Towards Serial-Equivalent Parallel Routing for FPGAs: (Abstract Only)

Serial equivalency can provide easier regression testing and customer support in production-grade CAD software. While existing parallel routing techniques have become sufficiently advanced to accelerate the execution time, support for serial equivalency has been very limited or ignored due to it was considered costly. In this paper, we propose serial-equivalent parallel routing for FPGAs. We use an optimal dependency-aware scheduling to facilitate serial equivalency of parallel routing algorithm. This capability enables the same answer as the serial version of the parallel algorithm, regardless of how many processing cores are used. We also validate this property across different hardware platforms. Further experimental results show that we achieve a 14.27x speedup on the MPI-based distributed parallel computer and a 19.65x speedup on the GPU-based massively parallel machine. To our knowledge, it is the first parallel routing with a serial equivalency guarantee.