Communication and Performance Trade-offs in a Systolic Machine

Denis ArchambaudIvan Saraiva SilvaPascal Faudemay

This paper presents the trade-offs concerning lnput-Output communications ar the interface of a SIMD systolic machine, and inside the machine. These problems have been raised by the acce/erating board we are currently designing . We discuss about the issues involved by VLSJ design: cascadability, scalability, fault tolerance, and feasibility. We present the main features of our architecture, and the performances measured with an actual application which proves that despire of the host computer slowness, the I/0 bottleneck is not a penalty for the calculation acceleration.

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