Overview of the Blue Gene/L system architecture

A. Gara, M. A. Blumrich, D. Chen, G. L.-T. Chiu, P. Coteus, M. E. Giampapa, R. A. Haring, P. Heidelberger, D. Hoenicke, G. V. Kopcsay, T. A. Liebsch, M. Ohmacht (+3 others)
2005 IBM Journal of Research and Development  
The Blue Genet/L computer is a massively parallel supercomputer based on IBM system-on-a-chip technology. It is designed to scale to 65,536 dual-processor nodes, with a peak performance of 360 teraflops. This paper describes the project objectives and provides an overview of the system architecture that resulted. We discuss our application-based approach and rationale for a low-power, highly integrated design. The key architectural features of Blue Gene/L are introduced in this paper: the link
more » ... hip component and five Blue Gene/L networks, the PowerPCt 440 core and floatingpoint enhancements, the on-chip and off-chip distributed memory system, the node-and system-level design for high reliability, and the comprehensive approach to fault isolation.
doi:10.1147/rd.492.0195 fatcat:fod4gj7pbfgdxnd7nsxgfy4ini