The Design and Implementation of OMPit: An OpenMP Compiler Characterized by Logs for Parallel and Work-Sharing

Author

Luo, Qiuming ; Cai, Ye ; Liu, Chengjian ; Kong, Chang

Author_Institution

Nat. High Performance Comput. Center (NHPCC), Shenzhen Univ., Shenzhen, China

fYear

2011

fDate

9-11 Dec. 2011

Firstpage

350

Lastpage

355

Abstract

There are many tools for OpenMP benchmarking which measure the various aspects of the performance, such as the overheads of OpenMP directives and the characteristics of the whole system. But we lack some tools to show us the worksharing details when the OpenMP program finished running. The OMPit (OMPi for tutoring) is designed to provide the worksharing information during the running, which can be used for tutoring and might help debugging or tuning. The work-sharing logging includes the work assignment and the timestamps for three different work-sharing behaviors. The logging information can be output as a text files or visualized figures. The designing of OMPit is provided and the details of how to inserting the logging code into the OMPi compiler is discussed too.

Keywords

application program interfaces; computer aided instruction; computer science education; parallelising compilers; program debugging; system monitoring; OMPi compiler; OMPi for tutoring; OMPit; OpenMP compiler; logging code; timestamp; work assignment; worksharing information; worksharing logging; Benchmark testing; Debugging; Kernel; Program processors; Programming; Runtime; Upper bound; Compiler; Logging; OMPi; OpenMP; Work-sharing;

fLanguage

English

Publisher

ieee

Conference_Titel

Parallel Architectures, Algorithms and Programming (PAAP), 2011 Fourth International Symposium on

Conference_Location

Tianjin

Print_ISBN

978-1-4577-1808-3

Type

conf

DOI

10.1109/PAAP.2011.55

Filename

6128531