Computing Environment

        High Energy Physics involves huge amounts of data, and relies on compute-intensive international cooperation. These features greatly promote the development of network and computer technology. In order to meet the computing and storage requirements of high-energy physics, IHEP's Computing Center has been at the frontier of high-performance computing, mass storage systems, high-speed networks and network security research and application for many years. In fact, IHEP is a real pioneer, as it was the first institution with an Internet link in China, the first to start using email, and the first to create its own website. In high performance computing, the Computing Center is committed to using all kinds of advanced distributed computing technologies and platforms for high-energy physics computing services: a 10000 CPU-scale high-performance cluster computing environment, which contributes to the international High Energy Physics Grid Computing initiative LCG, a high throughput data-intensive computing platform. The Computing Centre is also promoting the popular trend of volunteer computing in high energy physics applications through CAS@home. Mass storage in the Computing Centre includes 5PB (PB = Petabyte = 1 million Gigabytes) storage capacity of massive hierarchical storage system CASTOR, the Lustre system with 3PB storage scale distributed parallel file system, 300TB (TB = Terabyte = 1000 Gigabytes) of storage capacity DPM mass storage system, 300TB of storage capacity the dCache mass storage systems, in addition to many terabytes of NFS, AFS distributed file system. At present, the Computing Center also provides more convenient and scalable cloud computing power to its research users in the fields of high-energy physicists.