Less GPU-Memory of FGRPopencl-Beta-nvidia) x86_64-pc-linux-gnu would be nice

When I look at nvidia-smi (on Linux) I see, that the application uses 773 MiB. Which is a little bit too much on my 2GB-Card to run two applications at the same time since X-Windows needs additional memory.
So reducing the memory usage on the GPU would allow me to run two applications in parallel and thus crunching a little bit more.

Thanks!