Next Meeting - 5th May 2024 Affinity Mask Calculator - 32 Core Edition Affinity Mask Calculator Prepar3D - P3D - Flight Simulator X - FSX Steam Edition Contributor Ted Porter Important Note! Prepar3D - P3D Users Please be aware that Prepar3D - P3D by default will use all Cores, and most importantly all Threads on those CPUs that have Hyper Threading enabled. On machines with four or more cores, P3D will dedicate logical core #0 for rendering tasks. Therefore it is suggested that the Expert Mode calculator be used to tune your Prepar3D - P3D Affinity Mask rather that the Easy Mode calculator. Affinity Mask Calculator - 32 Core Edition - [Easy Mode] - Select CPU By Core Count Core Count 02 04 06 08 10 12 14 16 18 20 22 24 26 28 30 32 Hyper-threading Enabled Calculate fsx.cfg or prepar3d.cfg configuration file entry to add/change [JOBSCHEDULER] AffinityMask=n Affinity Mask Calculator - 32 Core Edition - [Expert Mode] - Select Individual CPU Cores Core[00] Core[01] Core[02] Core[03] Core[04] Core[05] Core[06] Core[07] Core[08] Core[09] Core[10] Core[11] Core[12] Core[13] Core[14] Core[15] Core[16] Core[17] Core[18] Core[19] Core[20] Core[21] Core[22] Core[23] Core[24] Core[25] Core[26] Core[27] Core[28] Core[29] Core[30] Core[31] Hyper-threading Enabled Calculate fsx.cfg or prepar3d.cfg configuration file entry to add/change [JOBSCHEDULER] AffinityMask=n