MRI: Development of high-performance computing facility for gravitational-wave data analysis

激光干涉仪引力波天文台(LIGO)是美国国家科学基金会资助的探测引力波的项目。该奖项支持设计、开发、建造、调试和运行增强的计算设施，以搜索LIGO数据流中来自天体物理源和仪器异常的微弱信号。增强的设施将(I)使用经济高效、高性价比的选择将威斯康星大学密尔沃基分校(UWM)的LIGO第二层中心的计算能力提高四倍，(Ii)将威斯康星大学密尔沃基分校的LIGO第二层中心的存储容量增加一倍以上，以及(Iii)提供从UWM的LIGO第二层中心到园区主干的10千兆位以太网连接，以消除LIGO数据网格的通信瓶颈。威斯康星大学密尔沃基分校的LIGO第二层中心向包括本科生和研究生在内的所有LIGO科学协作成员开放。研究活动将解决网络基础设施和引力物理方面的问题。增强的计算设施将允许对更广泛种类的信号进行更深层次和更密集的搜索，并可能实现有史以来第一次直接探测引力波。该奖项下的仪器开发将对威斯康星大学和全国其他机构的本科生、研究生和博士后科学家的教育和培训产生相当大的影响。本科生将参与仪器开发和相关的研究计划，提供大规模分布式计算方面的特殊实践培训。通过开放科学网格，非LIGO科学家也可以使用这些计算设施，从而增加了国家科学研究的网络基础设施。

The Laser Interferometer Gravitational-Wave Observatory (LIGO) is an NSF-funded project to detect gravitational waves. This award supports the design, development, construction, commissioning and operation of an enhanced computational facility to search the LIGO data stream for weak signals from astrophysical sources and instrumental anomalies. The enhanced facilities will (i) quadruple the computational capacity of the LIGO Tier-2 center at University of Wisconsin-Milwaukee (UWM) using cost-effective, high performance/price choices, (ii) more than double the storage capacity of the LIGO Tier-2 center at UWM, and (iii) provide a 10 Gigabit Ethernet connection from the LIGO Tier-2 center at UWM to the campus backbone to remove communication bottlenecks from the LIGO Data Grid.The LIGO Tier-2 center at UWM is available to all members of the LIGO Scientific Collaboration, including undergraduate and graduate students. Research activities will address issues in cyber-infrastructure and gravitational physics. The enhanced computational facilities will permit deeper and more intensive searches for a wider variety of signals, and may enable the first-ever direct detection of gravitational waves. The instrument development under this award will have considerable impact on the education and training of undergraduates, graduate students and post-doctoral scientists at UWM and other institutions around the nation. Undergraduate students will be involved in both the instrument development and the associated research program providing exceptional hands-on training in large-scale distributed computing. Access to these computational facilities is also provided via the Open Science Grid for non-LIGO scientists thus adding to the national cyber-infrastructure for scientific research.