AVX-512 Performance Comparison: AMD Genoa vs. Intel Sapphire Rapids & Ice Lake Review

• rapidyenc

  1 4 7.3 C++

  SIMD accelerated yEnc en/decode C library

yEnc encoding/decoding (used in Usenet binary transfers): performance is upwards of 6GB/s on one core of a modern CPU. Even if we assume a GPU has infinite performance, just the transfer to+from over a PCI-e link likely isn't much faster. yEnc also operates on bytes (which GPUs suck at relative to CPUs) and involves a fair bit of conditional data shuffling

• ParPar

  7 185 9.1 C

  High performance PAR2 create client for NodeJS

PAR2 creation (file-based error correction): the core routine here is GF(2^16) matrix multiplication. AVX512 has the GF2P8AFFINEQB instruction, which isn't present on any GPU that I know of, but massively accelerates GF multiplication. Without this instruction, you have to resort to emulating it via bitwise operations or lookup tables, which are much slower. I actually have an OpenCL implementation, but its performance is rather meh compared to CPU

• InfluxDB

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