构建丛集系统实现复杂地下工程数值模拟

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摘要研究目的:随着计算机科技的飞速发展，实现复杂地下工程三维数值模拟已成为可能。但由于个人计算机处理能力和运算速度有限，又由于配置超级计算机费用高昂，使得具有构造简单、造价低、扩展性好等特点的个人计算机丛集系统成为普通用户的首选方案。为此，开展个人计算机丛集系统构建研究，对构建的丛集系统进行了性能测试，并运用丛集系统，实现厦门嘉禾园地下通道工程的多单元多工况复杂地下工程数值模拟。

研究结论:(1)个人计算机丛集系统具有极高的灵活性，可依需求随时扩充;(2)对于单机可以处理的问题，丛集系统不占优势，但对于多单元多工况的大规模岩土工程三维数值模拟，丛集系统具有实现性和运算速度优势，大大提高了工作效率;(3)嘉禾园地下通道工程多单元多工况数值模拟的实现，不仅指导了该通道的施工，也验证了丛集系统在大规模三维数值模拟方面具有的优势;(4)以个人计算机为基础，研究构建的丛集系统，可以实现复杂大规模地下工程数值模拟，为地下工程工作者开展此类研究提供了-种便捷廉价的解决方案。

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	杜俊
	梅志荣

关键词 ：个人计算机丛集系统, 计算时间, 数值模拟, 地下工程

Abstract：Research purposes:With the rapid development of computer technology，it is possible to achieve the complex three-dimensional numerical simulation of underground engineering. However, due to limited processing power and speed of the personal computer and a high cost of supercomputer configuration，the construction of PC cluster system which has a simple structure，low cost and good scalability characteristics is preferred as a normal user. For these reasons，the research on building PC cluster system was carried out，the performance test of PC cluster system was completed and the numerical simulation of Jiaheyuan underground engineering which had multi-units and different working conditions was achieved by using cluster system.

Research conclusions:(1)PC cluster system has high flexibility，and can be expanded in accordance with needs. (2)For the problem which a single computer can handle，PC cluster system is not dominant. But，for larger three- dimensional numerical simulation of geotechnical engineering，PC cluster system has advantages in realizability and operational speed，greatly improving working efficiency.(3)Realization of numerical simulation of Jiaheyuan underground engineering，not only guides the construction of this engineering，but also verifies that PC cluster system has the advantage in large scale three-dimensional numerical simulation. (4)PC cluster systems based on the personal computers make the complex numerical simulation of underground engineering achieve. It provides a convenient and cheap solution for underground engineers.

Key words： PC cluster system calculation time numerical simulation underground engineering

收稿日期: 2013-11-04

PACS:

TU18

作者简介: 杜俊，1983年出生，男，工程师;梅志荣，1953年出生，男，研究员

引用本文:

杜俊,梅志荣. 构建丛集系统实现复杂地下工程数值模拟[J]. 铁道工程学报, 2014, 31(7): 78-83.
DU Jun,MEI Zhi-rong. BridgBuilding PC Cluster System to Achieve the Complex Numerical Simulation of Underground Engineeringe. 铁道工程学报, 2014, 31(7): 78-83.

链接本文:

http://tdgcxb.crec.cn/CN/ 或 http://tdgcxb.crec.cn/CN/Y2014/V31/I7/78

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