/// <summary>
/// Updates the host data by copying the GPU data to the host data.
/// </summary>
/// <param name="lCount">Optionally, specifies a count (less than Count) to transfer.</param>
/// <returns>An array of the host data is returned.</returns>
public T[] update_cpu_data(long lCount = -1)
{
if (lCount >= 0)
{
if (lCount > m_lCapacity)
{
throw new ArgumentOutOfRangeException();
}
m_lCount = lCount;
}
check_device();
if (m_lCount == 0)
{
m_rgCpuData = new List <T>().ToArray();
}
else
{
m_rgCpuData = m_cuda.GetMemory(m_hGpuData, m_lCount);
}
return(m_rgCpuData);
}