Setting 2600k CPU affinity in Shortcut text...?

gazjam

gazjam

gazjam

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16 Oct 2007
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Here's the Issue, hopefully a Windows boffin can advise on the solution :)

Windows 7 x64 running 3D software.
2600k set with HyperThreading On.
I run Lightwave 3D which has two separate programs in it.
One program (the modeller) only uses a single CPU core, the other (renderer) takes advantage of all the cores available in 2600k, 8 with HT.

Been reading up on Hyperthreading/Core Parking in Windows 7 and its better performance wise with my single core program to disable all virtual cores.
Core parking is good in this case.

I have been setting CPU Affinity for the program's process in Task Manager, but is a pain in the butt to have to do that every time I restart the program.

I think you can amend the Shortcut for the program to have a command that sets affinity every time the program is run?




Thanks for any help. :)
 
you create a batch file with something like

start "" /D"path to exe" /AFFINITY [hex affinity] exename.exe [parameters]

in it

open a dos window a type
start /?
to show help for start command
 
Hi, thanks for the reply.

It wasn't so much the processer priority I was looking to set though (Right click process in Task manager - Options to set priority(no) or Set Affinity(Yes) , but which CPU cores were activated when i ran the program with the amended shortcut link?


Sorry if I've misunderstood your reply. :)

thanks.
 
C:\Windows\System32\cmd.exe /C start "" /affinity 1 "path to your program"

You could try that as your shortcut, that would start program using only CPU 0.
 
gazjam said:
Hi, thanks for the reply.

It wasn't so much the processer priority I was looking to set though (Right click process in Task manager - Options to set priority(no) or Set Affinity(Yes) , but which CPU cores were activated when i ran the program with the amended shortcut link?


Sorry if I've misunderstood your reply. :)

thanks.
Click to expand...

No worries I shall explain
start "" /D"path to exe" /AFFINITY [hex affinity] exename.exe [parameters]
/AFFINITY [hex affinity]

^this bit is where you set the affinity for the program you are running
AFFINITY , is which CPU core to run something ON
 
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