public void Finish()
{
// Perform group wide reduction
ReducedValue = GroupExtensions.Reduce <T, TReduction>(ReducedValue);
if (Group.IsFirstThread)
{
GetReduction().AtomicApply(ref Output[0], ReducedValue);
}
}
/// <summary>
/// The actual reduction implementation.
/// </summary>
/// <typeparam name="T">The underlying type of the reduction.</typeparam>
/// <typeparam name="TReduction">The type of the reduction logic.</typeparam>
/// <param name="input">The input view.</param>
/// <param name="output">The output view.</param>
internal static void ReductionKernel <T, TReduction>(
ArrayView <T> input,
ArrayView <T> output)
where T : unmanaged
where TReduction : struct, IScanReduceOperation <T>
{
var stride = GridExtensions.GridStrideLoopStride;
TReduction reduction = default;
var reduced = reduction.Identity;
for (var idx = Grid.GlobalIndex.X; idx < input.Length; idx += stride)
{
reduced = reduction.Apply(reduced, input[idx]);
}
reduced = GroupExtensions.Reduce <T, TReduction>(reduced);
if (Group.IsFirstThread)
{
reduction.AtomicApply(ref output[0], reduced);
}
}
