Re: [split] Compiler off-loading discussion
Posted: Tue Nov 29, 2016 9:42
Why are they weird? I get the same phenomenon with SSE2 vs. x87 on my system. Every test I made came back with x87 marginally faster than SSE2 when doing 32 bit floating point math, despite common wisdom saying the opposite and many people claiming I must be doing something wrong when x87 comes out faster. I believe a lot 'information' in this field is based on hearsay and unverified assumptions. AVX2 stilluses the same underlying hardware, so unless its instruction set is significantly better for the job at hand I'd consider it mostly window-dressing but not somthing that truly yields better results.