How do you use it for video encoding/decoding? Won't the uncompressed video (input for encoding or output of decoding) be too large to transmit over network practically?
Well, the ffmpeg-over-ip tool in the GP does it by just not sending uncompressed video. It's more of an ffmpeg server where the server is implicitly expected to have access to a GPU that the client doesn't have, and only compressed video is being sent back and forth in the form of video streams that would normally be the input and output of ffmpeg. It's not a generic GPU server that tries to push a whole PCI bus over the network, which I personally think is a bit of a fool's errand and doomed to never be particularly useful to existing generic workloads. It would work if you very carefully redesign the workload to not take advantage of a GPU's typical high bandwidth and low latency, but if you have to do that then what's the point of trying to abstract over the device layer? Better to work at a higher level of abstraction where you can optimize for your particular application, rather than a lower level that you can't possibly implement well and then have to completely redo the higher levels anyway to work with it.
