Optimize inner loop with SIMD instructions#1
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bccbrendan wants to merge 5 commits intoarm-education:mainfrom
Open
Optimize inner loop with SIMD instructions#1bccbrendan wants to merge 5 commits intoarm-education:mainfrom
bccbrendan wants to merge 5 commits intoarm-education:mainfrom
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This is meant as an additional branch to showcase performance optimization from Arm Neon SIMD instructions.
On my Arm laptop I see a speedup when running
time ./builds/mandelbrot-parallel 1(single-threaded)from ~19s to ~4.9 seconds, which is roughly a 4x speedup I would expect from running 4 floating point operations at a time.
When running with 8 parallel threads, the SIMD speedup goes from 2.9s to 0.78s.