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  1. MariaDB Server
  2. MDEV-34804

mhnsw: compiler-independent choice of CPU-specific optimizations

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    • Task
    • Status: Open (View Workflow)
    • Major
    • Resolution: Unresolved
    • None
    • Vector search
    • None

    Description

      Currently mhnsw code has few AVX2 and AVX-512 optimized functions. It uses gcc-specific extensions to choose which one to run. Likely, it'll work with clang too. But not with Visual Studio. Not with musl. Not on arm or power.

      It'd be good to have this choice implemented in a compiler-independent way. Also, see mysys/crc32c.cc

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        Issue Links

          relates to

          Task - A task that needs to be done. MDEV-36184 mhnsw: support powerpc64 SIMD instructions

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-36995 vector: ifunc is not supported by musl (build 11.8.2 on Alpine Linux)

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Epic - Created by Jira Software - do not edit or delete. Issue type for a big user story that needs to be broken down. MDEV-32887 vector search

          • Critical - Crashes, loss of data, severe memory leak.
          • Stalled

          Task - A task that needs to be done. MDEV-34698 mhnsw: support AVX-512 instructions

          • Major - Major loss of function.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. MDEV-34699 mhnsw: support aarch64 SIMD instructions

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

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              serg Sergei Golubchik
              serg Sergei Golubchik
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              Dates

                Created:
                Updated:

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