I used to deal with FlexLM licenses with PBSPro. A prolog script ran before each job and looked at the license server. IF there were not sufficient licenses the job was held. This was a Perl script. These days with PBSPro you would run it as a 'job hook' and it would be a Python script. The 'job hook' system in PBS is pretty sophisticated, and I used it for other purposes for job consumption of resources. And no, I don’t really kno why I am reporting this to a Lsurm list, other than to ask if there are equivalents to job hooks.
-----Original Message----- From: Loris Bennett [mailto:[email protected]] Sent: 27 October 2016 08:24 To: slurm-dev <[email protected]> Subject: [slurm-dev] Re: Slurm license management question Baker D.J. <[email protected]> writes: > Hello, > > Looking at the Slurm documentation I see that it is possible to handle > basic license management (this is the link > http://slurm.schedmd.com/licenses.html). In other words software > licenses can be treated as a resource, however things appear to be fairly > rudimentary at the moment – at least that’s my impression. > We are used to doing license management in moab, and if we don’t have > that properly implemented is it not the end of the world, however not ideal. > > One situation that we would like to be able to deal with is a FlexLM 3 > server redundancy situation. So, for example, our Comsol licenses are > served out in this fashion. Is this something that slurm can deal > with, and, if so, how can it be done? Any advice including slurm’s > short comings and/or future plans in this respect would be useful, please. > > Best regards, > > David We have licenses, such as Intel compiler licenses, which can be used both interactively outside the queuing system and within Slurm jobs. We use a script which parses the output of the FlexLM manager and modifies a reservation in which the licenses are defined. This is run as a cron job once a minute. It's a bit of a kludge and obviously won't work well if there is a lot of contention for licenses. I can post the code if anyone is interested. Cheers, Loris -- Dr. Loris Bennett (Mr.) ZEDAT, Freie Universität Berlin Email [email protected] Any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the company. Employees of XMA Ltd are expressly required not to make defamatory statements and not to infringe or authorise any infringement of copyright or any other legal right by email communications. Any such communication is contrary to company policy and outside the scope of the employment of the individual concerned. The company will not accept any liability in respect of such communication, and the employee responsible will be personally liable for any damages or other liability arising. XMA Limited is registered in England and Wales (registered no. 2051703). Registered Office: Wilford Industrial Estate, Ruddington Lane, Wilford, Nottingham, NG11 7EP
