Hello,
I'm using ParaView Catalyst for in situ visualization of some scientific simulation codes, mainly CFD and DEM. I have implemented a demo in which a small simulation code is interfaced with the ParaView Catalyst libraries. However, our major codes that are in use are based on GPU(written in CUDA) and the data generated by the simulation is in the memory of GPU. As far as I know, ParaView and VTK are CPU codes and in my case, I have to copy the data from memory of GPU to memory of CPU and then use Catalyst. That is not very ideal in respect of efficiency. I know there seems to be some professionals of computer visualization developing GPU-based VTK pipeline using CUDA, but I'm not computer professional and I can't use CUDA. I want to know if there is any open source GPU-based VTK pipeline, or if I do have to copy data from GPU to use Catalyst, is it worth the effort? Thanks a lot! -Zhang
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