private async void ButtonCalculate_Click(object sender, RoutedEventArgs e)
{
LabelStatus.Content = "calculating...";
var watch = Stopwatch.StartNew();
try
{
matr1 = matrixMultiplier.InitRandomMatrix(Matr1RowsAmount, Matr1ColsAmount);
matr2 = matrixMultiplier.InitRandomMatrix(Matr2RowsAmount, Matr2ColsAmount);
int[,] res = await matrixMultiplier.MultiplyAsync(matr1, matr2);
//Debug.WriteLine("Matrix default method: ");
//PrintMatrix(res);
}
catch (AggregateException ae)
{
MessageBox.Show("Wrong matrix sizes");
LabelStatus.Content = "free";
return;
}
watch.Stop();
var elapsedMs = watch.ElapsedMilliseconds;
LabelDefaultTime.Content = elapsedMs.ToString();
try
{
watch = Stopwatch.StartNew();
var matr1SplitList = MatrixMultiplier.Split2DArrayIntoRows(matr1, 3);
var matr2SplitList = MatrixMultiplier.Split2DArrayIntoCols(matr2, 3);
IEnumerable <Task <MatrixWithId> > multiplyMatrixTasksQuery = from m1 in matr1SplitList
//join m2 in matr2SplitList on matr1SplitList.IndexOf(m1) equals matr2SplitList.IndexOf(m2)
from m2 in matr2SplitList
select matrixMultiplier.MultiplyAsync(m1, m2);
Task <MatrixWithId>[] multiplyMatrixTasks = multiplyMatrixTasksQuery.ToArray();
MatrixWithId[] resultChunks = await Task.WhenAll(multiplyMatrixTasks);
resultChunks.OrderBy(x => x.id1).ThenBy(x => x.id2);
int[,] res = new int[Matr1RowsAmount, Matr1ColsAmount];
int currRowIndex = 0;
int currColIndex = 0;
int rowOffset = 0;
int colOffset = 0;
int currMatrId = resultChunks[0].id1;
for (int i = 0; i < resultChunks.Length; i++)
{
if (currMatrId == resultChunks[i].id1)
{
currColIndex += colOffset;
}
else
{
currColIndex = 0;
currRowIndex += rowOffset;
}
currMatrId = resultChunks[i].id1;
rowOffset = 0;
for (int j = 0; j < resultChunks[i].matr.GetLength(0); j++)
{
colOffset = 0;
for (int k = 0; k < resultChunks[i].matr.GetLength(1); k++)
{
res[j + currRowIndex, k + currColIndex] = resultChunks[i].matr[j, k];
colOffset++;
}
rowOffset++;
}
}
//Debug.WriteLine("Matrix async method: ");
//PrintMatrix(res);
watch.Stop();
elapsedMs = watch.ElapsedMilliseconds;
LabelAsyncTime.Content = elapsedMs.ToString();
}
catch (AggregateException ae)
{
Debug.WriteLine("*** ERROR *** " + ae.Message);
return;
}
LabelStatus.Content = "free";
}
private void InitMatrixMultiplier()
{
matrixMultiplier = new MatrixMultiplier();
}