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DONE: Reservations: The ability to reserve nodes far in the future for things like CASA classes and SIW would be very helpful. It would need to prevent HTCondor from starting jobs on these nodes as reservation time approaches.
- Slurm
- scontrol create reservation starttime=now duration=5 nodes=testpost001 user=root
- scontrol create reservation starttime=2022-05-3T08:00:00 duration=21-0:0:0 nodes=nmpost[020-030] user=root reservationname=siw2022
- scontrol show res The output of this kinda sucks. Hopefully there is a better way to see all the reservations.
- HTcondor
- There isn't a reservation feature in HTCondor. Since CHTC makes use of preemption, their nodes can be removed at almost any time without adversely affecting running jobs. Sadly NRAO cannot really use preemption.
- OpenPBS
- pbs_rsub -R 202205130800 -D 210000 -l select = host=mars -l place=exclhostmakes reservations but they are very different than torque.
- could be used for interactive?Reserves the host mars for 21 days starting May 13, 2022 at 8:00am localtime.
- Slurm
- DONE: Array jobs: Do we want to keep the Torque array job functionality (e.g. #PBS -t 0-9%2)?
- Slurm
- #SBATCH --array=0-9%2 This syntax is very similar to Torque.
- HTCondor
- To some extent, this isn't how HTCondor is ment to be used. In other extents, DAGMan and the queue command can simulate this.
- queue 100 starts 100 copies of the job
- queue from seq 10 5 30 | will launch five jobs with $(item) set to 10, 15, 20, 25, 30
- queue item in 0, 1, 2, 3 Is another example. I don't think you can do the modulus feature with queue (i.e. %)
- You can throttle DAGMan jobs https://htcondor.readthedocs.io/en/latest/users-manual/dagman-workflows.html#throttling-nodes-by-category
- To some extent, this isn't how HTCondor is ment to be used. In other extents, DAGMan and the queue command can simulate this.
- OpenPBS
- #PBS -J 0-9:2
- Slurm
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