[A100] cuCompressibleMemory not work

[vimchai]

When I run the sample(cudaCompressibleMemory, my env: cuda 11.2 ),
I found the result: L2 Compression Ratio = 0%.
This is abnormal, but I counld not find the reason. Are there some special configuration?

I also found the same questions in the forums, but nobody reply them. https://forums.developer.nvidia.com/t/compute-data-compression-in-ampere-a100/160474 https://forums.developer.nvidia.com/t/ncu-profiling-l2-cache-compression-rate/165546 @mdoijade

[blueskyltx]

This bug still exists

[sazczmh]

This bug still exists on 11.8-470