Abstract
The development of modern astronomy is rapidly and astronomical data increases exponentially. The HPC architecture based on GPU provides an efficient way of astronomic big data computing. Based on secure Ipv6 network environment, PMO has constructed the Big Data Analysis and Multi-dimensional Information Visualization Platform, which can reach the peak computing speed of 352Tflops and the totally storage capacity of 288TB. The platform is composed of 25 computing nodes, one management node and 5 storage nodes. The use of user-friendly, centralized cluster management software, the deployment of proprietary environmental control settings and multi-dimensional visualization of safety management systems form a multi-level, tridimensional and efficient management structure. A high-speed, high-capacity, highly reliable, secure and efficient high-performance computing cluster is finally constructed. The platform has a fully redundant, self-healing, highly scalable distributed storage system, a high-performance InfiniBand parallel computing and storage network, a complete job scheduling system, a cuda parallel computing architecture, and a variety of physical software tools for astronomical applications. It offers a great help to astronomical research topics such as astronomical image processing, moving target extraction, space target orbit calculation, numerical cosmology, cosmology simulation, galaxy fluid simulation. Thus it provides an important information support for the research work of 3 major breakthroughs and 5 key cultivation directions in the "One Three Five" plan of Purple Mountain Observatory.
Highlights
According to the characteristics of astronomy, astronomy mainly collects various kinds of information about celestial bodies through observation
The air conditioner, power distribution, cabinets, and temperature and humidity monitoring of the cluster are deployed in an integrated manner, and the circulating cooling in the cabinet is adopted, we can effectively remove the bottleneck of high-density refrigeration and reduce the dependence on the environment of the equipment room
Based on Astronomical Big Data Analysis and Multi-dimensional Information Visualization Platform, many important and innovative research progresses have been made in terms of image processing and analysis and numerical simulation
Summary
According to the characteristics of astronomy, astronomy mainly collects various kinds of information about celestial bodies through observation. Mass data requires extremely high data processing efficiency and we can’t perform the processing and calculations without GPU supercomputing system which is suitable for preprocessing calculations of astronomical observation images, especially basic image. The management network, supporting infrastructure, and security equipment are deployed to ensure the stable operation of the platform and the information security of valuable astronomical data The construction of this system is of great significance to the most important astronomical research and implementation of large-scale projects in Purple Mountain Observatory (or PMO, for short). The construction of Astronomical Big Data Analysis and Multi-dimensional Information Visualization Platform will solve the problem of efficient processing of mass data, especially image data, and establish a super-computing and visualization environment adapted to the development of modern astronomy
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