Cultural advice

The Australian National University acknowledges, celebrates and pays our respects to the Ngunnawal and Ngambri people of the Canberra region and to all First Nations Australians on whose traditional lands we meet and work, and whose cultures are among the oldest continuing cultures in human history.

Aboriginal and Torres Strait Islander peoples are advised that ANU Library collections may include images, names, voices, and other representations of deceased persons.

Material in the collection may contain terms, language or views that reflect the period in which the item was created and may be considered inappropriate today.

Non-threaded and Threaded Approaches to MultiRail Communications with uDAPL

Thumbnail Image

Date

2009

Authors

Cai, Jie
Rendell, Alistair
Strazdins, Peter

Journal Title

Journal ISSN

Volume Title

Publisher

Institute of Electrical and Electronics Engineers (IEEE Inc)

Abstract

uDAPL is a portable and platform independent communication library that provides RDMA as well as send/recv operations. Some well-known software has attempted to take advantage of uDAPL's portability, such as Open MPI, MVAPICH2, Intel MPI, and Cluster OpenMP. However, network bandwidth limitations can still be a bottleneck for applications using these software. Engaging a "Multirail" network is a method to by-pass this. In this paper, we design a non-threaded and a threaded approach to improve the performance of uDAPL over multirail configured clusters. The two approaches are evaluated on an InfiniBand cluster with different multirail configurations. The results show that the threaded approach improves by 33% and 148% the uni-directional bandwidth on the multi-port and the multi-HCA configured network respectively, and the nonthreaded approach improves ∼90% of the uni-directional bandwidth on the multi-HCA configured network. A similar improvement is achieved for the bi-directional bandwidth.

Description

Keywords

Keywords: Bi-directional bandwidth; Communication library; InfiniBand clusters; Multi-port; Network bandwidth limitation; Platform independent; Bandwidth; Parallel architectures; Computer software portability

Citation

URI

http://hdl.handle.net/1885/52808

Collections

ANU Research Publications

Source

Proceedings of the 2009 Sixth IFIP International Conference on Network and Parallel Computing

Type

Conference paper

Book Title

Entity type

Access Statement

License Rights

DOI

10.1109/NPC.2009.10

Restricted until

2037-12-31

Downloads

File
Description
01_Cai_Non-threaded_and_Threaded_2009.pdf (391.08 KB)

DSpace software copyright © 2002-2026 LYRASIS