NDLI: Network topology aware scheduling of collective communications

Content Provider	IEEE Xplore Digital Library
Author	Gabrielyan, E. Hersch, R.D.
Copyright Year	2003
Description	Author affiliation: Ecole Polytech. Fed. de Lausanne, Switzerland (Gabrielyan, E.; Hersch, R.D.)
Abstract	A method is proposed for the optimal scheduling of collective data exchanges relying on the knowledge of the underlying network topology. The concept of liquid schedules is introduced. Liquid schedules ensure the maximal utilization of a network's bottleneck links and offer an aggregate throughput as high as the flow capacity of a liquid in a network of pipes. The collective communication throughput offered by liquid schedules in highly loaded networks might be several times higher than the throughput of topology-unaware techniques. To create a liquid schedule, it is important to find the smallest partition of all transfers into subsets of mutually non-congesting transfers. The number of combinations of non-overlapping subsets of mutually non-congesting transfer grows exponentially with the number of transfers. Several methods are proposed to reduce the search space without affecting the solution space. On a real 32-node computer cluster, the measured throughputs of data exchanges scheduled according to our method are very close to the theoretical liquid throughputs.
Starting Page	1051
Ending Page	1058
File Size	523407
Page Count	8
File Format	PDF
ISBN	0780376617
DOI	10.1109/ICTEL.2003.1191583
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2003-02-23
Publisher Place	French Polynesia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Network topology Processor scheduling Optical switches Aggregates Wireless networks Optimal scheduling Spread spectrum communication Throughput Computer networks Communication switching
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