[slurm-announce] Slurm release candidate version 20.11.0rc1 available for testing

[Tim Wickberg]

We are pleased to announce the availability of Slurm release candidate 
version 20.11.0rc1.

Slurm 20.11 includes a number of new features including:

- Overhaul of the job step management and launch code, alongside 
improved GPU task placement support.

- A new "Interactive Step" mode of operation for salloc.

- A new "scrontab" command that can be used to submit and manage 
periodically repeating jobs.

- IPv6 support.

- Changes to the reservation logic, with new options allowing users to 
delete reservations, allowing admins to skip the next occurance of a 
repeated reservation, and allowing for a job to be submitted and 
eligible to run within multiple reservations.

- Dynamic Future Nodes - automatically associate a dynamically 
provisioned (or "cloud") node against a NodeName definition with 
matching hardware.

- An experimental new RPC queuing mode for slurmctld to reduce thread 
contention on heavily loaded clusters.

Please see the RELEASE_NOTES distributed alongside the source for 
further details.

This is the first release candidate version of the upcoming 20.11 
release series, and represents the end of development for the release 
cycle, and a finalization of the RPC and state file formats.

If any issues are identified with this new release candidate, please 
report them through https://bugs.schedmd.com against the 20.11.x version 
and we will address them before the first production 20.11.0 release is 
made.

Please note that the release candidates are not intended for production 
use. Barring any late-discovered issues, the state file formats should 
not change between now and 20.11.0 and are considered frozen at this 
time for the 20.11 release.

A preview of the updated documentation can be found at 
https://slurm.schedmd.com/archive/slurm-master/ .

Slurm can be downloaded from https://www.schedmd.com/downloads.php .

- Tim

-- 
Tim Wickberg
Chief Technology Officer, SchedMD LLC
Commercial Slurm Development and Support