Episode 5.7 - Vectorization Tuning Knobs
Table of Contents:
00:13 - #pragma simd
00:25 - #pragma vector always
00:32 - #pragma vector aligned
00:46 - __assume_aligned
00:57 - #pragma vector nontemporal
01:10 - #pragma novector
01:15 - #pragma ivdep
01:16 - restrict qualifier
01:27 - #pragma loop count
01:42 - Compiler arguments:
01:50 - -qopt-report
02:06 - -O[n] optimization level
02:10 - -O2 - default optimization level
02:16 - -O3 - more aggressive optimizations
02:23 - -x[code] MMX, SSE, AVX or other SIMD instruction set
02:30 - -xhost