⚡ 本页包含 AI 生成的分析内容，仅供参考
本文介绍了一款40nm工艺的16核128线程CMT SPARC SoC处理器（代号Rainbow Falls），通过集成16个增强的8线程SPARC核心，将片上线程数提升至前作UltraSparc T2+的两倍。该处理器在相同功耗范围内实现了更高的集成度与可扩展性，包括更大的L2缓存和更高的I/O带宽，解决了多核多线程处理器在高性能计算中的功耗与性能平衡问题。
Changku Hwang, Hongping Li, Alan Smith, Timothy Johnson, Francis Schumacher, David Greenhill, Ana Sonia Leon, Allan Strong Sun Microsystems, Santa Clara, CA This next generation of Chip Multithreaded (CMT) SPARC SoC processor, code named Rainbow Falls [1], doubles on-chip thread count over its predecessor the UltraSparc T2+. The chip offers high levels of integration and scalability with twice the number of cores, a larger L2 cache, and higher maximum I/O bandwidth, within the same power envelope. Sixteen 8-threaded enhanced SPARC cores (SPC) provide 128 threads in a single die, delivering the highest thread count for a general-purpose microprocessor. The new cache coherency further allows up to 4-way glueless systems with a total of 512 threads. Each core communicates with the unified 6MB L2 cache through a crossbar (CCX) delivering 461GB/s (Fig. 5.2.1). A gasket (CXG) is also introduced to manage the
Jinuk Luke Shin, Kenway Tam, Dawei Huang, Bruce Petrick, Ha Pham,