Technical note Open Access
{ "@context": "https://schema.org/", "@id": "https://doi.org/10.15161/oar.it/143357", "@type": "ScholarlyArticle", "creator": [ { "@id": "https://orcid.org/0000-0002-1057-2307", "@type": "Person", "affiliation": "INFN-CNAF", "name": "Dal Pra, Stefano" } ], "datePublished": "2014-12-16", "description": "<p>The default behaviour of a batch system is to dispatch jobs to nodes having the lower<br>\nvalue of some load index. Whilst this causes jobs to be equally distributed among all the<br>\nnodes in the farm, there are cases when different types of behaviour may be desirable, such as<br>\nhaving a completely full node before dispatching jobs to another one, or having similar jobs<br>\ndispatched to nodes already running jobs of the same kind. This work defines the packing<br>\nconcept, different packing policies and useful metrics to evaluate how good the policy is. A<br>\nsimple farm simulator has been written to evaluate the expected impact on a farm of different<br>\npacking policy. The simulator is run against a sequence of real jobs, whose parameters have<br>\nbeen taken from the accounting database of INFN-Tier1. The effectiveness of two packing<br>\npolicies of interest, namely relaxed and exclusive, are compared. The exclusive policy proves<br>\nto be better, at the cost of unused cores in the farm, whose number is estimated. The<br>\npossibility of implementing the exclusive policy on a specific batch system, LSF 7.06, is<br>\nexploited. Relevant configurations are shown and an overall description of the mechanism is<br>\npresented.</p>", "headline": "JOB PACKING: OPTIMIZED CONFIGURATION FOR JOB SCHEDULING", "identifier": "https://doi.org/10.15161/oar.it/143357", "image": "https://zenodo.org/static/img/logos/zenodo-gradient-round.svg", "inLanguage": { "@type": "Language", "alternateName": "eng", "name": "English" }, "license": "https://creativecommons.org/licenses/by/4.0/", "name": "JOB PACKING: OPTIMIZED CONFIGURATION FOR JOB SCHEDULING", "url": "https://www.openaccessrepository.it/record/143357" }
All versions | This version | |
---|---|---|
Views | 0 | 0 |
Downloads | 0 | 0 |
Data volume | 0 Bytes | 0 Bytes |
Unique views | 0 | 0 |
Unique downloads | 0 | 0 |