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Brian Bailey

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Brian Bailey is Technology Editor/EDA for Semiconductor Engineering.

Author's Latest Posts

Inevitable Bugs
By Brian Bailey - 29 Apr, 2020 - Comments: 3

Are bug escapes inevitable? That was the fundamental question that Oski Technology recently put to a group of industry experts. The participants are primarily simulation experts who, in many cases, help direct the verification directions for some of the largest systems companies. In order to promote free discussion, all comments have been anonymized, distilling the primary thoughts of the parti... » read more

The Meaning Of Verification
By Brian Bailey - 27 Apr, 2020 - Comments: 1

When I ask the question "Why do we do verification?" there are generally two types of responses. One of them sees the glass as half empty and the other as half full. It depends upon how you look at the problem and if you see verification as being a positive or negative operation. The negative answer is that we do verification to find bugs. This relies on the mechanical function of creating v... » read more

Practical Processor Verification
By Brian Bailey - 23 Apr, 2020 - Comments: 0

Custom processors are making a resurgence, spurred on by the early success of the RISC-V ISA and the ecosystem that is rapidly building around it. But this shift is amid questions about whether processor verification has become a lost art. Years ago custom processors were common. But as the market consolidated around a handful of companies, so did the tools and expertise needed to develop th... » read more

Power-Hungry Safety And Security
By Brian Bailey - 09 Apr, 2020 - Comments: 0

There is a price to pay for everything. When it comes to adding safety and security into a device, the costs in terms of power and area can be significant, but if the task is taken seriously, those costs can be managed and minimized. New analysis and implementation tools are coming to market that can also help to keep the costs contained. But it also requires the right mindset. As more indus... » read more

Standard Evolution
By Brian Bailey - 26 Mar, 2020 - Comments: 0

I recently had the opportunity to sit down with Lu Dai, chairman of Accellera Systems Initiative and senior director of engineering for Qualcomm. SE: I have noticed a change in the way that Accellera operates these days. In the past, standards were driven by the EDA companies, but recently we have seen a lot more end-user company involvement and they are the companies driving new standards. ... » read more

Why It’s So Hard To Create New Processors
By Brian Bailey - 26 Mar, 2020 - Comments: 1

The introduction, and initial success, of the RISC-V processor ISA has reignited interest in the design of custom processors, but the industry is now grappling with how to verify them. The expertise and tools that were once in the market have been consolidated into the hands of the few companies that have been shipping processor chips or IP cores over the past 20 years. Verification of a pro... » read more

Do You Trust Your IP Supplier?
By Brian Bailey - 26 Mar, 2020 - Comments: 0

How much do you trust your IP supplier, regardless of whether IP was developed in-house or by a third-party provider? And what implications does it have a system integrator? These are important questions that many companies are beginning to ask. Today, there are few methods, other than documentation, that provide the necessary information. The software industry may be ahead of the hardware i... » read more

HBM Issues In AI Systems
By Brian Bailey - 16 Mar, 2020 - Comments: 0

All systems face limitations, and as one limitation is removed, another is revealed that had remained hidden. It is highly likely that this game of Whac-A-Mole will play out in AI systems that employ high-bandwidth memory (HBM). Most systems are limited by memory bandwidth. Compute systems in general have maintained an increase in memory interface performance that barely matches the gains in... » read more

Power Challenges In ML Processors
By Brian Bailey - 12 Mar, 2020 - Comments: 0

The design of artificial intelligence (AI) chips or machine learning (ML) systems requires that designers and architects use every trick in the book and then learn some new ones if they are to be successful. Call it style, call it architecture, there are some designs that are just better than others. When it comes to power, there are plenty of ways that small changes can make large differences.... » read more

A New Breed Of Engineer
By Brian Bailey - 27 Feb, 2020 - Comments: 6

The industry loves to move in straight lines. Each generation of silicon is more-or-less a linear extrapolation of what came before. There are many reasons for this – products continue to evolve within the industry, adding new or higher performance interfaces, risk levels are lower when the minimum amount is changed for any chip spin, existing software is more likely to run with only minor mo... » read more

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