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2011
IEEE

Improving Utilization of Infrastructure Clouds

7 years 10 months ago
Improving Utilization of Infrastructure Clouds
— A key advantage of Infrastructure-as-a-Service (IaaS) clouds is providing users on-demand access to resources. However, to provide on-demand access, cloud providers must either significantly overprovision their infrastructure (and pay a high price for operating resources with low utilization) or reject a large proportion of user requests (in which case the access is no longer on-demand). At the same time, not all users require truly on-demand access to resources. Many applications and workflows are designed for recoverable systems where interruptions in service are expected. For instance, many scientists utilize High Throughput Computing (HTC)-enabled resources, such as Condor, where jobs are dispatched to available resources and terminated when the resource is no longer available. We propose a cloud infrastructure that combines on-demand allocation of resources with opportunistic provisioning of cycles from idle cloud nodes to other processes by deploying backfill Virtual Machines...
Paul Marshall, Kate Keahey, Timothy Freeman
Added 18 Aug 2011
Updated 18 Aug 2011
Type Journal
Year 2011
Where CCGRID
Authors Paul Marshall, Kate Keahey, Timothy Freeman
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