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2014 Second International Symposium on Computing and Networking (CANDAR) (2014)
Shizuoka, Japan
Dec. 10, 2014 to Dec. 12, 2014
ISBN: 978-1-4799-4152-0
pp: 354-359
For the purpose of realizing highly-reliable volunteer computing (VC), this paper implements and evaluates a prototype VC system with credibility-based voting. The credibility-based voting is known as an efficient technique for eliminating incorrect calculation results. Although its theoretical performance has studied in detail and is shown to be better than a popular voting method, its real performance has not been evaluated yet. The implemented prototype VC system consists of a management server and a number of worker nodes. In the management server, each process including the credibility-based voting is multithreaded, and all information are managed in a database (DB). It is found by performance evaluations that the credibility-based voting is most time-consuming all processes and the main cause is DB access. It is also shown that the multithreading is effective to reduce the waiting time of the credibility-based voting, thus reducing the overall execution time of VC.
Prototypes, Instruction sets, Servers, Computational modeling, Sockets, Multithreading, Reliability

S. Takeshi and M. Fukushi, "Implementation of a Reliable Volunteer Computing System with Credibility-Based Voting," 2014 Second International Symposium on Computing and Networking (CANDAR), Shizuoka, Japan, 2014, pp. 354-359.
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