The LOw-Frequency ARray is a low-frequency radio interferometer composed by observational stations spread across Europe and it is the largest precursor of SKA in terms of effective area and generated data rates. In 2018, the Italian community officially joined LOFAR project, and it deployed a distributed computing and storage infrastructure dedicated to LOFAR data analysis. The infrastructure is based on 4 nodes distributed in different Italian locations and it offers services for pipelines execution, storage of final and intermediate results and support for the use of the software and infrastructure. As the analysis of the LOw-Frequency ARray data requires a very complex computational procedure, a container-based approach has been adopted to distribute software environments to the different computing resources. A science platform approach is used to facilitate interactive access to computational resources. In this paper, we describe the architecture and main features of the infrastructure.
翻译:LOW-Ference ARray是一种低频无线电干涉仪,由遍布欧洲各地的观测站组成,是SKA在有效面积和生成数据率方面最大的先兆;2018年,意大利社区正式加入LOFAR项目,并部署了分布式计算和储存基础设施,专门用于LOFAR数据分析;该基础设施以分布在意大利不同地点的4个节点为基础,提供管道执行、最后和中间结果储存以及软件和基础设施使用支持服务;由于对LOW-Frequine Array数据的分析需要非常复杂的计算程序,因此采取了以集装箱为基础的方法,向不同的计算资源分配软件环境;利用科学平台方法便利互动利用计算资源;在本文件中,我们介绍了基础设施的结构和主要特点。