private void ZeroColumn(IBitMatrix matrix, int rows, int j, int k)
{
if (threads == 1 || rows < multiThreadedCutoff)
{
for (int i = 0; i < rows; i++)
{
if (i != j && matrix[i, k])
{
matrix.XorRows(i, j, k);
}
}
return;
}
signal.Reset();
int counter = threads;
for (int thread = 0; thread < threads; thread++)
{
ThreadPool.QueueUserWorkItem(delegate(Object o)
{
for (int i = (int)o; i < rows; i += threads)
{
if (i != j && matrix[i, k])
{
matrix.XorRows(i, j, k);
}
}
if (Interlocked.Decrement(ref counter) == 0)
{
signal.Set();
}
}, thread);
}
signal.WaitOne();
}
private void ZeroColumn(IBitMatrix matrix, int rows, int j, int k)
{
if (threads == 1 || rows < multiThreadedCutoff)
{
for (int i = 0; i < rows; i++)
{
if (i != j && matrix[i, k])
{
matrix.XorRows(i, j, k);
}
}
return;
}
Parallel.For(0, threads, thread =>
{
for (int i = thread; i < rows; i += threads)
{
if (i != j && matrix[i, k])
{
matrix.XorRows(i, j, k);
}
}
});
}