public static MatrixMultiplier GetMatrixMultiplier(MultiplicationMethod method)
{
MatrixMultiplier multiplier = null;
switch (method)
{
case MultiplicationMethod.Simple:
multiplier = new SimpleMultiplier();
break;
case MultiplicationMethod.Winograd:
multiplier = new WinogradMultiplier();
break;
}
return(multiplier);
}
static void TestWinograd()
{
// Testing even size
Matrix m1 = new Matrix(4, 4);
Matrix m2 = new Matrix(4, 4);
Matrix.GenerateRandom(m1, 0, 16);
Matrix.GenerateRandom(m2, 0, 16);
//FillSequentially(m1, 1, 1);
//FillSequentially(m2, 16, -1);
Matrix correctResult = new SimpleMultiplier().Multiply(m1, m2);
Matrix testResult = new WinogradMultiplier().Multiply(m1, m2);
Console.WriteLine("Testing even-sized matrixes");
Console.WriteLine("\nFirst matrix: ");
Console.WriteLine(m1);
Console.WriteLine("\nSecond matrix: ");
Console.WriteLine(m2);
Console.WriteLine("\nTest result: ");
Console.WriteLine(testResult);
bool correct = correctResult.Equals(testResult);
Console.WriteLine(correct ? "CORRECT" : "WRONG RESULT!");
if (!correct)
{
Console.WriteLine("\nEstimated result: ");
Console.WriteLine(correctResult);
}
// Testing odd size
m1 = new Matrix(3, 3);
m2 = new Matrix(3, 3);
Matrix.GenerateRandom(m1, 0, 9);
Matrix.GenerateRandom(m2, 0, 9);
//FillSequentially(m1, 1, 1);
//FillSequentially(m2, 9, -1);
correctResult = new SimpleMultiplier().Multiply(m1, m2);
testResult = new WinogradMultiplier().Multiply(m1, m2);
Console.WriteLine("\nTesting odd-sized matrixes");
Console.WriteLine("\nFirst matrix: ");
Console.WriteLine(m1);
Console.WriteLine("\nSecond matrix: ");
Console.WriteLine(m2);
Console.WriteLine("\nTest result: ");
Console.WriteLine(testResult);
correct = correctResult.Equals(testResult);
Console.WriteLine(correct ? "CORRECT" : "WRONG RESULT!");
if (!correct)
{
Console.WriteLine("\nEstimated result: ");
Console.WriteLine(correctResult);
}
}
