In http://docs.nvidia.com/cuda/pdf/CUDA_C_Programming_Guide.pdf page 21 it says,
“Linear memory exists on the device in a 32-bit address space for devices of compute capability 1.x and 40-bit address space of devices of higher compute capability, so separately allocated entities can reference one another via pointers, for example, in a binary tree.”
What does it mean by
“separately allocated entities can reference one another via pointers” ?