This paper focuses on buffer management issues in wormhole-routed torus mul
ticomputer networks. The commonly used buffer organizations are the central
ized and dedicated buffer organizations. The results presented in this pape
r indicate that the dedicated buffer organization provides better performan
ce than the centralized organization under uniform traffic. Under high hot-
spot traffic, the centralized organization outperforms the dedicated. The h
ybrid buffer organization proposed in this paper inherits the merits of the
centralized and distributed organizations. Our results suggest that the hy
brid buffer organization can be designed to configure dynamically from the
dedicated to centralized depending on the traffic conditions. (C)2000 Elsev
ier Science B.V. All rights reserved.