public VolumeStorage(VolumeStorage storage, Shape newShape) : base(newShape)
{
if (storage == null)
{
throw new ArgumentNullException(nameof(storage));
}
if (storage._hostPointer == null)
{
throw new ArgumentException();
}
this._isOwner = false;
this._hostPointer = storage._hostPointer;
this.Shape = newShape;
this.Context = storage.Context;
this._allocatedOnDevice = storage._allocatedOnDevice;
storage.CopyToDevice();
this.Location = DataLocation.Device;
this.DeviceBuffer = new CudaDeviceVariable <double>(storage.DeviceBuffer.DevicePointer);
this.ConvolutionBackwardFilterStorage = storage.ConvolutionBackwardFilterStorage;
this.ConvolutionBackwardStorage = storage.ConvolutionBackwardStorage;
this.ConvolutionStorage = storage.ConvolutionStorage;
this.ReductionStorage = storage.ReductionStorage;
this.DropoutStorage = storage.DropoutStorage;
this.DropoutStateStorage = storage.DropoutStateStorage;
}
private static CudaHostMemoryRegion InitializeSharedMemory(long elementCount)
{
var sharedMemory = new CudaHostMemoryRegion(elementCount * sizeof(double));
// Zero out
FillWithZeroes(sharedMemory.Start, sharedMemory.ByteCount);
return(sharedMemory);
}
public VolumeStorage(Shape shape, GpuContext context, long length = -1) : base(shape)
{
this.Context = context;
// Take care of unkown dimension
if (length != -1)
{
this.Shape.GuessUnkownDimension(length);
}
// Host
this._hostPointer = InitializeSharedMemory(this.Shape.TotalLength);
this._isOwner = true;
}