Overclock.net banner

[PhysOrg] More chip cores can mean slower supercomputing, simulation shows

1684 29
Quote:


The worldwide attempt to increase the speed of supercomputers merely by increasing the number of processor cores on individual chips unexpectedly worsens performance for many complex applications, Sandia simulations have found.


Read the rest here.


From the article it looks like anything over 8 cores on a single chip hurts performance.
1 - 20 of 30 Posts

·
QA Engineer
Joined
·
3,789 Posts
Irony?
 

·
Registered
Joined
·
3,962 Posts
Good thing I stopped at 4.
 

·
Tator Tot Enthusiast
Joined
·
3,330 Posts
Quote:


The problem is the lack of memory bandwidth as well as contention between processors over the memory bus available to each processor. (The memory bus is the set of wires used to carry memory addresses and data to and from the system RAM.)

Simple problem to fix IMO.
 

·
Premium Member
Joined
·
7,407 Posts
Quote:


Originally Posted by Drizzt5
View Post

Good thing I stopped at 4.


Yup, I'm sticking with my Q6600 until it's completely obsolete.
 

·
Premium Member
Joined
·
23,733 Posts
anyways, no surprises there. just like how they realised that insanely high clockspeeds weren't the way to go during the P4 era and then started adding chips. they'll figure out something. intel's Tick Tock strategy comes to mind
 

·
Premium Member
Joined
·
4,657 Posts
We don't even need super computing, we just use super computers to simulate dumb things to see what this or that would do etc.
 

·
Premium Member
Joined
·
67,312 Posts
Quote:


Originally Posted by joemaniaci
View Post

I thought this was discussed months ago and it was because we are having an increase in cpu's, but we are not increasing the speed in which data can get to them.

Yup... it's a repost from Jan 15th, 2009.
 

·
Registered
Joined
·
1,843 Posts
well, gaming and graphic intense applications will soon be GPU reliant and not on the CPU so supermulti-CPU would really be useless unless its a super intense app that requires alot of calculations.
 

·
Registered
Joined
·
1,109 Posts
Quote:

Originally Posted by squall325 View Post
well, gaming and graphic intense applications will soon be GPU reliant and not on the CPU so supermulti-CPU would really be useless unless its a super intense app that requires alot of calculations.

I think you have that bachwards.
 

·
Premium Member
Joined
·
4,657 Posts
Quote:


Originally Posted by Sasquatch in Space
View Post

I think you have that bachwards.

I think you both have it backwards.

It's pretty balanced if you ask me.

CPU does physics and geometry calculations and other crap, gpu does pixel calculations and video displaying and other crap as well.
 
1 - 20 of 30 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top