category: Power Architect

category: IoT, Security & Automotive

Material Impact
By Barry Pangrle - 08 Aug, 2013 - Comments: 0

Ed Sperling’s June article New Approaches to Better Performance and Lower Power took a look at the new materials that researchers are examining for future technology nodes. Figure 1. Basic Planar CMOS FET Figure 1 shows a basic diagram of a planar CMOS FET (diagrams for other FETs can be found here). The drive strength of a FET is proportional to , where μ is the surface mobility for... » read more

The Green500 And The Charge Towards Exascale Computing
By Barry Pangrle - 11 Jul, 2013 - Comments: 0

The latest Green500 list (Excel spreadsheet here) was just released at the end of June, and heterogeneous systems continue to dominate the top of the list with the new leader besting the old by nearly 30%. Two systems using Intel Xeon E5-2687W 8-Core 3.1 GHz processors coupled with NVIDIA K20’s topped the list. Eurotech’s Eurora and Aurora Tigon both broke the 3,000 MFLOPS/W barrier, record... » read more

New Standard!
By Barry Pangrle - 13 Jun, 2013 - Comments: 0

It’s been a little over four years since the first IEEE 1801 standard was officially published in March 2009, but the standard can trace its roots back to years before that date. On May 30th, the IEEE released a press announcement for the newest version of the standard, IEEE 1801-2013 (a.k.a. UPF 2.1). It takes a considerable amount of effort and attention to detail to produce a solid standar... » read more

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

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