com/griswaldbrooks/spanny2github.com/griswaldbrooks/spanny2 DISCLAIMER: C++23… ish 2 https://github.com/kokkos/mdspangithub.com/griswaldbrooks/spanny2 goals ● deeper understanding of std::mdspan layouts and access(data_handle_type p, size_t i) const noexcept { return p[i]; } }; 80 https://github.com/kokkos/mdspan/blob/stable/include/experimental/__p0009_bits/default_accessor.hppgithub.com/griswaldbrooks/spanny2 access(data_handle_type p, size_t i) const noexcept { return p[i]; } }; 81 https://github.com/kokkos/mdspan/blob/stable/include/experimental/__p0009_bits/default_accessor.hpp matches

strategies: C-style programming with OpenMP, native mechanisms in modern C++, as well as through Kokkos and Sycl. Discussion An important corner of scientific computing is concerned with sparse matrices two extensions to a pure C++ approach, both strongly based on the use of lambda expressions. (4) Kokkos is a C++ library that facilitates our type of data parallelism. It originated as an execution layer

Liber nliber@anl.gov ● Advanced Leadership Computing Facility (ALCF) ○ Computer Scientist ○ Kokkos (SYCL/DPC++ backend) ○ Vice Chair WG21 Library Evolution Working Group Incubator (LEWGI / SG18) for target Simulation HPC Languages Solver Libraries, Parallel RT C++ Application uses SYCL, Kokkos, Raja SYCL in HPC/Supercomputers CUDA/pthreads/ OpenACC/OpenCL OpenMP for C and Fortran Need

Proposal P1673: https://wg21.link/p1673 • Reference implementation of P1673: https://github.com/kokkos/stdBLAS • Mark Hoemann: “std::linalg: Linear Algebra Coming to Standard C++”, CppCon 2023 • Video:

Argonne National Laboratory ▪ Computer Scientist ▪ Argonne Leadership Computing Facility ▪ C++, SYCL, Kokkos ▪ Aurora ▪ WG21 - ISO C++ Committee ▪ Vice Chair, Library Evolution Working Group Incubator (LEWGI

Over 50 years of history & practice • std::linalg implementations • Reference: https://github.com/kokkos/stdBLAS • NVIDIA’s: in the HPC SDK (free download) • To learn more: • C++ Standard Library proposal