Radio Synthesis Imaging: An HPCC Application

大挑战应用小组竞赛为支持科学家和工程师组成的多学科团队提供了一种机制，以实现1992财政年度高性能计算和通信（HPCC）计划的目标。理想的提议不仅在科学上卓越，在科学和工程的一个关键领域有可能产生重大影响的集中问题，但在科学和计算活动之间也有重要的相互作用，通常涉及数学、计算机或计算科学家；这将对正在研究的特定科学或工程问题领域或学科之外的高性能计算活动产生影响。本提案是为了直接实施天文学和天体物理调查委员会提出的三项计算建议。它将实现下一代天文望远镜系统的原型——远程望远镜通过高速网络连接到非常高性能、可扩展的架构计算机和在线数据档案。将优化用于无线电综合阵列观测校准和成像的计算密集型算法，并开发利用大规模并行CM-5的新算法。

The Grand Challenge Application Groups competition provides one mechanism for the support of multidisciplinary teams of scientists and engineers to meet the goals of the High Performance Computing and Communications (HPCC) Initiative in Fiscal Year 1992. The ideal proposal provided not only excellence in science: focussed problem with potential for substantial impact in a critical area of science and engineering but also significant interactions between scientific and comptational activities, usually involving mathematical, computer or computational scientists, that would have impact in high-performance computational activity beyond the specific scientific or engineering problem area(s) or discipline being studied. This proposal is for the direct implementation of three computing recommendations of the Astronomy and Astrophyusics Survey Committee. It will implement a prototype of the next generation of astronomical telescope systems - remotely located telescopes connected by high speed networks to very high performance, scalable architecture computers and on-line data archives. The very computationally intensive algorithms for calibration and imaging of radio syntheseis array observations will be optimized and new algorithms which utilize the massively parallel CM-5 will be developed.