Hot spot contention and message combining in the simple serial synchronized multistage interconnection network

Toshihiro Hanawa, Takashi Fujiwara, Hideharu Amano

Research output: Contribution to journalConference article

1 Citation (Scopus)


Simple Serial Synchronized (SSS) Multistage Interconnection Network (MIN) is a novel MIN architecture for connecting processors and memory modules in multiprocessors. Synchronized bit-serial communication simplifies the structure/control, and permits the bit-serial message combining mechanism. From the theoretical analysis and empirical results, it appears that the influence of the hot spot contention is not catastrophic in the small size SSS-MIN (16×16) when some parallel programs from SPLASH benchmark run. In this situation, the effect of the message combining is small. However, in a large system (256 processors), the pass through ratio improves by 11% when a parallel program with relatively large access ratio (r = 0.4) runs. Since the additional hardware for the message combining is only 20% in the SSS-MIN, the message combining is useful in large systems.

Original languageEnglish
Pages (from-to)298-305
Number of pages8
JournalIEEE Symposium on Parallel and Distributed Processing - Proceedings
Publication statusPublished - 1996 Dec 1
EventProceedings of the 1996 8th IEEE Symposium on Parallel and Distributed Processing - New Orleans, LA, USA
Duration: 1996 Oct 231996 Oct 26


ASJC Scopus subject areas

  • Engineering(all)

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