Abstract
Co-optimization for memory bank compilation and placement was suggested as a way to improve performance and power and reduce the size of a memory subsystem. First, a multi-configuration SRAM compiler was realized that could generate memory banks with different PPA by splitting or merging, upsizing or downsizing, threshold swapping, and aspect ratio deformation. Then, a timing margin estimation method was proposed for the memory bank based on placed positions. Through an exhaustive enumeration of various configuration parameters under the constraint of timing margins, the best SRAM memory compilation configuration was found. This method could be integrated into the existing physical design flow. The experimental results showed that this method achieved up to an 11.1% power reduction and a 7.6% critical path delay reduction compared with the traditional design method.
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