Dependence Analysis and Architecture Design for Bit-Level Algorithms

:. In designing application-specific bit-level architectures and in programming existing bit-level processor arrays, it is necessary to expand a word-level algorithm into its bit-level form before dependence analysis can be performed. In this paper, we consider dependence structures of bit-level algorithms as functions of three components — dependence structures of word-level algorithms, dependence structures of the arithmetic algorithms implementing word-wise operations, and algorithm expansions. Based on these components, we can derive dependence structures of bit-level algorithms without using time consuming general dependence analysis methods. To illustrate our approach, we derive two dependence structures for bit-level matrix multiplication and apply a method developed earlier [5,6,10] to design two bit-level architectures. One of these architectures is O(p) times faster than the best word-level architecture, where p is the word length. The speedup we found here is true in gene...

• Type: Conference
• Year: 1993
• Where: ICPP
• Authors: Weijia Shang, Benjamin W. Wah
• Keywords: Bit-level Architecture, Dependence Analysis, Dependence Structures, Distributed And Parallel Computing, ICPP 1993