NDLI: The Effects of Communication Parameters on End Performance of Shared Virtual Memory Clusters

Content Provider	IEEE Xplore Digital Library
Author	Bilas, A. Singh, J.P.
Copyright Year	1997
Description	Author affiliation: Princeton University (Bilas, A.)
Abstract	Recently there has been a lot of effort in providing cost-effective Shared Memory systems by employing software only solutions on clusters of high-end workstations coupled with high-bandwidth, low-latency commodity networks. Much of the work so far has focused on improving protocols, and there has been some work on restructuring applications to perform better on SVM systems. The result of this progress has been the promise for good performance on a range of applications at least in the 16-32 processor range. New system area networks and network interfaces provide significantly lower overhead, lower latency and higher bandwidth communication in clusters, inexpensive SMPs have become common as the nodes of these clusters, and SVM protocols are now quite mature. With this progress, it is now useful to examine what are the important system bottlenecks that stand in the way of effective parallel performance; in particular, which parameters of the communication architecture are most important to improve further relative to processor speed, which ones are already adequate on modern systems for most applications, and how will this change with technology in the future. Such information can assist system designers in determining where to focus their energies in improving performance, and users in determining what system characteristics are appropriate for their applications. We find that the most important system cost to improve is the overhead of generating and delivering interrupts. Improving network interface (and I/O bus) bandwidth relative to processor speed helps some bandwidth-bound applications, but currently available ratios of bandwidth to processor speed are already adequate for many others. Surprisingly, neither the processor overhead for handling messages nor the occupancy of the communication interface in preparing and pushing packets through the network appear to require much improvement.
Starting Page	1
Ending Page	1
File Size	634946
Page Count	1
File Format	PDF
ISBN	0897919858
DOI	10.1109/SC.1997.10014
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-11-15
Access Restriction	Subscribed
Rights Holder	Association for Computing Machinery, Inc. (ACM)
Subject Keyword	Support vector machines Protocols Bandwidth Network interfaces Costs Delay Software performance Software systems Workstations Application software Clustering Distributed Memory Shared Memory Communication Parameters Latency Host Overhead Network Occupancy Interrupt Cost
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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