Abstract
The SIMD (single instruction, multiple data) control style achieves a very cost effective processor element (PE) control mechanism. In this paper, two efficient data transfer operations for a SIMD PE array processor are proposed to address the inefficiency of most SIMD processor arrays in performing irregular memory access per PE. First, the SIMD random access provides simultaneous data transfer of randomly, from each PE independently addressed elements. Second, the SIMD ROI (region of interest) access enables concurrent data transfer of ROI areas with optional different ROI parameters for each PE. Speed-up values for both new transfer operations show an at least six times faster execution and the synthesis output reports an area increase of merely 1% for a 32 PE SIMD array processor configuration.
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