Q:

Can this multithreading program work correctly on an one-core processor?

This program parses text file. It has two threads. One of them reads file, another parses file. Can this multithreading program work correctly on an one-core processor? I added the waiting of thread ending before another thread creating in order to get correct work on an one-core processor.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Threading;
using System.Windows.Forms;

namespace lab2Form
{ 
    public partial class Form1 : Form
    {
        private CLogParser m_parser;
        private Thread m_parserThread, m_fileReaderThread;

        public Form1(string logName)
        {           
            InitializeComponent();  
            m_parser = new CLogParser();                
            timer1.Interval = 50;

            m_fileReaderThread = new Thread(m_parser.ThreadReadList);
            m_fileReaderThread.Start(logName);

            m_fileReaderThread.Join(); THE ADDED STRING

            m_parserThread = new Thread(m_parser.ThreadProc);
            m_parserThread.Start(); 

            timer1.Start();
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            if (m_parserThread.ThreadState != ThreadState.Stopped)
            {
                m_parser.ShowData(ref dmRequestsGridView, ref URLGridView, ref                      dmDataGridView, ref errorCodesGridView);
            }
            else
            {
                timer1.Stop();
                MessageBox.Show("Parsing Complete!");
            }
        }
    }
}

A:

Yes. In general, you can happily run a process with more threads than physical processors - if anything, you run into more threading issues if you have multiple physical processor cores (as it is suddenly possibly for two (or more) things to happen in the same clock cycle.

