Squee. (*)
Just a note - for Mellanox IB users, there is the tuning guide which advises using interrupts on the CPU nearest the HBA. I guess it makes sense to eke out that last fraction of performance to make the reserved cores be local to the HBA. hwloc is you friend here. (*) and see my frequent references to 'donkey engines' way over there on the Beowulf list. Donkey engine = small engine which is used to crank over a much larger diesel engine, and to provide auxiliary power -----Original Message----- From: Christopher Samuel [mailto:sam...@unimelb.edu.au] Sent: 15 September 2016 01:31 To: slurm-dev <slurm-dev@schedmd.com> Subject: [slurm-dev] Re: cpu identifier On 15/09/16 05:20, andrealphus wrote: > On a side note, any idea if there is a parameter to not have it use a > particular cpu? This is a single node workstation, with > 18 cores. The end goal is to have a default set up where it can say > run 16 jobs, bound to 16 unique cores, excluding core 1 and 2, which > are primarily used for system overhead. Slurm has core specialisation, which is documented here: http://slurm.schedmd.com/core_spec.html I *think* it's meant to do what you want it to do, but I don't think I've had enough coffee yet to really grok what it's saying.. -- Christopher Samuel Senior Systems Administrator VLSCI - Victorian Life Sciences Computation Initiative Email: sam...@unimelb.edu.au Phone: +61 (0)3 903 55545 http://www.vlsci.org.au/ http://twitter.com/vlsci 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
