View source for Cuda:VtkCudaDataSet

The vtkCudaDataSet is a data-container used to communicate data structures between CUDA and host memory in an easy way.
This is Part of the [[Volume Rendering With Cuda]] implementation.
=Overview=
[[Image:VtkCudaDataSet.png|frame|none|VTK integration of the Cuda DataSet for Images]]
In the picture you see how the vtkImageDataSet will be embedded into the Pipeline of VTK.

The ImageDataSet will act as a container for communicating sets of arbitrary size from a host memory to the memory of a CUDA card and back again.
As a performance leap the data should also be stored within a non-paged memory range on the host side.

=Implementation=
==Synchronization==
The most important part about communication CUDA datasets is to upload/download and synchronize between Host and CUDA memory. These functions will be implemented for this to be safe
#SetDataSize
#SetCommunicationType (Host or normal memory range)
#Upload
#Download
#Synchronize
#Events:
##HostMemoryChanged
##CudaMemoryChanged
##HostUpdateFinished
##CudaUpdateFinished
#...

==Used vtkCudaSupport Classes==
As this is intertwined with memory access most of the vtkCudaMemory* classes will be used within this class to communicate and store data.
Eventually events and streaming will be integrated.

==Used Cuda Functions==
[NICHOLAS: Please add all the CUDA functions you would like this class to support here]

==Performance Issues==
#Data could be read directly to the vtkCudaDataSet to spare the conversion from a vtkDataSet.
#Host Memory
#Use the CUDA-Memory-Stream for concurrent upload and download of data
##Use the CUDA-Events to signal the end of Data Streaming