REGISTER | LOGIN
Breaking News
Comments
Newest First | Oldest First | Threaded View
pica0
User Rank
Author
re: Will Moore's Law doom multicore?
pica0   3/12/2013 2:11:25 PM
NO RATINGS
Many application used all day contain a damn lot of tasks that can be performed in parallel. Just take an editor frame as example: rendering, spell check and syntax or grammar check can be performed in seperate threads. The fact most application are designed with a single core in mind does not imply, the application does nit contain paralellism.

Bert22306
User Rank
Author
re: Will Moore's Law doom multicore?
Bert22306   3/11/2013 8:19:47 PM
NO RATINGS
"Amdahl's Law tells us that even with an infinite number of cores, an application that is 50% parallelizable will get only a 2x speedup over a single-core design." The key words are "an application." There are often multiple applications vying for CPU cycles, all running at the same time. So in fact, I can show how a quad-core processor shows up as only 25 percent busy, or slightly more than that, when the same app running on a single core eats up 100 percent of CPU cycles. I've read, though, that memory buses of today show no improvement beyond what you can eek out of an 8-core processor. The problem being choreography, in essence.



Like Us on Facebook
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Martin Rowe

Test Tool Finds Ethernet Wiring Errors
Martin Rowe
Post a comment
When my house was renovated several years ago, I had the electrician install network outlets in numerous places, then run the LAN cables to a wiring closet. But he didn't document the ends ...

Martin Rowe

Local Electronics Store Supplies Engineers and Hobbyists
Martin Rowe
5 comments
Rochester, N.Y. — Tucked away in this western New York city known for its optics is Goldcrest Electronics, a local store that's supplied businesses and individuals with electronic ...

Martin Rowe

How to Transform a Technology University (Book Review)
Martin Rowe
1 Comment
The Presiding Genius of the Place by Alison Chisolm. WPI, Worcester, Mass., 234 pp., 2016. Engineers love to discuss, and often criticize, engineering education. They often claim ...

Max Maxfield

Aloha from EEWeb
Max Maxfield
Post a comment
Just a few minutes ago as I pen these words, I posted this blog about this month's Cartoon Punchline Competition over on EEWeb.com.