How to run single core on multi core

one.123

-0-;;
Joined
13 Jan 2004
Messages
231
i have a quad-core cpu, and i found out after trying starcraft, that running it on a multi core processor generates an insane amount of lag. so im looking for a program that will let me use only 1 core when running certain programs. thanks in advance
 

Sazar

F@H - Is it in you?
Political Access
Joined
12 Apr 2002
Messages
14,905
Simply startup your taskmanager and select the process.

Right click will bring up a menu, on the menu you will find SET AFFINITY.

You should see a small dialog box with 4 cores listed.

Uncheck all but 1 and voila, you are all set.

This is built into windows btw, you don't need other tools.

Cheers :)
 

Geffy

OSNN Veteran Addict
Joined
18 Mar 2002
Messages
7,805
Is there a way to force an application to run on only one core though, something akin to the WinXP compatibility options
 

Sazar

F@H - Is it in you?
Political Access
Joined
12 Apr 2002
Messages
14,905
The "set affinity" does that for you. I am not sure if there is something that can be setup to FORCE it to run automatically w/o some kind of registry hacks or 3'rd party applications OR changing the command-line startup options.

The last should be, technically, the easiest route to do it.
 

Geffy

OSNN Veteran Addict
Joined
18 Mar 2002
Messages
7,805
Yeah I got that you could do it to an actively running process, but it was the persistence I think which was desired. Yeah the command line method or potentially running the exe through another program much like the UNIX nice(1) command.
 

American Zombie

Moderator
Staff member
Political Access
Joined
23 Jun 2004
Messages
2,961
Is there a way to force an application to run on only one core though, something akin to the WinXP compatibility options

Yes there is with the IMAGECFG tool. I just ran it on the Far Cry executable and now Far Cry runs on one core without having to task out/set affinity. I first read about imagecfg tool here then I found the tool here. It is also on the Windows NT 4.0 CD. I would suggest making a copy of your executable before running the tool just in case the result is not what you expected.
 
Last edited:

Geffy

OSNN Veteran Addict
Joined
18 Mar 2002
Messages
7,805
cool, take it it brands the exe with a big "SINGLE CORE" stamp much like cattle :p
 

Members online

No members online now.

Latest profile posts

Electronic Punk wrote on Sazar's profile.
Rest in peace my friend, been trying to find you and finally did in the worst way imaginable.
Terrahertz wrote on Electronic Punk's profile.
Yo fellas!
Electronic Punk wrote on Sazar's profile.
Where are you buddy?
Perris Calderon wrote on Electronic Punk's profile.
Hey EP! All good with me, applying for Microsoft MVP right now, should have done this a while ago.

Notifications don't work, I only found your response by coming back to hunt up some threads, if you want, give me your email address so we can keep in touch easier!
Perris Calderon wrote on Electronic Punk's profile.
EP, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS

Been running around Quora lately, luv it there!

Forum statistics

Threads
61,997
Messages
673,411
Members
5,590
Latest member
AntonioPR