Windows 10: Automatic/scripting changing processor affinity on an already running application?

HiI am looking to see if there is a way to change the processor affinity on a running application.Maybe by using bat, python or the likes to launch the parent application and subsequently change the affinity.Here is the basic problem:I have App-A, that is started manually when needed.App-A then start App-B which is needed to operate as intended.It is App-B i wish to change the affinity for, post launch.App-A should be allowed to use all the cores unchangedAny ideas?- KlausPS: I am aware it can be changed manually, and is what I am currently doingPPS: Assuming I can't use start /affinity laun

:)

 

CPU / CPU Processor problems / Processor affinity

We appreciate the information you provided. Your processor is working as expected. CPU affinity is only showing CPU (0) since 1 processor is working at the moment. It's very likely that your computer is using a balanced power plan, so we suggest changing
your power plan to High Performance by following these steps:

• Right-click Start.
• Click Power Options.
• Choose High Performance.

In addition to that, we recommend installing the latest updates to keep your system current and secure. Go to
Start > Settings > Update & Security > Check for updates.

Some programs may also be automatically launching whenever you boot your computer, affecting the performance. To disable them, follow these steps:

• Right-click your taskbar.
• Click Task Manager.
• Under the Startup tab, find the programs that you don't need.
• Right-click the program and choose Disable.

You're also using your computer for a game that was designed to run on an earlier version of Windows, so it's possible that it's slowing down your computer. In this case, use the Compatibility Troubleshooter to find and fix problems with the program using
these steps:

• Click Start.
• Type Troubleshooting and press Enter.
• Click Run programs made for previous versions of Windows.
• Click Next.
• Choose the program from the list and click Next.

Let us know if you need further assistance with your computer.

 

Application Processor Affinity Problem

Excellent! While the problem is solved, that is a very useful article. Thank You! Funny thing is, I'm frequent visitor to SevenForums and never crossed paths with that page.

Ruled out the hardware as no other programs are being affected in such a way.

 

Application Processor Affinity Problem

I always create a right click shortcuts to launch an app with desired affinity, i.e run with 15 affinity, etc. Here's the tutorial with preset reg files ready

https://www.sevenforums.com/tutorials/83864-processor-affinity-add-set-affinity-context-menu.html