mdspan
papers
mdspan | papers | |
---|---|---|
6 | 85 | |
377 | 596 | |
2.9% | 2.5% | |
8.5 | 4.2 | |
3 days ago | 20 days ago | |
C++ | Perl | |
GNU General Public License v3.0 or later | - |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
mdspan
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July 2022 ISO C++ committee virtual meeting report
Why not use https://github.com/kokkos/mdspan though ?
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C++ for scientific programming?
It can be the base of whatever *you* write via bindings generators like pybind11. In that sense, the answer to your question is "however you like". For actual simulation code, you'll see a lot more legacy Fortran and C. That said, with things like mdspan maybe being standardized (proposal), efforts towards a standard linear algebra library, and the existence of ubiquitous HPC frameworks already having been written in C++, I would say it's only a matter of time before C++ accounts for an even bigger share of all HPC code.
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[D] Deep Learning Framework for C++.
I'm aware of only two relevant projects myself, I don't know much, came to reddit kind of by chance. One of the multi-dimensional array libraries proposed for potential standardisation, and a gnu machine learning library that was discontinued which could be worked off of. There's probably a lot more out there, but don't get distracted from making something awesome :)
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Array template implementation
As u/IyeOnline already made the important points about VLAs and std::vector, I would just add that you may find std::mdspan to be a helpful data structure. You can allocate 1d memory and give it a 2d shape of k with nice 2d indexing, eg auto& elem = mymdspan(row, col);.
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C++23: Near The Finish Line
Kokkos mdspan
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Is there an OOP-wrapper library for cublas?
The good thing here is that it heavily relies on mdpsan that is a multidimensional view that handle shape and strides. And kokkos provide a C++14 compatible implementation with a complete CUDA support.
papers
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Qt and C++ Trivial Relocation (Part 1)
It is slowly making its way through the standards committee. https://github.com/cplusplus/papers/issues/43
The author has a fork of clang and gcc with some pretty impressive speedups, so I’m hopeful! https://lists.isocpp.org/sg14/2024/04/1127.php
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Learn Modern C++
What's fun is, because everything is decided in papers, we can find out why! https://github.com/cplusplus/papers/issues/884
Accepted paper here: https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p20...
> The proposed std::print function improves usability, avoids allocating a temporary std::string object and calling operator<< which performs formatted I/O on text that is already formatted. The number of function calls is reduced to one which, together with std::vformat-like type erasure, results in much smaller binary code (see § 13 Binary code).
Additionally,
> Another problem is formatting of Unicode text:
> std::cout << "Привет, κόσμος!";
> If the source and execution encoding is UTF-8 this will produce the expected output on most GNU/Linux and macOS systems. Unfortunately on Windows it is almost guaranteed to produce mojibake despite the fact that the system is fully capable of printing Unicode
- The insanity of compile time programming
- P1673 A free function linear algebra interface based on the BLAS
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When will std::linalg make it into a new C++ release?
See https://github.com/cplusplus/papers/issues/557
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C++ Papercuts
Bringing editions to C++ failed, and I am not aware of anyone trying to tackle the issues https://github.com/cplusplus/papers/issues/631
(I could be wrong though! I follow the committee more than you may guess, but not as much as to think I know everything about what's going on.)
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Argonne National Lab is attempting to replicate LK-99
GitHub would not be relevant in this respect because:
* It's owned by a (single) commercial corporation, Microsoft.
* There is censorship both by content and in some respects by country of origin.
* The code is closed.
but otherwise it's an interesting idea.
The C++ standardization committee uses GitHub to track papers submitted to them, see:
https://github.com/cplusplus/papers
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C++23: The Next C++ Standard
There was no non-approval. The facility needs more work, and the authors (and the committee) were focusing on getting print/format done first. I hope that the paper will be worked on again in the future. We will be happy to review it once there is a revision (see github for history)
- What C++ library do you wish existed but hasn’t been created yet?
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2023-06 Varna ISO C++ Committee Trip Report — First Official C++26 meeting!
For more details on what we did at the 2023-06 Varna meeting, the [GitHub issue](https://github.com/cplusplus/papers/issues/328) associated with the paper has a summary.
What are some alternatives?
stdBLAS - Reference Implementation for stdBLAS
circle - The compiler is available for download. Get it!
kokkos - Kokkos C++ Performance Portability Programming Ecosystem: The Programming Model - Parallel Execution and Memory Abstraction
compiler-explorer - Run compilers interactively from your web browser and interact with the assembly
C++ Format - A modern formatting library
kokkos-kernels - Kokkos C++ Performance Portability Programming Ecosystem: Math Kernels - Provides BLAS, Sparse BLAS and Graph Kernels
LEWG - Project planning for the C++ Library Evolution Working Group
plf_hive - plf::hive is a fork of plf::colony to match the current C++ standards proposal.
CPM.cmake - 📦 CMake's missing package manager. A small CMake script for setup-free, cross-platform, reproducible dependency management.
deepdetect - Deep Learning API and Server in C++14 support for Caffe, PyTorch,TensorRT, Dlib, NCNN, Tensorflow, XGBoost and TSNE
tinyformat - Minimal, type safe printf replacement library for C++