点阵QCD的求解环境

5th International Conference on Computer Sciences and Convergence Information Technology Pub Date : 2010-11-01 DOI:10.1109/ICCIT.2010.5711066

S. Motoki, A. Nakamura

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引用次数: 1

摘要

我们报告了我们在Cell/B.E.上开发QCD(量子色动力学)代码时学到的东西，即实现高效高性能程序的必要程序和阻止Cell/B.E达到峰值性能的障碍。我们发现我们几乎可以达到机器的峰值性能，瓶颈是内存带宽，它降低了大约十分之一的效率。我们讨论了构建令人满意的QCD问题求解环境的下一步任务。

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Problem solving environment of lattice QCD

We report what we learned in developing a QCD (Quantum Chromo Dynamics) code on Cell/B.E., i.e., necessary procedures to realize an efficient high performing program and an obstacle to prevent the peak performance of the Cell/B.E.. We found that we can almost reach to the machine peak performance, and the bottle-neck is the memory bandwidth which reduces the efficiency about one tenth. We discuss the next task for constructing a satisfactory problem solving environment of QCD.

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5th International Conference on Computer Sciences and Convergence Information Technology

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