Nimbus is an open source toolkit that allows you to turn your cluster into an Infrastructure-as-a-Service (IaaS) cloud. Feature highlights include:

• Two sets of interfaces: Amazon EC2 WSDLs (Query API in v2.3+) and Grid community WSRF. read more about interfaces >
• Implementation based on the Xen hypervisor (KVM in v2.3+). read more about supported virtualization technologies >
• Can be configured to use familiar schedulers like PBS or SGE to schedule virtual machines. read more about the workspace pilot >
• Launches self-configuring virtual clusters with one click. read more about the context broker >
• Defines an extensible architecture that allows you to customize the software to the needs of your project. read more about extensiblity >