C# - How to run multiple tasks on specific multiple cores

Question

I have multiple tasks and i need to run them on specific multiple cores or processors

simultaneously. For Example, if i have two different tasks or just one task but will run it twice

i want to run these two tasks on specific cores or processors simultaneously like task1 will run

on processor1 and task2 will run on processor2 at the same time. i know how to run each specific

processor but i do not know how to run them simultaneously. I was trying to use multithreading

then task parallel library to run different tasks on specific processors at the same time but i

failed. in below code, i was trying to use multithreading but it doesnt work or can i use task

parallel library???

PLEASE HELP!!!!!

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Threading; 
using System.Diagnostics;

namespace ConsoleApplication14 
     {     
        class Program     
          {                  
              public static double DumbCountSqr(int dumnum)         
               {               
                     Random random = new Random();             
                     int randomNumber = random.Next(0, 10);             
                      double result = 0;             
                    for (int i = 1; i < 10000; i++)             
                         {                 
                             for (int j = 1; j < 10000; j++)                 
                               {                     
                                    result += random.Next(0, 10) * Math.Sqrt(i) * Math.Sqrt(j) + Math.Abs(Math.Sqrt(i));                 
                               }             
                         }
                 return result;         
                }           
                public static void Main()         
                 {               
                       Thread t = new Thread(new ThreadStart(Go));             
                       t.Start();                
                     for (int i = 0; i < 1; i++)             
                        {                   
                                 Process Proc = Process.GetCurrentProcess();                 
                                 long AffinityMask = (long)Proc.ProcessorAffinity;                   
                                 AffinityMask = 0x0004;//processor    3                 
                                 Proc.ProcessorAffinity = (IntPtr)AffinityMask;                   
                                 var result1 = DumbCountSqr(i);                 
                                 Console.WriteLine("result1 =  " + result1);               
                        }         
                    }                          
                  public static void Go()         
                       {               
                             for (int i = 0; i < 1; i++)             
                                  {                                     
                                     Process Proc = Process.GetCurrentProcess();                     
                                     long AffinityMask = (long)Proc.ProcessorAffinity;                       
                                     AffinityMask = 0x0001;//processor    1                     
                                     Proc.ProcessorAffinity = (IntPtr)AffinityMask;                       
                                     var result2 = DumbCountSqr(i);                     
                                     Console.WriteLine("result2 =  " + result2);                
                                    }             
                        }       
                } 
              }