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
As more electric cars and plug-in hybrids hit the highways, the need for battery chargers is growing.
Festo is developing small wind turbines for generating power to buildings. The model for the mini wind devices is the seagull wing.
MIT students modified a 3D printer to enable it to print more than one object and print on top of existing printed objects. All of this was made possible by modifying a Solidoodle with a height measuring laser.
A battery management system to support an electric motorcycle lithium-ion battery pack took first place in Texas Instruments' annual engineering innovation contest.
This Gadget Freak Review looks at a keyless Bluetooth padlock that works with your smartphone, along with a system that tracks your sleep behavior and wakes you at the perfect time in your sleep cycle to avoid morning grogginess.
More:Blogs|News
Design News Webinar Series
7/23/2014 11:00 a.m. California / 2:00 p.m. New York
7/17/2014 11:00 a.m. California / 2:00 p.m. New York
6/25/2014 11:00 a.m. California / 2:00 p.m. New York
5/13/2014 10:00 a.m. California / 1:00 p.m. New York / 6:00 p.m. London
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Sep 8 - 12, Get Ready for the New Internet: IPv6
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6


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.
Next Class: September 30 - October 2
Sponsored by Altera
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service