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alces-software / flight-appliance-docs

Documentation for deploying and using Alces Flight Appliances
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Job-scheduler documentation pages missing details of default resources #48

Closed wdm78 closed 7 years ago

wdm78 commented 8 years ago

We need to document default resource settings for non-SGE schedulers

vlj91 commented 8 years ago

OpenLava

Previously I'd left the OpenLava documentation free of any mention of default resources, as from research it seems that the defaults are just "unlimited". I've added a paragraph explaining that whilst the default resource limit is unlimited, jobs may benefit from having resource requirements submitted in order to better schedule and back-fill jobs.

Torque

The Torque configuration sets up 2 default limits on the default queue, so I've updated the text to include those 2 default limits. All other limits are unlimited, so also noted the importance of informing the scheduler of the required resources to better schedule many jobs

Slurm

Detailed some of the default resources as per the following page

PBS Pro

PBS Pro has no default resource limits set up: 

[alces@login1(pbs-pro) ~]$ qmgr -c 'list queue workq'
Queue workq
        queue_type = Execution
        total_jobs = 0
        state_count = Transit:0 Queued:0 Held:0 Waiting:0 Running:0 Exiting:0 Begun:0
        enabled = True
        started = True

I've slightly reworded the PBS Pro documentation to suggest that providing scheduler directives may optimise job scheduling