CUDA N/A N/A

Note some “old” Nvidia GPU clusters use a new dedicated environment named debiannvlegacy13-big and debiannvlegacy13-std (default). The only change in this environment flavor is that the proprietary nvidia module kernel is used, instead of the more recent open source one, as it is mandatory for Nvidia GPU Compute Capability < 7.5 .

For more informations, see this Nvidia explanation.

Some other useful informations:

Modules evolution

The default provided modules are no more build with Spack, but with GUIX

For more informations, see

TODO

Note ARM64 CPU architecture modules are not available for now. We are working on it.

Nvidia CUDA and AMD ROCm

Only nvidia and amdgpu drivers (kernel modules) are provided in big and default environments. Tools like CUDA and ROCm have to be loaded with module commands.

CUDA module

An example if environment debian13 : module load cuda-toolkit nvidia-driver-libs (default is currently cuda-toolkit/13).

An example if environment debiannvlegacy13 : module load cuda-toolkit/12 nvidia-driver-libs

Compatibility matrix:

environment Nvidia kernel module Nvidia GPU compute capability CUDA 12.9 CUDA 13
debiannvlegacy13 proprietary (legacy) < 7.5 OK KO
debian13 open ≥ 7.5 OK OK

For more informations on CUDA GPU Compute Capability, see Nvidia documentation.

ROCm (Radeon Open Compute) module

TODO

ROCm module has some others modules dependencies. module load rocm-hip-runtime hipblas hipblas-common rocblas rocm-toolchain gcc-toolchain

To make it easier to use, a rocm-abaca meta module to load has been defined : module load rocm-abaca

Tools changes

DHCP client and IPv6

ISC DHCP tools (client and server) are deprecated. See ISC Note.

The client has been replaced by dhcpcd. So the commonly used dhclient <interface_name> is no more available, and is be replaced by dhcpcd <interface_name>.

Node network interface will have both IPv4 and IPv6 addresses by default.

Network Time Protocol (NTP) client

For system time synchronizaton, ntpsec and ntpsec-ntpdate are used instead of no more available ntp et ntpdate tools packages.

CPU frequency scaling

cpufrequtils has been replaced by linux-cpupower (introduced with kernel 3.1).

See the cpupower manpage for more informations.

Open MPI

Debian11|12 disable many providers by default. We restore UCX and Fabric while keeping openib disabled to avoid useless warnings

TODO Bug 17590: debian 13 - Choix de configuration Open MPI

PMem

Debian ipmctl package, a utility for configuring and managing Intel® Optane™ Persistent Memory modules is not compatible with python 3.13 provided by Debian 13 repository.

So the Troll cluster in Grenoble featuring PMEM remains on debian11 environnement by default.

Singularity to Apptainer

Apptainer is available in replacement of Singularity.

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