Multidimensional Arrays in C++
The C++ 2023 standard has std::mdspan which provides a light-weight non-owning multidimensional view of a contiguous single-dimensioned array. This enables the reinterpretation of an underlying contiguous array as a multi-dimensional array with support for different memory layouts (e.g., C and Fortran) and accessing elements (e.g., directly, using atomics, etc.). As found in other programming languages, subset views / "slices" are also possible. One does not need to use the latest compiler tools or C++ standard: one can use mdspan using a reference implementation that has been backported to C++17 and C++14 as well with NVIDIA's CUDA and NVHPC tools. This talk will discuss how to use mdspan in C++ programs.
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This webinar was presented by Paul Preney (SHARCNET) on September 25th, 2024, as a part of a series of weekly Compute Ontario Colloquia. The webinar was hosted by SHARCNET. The colloquia cover different advanced research computing (ARC) and high performance computing (HPC) topics, are approximately 45 minutes in length, and are delivered by experts in the relevant fields. Further details can be found on this web page: https://www.computeontario.ca/trainin... . Recordings, slides, and other materials can be found here: https://helpwiki.sharcnet.ca/wiki/Onl...
SHARCNET is a consortium of 19 Canadian academic institutions who share a network of high performance computers (http://www.sharcnet.ca). SHARCNET is a part of Compute Ontario (http://computeontario.ca/) and Digital Research Alliance of Canada (https://alliancecan.ca).
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