private static void CompareTimeOfWorkDependingOnMatrixSize()
{
var multipliers = new List <(string Name, IMatrixMultiplier Multiplier)>
{
("Synchronous Multiplier", new SynchronousMatrixMultiplier()),
("Parallel.For Multiplier", new ParallelForMatrixMultiplier()),
("Striped Parallelizing Multiplier", new StripedParallelizingMatrixMultiplier()),
("Sequentially Parallelizing Multiplier", new SequentiallyParallelizingMatrixMultiplier())
};
var generator = new MatrixGenerator();
for (var i = 1; i < 1001; i += i < 100 ? 1 : i < 500 ? 10 : 100)
{
Console.WriteLine($"Size: {i} * {i}");
var left = generator.Generate(i, i);
var right = generator.Generate(i, i);
foreach (var(name, multiplier) in multipliers)
{
var timestamp = ElapseWorkTime(multiplier, left, right);
Console.WriteLine($"{name} - {timestamp.TotalMilliseconds}");
}
Console.WriteLine();
}
}
public static void Main()
{
int matrixLength = ConsoleInput.GetInput();
Matrix matrix = MatrixGenerator.Generate(matrixLength);
ConsoleOutput.PrintMatrix(matrix);
}
public void ThrowArgumentOutOfRangeException_WhenProvidedMatrixSizeIsNotPositive(int matrixSize)
{
// arrange
var matrixGenerator = new MatrixGenerator();
// act and assert
Assert.Throws <ArgumentOutOfRangeException>(() => matrixGenerator.Generate(matrixSize));
}
public void NotThrow_WhenValidMatrixSizeIsPassed()
{
// arrange
var matrixGenerator = new MatrixGenerator();
int matrixSize = 10;
// act and assert
Assert.DoesNotThrow(() => matrixGenerator.Generate(matrixSize));
}
private static void Main(string[] args)
{
const int n = 6;
var generator = new MatrixGenerator(n);
var matrix = generator.Generate();
for (var y = 0; y < n; y++)
{
for (var x = 0; x < n; x++)
Console.Write("{0,4:D} ", matrix[x, y]);
Console.WriteLine();
Console.WriteLine();
}
}
public void ReturnCorrectlyFilledMatrix_WhenPassedMatrixSizeIsOne()
{
// arrange
var expectedMatrix = new int[, ]
{
{ 1 }
};
var matrixGenerator = new MatrixGenerator();
int matrixsize = 1;
// act
var resultMatrix = matrixGenerator.Generate(matrixsize);
// assert
CollectionAssert.AreEqual(expectedMatrix, resultMatrix);
}
static void Main(string[] args)
{
Console.WriteLine("Enter maximum size of matrix to multiply");
int N = int.Parse(Console.ReadLine());
Console.WriteLine("Enter count of reiteration");
int numberOfTests = int.Parse(Console.ReadLine());
var results = new List <Result>();
var start = DateTime.Now;
for (int i = 1; i <= N; i *= 2)
{
Result r = new Result(i.ToString());
for (int n = 1; n <= numberOfTests; n++)
{
Console.WriteLine("Testing {0} for {1}/{2} times.", i, n, numberOfTests);
var a = MatrixGenerator.Generate(i);
var b = MatrixGenerator.Generate(i);
Stopwatch t1 = Stopwatch.StartNew();
var normal = Matrix.NormalMultiply(a, b);
t1.Stop();
Stopwatch t2 = Stopwatch.StartNew();
var strassen = Matrix.StrassenMultiply(a, b);
t2.Stop();
r.Times1.Add(t1.Elapsed.TotalSeconds);
r.Times2.Add(t2.Elapsed.TotalSeconds);
}
results.Add(r);
}
string consoleFormat = "{0}\t{1:N6}s\t{2:N6}s";
WriteResults(Console.Out, results, consoleFormat, "Size \t Normal \t Straussen");
Console.WriteLine(Environment.NewLine + "Total time " + (DateTime.Now - start).ToString());
string fileFormat = "{0};{1:N6};{2:N6}";
string fileName = string.Format("results_{0}_{1}_{2}.csv", N, numberOfTests, DateTime.Now.ToFileTime());
SaveResultsToCSV(results, fileFormat, "Size of matrix;Normal multiply;Straussen multiply", fileName);
Console.ReadKey();
}
public void ReturnCorrectlyFilledMatrix_WhenPassedMatrixSizeIsThree()
{
// arrange
var expectedMatrix = new int[, ]
{
{ 1, 7, 8 },
{ 6, 2, 9 },
{ 5, 4, 3 }
};
var matrixGenerator = new MatrixGenerator();
int matrixSize = 3;
// act
var resultMatrix = matrixGenerator.Generate(matrixSize);
CollectionAssert.AreEqual(expectedMatrix, resultMatrix);
}
public void ReturnCorrectlyFilledMatrix_WhenPassedMatrixSizeIsFive()
{
// arrange
var expectedMatrix = new int[, ]
{
{ 1, 13, 14, 15, 16 },
{ 12, 2, 21, 22, 17 },
{ 11, 23, 3, 20, 18, },
{ 10, 25, 24, 4, 19 },
{ 9, 8, 7, 6, 5 }
};
var matrixGenerator = new MatrixGenerator();
int matrixsize = 5;
// act
var resultMatrix = matrixGenerator.Generate(matrixsize);
// assert
CollectionAssert.AreEqual(resultMatrix, expectedMatrix);
}
public void ReturnCorrectlyFilledMatrix_WhenPassedMatrixSizeIsSix()
{
// arrange
var expectedMatrix = new int[, ]
{
{ 1, 16, 17, 18, 19, 20, },
{ 15, 2, 27, 28, 29, 21, },
{ 14, 31, 3, 26, 30, 22, },
{ 13, 36, 32, 4, 25, 23, },
{ 12, 35, 34, 33, 5, 24, },
{ 11, 10, 9, 8, 7, 6 }
};
var matrixGenerator = new MatrixGenerator();
int matrixSize = 3;
// act
var resultMatrix = matrixGenerator.Generate(matrixSize);
CollectionAssert.AreEqual(expectedMatrix, resultMatrix);
}
private static void CompareTimeOfWorkOnConstantMatrixSize()
{
Console.WriteLine("Generating matrices...");
var generator = new MatrixGenerator();
var left = generator.Generate(500, 500);
var right = generator.Generate(500, 500);
var cores = Environment.ProcessorCount;
var threadCounts = new int[8] {
1, 2, 3, cores, cores + 1, cores * 2, cores * 3, cores * 4
};
Console.WriteLine("Calculating the time of Synchronous Parallelizing Matrix Multiplier work...");
var synchronousMultiplierTimestamps = new List <(string, TimeSpan)>
{
("1", ElapseWorkTime(new SynchronousMatrixMultiplier(), left, right))
};
Console.WriteLine("Calculating the time of Parallel.For Matrix Multiplier work...");
var parallelForMultiplierTimestamps = new List <(string, TimeSpan)>
{
("Auto", ElapseWorkTime(new ParallelForMatrixMultiplier(), left, right))
};
Console.WriteLine("Calculating the time of Striped Parallelizing Matrix Multiplier work...");
var strippedMultiplierTimestamps = new List <(string, TimeSpan)>();
foreach (var threadCount in threadCounts)
{
var strippedMultiplier = new StripedParallelizingMatrixMultiplier(threadCount);
strippedMultiplierTimestamps.Add((threadCount.ToString(), ElapseWorkTime(strippedMultiplier, left, right)));
}
Console.WriteLine("Calculating the time of Sequentially Parallelizing Matrix Multiplier work...");
var sequentialMultiplierTimestamps = new List <(string, TimeSpan)>();
foreach (var threadCount in threadCounts)
{
var sequentialMultiplier = new SequentiallyParallelizingMatrixMultiplier(threadCount);
sequentialMultiplierTimestamps.Add((threadCount.ToString(), ElapseWorkTime(sequentialMultiplier, left, right)));
}
var multipliersWorkTime = new List <(string Name, List <(string ThreadsCount, TimeSpan Timespan)> Timespans)>
{
("SynchronousMatrixMultiplier", synchronousMultiplierTimestamps),
("ParallelForMatrixMultiplier", parallelForMultiplierTimestamps),
("SequentiallyParallelizingMatrixMultiplier", sequentialMultiplierTimestamps),
("StripedParallelizingMatrixMultiplier", strippedMultiplierTimestamps)
};
foreach (var(name, timespans) in multipliersWorkTime)
{
Console.WriteLine(name);
Console.WriteLine("Threads - Time");
foreach (var(threadsCount, timestamp) in timespans)
{
Console.WriteLine($"{threadsCount} - {FormatTimeSpan(timestamp)}");
}
Console.WriteLine();
}
}