アクセラレータを搭載した PC クラスタのための仮想環境の実装と評価

概要

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PC clusters including accelerators such as Cell/B.E. and GPU became popular computing system to achieve high- performance maintaining low-energy consumption. One of serious problems to use these systems is the difficult imple- mentation of the parallel programming. This paper proposes a virtualization environment to hide data communications among computing nodes each of which has an accelerator to reduce implementation costs. Programmers using this envi- ronment can use multiple nodes by implementing a program for a single node. Virtualization environments for Cell/B.E. and GPU cluster are discussed about the influence for the performance.