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General-purpose systolic arrays

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3 Author(s)
Johnson, K.T. ; Pennsylvania State Univ., University Park, PA, USA ; Hurson, A.R. ; Shirazi, B.

The extension of systolic array architecture from fixed- or special-purpose architectures to general-purpose, SIMD (single-instruction stream, multiple-data stream), MIMD (multiple-instruction stream, multiple-data stream) architectures, and hybrid architectures that combine both commercial and FPGA (field-programmable gate array) technologies is chronicled. The authors present a taxonomy for systolic organizations, discuss each architecture's methods of exploiting concurrencies, and compare performance attributes of each. The authors also describe a number of implementation issues that determine a systolic array's performance efficiency, such as algorithms and mapping, system integration through memory subsystems, cell granularity, and extensibility to a wide variety of topologies.<>

Published in:

Computer  (Volume:26 ,  Issue: 11 )