An approach to ad hoc cloud computing

Graham Kirby, Alan Dearle, Angus Macdonald, Alvaro Fernandes

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We consider how underused computing resources within an enterprise may be harnessed to improve utilization and create an elastic computing infrastructure. Most current cloud provision involves a data center model, in which clusters of machines are dedicated to running cloud infrastructure software. We propose an additional model, the ad hoc cloud, in which infrastructure software is distributed over resources harvested from machines already in existence within an enterprise. In contrast to the data center cloud model, resource levels are not established a priori, nor are resources dedicated exclusively to the cloud while in use. A participating machine is not dedicated to the cloud, but has some other primary purpose such as running interactive processes for a particular user. We outline the major implementation challenges and one approach to tackling them.
Original languageEnglish
PublisherUniversity of St Andrews
Number of pages6
Publication statusPublished - 25 Feb 2010


  • cs.DC
  • Distributed, parallel, and cluster computing


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