@techreport{oai:ipsj.ixsq.nii.ac.jp:00071479,
 author = {池上, 努 and 高野, 了成 and 田中, 良夫 and 中田, 秀基 and 関口, 智嗣 and Tsutomu, Ikegami and Ryousei, Takano and Yoshio, Tanaka and Hidemoto, Nakada and Satoshi, Sekiguchi},
 issue = {14},
 month = {Dec},
 note = {クラウド資源を活用した高性能計算 (HPC) の可能性を探るため、仮想化が計算機性能に及ぼす影響を、ディスク IO、MPI 通信性能、計算性能のそれぞれについて調べた。ディスク IO 性能は準仮想化環境で実ハードウェアと遜色ない性能を示した。計算性能に対する仮想化のオーバヘッドはアプリケーションに依存するものの、5 ～ 15% 程度に収まった。一方、計算ノードを 16 個用意して MPI 通信性能を計測すると、最善でも実ハードウェアの半分程度に止まった。現状の仮想化環境における MPI 性能は細粒度並列のアプリケーションでは実用的とは言えず、今後の改善が期待される。, The feasibility of the cloud computing in the field of high performance computing was assessed by surveying the performance of a virtual machine. Namely, the penalties of the virtualization on the disk I/O, MPI communication, and computational performances were measured by comparing with those on the real machine. The disk I/O performance of a para-virtual machine was found to be comparable to the real one. The overhead of the virtualization on the computational performance was as low as 5 ～ 15 %, depending on the type of applications. On the other hand, the MPI communication throughput measured at 16 nodes was a half of the real machines, at best. The MPI communication in the present virtual environment is not powerful enough for fine-grained parallel applications, where further developments are wanted.},
 title = {クラウドコンピューティングの性能評価},
 year = {2010}
}