This commit makes it so CUDA 11 is used to compile the compute_75
PTX CUDA kernels.
This is being done because PTX kernels have much stricter minimum
driver requirements than standard kernels, so using the latest CUDA
toolkit to compile PTX kernels can result in the PTX kernels being
inaccessible to users with drivers that are only a few months old.
This is important because in some situations, it's either impossible
(E.g. Renting certain cloud services), or difficult to update the GPU
drivers on some machines. And we want to make sure the PTX kernels
are usable by as many people as possible
Original Author: Sergey Sharybin <sergey@blender.org>
Pull Request: https://projects.blender.org/blender/blender/pulls/138879
0d6a79a8f3