Hybrid Cluster Computing Hardware and Software in the LOFAR Radio Telescope

机译：LOFAR射电望远镜中的混合群集计算硬件和软件

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LOFAR is a distributed wide area sensor network, which is used for radio astronomical observations as well as for geophysical and agricultural applications. This giant signal processing machine contains a central processor facility with an equivalent capacity of >20 Tflops based on hybrid cluster computer techniques. The cluster geometry is optimised for near realtime processing of streaming data. Switch fabric technology is used for scalability to 1024+ nodes. Flexible usage of the cluster is provided through an application development framework that provides run-time mapping of logical application steps and connections to actual available hardware resources. Quality of service of the processing facility is optimised through mapping algorithms that adapt to the actual status of the resources in the cluster, thus providing performance optimisation, load balancing and fault tolerance.

机译：LOFAR是一个分布式的广域传感器网络，用于射电天文观测以及地球物理和农业应用。这台巨型信号处理机包含一个基于混合集群计算机技术的中央处理器，其等效容量大于20 Tflops。集群的几何形状已针对流数据的近实时处理进行了优化。交换矩阵技术用于可扩展到1024个以上的节点。通过应用程序开发框架可以灵活地使用群集，该框架提供了逻辑应用程序步骤的运行时映射以及到实际可用硬件资源的连接。通过适应群集中资源实际状态的映射算法，可以优化处理设施的服务质量，从而提供性能优化，负载平衡和容错能力。

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《International Conference on Parallel and Distributed Processing Techniques and Applications(PDPTA'03) v.2; 20030623-20030626; Las Vegas,NV; US》|2003年|P.695-701|共7页
会议地点 Las Vegas NV(US);Las Vegas NV(US)
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K. v.d. Schaaf; J.D. Bregman; C.M. de Vos;
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ASTRON, P.O. Box 2, 7990 AA Dwingeloo, The Netherlands;

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正文语种 eng
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机译：使用成本约束的射电望远镜设计优化：将LOFAR成本推算到平方公里阵列
2. Probing ionospheric structures using the LOFAR radio telescope [J] . M. Mevius, S. van der Tol, V. N. Pandey, Radio Science . 2016,第7期

机译：使用LOFAR射电望远镜探测电离层结构
3. Probing ionospheric structures using the LOFAR radio telescope [J] . Mevius M., van der Tol S., Pandey V. N., Radio Science . 2016,第7a8期

机译：使用LOFAR射电望远镜探测电离层结构
4. New software and hardware controlling complex of the UTR-2 radio telescope [C] . Bortsov V.V., Lisachenko V.M., Reznichenko A.M., International Conference on Antenna Theory and Techniques . 2015

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5. Cloud Versus Bare Metal a Comparison of a High Performance Computing Cluster Running in a Commercial Cloud and on a Traditional Hardware Cluster Using OpenMP and OpenMPI [D] . Bilaniuk, Vicky 2019

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6. Experimental Verification of the Concept of Using LOFAR Radio-Telescopes as Receivers in Passive Radiolocation Systems [O] . Julia Kłos, Konrad Jędrzejewski, Aleksander Droszcz, 2021

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7. FPGA Cluster Computing in the ETA Radio Telescope [O] . C. Patterson, B. Martin, S. Ellingso 2015

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8. LOFAR Scientific Memorandum Number 1: Cluster-Formation Synchrotron Radiation. A Contaminant for Epoch of Reionization Experiments and a Signal for Probing Cluster Formation and the Gamma-Ray Background [R] . Lazio, T. J. , Cordes, J. M. 2002

机译：LOFaR科学备忘录第1号：簇形成同步辐射。一种用于再电离实验时代的污染物和用于探测团簇形成和γ射线背景的信号

Hybrid Cluster Computing Hardware and Software in the LOFAR Radio Telescope

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