Checkout the code in kernels.c.
Remember to set the baseline CPEs on your machine in config.h, otherwise the speedup results are invalid.
Final results on a Intel(R) Xeon(R) Platinum 8260 CPU @ 2.40GHz:
$ ./driver -t
Rotate: Version = naive_rotate: Naive baseline implementation:
Dim 64 128 256 512 1024 Mean
Your CPEs 2.2 3.0 5.3 8.9 13.0
Baseline CPEs 2.2 3.0 5.4 8.9 12.7
Speedup 1.0 1.0 1.0 1.0 1.0 1.0
Rotate: Version = rotate: Current working version:
Dim 64 128 256 512 1024 Mean
Your CPEs 2.3 2.4 2.4 3.4 5.2
Baseline CPEs 2.2 3.0 5.4 8.9 12.7
Speedup 0.9 1.2 2.3 2.7 2.4 1.8
Smooth: Version = smooth: Current working version:
Dim 32 64 128 256 512 Mean
Your CPEs 13.2 13.3 13.5 13.5 13.7
Baseline CPEs 54.3 54.2 54.2 54.8 54.8
Speedup 4.1 4.1 4.0 4.1 4.0 4.1
Smooth: Version = naive_smooth: Naive baseline implementation:
Dim 32 64 128 256 512 Mean
Your CPEs 54.4 54.2 54.2 54.9 55.2
Baseline CPEs 54.3 54.2 54.2 54.8 54.8
Speedup 1.0 1.0 1.0 1.0 1.0 1.0
Summary of Your Best Scores:
Rotate: 1.8 (rotate: Current working version)
Smooth: 4.1 (smooth: Current working version)