Barry Pangrle

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

Author's Latest Posts

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

China Tops Top500
By Barry Pangrle - 14 Jul, 2016 - Comments: 0

The last time I wrote about the Green500, the Chinese machine Tianhe-2 was at the top of the Top500 list. At that point, Tianhe-2 had slipped from 49th to 64th on the Green500. Tianhe-2 has now slipped to second place on the Top500, only surpassed by yet another new Chinese machine, NRCPC’s Sunway TaihuLight. There has also been some consolidation between the Top500 and the Green500 lists: it... » read more

TSMC: Onward to 5nm
By Barry Pangrle - 10 Mar, 2016 - Comments: 0

TSMC’s financial results for the Q4 of 2015 were released in January and showed an 8.5% revenue drop compared to the previous year, and a 3.5% decrease compared to Q3 (all in NT$). For the full year though, TSMC said it had again achieved record sales, with revenue for the full year up over last year by 10.6% in NT$ (5.7% in US$). President and co-CEO Mark Liu reported that TSMC sees a red... » read more

Automotive Electronic Power
By Barry Pangrle - 27 Jul, 2015 - Comments: 2

Nick Hendricks: I was drag racing. I'm a drag racer. Detective Samson: You were drag racing. Nick Hendricks: [nods] Detective Samson: In a Prius. Nick Hendricks: I don't win a lot. —Horrible Bosses (2011) Automobiles are now a platform for multiple electronic devices. From controllers for complex hybrid drive systems like those found in the Toyota Prius to all types of entertainment s... » read more

Asynchronous Design: Is It Time Yet?
By Barry Pangrle - 05 Jun, 2015 - Comments: 0

Non-mainstream technologies can offer advantages over more commonly used approaches, but usually at some additional cost (otherwise they’d probably be mainstream). The additional cost could be in design time, area, testability or whatever, and it might even be only a temporary disadvantage. If comparable time and energy were invested in the new technology, perhaps the additional costs would d... » read more

TSMC Tech Tour De Force
By Barry Pangrle - 13 Apr, 2015 - Comments: 0

TSMC held the first of its three North American Tech Symposiums on April 7 in San Jose, with the other two coming up in Boston on April 14 and in Austin on April 16. As was mentioned previously here, the record fast ramp-time of the 20nm node was highlighted among other technological achievements. TSMC also released its March revenue report on April 10, and it shows a dramatic 49.8% increase in... » read more

TSMC: Rise of the “Phantom Node”
By Barry Pangrle - 23 Mar, 2015 - Comments: 0

TSMC’s financial results for Q4 of 2014 and for the full year were announced in January with TSMC stating it again had achieved record sales and profits. The fourth quarter saw TSMC set records for revenue, earnings per share and cash balance. TSMC made bold predictions last year about 20nm revenue by Q4 2014, and it appears it has met them (see 28nm Powers TSMC Forward, Part Deux). TSMC repo... » read more

An Update On The IEEE 1801-2013 Unified Power Format Standard
By Barry Pangrle - 09 Feb, 2015 - Comments: 0

It’s been almost six years since the first IEEE 1801 standard was officially published in March of 2009, but the standard can trace its roots back to years before that date. On May 30, 2013 the IEEE released a press announcement for the most recent version of the standard, IEEE 1801-2013 (a.k.a. UPF 2.1). This brought forward a standard for the industry that is finally backed by all of the ma... » read more

New Machine Tops The Green500 List
By Barry Pangrle - 10 Dec, 2014 - Comments: 0

The Green500 has released its latest list of the top 500 most energy efficient Supercomputers and there is a new machine, L-CSC from the Helmholtz Center that is the first supercomputer to surpass the 5 GigaFLOPS/watt barrier. The machine is yet another heterogeneous system and is based on AMD FirePro S9150 GPU accelerators and Intel Xeon E5-2690v2 10C 3GHz processors. IBM and NVIDIA aren’... » read more

A Decade At The Ceiling
By Barry Pangrle - 05 Nov, 2014 - Comments: 0

This month marks the tenth anniversary of the introduction of the Intel Pentium 4 HT 570J, which had an advertised operating frequency of 3.8 GHz. It was manufactured in a 90nm process, had a VID voltage range of 1.2V-1.425V and was rated at 115W TDP. In a previous article, Power to Fly, we looked at the graph that I’m including again here below for reference. The microprocessor indu... » read more

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