A Machine Learning Approach for Optimizing Parallel Logic Simulation
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Bibliographic record
Abstract
Parallel discrete event simulation can be applied as a fast and cost effective approach for the gate level simulation of current VLSI circuits. In this paper we combine a dynamic load balancing algorithm and a bounded window algorithm for optimistic gate level simulation. The bounded time window prevents the simulation from being too optimistic and from excessive rollbacks. We utilize a machine learning algorithm (Q-learning) to effect this combination. We introduce two dynamic load-balancing algorithms for balancing the communication and computational load and use two learning agents to combine these algorithms. One learning agent combines the two learning algorithms and learns their corresponding parameters, while the second optimizes the value of the time window. Experimental results show up to a 46% improvement in the simulation time using this combined algorithm for several open source circuits. To the best of our knowledge, this is the first time that Q-learning has been used to optimize an optimistic gate level simulation.
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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 | 0.001 | 0.001 |
| 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) | 0.001 | 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