[slurm-users] Slurm release candidate version 23.11rc1 available for testing
tim at schedmd.com
Tue Nov 7 23:22:58 UTC 2023
We are pleased to announce the availability of Slurm release candidate
To highlight some new features coming in 23.11:
- Substantially overhauled the SlurmDBD association management code. For
clusters updated to 23.11, account and user additions or removals are
significantly faster than in prior releases.
- Overhauled 'scontrol reconfigure' to prevent configuration mistakes
from disabling slurmctld / slurmd. Instead, an error will be returned,
and the running configuration will persist. This does require updates to
the systemd service files to use the --systemd option to slurmctld / slurmd.
- Added a new internal auth/cred plugin - "auth/slurm". This builds off
the prior auth/jwt model, and permits operation of the slurmdbd and
slurmctld without access to full directory information with a suitable
- Added a new --external-launcher option to srun, which is automatically
set by common MPI launcher implementations and ensures processes using
those non-srun launchers have full access to all resources allocated on
- Reworked the dynamic/cloud modes of operation to allow for "fanout" -
where Slurm communication can be automatically offloaded to compute
nodes for increased cluster scalability.
- Added initial official Debian packaging support.
- Overhauled and extended the Reservation subsystem to allow for most of
the same resource requirements as are placed on the job. Notably, this
permits reservations to now reserve GRES directly.
This is the first release candidate of the upcoming 23.11 release
series, and represents the end of development for this release, and a
finalization of the RPC and state file formats.
If any issues are identified with this release candidate, please report
them through https://bugs.schedmd.com against the 23.11.x version and we
will address them before the first production 23.11.0 release is made.
Please note that the release candidates are not intended for production use.
A preview of the updated documentation can be found at
Slurm can be downloaded from https://www.schedmd.com/downloads.php .
Chief Technology Officer, SchedMD LLC
Commercial Slurm Development and Support
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