Characterization of MPI communication primitives on a heterogeneous cluster / Siti Arpah Ahmad ... [et al.]

Ahmad, Siti Arpah and Mohamed Said, Mohamed Faidz and Mohamed Ramli, Norazan and Taib, Mohd Nasir (2009) Characterization of MPI communication primitives on a heterogeneous cluster / Siti Arpah Ahmad ... [et al.]. Scientific Research Journal, 6 (2). pp. 23-30. ISSN 1675-7009

Official URL: https://srj.uitm.edu.my/

Abstract

This paper focuses on the performance of basic communication primitives, namely the overlap of message transfer with computation in the point-to-point
communication within a small cluster of four nodes. The mpptest has been implemented to measure the basic performance of MPI message passing routines with a variety of message sizes. The mpptest is capable of measuring performance with many participating processes thus exposing contention and scalability problems. This enables programmers to select message sizes in order to isolate
and evaluate sudden changes in performance. Investigating these matters is interesting in that non-blocking calls have the advantage of allowing the system to schedule communications even when many processes are running
simultaneously. On the other hand, understanding the characteristics of computation and communication overlap is significant, because high performance kernels often strive to achieve this, since it is both advantageous with respect to data transfer and latency hiding. The results indicate that certain overlap sizes utilize greater node processing power either in blocking send and receive operations or non-blocking send and receive operations. The results have elucidated a detailed MPI characterization of the performance regarding the overlap of message transfer with computation in a small cluster system.

Metadata

Item Type: Article
Creators:
Creators
Email / ID Num.
Ahmad, Siti Arpah
sitiarpahahmad@yahoo.com
Mohamed Said, Mohamed Faidz
UNSPECIFIED
Mohamed Ramli, Norazan
UNSPECIFIED
Taib, Mohd Nasir
UNSPECIFIED
Subjects: Q Science > QA Mathematics > Parallel processing (Electronic computers)
Divisions: Universiti Teknologi MARA, Shah Alam > Research Management Centre (RMC)
Journal or Publication Title: Scientific Research Journal
UiTM Journal Collections: UiTM Journal > Scientific Research Journal (SRJ)
ISSN: 1675-7009
Volume: 6
Number: 2
Page Range: pp. 23-30
Keywords: Point-to-point communication, message passing interface, parallel computing, MPI characterization
Date: 2009
URI: https://ir.uitm.edu.my/id/eprint/12924
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12924

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