EDA

A circuit simulator normally moves forward one small step at a time. Calculate the voltages now. Advance the clock. Calculate them again. Repeat until the simulated waveform reaches the end of the requested interval—or until the solver discovers a particularly creative reason to stop converging. NeuroSPICE proposes a different arrangement. Instead of calculating a circuit’s state sequentially across discrete time steps, it trains a neural network to represent the circuit’s entire waveform as a continuous function of time.1 ...

A chip does not need to fail everywhere to fail badly A modern AI accelerator is not fragile in the poetic sense. It is not a porcelain teacup trembling on the edge of a desk. It is much more annoying than that. It can run billions of parameters at high throughput, survive ordinary engineering noise, and still contain a few small fault locations where one carefully placed disturbance can turn a capable model into expensive decorative silicon. The problem is not that every bit matters equally. The problem is that a few bits may matter absurdly more than the rest. ...

Benchmarks Are Where Models Stop Being Inspirational Benchmarks are not glamorous. They are where models go after the demo video, after the conference slide, and after the sentence “this generalizes beautifully” has done its little dance in front of investors. Graph learning badly needs that room. For years, graph machine learning has been evaluated on comfortable territory: molecular graphs, citation networks, small academic datasets, and carefully packaged tasks that are useful but narrow. That helped the field grow. It also created a quiet distortion. A model could look impressive while never having to deal with a social network that changes over time, a circuit whose tiny structural error destroys correctness, a SAT instance where solver choice matters, or a weather graph where the planet is inconveniently spherical. ...

Hardware design has a rather unforgiving relationship with “almost right”. A chatbot can produce a slightly clumsy paragraph and survive the incident. A Verilog module that mishandles reset logic, races a signal, or politely misunderstands concurrency does not get partial credit from physics. It fails simulation, or worse, passes the wrong simulation and then becomes a very expensive archaeology project later in the design flow. ...