| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Outline of Final Research Achievements |
In peer-to-peer (P2P) systems, application processes have to be reliably performed in presence of server faults. One way to make an application service fault-tolerant is that multiple replicas of each application process are performed on multiple peers. On the other hand, a larger amount of electric energy is consumed since multiple replicas of each application process are performed on multiple peers to make application services fault-tolerant. It is critical to discuss how to realize not only fault-tolerant but also energy-efficient P2P systems to provide application services. In this study, the computation model and power consumption models of a peer to perform computation processes are defined. Based on the models, the energy-efficient server selection algorithms to select multiple servers for redundantly performing replicas of each computation process are proposed.
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