[Discussion] cuda memory optimisation issues

Hey, I require some assistance in building a pipeline that includes `spleeter` audio splitting using the 2stems model.

GPU Spec - `Tesla V100-PCIE-16GB`

I wanted to know, how can we clear up the memory usage caused during the process.

```separator = Separator('spleeter:2stems')```

Is there any way to clear up the memory usage caused by this process so that it can be used later?

Start with the `Separator('spleeter:2stems')` pipeline and reproduce the GPU memory behavior on the stated Tesla V100-PCIE-16GB setup. Determine whether the issue is memory retained after processing or expected model allocation; done would require a documented, reproducible resolution, but this discussion names no files or tests.

Written by the indexing model from the issue text.