Another attempt to solve 32bit CUDA kernel
Another attempt to solve 32bit CUDA kernel

Previous fix didn't quite work well. For some reason everything worked fine when
using native nvcc in 32bit environment, but cross-compiling from 64bit platform
it was still running out of memory.

For now just made it so all the kernels are slower on 32bit CUDA as a temporary
solution. Either it'll be solved in next CUDA releases (by dropped 32bit? =\) or
we'll find better workaround.

tangent-opensource/coreBlackbird,tangent-opensource/coreBlackbird,tangent-opensource/coreBlackbird