NDLI: High Performance Relay Mechanism for MPI Communication Libraries Run on Multiple Private IP Address Clusters

Content Provider	IEEE Xplore Digital Library
Author	Takano, R. Matsuda, M. Kudoh, T. Kodama, Y. Okazaki, F. Ishikawa, Y. Yoshizawa, Y.
Copyright Year	2008
Description	Author affiliation: Grid Technol. Res. Center, Nat. Inst. of Adv. Ind. Sci. & Technol., Tokyo (Takano, R.)
Abstract	We have been developing a Grid-enabled MPI communication library called GridMPI, which is designed to run on multiple clusters connected to a wide-area network. Some of these clusters may use private IP addresses. Therefore, some mechanism to enable communication between private IP address clusters is required. Such a mechanism should be widely adoptable, and should provide high communication performance. In this paper, we propose a message relay mechanism to support private IP address clusters in the manner of the Interoperable MPI (IMPI) standard. Therefore, any MPI implementations which follow the IMPI standard can communicate with the relay. Furthermore, we also propose a trunking method in which multiple pairs of relay nodes simultaneously communicate between clusters to improve the available communication bandwidth. While the relay mechanism introduces an one-way latency of about 25 musec, the extra overhead is negligible, since the communication latency through a wide area network is a few hundred times as large as this. By using trunking, the inter-cluster communication bandwidth can improve as the number of trunks increases. We confirmed the effectiveness of the proposed method by experiments using a 10 Gbps emulated WAN environment. When relay nodes with 1 Gbps NICs are used, the performance of most of the NAS Parallel Benchmarks improved proportional to the number of trunks. Especially, using 8 trunks, FT and IS are 4.4 and 3.4 times faster, respectively, compared with the single trunk case. The results showed that the proposed method is effective for running MPI programs over high bandwidth-delay product networks.
Starting Page	401
Ending Page	408
File Size	546028
Page Count	8
File Format	PDF
ISBN	9780769531564
DOI	10.1109/CCGRID.2008.88
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-19
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Relays Libraries Bandwidth Network address translation Virtual private networks Grid computing Delay Wide area networks Network interfaces Computer networks Private IP address clusters MPI IMPI
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in