Wednesday, January 17, 2007

Hewlett-Packard's FPGA research, and replacing transistors

You may have seen the story earlier this week about a "breakthrough" announced by HP researchers, which involved applying nano technology to semiconductors.

I was intrigued, and Googled around to find this analysis at the "ars technica" web site: Hewlett-Packard's FPGA research, and replacing transistors. This excellent article explains that the HP announcement is for a very specific (and limited) application: FPGA interconnect. And it points out that the more promising HP announcement actually came out in 2005, which pointed to use of nanotechnology for circuit switching, not just interconnection.

Gotta love this web site's tag line: Serving the PC enthusiast for over 6x10-2 centuries!

Tuesday, January 09, 2007

Best Companies to Work For ASIC & EDA?

In the news today is the much-talked-about list of 100 Best Companies to Work For 2007 in Fortune magazine.

Hmmm, the companies that we typically work at didn't fare too well. I only see a couple that would typically have ASIC or EDA engineers:

11
Cisco Systems
14
Qualcomm
87
Texas Instruments

As far as high-tech, there are a lot more software companies listed, and many related to health care.

It would great if EE Times did an industry-specific version -- Best Places for an EE to Work For!

Thursday, January 04, 2007

DAAMIT vs. ChipZilla, Past, Present and Future

I've mentioned this tech enthusiast web site before. Geek.com Geek News - Is AMD's vision enough? is a great summary of the multi-core strategies being pursued by AMD and Intel. Be sure to check out the User Comments, which are one of the best resources of this site. "GoatGuy" is the real deal, always good for expert commentary. And this lexington_steele guy is pretty provocative, too. I wonder where he got that name?

Wednesday, January 03, 2007

R.I.P. Dean Newton

The EDA industry and the University of California lost an influential leader with the passing of the College of Engineering Dean, Richard Newton: EDA icon Richard Newton dies.

I was fortunate to hear Dean Newton speak at a "Berkeley in Silicon Valley" lecture last April. My notes from that lecture note that "synthetic biology", the application of engineering to living organisms (on a nano scale), was one of Dr. Newton's current passions, and his family requested donations in his name to the Berkeley Center for Synthetic Biology.

Update: John Cooley's Memories of Professor Richard Newton.

Tuesday, January 02, 2007

Happy New Year in ASIC & EDA

I thought about writing a forward-looking article, making some predictions about our industry. But, so far, I am too lazy. ;-) Besides, that's what Gabe & Gary get paid the big bucks to do. So, here are links to their New Year columns with a bit of color from me.
  • Gabe's column, Last minute deals open opportunities for 2007 and beyond, is focused and sounds plausible. His DFM story sounds good -- it needs to get more into the design phase, as a proactive guide to help people laying out the circuits. And I like his call for "Locality Sensitive Cells" that would be DFM-correct by construction. His other point, about Mentor's moves in the ESL and C-synthesis space, discusses alternatives to SystemC, and where C may be lacking as the perfect system-level language.
  • Gary's "column" isn't really written by Gary. He has Richard Goering as his ghost writer! I have more problems with Gary's predictions that Gabe's. Gary is still predicting the ascendancy of ESL, FPGA, and embedded software. I still see plenty of challenge and opportunity in plain old RTL-based standard cell design! Gary does have 10 predictions, and it's worth looking over the rest of them for thought-provoking variety.

Tuesday, December 19, 2006

Get a (better) job

I've been reading Ask The Headhunter for years, since Nick Corcodilos wrote a column in EE Times. It's always provocative, and worth a read if you may be looking to get hired or do some hiring in the future. (And who isn't?)

Poke around his web site to get a feel for what he writes about. It's a good reference. And, sign up for his newsletter to get his periodic thought-provoking missives. Happy Holidays!

Friday, December 01, 2006

EDA is Child's Play

One of the more common parts of my job is to figure out why something stopped working, or why it is suddenly producing different (namely worse) results than before, when "nothing's changed". Things like

  • Why is the synthesis tool crashing now when it ran fine before?
  • What changed so that I'm not making area/timing any more?
  • Why is equivalence checking failing now?

For all of these sorts of things, I end up comparing logs, netlists, scripts, etc. I am the tkdiff master! With my eagle eye and understanding of the personalities of EDA tools and companies, it's a sleuthing challenge to find the culprit.

If I tried to explain this to a layman, I'd have to say that part of my job is playing the grown-up version of one of my daughter's favorite games, Spot the Difference. Yes, that's what I went to all those years of college for. :-)

Friday, November 10, 2006

The New Way of Graphics, and More

NVIDIA launched their new graphics chip architecture, the chip code-named G80. Check out these reviews of how the performance blows away yesterday's best graphics.

This page has the G80 Hardware Specs. How about 681 million transistors?

The architecture is very interesting and different from past GPUs designed by NVIDIA or ATI (AMD). Rather than dedicated compute engines for different stages of the "graphics pipeline", this new architecture has scores of 1.35 GHz streaming processors that can be assigned to the most demanding graphics tasks for a particular game or scene. Because of this generality, it can be applied to completely new problems, as described in ExtremeTech's article:

As you might imagine, this will be aimed at highly parallelizable compute tasks, such as scientific computing, financial analysis and oil exploration. Nvidia will actually be offering a C compiler to facilitate thread computing, so programmers interested in general-purpose programming with the GPU don't have to be locked into Direct3D semantics. -- GeForce 8800 GTX: 3D Architecture Overview

Thursday, October 26, 2006

The Longest Quick Reference Ever

This week I wanted to run an EDA tool that I don't run every day. I needed to look up a command line option, and found that, inexplicably, the option wasn't listed by the program's help option.

So, I trudged over to the online documentation and was happy to find the Tool X Quick Reference manual. I figured it'd be a couple of pages long and I'd print it out and keep it next to my computer.

Well I was shocked (shocked, I tell you!) to find that the "Quick" Reference manual is 86 pages long. Something is seriously wrong with your product or your tech pubs when this happens.

What do you think? Are you surprised that a tool could be so inscrutable? Is it just that the writers don't understand what Quick Reference means? And, can you guess which tool I'm referring to? (I'll post the answer later.)

Tuesday, October 24, 2006

Just how unsexy is EDA?

April Fools in October? I thought I must be reading a joke: in Life without Dataquest, Gabe Moretti reports that research firm Gartner Dataquest has dropped coverage of the EDA industry, and laid off reknowned analyst Gary Smith and his colleagues.

This is disturbing. I don't like changes like this! Dataquest (and Gary) have been covering the EDA industry for many years, providing analysis and prognostications, that, agree with them or not, were a starting point for debating the direction of EDA technology.

Let's hope that Gary and crew resurface to share their wisdom and opinions again. Best wishes to them.

10/25 Update: see the "backstory" and lots of comments from EDA industry personnel in John Cooley's article on Gary Smith's departure.

Over 500 Million Served

The production volumes described in NVIDIA AND TSMC CELEBRATE NEW MILESTONE:500 MILLION PROCESSORS are mind-boggling! What a profitable business model for both TSMC and NVIDIA, and what a contrast to the "old" ASIC model.

At my previous company, the lifetime projected volume of the ASIC we were designing was around 50,000 units. Yet, the ASIC vendor had to provide significant complex IP and especially engineering headcount to shepherd the chip to the prototype stage. Unfortunately, the market changed and that chip never made it to production. Sorry, ASIC vendor!

No wonder that most ASIC vendors are having a very tough life, with rising costs and declining design starts (and especially, fewer designs going to mass production). Contrast this with foundries such as TSMC, which get the customer to do all the IP integration, implementation, and verification, and the foundry can just focus on selling wafers. No wonder this model is eclipsing the ASIC model.

Wednesday, October 18, 2006

ICCAD Early Reg. Deadline Today

ICCAD-2006 is coming to San Jose this November 5-9 and the early registration deadline is TODAY, October 18.

Registration reveals a major benefit of IEEE or ACM membership: you get a discount of over $100 registering for the full conference!

Tuesday, October 03, 2006

Wondering about the IEEE

I feel like I should be a member of the IEEE. I am, this year. Throughout my career, it's been an on-again, off-again relationship. Even when my company reimburses me, sometimes I feel that it's not worth it.

What I want it to be

  • Teach me about new developments in my specialty. There are some gems, but it's harder to find from IEEE publications vs. trade publications like EE Times or EDN. Part of it is because I can't find a Society/Publication that aligns well with my specialty (see Gripes, below).
  • Teach me about interesting developments in other specialties. The articles need to start from a basic level, not trying to prove how sophisticated and complex the author can be. I am not finding this from the IEEE. Something like Scientific American or Discovery magazines might be a more accessible resource.
  • Represent my professional interests. The IEEE-USA tries to do this, and I'm a member. But membership is optional, and I wonder how many USA EEs belong or are even familiar with it?

What IEEE should do

  • Give a primer to members on how the IEEE works. I have sort of figured these things, but why doesn't the IEEE come with a "user's manual" to address these dead-on?
    • What is a Region and what's a Chapter?
    • What is the difference between their publications Spectrum, Proceedings, and Transactions?

Other gripes

  • There's no Society for Digital IC (RTL & Gates) engineers! I just can't figure this one out. There are certainly Societies for semiconductor process, circuit design, and packaging. But what Society should a plain-ol' ASIC engineer belong to? Why isn't there a perfect fit for such a common EE discipline?
  • The price/performance of an IEEE membership really seems out of whack. Why does it cost me (or my company) over $140/year, when the main benefit is a magazine subscription or two? Why, I can subscribe to EE Times for free and get far more practical news and technical information! Where is all the IEEE money going? To some huge bureaucracy in New Jersey?

What do you think about the IEEE? Do you belong? Why or why not?

Tuesday, September 12, 2006

EDA standards development within the IEEE is mismanaged

Come on, Gabe, tell us what you really think about the IEEE DASC: EDA DesignLine | EDA standards development within the IEEE is mismanaged

It's quite an indictment about what ought to be one of the most prestigious standards bodies related to EDA.

I know that most EDA vendors have groups whose full-time responsibility is the care and feeding of standards groups. In an ideal world, they'd be ensuring the most elegant and implementable open standards. The Internet standards bodies seem to be a fine example of this, and have delivered interoperable standards that spurred an incredible information revolution over the past decade. Why can't the EDA industry have that, too?

In reality, the EDA vendors do quite a bit of political maneuvering and intrigue. For example, we might only have to deal with one HDL if Cadence had opened up Verilog before VHDL emerged. Imagine the tremendous resources spent on VHDL that could have been saved. We almost had two library standards because Synopsys wouldn't open up the "Liberty" format until there was a revolution brewing to move the industry to DCL/ALF formats. You've never heard of DCL and ALF? Well, Synopsys finally opened up .lib and no one needed those alternate formats.

Anyways, getting back to Gabe's post, it's sad how quickly the proposed low-power standards are degenerating into political battles between EDA companies, much like the CCS vs. ECSM library standoff. Cadence's initial proposal sounded pretty reasonable, though perhaps I'm naive to think that they and Synopsys could have agreed on a common standard.

Friday, September 08, 2006

A Good Chip News Site

Geek.com's ChipGeek page is a good source of semiconductor news items. The analysis and commentary by the editor adds helpful "color" to the pure news. If you dive down into the readers' comments, they range from wonderfully instructive to embarassingly sophomoric.

By the way, the EDA blogs I follow seem awful quiet! Are people burned out after DAC? Or is summer over and it's time to get back to work?

But, on the professional blogging front, a shout out to Gabe Moretti, who is editor at EDA DesignLine, a new web site of the CMP tech publishing empire.

Tuesday, August 29, 2006

YAST - Yet Another STA Tool

I'm initially puzzled when an EDA vendor fields a new tool to take on Synopsys PrimeTime, e.g., Incentia Timing Analysis and Constraint Management Software Adopted by Ambarella.

PrimeTime is one of Synopsys highest-quality, most trouble-free tools. The main gripe I have with PT is that it can only tell you about timing problems -- it doesn't fix them! Hence, a cottage industry of home-grown scripts and supplementary tools exists to take PT reports and generate ECOs to fix the violations.

However, some of the features in this TimeCraft tool sound pretty attractive, and give me second thoughts about assuming nothing can beat PrimeTime. Attractive features include

  • MSV support
  • "multi-task capability for multi-corner and multi-mode analysis"
  • Advanced OCV features
  • Constraint Manager

Friday, August 18, 2006

Charter for a Corporate CAD Group

I discovered another EDA-related blog, Cool Verification. Cool Verification: Creating Corporate Standards? Beware... is an excellent post outlining the considerations in creating and managing a "Corporate CAD" department.

I've taken this group's mission for granted, but my company didn't even have such a department four years ago, even as it was cranking out huge industry-leading chips. What finally pushed us to create a central group was the proliferation of derivative chips and especially the diverse chips being designed by new business units. It no longer made sense to have a few "designers with a tool fetish" responsible for creating and maintaining all the flows. Hence, a CAD department was born. The referenced post touches upon the dynamics of trying to please all groups in the face of different requirements and priorities.

Monday, August 14, 2006

EDA Confessions, Part I

After my prescient DAC trip report, I've been thinking of a couple of times in my career when I've really missed the boat on EDA companies. I have a couple of examples that I can't forget. I'll write about them one at a time. Confession is good for the soul. ;-) The first is a company that I ignored, yet in retrospect could have done a great jobs for us.
The Time
Late 1990s
Product Type
Floorplanner
The Company
Silicon Perspective (SPC)
The Problem
My company was working with Synopsys on "Chip Architect" and "Floorplan Manager" to close timing on "deep submicron" designs. These were around 0.35 micron, IIRC. I never used Chip Architect, but my colleagues were beta testing and helping to debug it. I spent a lot of time with Floorplan Manager; it was pretty inefficient to back-annotate tons of layout data onto Design Compiler, and for DC to optimize designs in a way both effective and feasible for physical design. We were struggling to close timing on the design.
The pitch
An SPC Sales guy kept calling me, asking us to evaluate FE. He made extraordinary claims about its performance, capacity, and quality of results. He wanted us to try it on a multimedia design one of our groups was working on.
What I did
I couldn't believe that this little startup could deliver such amazing results that Synopsys and Cadence couldn't! Clearly, he was just making wild claims to get our attention. So, I never did bring him in for an evaluation.
What happened
Our design project took so long and it was eventually cancelled. And I ended up leaving the company around the same time. Later, SPC was acquired by Cadence for a large sum and today is the foundation and namesake of "Encounter", their whole family of Digital IC implementation products!
Lesson learned
Don't dismiss startups lightly! Consider them skeptically, but give them a chance if their story seems plausible.

Thursday, August 10, 2006

Graphics Beginners' Guide | Tom's Hardware

Graphics Beginners' Guide | Tom's Hardware is a great introduction for understanding (and purchasing :-) today's graphics cards.

It's a series of three articles, all of which are accessible from this page.

Thursday, August 03, 2006

After the AMD / ATI merger: Will Nvidia GeForce still compete with ATI Radeon?

After the AMD / ATI merger: Will Nvidia GeForce still compete with ATI Radeon? | TG Daily is the best in-depth analysis I've seen of the implications of the AMD acquiring ATI. It lays out a number of scenarios, but the end game is far from clear.