高效能计算机系统虚拟化技术研究

Research on the Virtual Technology for High Productive Computer Systems

高效能计算机对系统的性能、安全性、可靠性和易用性等方面提出了更高的要求。虚拟机技术由于具有安全性好、配置和管理灵活等特点,已广泛应用于服务整合和安全管理等领域。但是,由于虚拟机技术在性能、管理和体系结构适用性等方面原因,在高性能并行计算机系统上尚未真正实用。我们提出了一种面向高性能并行计算机的虚拟化技术:高性能虚拟计算域(HPVZ)。HPVZ技术在保证系统性能的前提下,提供了具有用户独立可定制运行环境、服务质量管理、安全隔离和动态迁移的虚拟化高性能计算环境。测试表明,HPVZ在保证用户可以获得高性能计算机的原始计算能力的基础上,方便了用户使用,并改变了高性能计算机的传统使用模式。

The virtual machine technologies are widely used in the fields of server consolidation and security,and easy configuration and management.But virtual machines are not really used on high performance computers,because a virtual machine is not suitable for the architecture of HPC and loses some performance.In this paper we present a virtual machine technology for HPC：HPVZ.The HPVZ technology provides a custom user environment,and also provides security isolation and dynamic migration without much degradation in performance.We carry out a detailed analysis on the performance overhead of our HPVZ framework.Our evaluation shows that HPVZ can achieve almost the raw performance of HPC.