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ampere_persistent_cache_eval's Introduction

Ampere Persistent Cache Evaluation

Here is an unofficial Ampere persistent L2 cache evaluation

https://developer.download.nvidia.com/video/gputechconf/gtc/2020/presentations/s21819-optimizing-applications-for-nvidia-ampere-gpu-architecture.pdf

Compile and Run

nvcc -std=c++11 main.cu -arch=sm_80 && ./a.out

Results

Warning: All tests have not locked core frequency and memory frequency.

Baseline

Freq Size (MByte) Persistant Cache Size (MByte) Time (ms)
10 0 40.101921
20 0 54.422207
30 0 66.159889
40 0 76.17881
50 0 81.65992
60 0 85.687294

Enable Persistant Cache

Freq Size (MByte) Persistant Cache Size (MByte) Time (ms) Acceleration Ratio
10 10 32.310387 1.241146415
20 20 41.663773 1.306223683
30 30 49.951725 1.324476562
40 30 60.225136 1.264900589
50 30 68.075066 1.199556971
60 30 73.440689 1.16675504

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