CODEWITHSUNDEEP
cudaffmpeggpuvideo-processing
0nand0n
0nand0n

Reputation: 33

multiple processes of video processing to GPU cores

Can we assign a number of processes (i.e. 100-500 processes) to GPU, each process running on a GPU core? In my application of video processing, I have to use ffmpeg library to proceed video and audio. If there are like more than 100 or even 500 such independent processes, I guess it's faster to assign each process to a GPU. However, I don't know if we can do it, and to do it, what libraries, tools are necessary? CUDA?

Upvotes: 0

Views: 315

Answers (1)

Robert Crovella
Robert Crovella

Reputation: 152279

Can we assign a number of processes (i.e. 100-500 processes) to GPU, each process running on a GPU core?

No, you can't. In general it's not possible to schedule anything on a GPU core per se. This level of "scheduling" is handled mainly by the mechanics of the CUDA architecture and runtime system.

The basic idea is to expose parallelism at a fairly low level in your code (e.g. at the loop level) and with proper use of a GPU acceleration syntax (such as CUDA, OpenACC, OpenCL, etc.) the GPU can often make such elements of your program run faster.

But the GPU is not designed to be a drop-in replacement for CPU cores. There is the scheduling factor that I mentioned already, as well as the fact that codes generally need to be compiled for the GPU specifically.

Upvotes: 2

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