/// <summary>
/// Constructs the base class for all exchange buffer implementations.
/// </summary>
/// <param name="buffer">The memory buffer to use.</param>
/// <param name="mode">The exchange buffer mode to use.</param>
internal ExchangeBufferBase(MemoryBuffer <T, TIndex> buffer,
ExchangeBufferMode mode)
: base(buffer.Accelerator, buffer.Extent.Size)
{
cpuMemory = buffer.Accelerator is CudaAccelerator &&
mode == ExchangeBufferMode.PreferPagedLockedMemory
? CudaViewSource.Create(buffer.LengthInBytes)
: (ViewPointerWrapper)UnmanagedMemoryViewSource.Create(
buffer.LengthInBytes);
cpuMemoryPointer = cpuMemory.NativePtr.ToPointer();
}
/// <summary>
/// Constructs the base class for all exchange buffer implementations.
/// </summary>
/// <param name="accelerator">The associated accelerator.</param>
/// <param name="extent">The extent (number of elements).</param>
/// <param name="mode">The exchange buffer mode to use.</param>
protected ExchangeBufferBase(
Accelerator accelerator,
TIndex extent,
ExchangeBufferMode mode)
: base(accelerator, extent)
{
CPUMemory = Accelerator is CudaAccelerator &&
mode == ExchangeBufferMode.PreferPageLockedMemory
? CudaViewSource.Create(LengthInBytes)
: (ViewPointerWrapper)UnmanagedMemoryViewSource.Create(LengthInBytes);
var baseView = new ArrayView <T>(CPUMemory, 0, Length);
CPUView = new ArrayView <T, TIndex>(baseView, extent);
}
