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21 sats \ 2 replies \ @k00b 21h \ on: The messy reality of SIMD (vector) functions devs
I wish they explained or link to somewhere where I could learn what a compiler does when it vectorizes appropriately. I imagine it’s at least putting handling params in a way that takes advantage of cache locality, but are some compilers making use of gpus now? Or do cpus have some support for vectorization?
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100 sats \ 0 replies \ @carter OP 20h
My dad is in HPC and I remember him making fun of people who would buy expensive Intel chips and then not pay to use the Intel compilers. They are so much better than GNU c++ because they understood how to properly vectorize stuff for the cpu to have the best chance at being fast
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100 sats \ 0 replies \ @rblb 21h
Yes, all x86 64 cpus support at least SSE2
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