AVX-512 Performance With 256-bit vs. 512-bit Data Path For AMD EPYC 9005 CPUs
Written by Michael Larabel in Processors on 11 October 2024 at 10:40 AM EDT. Page 3 of 7. 21 Comments.
👁 simdjson benchmark with settings of Throughput Test: LargeRandom. AVX-512 512b DP was the fastest.
With the simdjson JSON parsing library that is able to leverage AVX-512 there typically wasn't as significant gains from the 512-bit data path but for some of the sub-tests there were more pronounced gains.
Intel's Embree ray-tracing kernels saw very little difference between the FP256 vs. FP512 configurations.
Intel's OSPRay ray-tracing engine saw benefits from the default FP512 mode but not as significant as in some of the other AVX-512 benchmarks.