'What does the __grid_constant__ parameter qualifier do?
Several weeks ago, NVIDIA's Stephen Jones gave a GTC talk named "CUDA: New features and beyond", in which he presented an upcoming feature of CUDA in v11.7: A qualifier/decorator for kernel parameters named __grid_constant__. I didn't understand the explanation about what that's supposed to mean.
Specifically, how does a __grid_constant__ int x differ from a int x ? Aren't they both just read by threads from constant memory?
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