Choosing a SIMD Width
Match width to your hardware lanes.
Width Decides Throughput
The SIMD width is how many lanes you process per instruction. Picking it well is key to real performance.
Hardware Has Fixed Lanes
Your CPU has vector registers of a fixed size. A good SIMD width matches the lanes that hardware can run at once.
All lessons in this course
- Meet the SIMD Type
- Element-Wise SIMD Math
- Choosing a SIMD Width
- Vectorizing a Loop