csharp_thread_start_processor_affinity

gistfile1.txt

// https://stackoverflow.com/questions/2510593/how-can-i-set-processor-affinity-to-a-thread-or-a-task-in-net	
using System;
using System.Diagnostics;
using System.Threading;

static void Fibonacci(int n)
{
  int a = 0, b = 1, c = 0;
  for (int i = 0; i < n; i++)
  {
    c = a + b;
    a = b;
    b = c;
  }
  Console.WriteLine($"Thread {Thread.CurrentThread.ManagedThreadId}: Fibonacci({n}) = {c}");
}

int processorCount = Environment.ProcessorCount;

    for (int i = 0; i < processorCount; i++)
    {
        int processorNum = i;
        Thread thread = new Thread(() => Fibonacci(processorNum * 10));

        // Set processor affinity for each thread
        thread.ProcessorAffinity = (IntPtr)(1 << processorNum);

        thread.Start();
    }