using cpu only for feeding gpu

merle van osdol
merle van osdol
Joined: 1 Mar 05
Posts: 513
Credit: 60,724,446
RAC: 0
Topic 197786

I am doing only gpu tasks right now. Perseus Arm Survey. I have a headless computer which is set for hyperthreading (4/8). Does it make any difference if the setting is for HT or not? I am lazy and would rather not hook up a monitor and keyboard. Thanks.

merle

What is freedom of expression? Without the freedom to offend, it ceases to exist.

— Salman Rushdie

Jeroen
Jeroen
Joined: 25 Nov 05
Posts: 379
Credit: 740,030,628
RAC: 69

using cpu only for feeding gpu

There is some dependence on the CPU with the GPU BRP applications. On my systems, I have seen better performance for BRP5 with HT disabled. I think when HT is enabled, there is the possibility where two tasks may run on the same core which can slow down both tasks.

Since you are running Windows, another option is to download Process Lasso and set the BRP applications affinity to avoid non-physical cores. This program will also allow you to set the applications to a higher priority.

Jeroen

merle van osdol
merle van osdol
Joined: 1 Mar 05
Posts: 513
Credit: 60,724,446
RAC: 0

RE: There is some

Quote:

There is some dependence on the CPU with the GPU BRP applications. On my systems, I have seen better performance for BRP5 with HT disabled. I think when HT is enabled, there is the possibility where two tasks may run on the same core which can slow down both tasks.

Since you are running Windows, another option is to download Process Lasso and set the BRP applications affinity to avoid non-physical cores. This program will also allow you to set the applications to a higher priority.

Jeroen

thanks Jeroen,
going to try Lasso.

merle

What is freedom of expression? Without the freedom to offend, it ceases to exist.

— Salman Rushdie

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.