The Multiprocessor EMPRESS: A Useful Tool for Studying Parallelization Concepts.
Hans-Joerg Brundiers, R. E. Buehrer, Hansmartin Friess, Milan Tadian · Proceedings of the International Conference on Parallel Processing · 1983
This study describes preliminary results of general interest based on first utilization of the multiprocessor Empress of the Eth Zurich. To carry out the study, an electrical-engineering reference problem was solved in the parallel mode using the parallelized version of the program PSCSP (which numerically simulates continuous systems using the integration method of Taylor series). Results are presented for the following asynchronous parallelization concepts: single-stage parallelization; double-stage parallelization; improved single-stage parallelization using a new parallel algorithm for Taylor series and a partially distributed control of the parallel processes and double-stage parallelization, simulation of optimal hardware by scaling the instruction timing. Two further parallelization methods are proposed to be tested on Empress; these are nearly completely distributed control of parallel processes, and complete prescheduling and synchronous operation. 2 references.