Performance evaluation of OpenMP and MPI hybrid programs on a large scale multi-core multi-socket cluster, T2K Open Supercomputer

被引：6

作者：

Tsuji, Miwako ^{[1
]}

Sato, Mitsuhisa ^{[1
]}

机构：

[1] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki, Japan

来源：

2009 INTERNATIONAL CONFERENCE ON PARALLEL PROCESSING WORKSHOPS (ICPPW 2009) | 2009年

关键词：

performance evaluation; OpenMP; MPI;

D O I：

10.1109/ICPPW.2009.73

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

Non-uniform memory access (NUMA) systems, where each processor has its own memory, have been popular platform in high-end computing. While some early studies had reported that a flat-MPI programming model outperformed an OpenMP/MPI hybrid programming model on SMP clusters, the hybrid of a shared-memory, thread-based programming and a distributed-memory, message passing programming is considered to be a promising programming model on the multi-core multi-socket NUMA clusters. We explore the performance of the OpenMP/MPI hybrid programming model on a large scale multi-core multi-socket cluster called T2K Open Supercomputer. Both of benchmark (NPB, NAS Parallel Benchmarks) and application (RSDFT, Real-Space Density Function Theory) codes are considered. The hybridization for the RSDFT code is also shown. Our experiments show that the multi-core multi-socket cluster can take advantage of the hybrid programming model when it uses MPI across sockets and OpenMP within sockets.

引用

页码：206 / 213

页数：8