HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Comments
View Comments: Newest First|Oldest First|Threaded View
Loring Wirbel
User Rank
Blogger
Re: Cost vs. Performance
Loring Wirbel   7/26/2011 11:38:41 AM
NO RATINGS
There's a simple rule of thumb that can be used.  SMP is great for brute force computation, though it more or less runs out of steam at eight-way unless multithreading and task parallelism gets better.  Not many embedded tasks are brute-force symmetric.  But some MPU vendors will sell symmetric multicore the same way they'll sell Ferraris - if someone is silly enough to buy a 16-way i7 because it seems to be macho, well, that's their error.  Better to look for a Freescale, Cavium, etc.

Beth Stackpole
User Rank
Blogger
A case for interdisciplinary skills
Beth Stackpole   7/26/2011 9:21:23 AM
NO RATINGS
Seems like this is just one more example pointing up the growing requirement for engineers to shore up their interdisciplnary skills. As Loring well points out, designers evaluating multicore processors for embedded applications are going to need to understand a whole lot more about software.

 

 

Alexander Wolfe
User Rank
Blogger
Cost vs. Performance
Alexander Wolfe   7/26/2011 8:44:22 AM
NO RATINGS
To me, the line is getting very blurred between so-called "embedded" devices and microprocessors. At the end of the day, I guess it's the application which defines whether the part supplying the computing cycles is embedded or not, but it sure seems to be that vendors are very happy to upsell (maybe that should be upCELL, or upcycle) engineers, when lower cost, lower power consuming processors would work just as well. The apps you cite, such as routers, clearly benefit from these beefier embedded multicore parts. And robotics apps do too. But somewhere along the apps continuum, the needs of the vendors (to sell higher ASP processors) and those of engineers (staying within cost and power budgets) start to diverge.

Douglas Smock
User Rank
Platinum
Impressive
Douglas Smock   7/26/2011 8:43:50 AM
NO RATINGS
Thanks you Loring. This is an interesting development.



Partner Zone
Latest Analysis
For decades there have been rumors that Microsoft essentially copied DRI's CP/M operating system and sold it to IBM as MS-DOS. In just a few days, all will be revealed.
A San Francisco startup called Otto came out of stealth mode recently and released a dramatic video demonstrating its successful test of a technology for self-driving trucks.
Researchers have found a way to use graphene to cheaply and easily turn dirty water into drinking water.
A new 1-GHz vector signal transceiver promises to offer expanded test capabilities for engineers involved in applications ranging from automotive and aerospace to semiconductors and defense.
Researchers at the Masdar Institute of Science and Technology have devised a new method for designing strong, light cellular structures of re-architected metals and plastics with optimized properties.
More:Blogs|News
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7 | 8 | 9 | 10


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Technology Marketplace

Copyright © 2016 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service