A High-Performance Routing Engine for Large-Scale FPGAs
Why this work is in the frame
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Bibliographic record
Abstract
Routing is the most time-consuming stage in the Field Programmable Gate Array (FPGA) design workflow. We propose a parallel routing technology, based on the Pathfinder algorithm, that enhances parallelism by dividing the search into two phases: one that tolerates overlaps and one that does not. Additional performance optimizations include an improved cost schedule, pruning the routing-resource graph, and selecting efficient data structures for modern CPUs. Evaluated using both the 2023 MLCAD and 2024 FPGA Routing Contest benchmarks, our router achieves average speedups of $6.2 \times$ and $5.2 \times$ compared to RWRoute and Vivado 2023.2, respectively.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it