Support large than 64 cores on Windows #27
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The current
GetProcessAffinityMaskAPI only supports up to 64 cores on Windows.The new implementation utilizes
GetProcessGroupAffinityto retrieve the CPU group associated with the process, andGetActiveProcessorCountto determine the number of CPUs within this group. Finally, use the newSetThreadGroupAffinityto set the CPU affinity.It is worth noting that
GetThreadAffinityMaskcannot obtain the affinity Mask of each thread group. It can only obtain the affinity mask of the "primary" group, so all CPUs are obtained here fromGetActiveProcessorCountUse Microsoft's official windows api binding
windows-sysinstead ofwinapicrate. These APIs support at least Windows 7 and Windows Server 2008.It has been tested on two Sockets (two NUMA nodes) and a 13700k CPU machine.