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arXiv cs/0303016cs.DCcs.ARhep-lat
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机群计算机上的快速并行I/O

Fast Parallel I/O on Cluster Computers

Thomas Duessel, Norbert Eicker, Florin Isaila, Thomas Lippert, Thomas Moschny, Hartmut Neff, Klaus Schilling, Walter Tichy

摘要:

今天的集群计算机的I/O速度很慢,这会降低I/O密集型应用程序的速度。我们表明,快速磁盘I/O可以通过在快速网络(如Myrinet或千兆以太网)上运行并行文件系统来实现。在本文中,我们演示了ParaStation 3通信系统如何帮助加快性能的并行I/O的集群使用开源并行虚拟文件系统(PVFS)作为测试床和生产系统。我们将描述PVFS在位于德国伍珀塔尔大学的Alpha-Linux-Quanter-Engine(ALiCE)上的设置。ALiCE上的基准测试从32个处理器的计算分区到32个处理器的PVFS I/O分区实现了高达1 GB/s的写入性能,比相同网络上PVFS的已知基准测试结果高出2倍以上。从缓冲区缓存读取性能达到2.2 GB/s。我们的基准是巨大的,I/O密集的本征模问题,从晶格量子色动力学,证明PVFS的稳定性和性能在大规模生产运行的Parastation。

英文摘要:

Today's cluster computers suffer from slow I/O, which slows down I/O-intensive applications. We show that fast disk I/O can be achieved by operating a parallel file system over fast networks such as Myrinet or Gigabit Ethernet. In this paper, we demonstrate how the ParaStation3 communication system helps speed-up the performance of parallel I/O on clusters using the open source parallel virtual file system (PVFS) as testbed and production system. We will describe the set-up of PVFS on the Alpha-Linux-Cluster-Engine (ALiCE) located at Wuppertal University, Germany. Benchmarks on ALiCE achieve write-performances of up to 1 GB/s from a 32-processor compute-partition to a 32-processor PVFS I/O-partition, outperforming known benchmark results for PVFS on the same network by more than a factor of 2. Read-performance from buffer-cache reaches up to 2.2 GB/s. Our benchmarks are giant, I/O-intensive eigenmode problems from lattice quantum chromodynamics, demonstrating stability and performance of PVFS over Parastation in large-scale production runs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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