An implementer's view of Boost.SIMD
summary
An implementer-level report on Boost.SIMD shows a workable C++11/14 library: a pack<T,N> abstraction, segmented range slicing for prologue/body/epilogue, and augmented tag-dispatching to pick SSE/AVX/NEON implementations at compile time (with optional runtime kernel dispatch). Benchmarks show concrete wins: Mandelbrot-style kernels run ~3.2× faster on SSE4 and approach ~6× on AVX-family, and image/motion code sees multi-fold speedups (3–7×, higher on wider ISAs). The library compiles to efficient intrinsics and is available with docs and examples.
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chapters (20)
- 0:00Intro
- 0:51Who cares about performance
- 2:01Processing workload
- 5:22The problem
- 7:34How to take advantage
- 11:52Background
- 12:15BoostSIMD
- 19:26Basic operators
- 20:01Function selection
- 20:38Shuffle
- 29:38Compile Time
- 34:45Implementation
- 38:31Elementwise functions
- 42:26Absolute value implementation
- 45:08Software optimization
- 48:19Broadcast
- 51:34Basic function
- 55:44Actual application
- 56:35Masks
- 58:18Vectorization
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