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Virtual Machine Monitor for Non-dedicated Clusters: Efficient Resource Utilization

This work aims to build a virtual SMP system on a cluster, enabling easy management of distributed resources and facilitating parallel programming. The VMM allows various applications to run on a guest OS, promoting virtualization and efficient use of hardware resources. The project demonstrates a virtual 8-way SMP built on an 8-node cluster, running Linux 2.4 as a guest OS. Implementation includes virtualizing processors, shared memory, and supporting hotplug of physical machines. Future work focuses on performance enhancement, memory coherence optimization, fault tolerance, and distributed check-pointing. Source code available at the provided link.

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Virtual Machine Monitor for Non-dedicated Clusters: Efficient Resource Utilization

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

  2. 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, … virtualization virtual SMP cluster

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

  4. Demo • Distributing a workload with our VMM

  5. 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

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

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

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

  9. Thank You for Your Attention Source code is available at http://www.yl.is.s.u-tokyo.ac.jp/projects/vincs/

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