Proceedings. 1998 International Conference on Parallel Architectures and Compilation Techniques (Cat. No.98EX192) (1998)
Oct. 12, 1998 to Oct. 18, 1998
Wissam Hlayhel , IRIT-UPS
Daniel Litaize , IRIT-UPS
Laurent Fesquet , LAAS CNRS
Jacques Collet , LAAS CNRS
The fast evolution of processor performance necessitates a permanent evolution of all the multiprocessor components, even for small to medium-scale symmetric multiprocessors (SMP) build around shared busses. This kind of multiprocessor is especially attractive because the problem of data coherency in caches can be solved by a class of snooping protocols specific to these shared-bus architecture. But the bandwidth demand, especially for the addresses, is becoming so important that a technological step must be considered. Optical communications are becoming mature, and bring a huge information bandwidth through the implementation of optical busses. This paper is focused on the address bandwidth needed by shared-bus SMP without suggesting a complete solution. We show that an optical address bus can fulfill the bandwidth demand of future SMPs contrarily to standard electronic busses.
Bandwidth requirement, SMP architecture, shared bus, optical bus
W. Hlayhel, L. Fesquet, J. Collet and D. Litaize, "Optical Bus versus Electronic Bus for Address-Transactions in Future SMP Architectures," Proceedings. 1998 International Conference on Parallel Architectures and Compilation Techniques (Cat. No.98EX192)(PACT), Paris, France, 1998, pp. 22.