Chip analysts question worth of pending CPU.

Chip analysts question worth of pending CPU. (Intel's Merced next-generation CPU) (Product Development) (Computing Canada)

Intel's next generation processor, Merced, is a commercially unviable initiative that will add more complexity than the market really needs, industry watchers say.

In the midst of a media campaign that has teased the market with hints of breakthrough performance and expanded parallelism, several insiders are now referring to the forthcoming architecture as Intel Corp.'s "trial balloon." Scott Emmo, Hewlett-Packard technology manager for the Advanced Technology Marketing Group in Palo Alto, Calif., concedes that Intel (with whom HP developed Merced's EPIC architecture), has cloaked the project in a veil of secrecy that may have backfired by generating more speculation than either company anticipated.

"I think the reason why there's been so many rumors about Merced and the architecture is that it was filling a void of information, because Intel and HP really haven't said a whole lot about it in the past, " he says. "People are guessing. Understand that Merced is a couple of years off -- in general, that kind of information isn't usually brought out anyway."

Key to the hype surrounding Merced is EPIC (Explicitly Parallel Instruction Computing). While most of today's 32-bit chips allow processors to execute four tasks at once -- or in parallel -- EPIC would expand parallelism without taking up more room on the microprocessor. That' s because EPIC takes the complexity of parallelism out of the processor and allows the compiler to perform those tasks outside of the hardware.

Apart from pumping up clock speeds, Emmo says EPIC is the only other way the industry will see more performance out of a chip.

"The analogy would be, if I've got a one-lane highway, cranking up the clock speed would be like raising the speed limit," he says. " I could get a lot more cars down the highway, but I'd have to go from 60 miles an hour to 80 miles an hour. In parallel, it's widening the lanes. Today they only have four lanes, so I can get quite a few cars down there, but by combining the two of them, I can get super performance and I'm able to increase my lanes much easier."

The question is, who needs it? Bruce Lightner, vice-president of development at Metaflow Technologies in La Jolla, Calif., says the whole idea may be premature, as much of the market has yet to make the transition from 16- to 32-bit architecture. He also doubts any of the new chip series will be seen before 1999.

"This is going to take a lot longer than any of us can imagine," he says. "Intel has been trying to defocus on x86 performance. They really made a big blunder with the Pentium Pro when they ignored 16-bit performance, and part of this may be that Microsoft told them all that stuff is going to be gone by (the year 2000). That idea has persisted, and certainly if you've ever taken a 16-bit application and run it on a Pentium Pro, it's horrible. I think Intel is seeing that x86 performance is still very important, which has been another reason for putting this off."

Schick, Shane, Chip analysts question worth of pending CPU. (Intel's Merced next-generation CPU) (Product Development)., Vol. 24, Computing Canada, 01-26-1998, pp 15(2).