//What happens when you press Map Reduce, number represents how many threads.
private void map_reduce_button_Click(object sender, EventArgs e)
{
try
{
resultsTextBox.Text = ""; //Clear current text in text box.
threads = (int)threadsTextBox.Value; //Number of threads.
var usageBytes0 = GC.GetTotalMemory(true); //Memory usage after GC and before processing.
var watch = System.Diagnostics.Stopwatch.StartNew(); //Start a timer for calculations.
Results res = MapReduce.MainMapReduceThread(processingData, threads); //Activate MapReduce
watch.Stop(); //End timer for calculation
var usageBytes = GC.GetTotalMemory(false) - usageBytes0; //Memory usage after processing/before GC. Minus previous memory.
var elapsedMs = watch.ElapsedMilliseconds; //Get timer value
resultsTextBox.Text = DataFunc.ResultsText(res); //Push results into Textbox
resultsTextBox.Text += "Overall run time: " + elapsedMs + " miliseconds. \n";
resultsTextBox.Text += "Current memory usage: " + usageBytes / 1024 + " KB";
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
//Construct - all calculations are done here using methods from DataFunc.
public Results(DataTable pdt)
{
this.Weight = pdt.Rows.Count; //How many lines table has, for usage in comparison for average (weight of result).
this.YearlyAvg = DataFunc.TotalYearlyAvg(pdt); //Calculate it here, this is not an array so one line is enough.
int[] bestYearResultsArray = DataFunc.BestYear(pdt); //Calculate result array once for usage in the next lines.
this.BestYear = bestYearResultsArray[0];
this.BestYearAmount = bestYearResultsArray[1];
int[] bestMonthResultsArray = DataFunc.BestMonthAndItsYear(pdt); //Calculate result array once for usage in the next lines.
this.BestMonthIndex = bestMonthResultsArray[0];
this.BestMonth = monthNames[BestMonthIndex];
this.BestMonthYear = bestMonthResultsArray[1];
this.BestMonthAmount = bestMonthResultsArray[2];
int[] worstYearResultsArray = DataFunc.WorstYear(pdt); //Calculate result array once for usage in the next lines.
this.WorstYear = DataFunc.WorstYear(pdt)[0];
this.WorstYearAmount = DataFunc.WorstYear(pdt)[1];
int[] worstMonthResultsArray = DataFunc.WorstMonthAndItsYear(pdt); //Calculate result array once for usage in the next lines.
this.WorstMonthIndex = worstMonthResultsArray[0];
this.WorstMonth = monthNames[WorstMonthIndex];
this.WorstMonthYear = worstMonthResultsArray[1];
this.WorstMonthAmount = worstMonthResultsArray[2];
int[] bestSeasonResultArray = DataFunc.BestSeasonAndItsYear(pdt); //Calculate result array once for usage in the next lines.
this.BestSeasonIndex = bestSeasonResultArray[0];
this.BestSeason = seasonNames[BestSeasonIndex];
this.BestSeasonYear = bestSeasonResultArray[1];
this.BestSeasonAmount = bestSeasonResultArray[2];
int[] worstSeasonResultArray = DataFunc.WorstSeasonAndItsYear(pdt); //Calculate result array once for usage in the next lines.
this.WorstSeasonIndex = worstSeasonResultArray[0];
this.WorstSeason = seasonNames[WorstSeasonIndex];
this.WorstSeasonYear = worstSeasonResultArray[1];
this.WorstSeasonAmount = worstSeasonResultArray[2];
}
