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I have a QGIS application running on Linux and I added a heavy vector layer. Every user operation like zooming or panning, takes almost one minute. I installed NVIDIA graphics card but it didn't improve the performance at all. When I run the command nvidia-smi, I notice that my application doesn't appears on the running list.

Is it possible to enforce QGIS to run on the GPU and if yes how can I do it?

closed as too broad by Spacedman, Vince, HDunn, xunilk, ramiroaznar Aug 17 at 18:41

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • This might be of use: github.com/aFuerst/PyCUDA-Raster – TomazicM Aug 14 at 18:16
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    Programs have to be specially written to run on GPUs. This is a specialised task and QGIS isn't done that way. What is a "user operation" in your terminology? That might not even be computable efficiently on a GPU. – Spacedman Aug 14 at 18:21
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    I would recommend to take a step back and allow yourself to think of other solutions than the GPU as well. If this this is of interest for you, share some information about the data source of the vector layer and define "user operations". – Matthias Kuhn Aug 14 at 18:21
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    @Spacedman somehow. Yes, they have to be written especially. But QGIS is partially written that way (itopen.it/opencl-acceleration-now-available-in-qgis) and yes, probably the question here does not fall into the category that benefits from the previous link. – Matthias Kuhn Aug 14 at 18:23

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