static void Main(string[] args)
{
string rootPath = string.Format(@"..{0}..{0}..{0}", Path.DirectorySeparatorChar);
uint numIterations = 0;
if (args.Length == 1 && !UInt32.TryParse(args[0], out numIterations))
{
rootPath = args[0];
}
else if (args.Length == 2)
{
UInt32.TryParse(args[0], out numIterations);
rootPath = args[1];
}
Console.WriteLine("Loading data from path {0}", rootPath);
var portfolioProvider = new PortfoliosProvider(rootPath + "datas/Portfolios");
var productParametersProvider = new StocksPricesProvider(rootPath + "datas/Parameters");
if (numIterations > 0)
{
Console.WriteLine("Benchmarking {0} times", numIterations);
Benchmark(UInt32.Parse(args[0]), portfolioProvider, productParametersProvider);
return;
}
Console.WriteLine(" * Starting BasicVarCalculator");
var basicPerf = RunCalculator <BasicVarCalculator>(portfolioProvider, productParametersProvider);
Console.WriteLine(" * Starting DataFlowCalculator with {0} processors", Environment.ProcessorCount);
var dataFlowPerf = RunCalculator <DataFlowVarCalculator>(portfolioProvider, productParametersProvider);
Console.WriteLine(" Delta t = {0} ms ({1:0.00} %)", dataFlowPerf - basicPerf, (dataFlowPerf - basicPerf) / (double)basicPerf * 100.0);
Console.ReadKey();
}
private static long RunCalculator <TCalculator>(PortfoliosProvider portfolioProvider,
StocksPricesProvider productParametersProvider) where TCalculator : IVarCalculator, new()
{
var stopwatch = new Stopwatch();
stopwatch.Start();
var calculator = new TCalculator
{
PortfolioProvider = portfolioProvider,
ProductParametersProvider = productParametersProvider
};
var result = calculator.Calculate();
stopwatch.Stop();
Console.WriteLine("\tResult -> {0}, Duration -> {1} ms",
result, stopwatch.ElapsedMilliseconds);
return(stopwatch.ElapsedMilliseconds);
}
static void Benchmark(uint nIterations, PortfoliosProvider portfolioProvider, StocksPricesProvider productParametersProvider)
{
double basicPerf = 0;
double dataFlowPerf = 0;
for (var i = 0; i < nIterations; ++i)
{
basicPerf += RunCalculator <BasicVarCalculator>(portfolioProvider, productParametersProvider);
dataFlowPerf += RunCalculator <DataFlowVarCalculator>(portfolioProvider, productParametersProvider);
}
basicPerf /= nIterations;
dataFlowPerf /= nIterations;
Console.WriteLine("{0} iterations: Basic = {1}, DataFlow = {2}", nIterations, basicPerf, dataFlowPerf);
Console.WriteLine(" Delta t = {0} ms ({1:0.00} %)", dataFlowPerf - basicPerf, (dataFlowPerf - basicPerf) / basicPerf * 100.0);
}
