ABSTRACT
HA-PACS base cluster is mainly used for fundamental physics and advanced scientific code, mainly by academia. The primary target area in the first stage includes particle physics, astrophysics, and bioscience. HA-PACS base cluster is challenged to provide a very compact and well-balanced large-scale GPU cluster supported by the latest CPU (Intel E5) for a balanced number of the latest CPUs with plenty of I/O bandwidth. While the HA-PACS project targets a wide variety of scientific fields, it focuses on the following application fields in the early stages of the project. Quantum Chromo-Dynamics (QCD) is one of the toughest and most challenging applications in the state-of-the-art high-end systems so far. The simulation for generating QCD configuration requires a large-scale parallel computation, and it is needed to provide short latency communication as well as high bandwidth for strong scaling solutions. This computation characteristic is satisfied partially by the Tightly Coupled Accelerators (TCA) feature of HA-PACS.
