Allowing setting use_job_duration with non-exclusive partitions. #4696
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…e partition as well.
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Task: DWS - allow setting
use_job_durationwith non-exclusive partitionsApproach: putting a reservation on a provisioned node, that starts when DWS EOL is expected.
Changes:
Removed the restriction that use_job_duration can only be used in exclusive partitions from documentation and code.
Added functions to create and delete Slurm reservations when use_job_duration is enabled.
Updated the provisioning logic to automatically handle Slurm reservations at node boot and termination.
Minor doc and code cleanups related to DWS Flex options.
Expected Behavior:
nodes are provisioned with max_run_duration passed to DWS
all jobs, that have job time set to finish before DWS node expires can be scheduled on this node (provided that resources are available, if not - a new node is provisioned)
if the job specifies a job time that exceeds DWS node expiration, then new node(s) will be created for this job
when no jobs are running on nodes, SuspendTime takes effect, and deprovisions node, after defined time.