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We introduce in this paper, OpenTimer, an open-source timing analysis tool that efficiently supports (1) both block-based and path-based timing propagations, (2) common path pessimism removal (CPPR), and (3) incremental processing. OpenTimer works on industry formats (e.g., .v, .spef, .lib, .sdc) and is designed to be parallel and portable. To further facilitate integration between timing and other...
Incremental path-based timing analysis (PBA) is a pivotal step in the timing optimization flow. A core building block analyzes the timing path-by-path subject to a critical amount of incremental changes on the design. However, this process in nature demands an extremely high computational complexity and has been a major bottleneck in accelerating timing closure. Therefore, we introduce in this paper...
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