Optimizing Performance of ROMS on Intel Xeon Phi

被引：1

作者：

Bhaskaran, Gopal ^{[1
]}

Gaurav, Pratyush ^{[1
]}

机构：

[1] Tata Consultancy Serv, Pune, Maharashtra, India

来源：

INTERNATIONAL CONFERENCE ON COMPUTATIONAL SCIENCE, ICCS 2015 COMPUTATIONAL SCIENCE AT THE GATES OF NATURE | 2015年 / 51卷

关键词：

Ocean Modeling; ROMS; HPC; Optimization; Intel Xeon Phi; MIC; Vectorization; MODEL;

D O I：

10.1016/j.procs.2015.05.447

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

ROMS (Regional Oceanic Modeling System) is an open-source ocean modeling system that is widely used by the scientific community. It uses a coarse-grained parallelization scheme which partitions the computational domain into tiles. ROMS operates on a lot of multi-dimensional arrays, which makes it an ideal candidate to gain from architectures with wide and powerful Vector Processing Units (VPU) such as Intel Xeon Phi. In this paper we present an analysis of the BENCHMARK application of ROMS and the issues affecting its performance on Xeon Phi. We then present an iterative optimization strategy for this application on Xeon Phi which results in a speed-up of over 2x compared to the baseline code in the native mode and 1.5x in symmetric mode.

引用

页码：2854 / 2858

页数：5

共 7 条

[1]

Jeffers J., 2013, Intel Xeon Phi coprocessor high-performance programming

[2] A comprehensive ocean prediction and analysis system based on the tangent linear and adjoint of a regional ocean model [J].