I played a little bit with gpgpu on the raspberry pi. I’d imagine it’s relativly primitive compared to whatever shaders are compiled to on modern GPUs, but it

I played a little bit with gpgpu on the raspberry pi. I’d imagine it’s relativly primitive compared to whatever shaders are compiled to on modern GPUs, but it was humbling to have to manage things like separate, per core, disjoint register files which can only be read 4 cycles after write. The cores are heterogeneous, so there is special hardware for exchanging register reads between cores if necessary.