DocumentCode :
1965195
Title :
Impact of overlay properties upon a P2P approach for parallel B&B
Author :
Djamai, M. ; Derbel, Bilel ; Melab, Nouredine
Author_Institution :
INRIA Lille Nord-Eur., Univ. de Lille 1, Villeneuve-d´Ascq, France
fYear :
2012
fDate :
29-31 Aug. 2012
Firstpage :
1
Lastpage :
6
Abstract :
The state-of-the-art large scale approach for solving NP-hard permutation-like problems using parallel Branch-and-Bound (B&B) techniques is based on a Master-Slave model which is known to be limited in terms of scalability. To overcome this limitation, we designed a Peer-to-Peer (P2P) approach that can handle a huge amount of computational resources in a fully distributed way, that is without the need of any centralized coordinator. The operation of such a decentralized parallel algorithm relies mainly upon the communications between the computational entities. Thus, the network overlay shall have an impact on the performances of the approach. In this paper, we study this impact through selecting some state-of-the-art topologies and through experimenting our protocol using these topologies. Results show that (1) our approach has a globally improved scalability, (2) it performs at best with topologies offering a good trade-off between the diameter and the average degree of the nodes, (3) our approach performs well using topologies presenting simple structures like N-ary trees and random graphs, which is a good indication for evolving towards dynamic environments, where computational entities can join or leave the network at any time.
Keywords :
computational complexity; graph theory; overlay networks; parallel algorithms; peer-to-peer computing; random processes; tree searching; B&B techniques; N-ary trees; NP-hard permutation-like problems; P2P approach; centralized coordinator; computational entity; computational resources; decentralized parallel algorithm; dynamic environments; globally improved scalability; master-slave model; network overlay; overlay property; parallel B&B; parallel branch-and-bound techniques; peer-to-peer approach; random graphs; state-of-the-art large scale approach; state-of-the-art topology; Branch and Bound; Grid computing; Large scale distributed systems; Network Topologies; Overlay Networks; Peer-to-Peer;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Systems and Computer Science (ICSCS), 2012 1st International Conference on
Conference_Location :
Lille
Print_ISBN :
978-1-4673-0673-7
Electronic_ISBN :
978-1-4673-0672-0
Type :
conf
DOI :
10.1109/IConSCS.2012.6502446
Filename :
6502446
Link To Document :
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