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GCC 9 libstdc++ Lands The C++17 Parallel Algorithms Implementation From Intel

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  • GCC 9 libstdc++ Lands The C++17 Parallel Algorithms Implementation From Intel

    Phoronix: GCC 9 libstdc++ Lands The C++17 Parallel Algorithms Implementation From Intel

    While the release of GCC 9 (v9.1) is just a few weeks ago, a late addition to this annual compiler collection update is its C++ standard library now having a C++17 parallel algorithms implementation thanks to Intel developers...

    http://www.phoronix.com/scan.php?pag...lel-Algorithms

  • #2
    Are they also aiming to add this to llvm libc++?

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    • #3
      Originally posted by staalmannen View Post
      Are they also aiming to add this to llvm libc++?
      Michael's last link contains this:
      This is the Intel implementation of the C++17 parallel
      algorithms, which has been donated to both GCC and LLVM. The upstream
      project is at -

      https://reviews.llvm.org/source/pstl/
      So I guess the answer to your question is yes

      And in fact when looking with the project name, Michael already published this: https://www.phoronix.com/scan.php?pa...lel-STL-Commit

      Comment


      • #4
        PSTL is disabled by default in both LLVM and GCC since it requires TBB (which is not part of the compilers).

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        • #5
          If it requires tbb, that kind of sucks.

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          • #6
            Originally posted by babali View Post
            If it requires tbb, that kind of sucks.
            I see that now TBB is open source:

            https://github.com/01org/tbb


            Therefore I do not think that there is any reason for PSTL to suck.

            Moreover, looking at the source of TBB, I see that TBB not only supports Intel processors, but also IBM POWER processors and it appears that it would be easy to port it to other architectures, e.g. ARM.



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            • #7
              > While the release of GCC 9 (v9.1) is just a few weeks ago

              Away?

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              • #8
                Originally posted by babali View Post
                If it requires tbb, that kind of sucks.
                TBB is great, it worked very well for me so far. PSTL supports several backends, and ships with a TBB backend. So other backends are not that hard to add. OpenMP might be sensible as it also ships with the compiler.

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