高性能计算操作系统面临独特的需求与挑战,这些需求与挑战涵盖并发与高效、系统弹性与容错、异构性、I/O和访存带宽、低噪等诸多方面.传统宏内核操作系统并不能完全满足HPC领域的独特需求,因而需要为HPC定制操作系统.提出虚拟化操作系统架构,该架构主要包含两部分:(1)虚拟机监视器与轻量级内核相结合的虚拟化操作系统架构;(2)支持分时复用虚拟机与空间分割虚拟机相结合的虚拟机监视器架构.在国产平台上设计并实现了一个简单的系统原型Hypervk,说明了上述架构的可行性.初步的实验结果表明,系统具有较好的效率、低噪特性与可行性,在一定程度上可以满足HPC操作系统独特的需求.%HPC operating systems face unique challenges that cannot be tackled by traditional macro kernel operating systems.These challenges range from concurrency and high efficiency,system flexibility and fault tolerance,heterogeneity,I/O and memory bandwidth to low noise.We present a virtual operating system architecture,which combines a virtual machine manager with a lightweight kernel.The virtual machine manager supports both time-and space-sharing virtual machines.We implement a system prototype Hypervk based on the domestic platform and preliminary experimental results verify the feasibility and efficiency of the system.
展开▼
