Author's Latest Posts


Industry Pressure Grows For Simulating Systems Of Systems


Most complex systems are designed in a top-down manner, but as the amount of electronic content in those systems increases, so does the pressure on the chip industry to provide high-level models and simulation capabilities. Those models either do not exist today, or they exist in isolation. No matter how capable a model or simulator, there never will be one that can do it all. In some cases,... » read more

What Happened To Portable Stimulus?


In June 2018, Accellera released the initial version of the Portable Test and Stimulus Standard (PSS), a new verification language that was slated to be the first new abstraction defined within EDA for a couple of decades. So what happened to it? Apart from a few updates at DVCon, there appears to be little talk about it today. However, the industry has its head down trying to make it work, ... » read more

The Race Toward Quantum Advantage


Quantum computing has yet to show an advantage over conventional computing, but huge sums of money are betting it will. So far that hasn't happened. Early quantum computers were created in the mid-1990s after mathematicians had demonstrated the effectiveness of applying quantum approaches to some problems. At that stage they were simulated using conventional computing, but it started the rac... » read more

New Concepts Required For Security Verification


Verification for security requires new practices in both the development and verification flows, but tools and methodologies to enable this are rudimentary today. Flows are becoming more complex, especially when they span multiple development groups. Security is special in that it is pervasive throughout the development process, requiring both positive and negative verification. Positive ver... » read more

Predicting The Future For Semiconductors


Is it possible to predict the future? Of course not. We all make projections of what happened in the past, where they are now, and the implications for the future. We bias that in various ways and think we are making some astounding revelation, which is highly unlikely to become true. Of course, by luck, some people get it right and they are bestowed with grand accolades and awards. The likelih... » read more

Optimizing IC Designs For Real-World Use Cases


Semiconductor systems are becoming more focused on power, performance, and area for the primary scenarios they are likely to see in real-world applications, but increasingly at the expense of secondary tasks. This is happening at all levels of abstraction and all stages of the design flow. At the highest level, processors are being optimized to run a given set of software. RISC-V is one of t... » read more

Why It’s So Difficult To Ensure System Safety Over Time


Safety is emerging as a concern across an increasing number of industries, but standards and methodologies are not in place to ensure electronic systems attain a defined level of safety over time. Much of this falls on the shoulders of the chip industry, which provides the underlying technology, and it raises questions about what more can be done to improve safety. A crude taxonomy recently ... » read more

Specialization Vs. Generalization In Processors


Academia has been looking at specialization for many years, but solutions were rejected because general-purpose solutions were advancing fast enough to keep up with most application requirements. That is no longer the case. The introduction and support of the RISC-V processor architecture has attracted a lot of attention, but whether that is the right direction for the majority of modern comput... » read more

Are In-Person Conferences Sustainable?


DAC/Semicon are now over, and while I missed a large part of it due to a stomach bug, I increasingly have a stale taste in my mouth about in-person conferences in general. Let's split things up – an event such as DAC is both an academic conference and a trade show. It has been that way almost since its inception 60 years ago. There are many other conferences that are pure conferences, and the... » read more

Shift Left, Extend Right, Stretch Sideways


The EDA industry has been talking about shift left for a few years, but development flows are now being stretched in two additional ways, extending right to include silicon lifecycle management, and sideways to include safety and security. In addition, safety and security join verification and power as being vertical concerns, and we are increasingly seeing interlinking within those concerns. ... » read more

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