category: Power Architect

category: IoT, Security & Automotive

Power Markets
By Barry Pangrle - 09 May, 2013 - Comments: 0

There has been an ongoing discussion in the industry about the importance of power and performance and which is more important. I submit that the real question is: How much performance can be squeezed out of the power budget for any given market segment? Figure 1. Processor Market Segment Power Budgets Figure 1 shows a rough breakdown of the different market segments for processors, alo... » read more

The Power Of Logic
By Barry Pangrle - 11 Apr, 2013 - Comments: 1

By Barry Pangrle CMOS logic has been dominant since nMOS gave way back in the 1980s. Dynamic logic, like domino, has seen its application in high-speed and often hand-crafted datapath circuits. The potential energy efficiency of operating at near-threshold voltage is very enticing but having to deal with variability issues has made engineers reluctant to try to do more at lower voltages. The q... » read more

EDA Power Moves
By Barry Pangrle - 14 Mar, 2013 - Comments: 0

By Barry Pangrle There have been some recent moves at the top of a couple of smaller but notable EDA companies. At Calypto, Doug Aitelli, who was named the CEO in January 2011 (he succeeded Tom Sandoval who then joined the Board of Directors) was replaced by industry veteran Sanjiv Kaul, the company announced last month. When Doug took over the reins at Calypto, the company described itself... » read more

28nm Powers TSMC Forward
By Barry Pangrle - 14 Feb, 2013 - Comments: 1

By Barry Pangrle TSMC’s financial results for Q4 of 2012 and for the full year were announced just a few weeks agom with TSMC stating it had achieved record sales and profits. Basically, TSMC currently owns the 28nm foundry market. Chairman Morris Chang was clear to distinguish 28nm from 32nm. TSMC substantially moved to the 40nm “half-node” from 45nm, and then skipped 32nm and went to 2... » read more

Shaking Up The Green500
By Barry Pangrle - 17 Jan, 2013 - Comments: 0

Barry Pangrle Last September, I wrote about the efficiency of IBM’s Power7+ architecture in my blog. IBM’s Sequoia supercomputer (a BlueGene/Q system) this past June had just shot to the top of the Supercomputing Top500 chart, clocking in at 16.32 petaflop/s on the Linpack benchmark. Other systems built around the IBM BlueGene/Q, Power BQC 16C 1.60GHz, Custom were also dominating the top o... » read more

Thinking Small
By Barry Pangrle - 06 Dec, 2012 - Comments: 0

By Barry Pangrle “But I am not afraid to consider the final question as to whether, ultimately—in the great future—we can arrange the atoms the way we want; the very atoms, all the way down! What would happen if we could arrange the atoms one by one the way we want them (within reason, of course; you can't put them so that they are chemically unstable, for example). — Richard Feynman, ... » read more

ARM’s big.LITTLE Concept
By Barry Pangrle - 08 Nov, 2012 - Comments: 0

By Barry Pangrle ARM EVP Simon Segars gave the opening keynote address at last week’s ARM TechCon in Santa Clara, California. The big announcement was the new ARM Cortex-A53 and Cortex-A57 processors that will operate in ARM’s “big.LITTLE” configuration. I wrote a bit about big.LITTLE in my blog last year on Innovation at the Core. ARM’s big.LITTLE concept is based on using a smal... » read more

Return To Claremont
By Barry Pangrle - 11 Oct, 2012 - Comments: 0

By Barry Pangrle Intel’s Gregory Ruhl gave an update presentation on Intel’s Claremont IA-32 near-threshold voltage (NTV) and wide dynamic range processor at Hot Chips 24. (I’ve also written an earlier article about Claremont here.) There are many challenges in building a part that operates across a broad range of voltages and Intel listed reduced ratios of on-current vs. off-current, re... » read more

IBM’s Power7+ Processor
By Barry Pangrle - 12 Sep, 2012 - Comments: 0

By Barry Pangrle Hot Chips 24 was held Aug. 27-29 with tutorials on the first day and 30-minute technical presentations plus keynote addresses on the second and third days. There were a lot of great presentations and Hot Chips is definitely one of my favorite conferences. So out of all of the presentations, why did I choose IBM’s Scott Taylor’s on Power7+? Well, it’s likely that I’l... » read more

AMD’s Bobcat Processor
By Barry Pangrle - 09 Aug, 2012 - Comments: 0

Barry Pangrle The International Symposium on Low Power Electronics and Design (ISLPED) was held last week in Redondo Beach, California. There were many good presentations and keynote addresses and a topic that’s near to my heart, near-threshold voltage computing, was often discussed along with how best to (or not) handle variability. One paper out of many that caught my attention was The ... » read more

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