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embree-aarch64 reviews and mentions

Posts with mentions or reviews of embree-aarch64. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-09-12.

Emulating AMD Approximate Arithmetic Instructions on Intel
4 projects | news.ycombinator.com | 12 Sep 2021

Yikes.
A lot of code uses _mm_rsqrt_ps (sometimes) followed by a Newton-raphson update to compute a "precise" 1/sqrt(x). Here's a good example of NEON's rsqrt being sufficiently different from Intel, that more iterations were necessary for Embree on ARM [1].
Because I only cared about vectorization a long time ago, and AMD was so uncompetitive then, I'd bet a lot of code assumes that the SSE rsqrtps values match.
[1] https://github.com/lighttransport/embree-aarch64/issues/20