NDLI: LFTI: A New Performance Metric for Assessing Interconnect Designs for Extreme-Scale HPC Systems

Content Provider	IEEE Xplore Digital Library
Author	Xin Yuan Mahapatra, S. Lang, M. Pakin, S.
Copyright Year	2014
Description	Author affiliation: Los Alamos Nat. Lab., Los Alamos, NM, USA (Lang, M.; Pakin, S.) \|\| Dept. of Comput. Sci., Florida State Univ., Tallahassee, FL, USA (Xin Yuan; Mahapatra, S.)
Abstract	Traditionally, interconnect performance is either characterized by simple topological parameters such as bisection bandwidth or studied through simulation that gives detailed performance information for the scenarios simulated. Neither of these approaches provides a good performance overview for extreme-scale interconnects. The topological parameters are not directly related to application level communication performance while the simulation complexity limits the number of scenarios that can be investigated. In this work, we propose a new performance metric, called LANL-FSU Throughput Indices (LFTI), for characterizing the throughput performance of interconnect designs. LFTI combines the simplicity of topological parameters and the accuracy of simulation: like topological parameters, LFTI can be derived from interconnect specification, at the same time, it directly reflects the application level communication performance. Moreover, in cases when the theoretical throughput for each communication pattern can be modeled efficiently for an interconnect, LFTI for the interconnect can be computed efficiently. These features potentially allow LFTI to be used for rapid and comprehensive evaluation and comparison of extreme-scale interconnect designs. We demonstrate the effectiveness of LFTI by using it to evaluate and explore the design space of a number of large-scale interconnect designs.
Starting Page	273
Ending Page	282
File Size	354432
Page Count	10
File Format	PDF
ISBN	9781479937998
ISSN	15302075
e-ISBN	9781479938001
DOI	10.1109/IPDPS.2014.38
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-05-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Throughput Routing Topology Bandwidth Peer-to-peer computing Measurement Indexes performance metric interconnect topology routing
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

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