A Virtual Machine Monitor for Utilizing Non-dedicated Clusters Kenji Kaneda Yoshihiro Oyama Akinori Yonezawa (University of Tokyo)

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Presentation transcript:

A Virtual Machine Monitor for Utilizing Non-dedicated Clusters Kenji Kaneda Yoshihiro Oyama Akinori Yonezawa (University of Tokyo)

What is the Goal of This Work? Build a virtual SMP on a cluster –Commodity OS runs on a virtual SMP  Easy management of distributed resources –Various applications run on a guest OS  Easy parallel programming with shell script, make command, … cluster virtualization virtual SMP

Linux 2.4 guest OS Current Status Virtual 8-way SMP is built on a cluster of 8 nodes –Linux 2.4 runs as a guest OS Processor Memory Processor Memory Processor Memory … physical machines virtual SMP Processor Memory Processor … host OS Linux 2.4 Virtual Machine Monitor (VMM) Linux 2.4

Demo Distributing a workload with our VMM

How to Implement our VMM Virtualize hardware resources: Processors –Para-virtualization Shared memory –Similar to software DSM I/O devices – A central server keeps track of virtual devices

Support of Hotplug of Physical Machines virtualization virtual N-way SMP VMM keeps a virtual SMP consistent even if physical machines are added or removed –consistent = # of virtual processors is fixed

How to Support Hotplug VMM dynamically maps virtual processors to physical processors –VMM moves some virtual processor to a newly added physical machine Processor Memory Processor Memory physical machines virtual SMP Processor Memory Processor Memory

Future Work Performance Improvement –Optimizing our memory coherence algorithm Fault tolerance –with a distributed check-pointing algorithm

Thank You for Your Attention Source code is available at /

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