» Tag
vectorization
2 postsStream Compaction on NEON: Hand-Vectorizing copy_if
NEON lacks a compress instruction, so compilers can't vectorize copy_if. This piece shows how tbl-based lookup tables restore SIMD throughput with a 30x speedup.
Performance Impact of Memory Access Alignment in SIMD
Exploring how memory access alignment impacts performance in SIMD vectorization.
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