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基于DCMI的轻量级数据中心服务器管理
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作者 曲箫扬 《电脑知识与技术(过刊)》 2010年第3X期1851-1853,共3页
DCMI(Data Center Manageability Interface),即数据中心管理接口,是一套专门针对IPDC(Internet Portal Data Centers互联网门户数据中心)和其他高密度数据中心部署的服务器平台管理接口。这一接口标准的制定,对未来数据中心管理成本的... DCMI(Data Center Manageability Interface),即数据中心管理接口,是一套专门针对IPDC(Internet Portal Data Centers互联网门户数据中心)和其他高密度数据中心部署的服务器平台管理接口。这一接口标准的制定,对未来数据中心管理成本的降低,运营效率的提高都有着重要的作用。在云计算时代即将到来,对高密度服务器集群需求量增加的今天,这一标准将会得到长足的发展和充分的应用。 展开更多
关键词 DCMI(data Center Manageability interface) 带内访问 带外监控
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An efficient parallel algorithm for ocean circulation numerical model based on irregular rectangle decomposition scheme
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作者 ZHUANG Zhanpeng YUAN Yeli +2 位作者 ZHANG Jie HAN Lei YANG Jungang 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2016年第5期18-23,共6页
A parallel algorithm of circulation numerical model based on message passing interface(MPI) is developed using serialization and an irregular rectangle decomposition scheme. Neighboring point exchange strategy(NPES... A parallel algorithm of circulation numerical model based on message passing interface(MPI) is developed using serialization and an irregular rectangle decomposition scheme. Neighboring point exchange strategy(NPES) is adopted to further enhance the computational efficiency. Two experiments are conducted on HP C7000 Blade System, the numerical results show that the parallel version with NPES(PVN) produces higher efficiency than the original parallel version(PV). The PVN achieves parallel efficiency in excess of 0.9 in the second experiment when the number of processors increases to 100, while the efficiency of PV decreases to 0.39 rapidly. The PVN of ocean circulation model is used in a fine-resolution regional simulation, which produces better results. The capability of universal implementation of this algorithm makes it applicable in many other ocean models potentially. 展开更多
关键词 irregular rectangle decomposition scheme message passing interface(MPI) neighboring point exchange strategy data communication
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STEP-based Feature Recognition System for B-spline Surface Features 被引量:2
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作者 Bitla Venu Venkateswara Rao Komma Deepanshu Srivastava 《International Journal of Automation and computing》 EI CSCD 2018年第4期500-512,共13页
The geometrical and topological information of 3D computer aided design (CAD) models should be represented as a neut- ral format file to exchange the data between different CAD systems. Exchange of 3D CAD model data... The geometrical and topological information of 3D computer aided design (CAD) models should be represented as a neut- ral format file to exchange the data between different CAD systems. Exchange of 3D CAD model data implies that the companies must exchange complete information about their products, all the way from design, manufacturing to inspection and shipping. This informa- tion should be available to each relevant partner over the entire life cycle of the product. This led to the development of an international standard organization (ISO) neutral format file named as standard for the exchange of product model data (STEP). It has been ob- served from the literature, the feature recognition systems developed were identified as planar, cylindrical, conical and to some extent spherical and toroidal surfaces. The advanced surface features such as B-spline and its subtypes are not identified. Therefore, in this work, a STEP-based feature recognition system is developed to recognize t--spline surface features and its sub-types from the 3D CAD model represented in AP203 neutral file format. The developed feature recognition system is implemented in Java programming language and the product model data represented in STEP AP203 format is interpreted through Java standard data access interface (JSDAI). The developed system could recognize B-spline surface features such as B-Spline surface with knots, quasi uniform surface, uniform surface, rational surface and Bezier surface. The application of extracted B-spline surface features information is discussed with reference to the toolpath generation for STEP-NC (STEP AP238). 展开更多
关键词 Feature recognition 3D computer aided design(CAD)model geometrical information standard for the exchange ofproduct model data(STEP)AP203 Java standard data access interface(JSDAI).
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