private static void NBodyConsole()
{
int N = 10000;
int steps = 1;
double dt = 100000;
Body[] bodies = NBodySolver.GenerateRandomBodies(N);
// To make a fair comparison, we call
// each method once, to let the JIT kick in
NBodySolver.ParallelCalcForceAndUpdate(bodies, dt);
NBodySolver.SequentialCalcForceAndUpdate(bodies, dt);
Console.WriteLine("Starting parallel N-body solver...");
long start = DateTime.Now.Ticks / 10000;
for (int i = 0; i < steps; i++)
{
NBodySolver.ParallelCalcForceAndUpdate(bodies, dt);
}
long end = DateTime.Now.Ticks / 10000;
long tPar = end - start;
Console.WriteLine("Time spent: " + tPar);
Console.WriteLine("Starting sequential N-body solver...");
start = DateTime.Now.Ticks / 10000;
for (int i = 0; i < steps; i++)
{
NBodySolver.SequentialCalcForceAndUpdate(bodies, dt);
}
end = DateTime.Now.Ticks / 10000;
long tSeq = end - start;
Console.WriteLine("Time spent: " + tSeq);
Console.WriteLine("Speed up: " + ((double)tSeq / tPar));
}
