期刊名称：International Journal of Computer Science & Technology
印刷版ISSN：2229-4333
电子版ISSN：0976-8491
出版年度：2012
卷号：3
期号：3
页码：824-830
语种：English
出版社：Ayushmaan Technologies
摘要：A key advantage of Infrastructure-as-a-Service (IaaS) exhausts is providing users 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. However, to provide on-demand access, exhaust 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. We propose a exhaust infrastructure that combines on-demand allocation of resources with opportunistic provisioning of cycles from idle exhaust nodes to other processes by deploying backfill Virtual Machines (VMs). We demonstrate that a shared infrastructure between IaaS exhaust providers and an HTC job management system can be highly beneficial to both the IaaS exhaust provider and HTC users by increasing the utilization of the exhaust infrastructure (thereby decreasing the overall cost) and contributing cycles that would otherwise be idle to processing HTC jobs. For demonstration and experimental evaluation, we extend the Nimbus exhaust computing toolkit to deploy backfill VMs on idle exhaust nodes for processing an HTC workload. Initial tests show an increase in IaaS exhaust utilization from 37.5% to 100% during a portion of the evaluation trace but only 6.39% overhead cost for processing the HTC workload.
