Hierarchical Bit-Map Directory Schemes on the RDT Interconnection Network for a Massively Parallel Processor JUMP-1. - Tomohiro Kudoh; Hideharu Amano; Takashi Matsumoto 002; Kei Hiraki; Yulu Yang; Katsunobu Nishimura; Koichi Yoshimura; Yasuhito Fukushima (ICPP (1), 1995)