VBS -> C# translation of http://msdn.microsoft.com/en-us/library/windows/desktop/aa394317%28v=vs.85%29.aspx determine number socket / cores and display percent processor load for each core and total for the socket.

gistfile1.cs

using System;
using System.Management;

namespace WMISample
{
    public class MyWMIQuery
    {
        public static void Main()
        {
            try
            {
                string totalcore = "";

                var searcher = new ManagementObjectSearcher("SELECT * FROM Win32_Processor");

                var iSocket = 1;
                foreach (ManagementObject objProcessor in searcher.Get())
                {
                    var iNumLogicalProcessors = int.Parse(objProcessor["NumberOfLogicalProcessors"].ToString());
                    var iNumCores = int.Parse(objProcessor["NumberOfCores"].ToString());

                    var architecture = "";
                    if (iNumCores > 1)
                    {
                        architecture = iNumLogicalProcessors > iNumCores ? "MULTICOREHT" : "MULTICORE";
                    }
                    else
                    {
                        architecture = iNumLogicalProcessors > iNumCores ? "SINGLECOREHT" : "SINGLECORE";
                    }

                    var innerSearcher = new ManagementObjectSearcher("SELECT * FROM Win32_PerfFormattedData_PerfOS_Processor");
                    var innerSearcherCollection = innerSearcher.Get();

                    var iHypThdModule = 1;
                    var iCore = 1;
                    var iTotalHypThdModule = (innerSearcherCollection.Count - 1)/iNumCores;



                    foreach (var objPref in innerSearcherCollection)
                    {
                        if (!objPref["Name"].ToString().Equals("_Total"))
                        {
                            switch (architecture)
                            {
                                case "MULTICOREHT":
                                    Console.WriteLine("Multicore Hyper Threading");
                                    Console.WriteLine("Socket " + iSocket + " Core: " + iCore + " HT Module " + iHypThdModule);
                                    Console.WriteLine("Percentage Processor Load: " + objPref["PercentProcessorTime"]);

                                    iHypThdModule++;
                                    if (iHypThdModule > iTotalHypThdModule)
                                    {
                                        iHypThdModule = 1;
                                        iCore = iCore + 1;
                                    }
                                    break;

                                case "SINGLECOREHT":
                                    Console.WriteLine("Single Core Hyper Threading");
                                    Console.WriteLine("Socket: " + iSocket + "Core 1 HT Module " + iHypThdModule);
                                    Console.WriteLine("Percentage Processor Load: " + objPref["PercentProcessorTime"]);
                                    iHypThdModule++;
                                    break;
                                    
                                case "MULTICORE":
                                    Console.WriteLine("Multicore");
                                    Console.WriteLine("Socket: " + iSocket + " Core " + iCore);
                                    Console.WriteLine("Percentage Processor Load: " + objPref["PercentProcessorTime"]);
                                    iCore++;
                                    break;
                                
                                case "SINGLECORE":
                                    Console.WriteLine("Single Core");
                                    Console.WriteLine("Socket " + iSocket + " Core 1");
                                    Console.WriteLine("Percentage Processor Load: " + objPref["PercentProcessorTime"]);
                                    break;


                            }
                        }
                        else
                        {
                            totalcore = objPref["PercentProcessorTime"].ToString();
                        }

                    }

                    iSocket++;
                    Console.WriteLine("\n\nSocket total " + totalcore);
                }

                

            }
            catch (ManagementException e)
            {
                Console.WriteLine("An error occurred while querying for WMI data: " + e.Message);
            }

            Console.ReadLine();
        }
    }
}