Barry Pangrle

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Barry Pangrle is a power architect. He is based in Silicon Valley.

Author's Latest Posts

Performance & Efficiency Cores For Servers
By Barry Pangrle - 31 Aug, 2023 - Comments: 0

HotChips 2023 was held August 27-29, 2023 at Stanford University in California and was the first in-person version of the conference in 4 years. The conference was held in a hybrid format that had over 500 participants in-person and over 1,000 attending virtually online. Topics covered a broad range of advancements in computing, connectivity, and computer architecture. Both AMD and Intel gav... » read more

Managing Voltage Variation
By Barry Pangrle - 07 Aug, 2023 - Comments: 0

Engineers make many tradeoffs when designing SoC’s to better meet design specifications. Power, Performance and Area (PPA) are the primary goals and all three impact the cost of the implementation. For example, higher power and performance can both require more expensive packaging for power and signal integrity as well as cooling. The larger the die area the fewer die per wafer which drives u... » read more

Supercomputing Efficiency Lags Performance Gains
By Barry Pangrle - 30 Jun, 2023 - Comments: 0

In last month’s article, Top 500: Frontier is Still on Top, I wrote about the latest versions of the Top500 and Green500 lists. Power is an incredibly important aspect of designing a world performance leading supercomputer. (Why, I can remember back to when you could run the world’s fastest machine on only a couple MW of power.) The first Green500 list was published back in 2013. Happy 1... » read more

Top500: Frontier Is Still On Top
By Barry Pangrle - 25 May, 2023 - Comments: 0

The latest versions of the Top500 and Green500 lists were just released on May 22, 2023. The last time that I wrote about the Green500, a Chinese machine, NRCPC’s Sunway TaihuLight, was sitting at the top of the Top500 list. It’s been a while since I last wrote about these lists and it’s interesting to look back at the leap in performance and energy efficiency over the past 7 years. ... » read more

TSMC Targets N2 Production For 2025
By Barry Pangrle - 02 May, 2023 - Comments: 0

April ended with TSMC’s financial results for the 1st Quarter of 2023 reported on April 20, 2023, and their North American Technology Symposium was held on April 27 at the Santa Clara Convention Center. TSMC’s N3 entered volume production in 4Q 2022 and TSMC’s N2 “nanosheet” technology is on schedule for production in 2025. TSMC’s CEO, C.C. Wei, said during the 1Q conference cal... » read more

Squeezing The Margins
By Barry Pangrle - 29 Mar, 2023 - Comments: 0

Back in 2016, we looked at the MediaTek Helio X20, the first Tri-Gear mobile SoC. Tri-Gear is a step beyond ARM’s big.LITTLE concept of using two different cores that have unique power and performance characteristics, by adding a third core. The main advantage to this approach is having more core choices to best run workloads at better energy efficiency and performance operating points. At... » read more

TSMC: 10nm To Be Greater Than 10% Of 2017 Wafer Revenue
By Barry Pangrle - 18 Jan, 2017 - Comments: 2

TSMC’s financial results for the 4th Quarter of 2016 were released on January 11, 2017 (PST) and showed that year-over-year fourth quarter revenue increased 28.8% and simultaneously net income and diluted EPS both increased 37.6%.  In U.S. dollars, TSMC’s fourth quarter revenue was $8.25 billion. TSMC's CFO, Ms. Lora Ho, reported that 2016 was a good year for TSMC and that the company set ... » read more

Green Computing: GPUs Strike Back
By Barry Pangrle - 19 Dec, 2016 - Comments: 1

After the last Platform for Advanced Scientific Computing Conference in June, I wrote an article here about how the custom designed chips from NRCPC (used in the Sunway TaihuLight) and PEZY Computing (used in the PEZY Shoubu) had jumped to the top of the Green500 list with the Sunway TaihuLight also remarkably topping the Top500 list. Well, six months after the report from the IEEE/ACM SC16 Con... » read more

Making Waves In Deep Learning
By Barry Pangrle - 12 Oct, 2016 - Comments: 0

A little more than two and a half years ago I wrote Making Waves in Low-Power Design, an article about a company (at the time) called Wave Semiconductor. Fast forward the the recent Linley Processor Conference, Wave Computing’s CTO Chris Nicol gave the audience an update on the company’s eagerly awaited and soon (planned for October) to be taped-out 16K-core dataflow processor for deep lea... » read more

MediaTek Grabs Another Gear
By Barry Pangrle - 26 Aug, 2016 - Comments: 1

Today, it seems to be all the rage for automotive manufacturers to try to continuously one up the competition by announcing a new transmission that has more gears or “speeds." (Popular Mechanics did a nice article about why you would want more gears.) Basically, transmission designers want to keep the engine operating at or near its peak operating efficiency point and extend the operating ran... » read more

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