Aug 23, 2018  i have this note ( note: Rank = 1: Process affinity not being set (3).) i have this note ( note: Rank = 1: Process affinity not being set (3).) 248 Views Last Post 23 August 2018; derbaz posted this 09 August 2018 i have i7 laptop i did the conflagration for parallel 7 and GPgpu 1 but when starts to run i got these massage. Think the hotfix has prevented me from setting the priority or affinity of VNGame.exe From taskmanager. Unable to change priority The operation could not be completed. Access is denied. ` Unable to access or set process affinity The operation could not be completed. Access is denied. If I launch VNGame.exe manualy I can change the settings.

• Process Affinity Not Being Set Up Account

Inside the process, the call would be schedsetaffinity, or for pthreads stuff, pthreadsetaffinitynpOn a related note, if you're worrying about CPU affinity of your program, it may be worthwhile to pay attention to how it's doing memory allocation as well. Larger systems with memory attached to more than one controller (i.e.

Process Affinity Not Being Set Up Account

Multiple CPU sockets, each with their own) will have variable latency and bandwidth between different CPU-memory pairs. You'll want to look into NUMA affinity as well, using the numactl command or the system calls that it works with. One program I worked on got a 10% performance improvement from this.