Synthesizing Synchronous Systems by Static Scheduling in Space-Time

Synthesizing Synchronous Systems by Static Scheduling in Space-Time

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The subject of this book is the synthesis of synchronous hardware. The purpose is to provide a firm mathematical foundation for the so-called space-time mapping methods for hardware synthesis that have been proposed during the last few years. Thus the treatment is fairly mathematical. In a space-time mapping method, an algorithm is described as a set of atomic events, with possible data dependencies between them. The task is to find a mapping, assigning a space-time coordinate to each event, so that causality is not violated and the solution is qgoodq. Previous work in the area, if it provided any formalism at all, has relied mainly on uniform recurrence equations, extensions thereof, or on purely graph-theoretic formulations. In this project algebra is used instead and the close connection with single-assignment languages is stressed. Thus it is possible to generalize previous work and to give simple characterizations of the type of algorithms that can be implemented with space-time mappings. The results presented can be applied to hardware construction and compiler techniques for parallel computers.Result: 6ra(zm_i, ..., i0) = Ella a(k)ujk, j = Ap^=0^_n2n (binary reversed order) The operations involved are addition and ... (Sj, X, -) is especially interesting, since it has an advantage with respect to wiring; all connections are local in space.

Title:Synthesizing Synchronous Systems by Static Scheduling in Space-Time
Author:Björn Lisper
Publisher:Springer Science & Business Media - 1989-05-10


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