array

C++ multidimensional arrays in the spirit of the STL (by dsharlet)

Array Alternatives

Similar projects and alternatives to array

NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better array alternative or higher similarity.

array reviews and mentions

Posts with mentions or reviews of array. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2024-04-27.
  • Einsum in 40 Lines of Python
    6 projects | news.ycombinator.com | 27 Apr 2024
    I wrote a library in C++ (I know, probably a non-starter for most reading this) that I think does most of what you want, as well as some other requests in this thread (generalized to more than just multiply-add): https://github.com/dsharlet/array?tab=readme-ov-file#einstei....

    A matrix multiply written with this looks like this:

        enum { i = 2, j = 0, k = 1 };
  • Benchmarking 20 programming languages on N-queens and matrix multiplication
    15 projects | news.ycombinator.com | 2 Jan 2024
    I should have mentioned somewhere, I disabled threading for OpenBLAS, so it is comparing one thread to one thread. Parallelism would be easy to add, but I tend to want the thread parallelism outside code like this anyways.

    As for the inner loop not being well optimized... the disassembly looks like the same basic thing as OpenBLAS. There's disassembly in the comments of that file to show what code it generates, I'd love to know what you think is lacking! The only difference between the one I linked and this is prefetching and outer loop ordering: https://github.com/dsharlet/array/blob/master/examples/linea...

  • A basic introduction to NumPy's einsum
    13 projects | news.ycombinator.com | 9 Apr 2022
    If you are looking for something like this in C++, here's my attempt at implementing it: https://github.com/dsharlet/array#einstein-reductions

    It doesn't do any automatic optimization of the loops like some of the projects linked in this thread, but, it provides all the tools needed for humans to express the code in a way that a good compiler can turn it into really good code.

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5 months ago

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