Flying Low: Simple Leases with Workspace Pilot

As virtual machines (VMs) are used for a wider range of applications, we encounter the need to integrate virtual machine provisioning models into the current site resource management infrastructure as seamlessly as possible. To address such requirements, we describe an approach to VM management that uses the ideas of multi-level scheduling to integrate VM provisioning into existing job schedulers. We further describe how VMs provisioned in this way can be turned into useful virtual clusters integrated into the surrounding infrastructure and community.