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| Name | std::simd: How to Express Inherent Parallelism Efficiently Via Data-parallel Types - Matthias Kretz |
| Video Uploader | Video From CppCon |
| Upload Date | This Video Uploaded At 12-12-2023 10:29:08 |
| Video Discription | https://cppcon.org/ --- std::simd: How to Express Inherent Parallelism Efficiently Via Data-parallel Types - Matthias Kretz https://github.com/CppCon/CppCon2023 C++26 is on route to ship `std::simd`, a facility for expressing data-parallelism via the type system, based on experience from `std::experimental::simd` (Parallelism TS v2). Data-parallel types have the potential to replace many uses of built-in arithmetic types with their `simd` counterpart in compute-intensive workloads, promising factors of speed-ups without algorithmic changes. This talk presents how data-parallel types are designed to be more than just a thin wrapper around SIMD registers and instructions. They are designed to facilitate generic code, work/integrate with standard algorithms, etc, all while translating into efficient use of parallel execution capabilities. More important, data-parallel types are not "just another way to express data-parallel execution", they also provide new ways to design data structures for efficient memory access (high-throughput without sacrificing locality) using data-structure vectorization. The talk features examples of efficient use of `std::simd`. --- Matthias Kretz Matthias Kretz began programming with C++ as a high-school student, when he joined the development of the KDE 2 Desktop in its Alpha stages. He worked on GUI applications, the KDE core libraries, and developed the multimedia subsystem of the KDE Plasma Desktop (4.0), which became the first external contribution to Qt. At the same time he finished his studies in Physics in Heidelberg, Germany. For his thesis he worked on porting parts of the online-reconstruction software for the ALICE experiment at CERN to the Intel Larrabee GPU. This motivated his work on SIMD and Vc, an abstraction for expressing data-parallelism via the type system. Vc was the first solution of this kind released as free software. His PhD in computer science at the University of Frankfurt was a continuation of his SIMD work, developing higher level abstractions and vectorization of challenging problems. Matthias has been contributing his SIMD work and his expertise in HPC and scientific computing in the C++ committee since 2013. Since 2022 he is chair of SG6 Numerics of the C++ committee. He is also a contributor to GCC and has founded and chaired C++ User Groups at Frankfurt Institute for Advanced Studies and at GSI Helmholtz Center for Heavy Ion Research. __ Videos Filmed & Edited by Bash Films: http://www.BashFilms.com YouTube Channel Managed by Digital Medium Ltd: https://events.digital-medium.co.uk --- Registration for CppCon: https://cppcon.org/registration/ #cppcon #cppprogramming #cpp |
| Category | Science & Technology |
| Tags | std::simd | simd | Parallelism | Inherent Parallelism | xpress Inherent Parallelism | How to Express Inherent Parallelism | How to Express Inherent Parallelism Efficiently | Data-parallel Types | Matthias Kretz | SIMD | data-parallelism | ILP | HPC | data-parallel types | instruction-level parallelism | C++26 | high performance computing c++ | high throughput computing c++ | parallelism c++ | cpp simd | c++ | cpp | cppcon | cpp con | cppcon 2023 | in cpp | in c++ | cppcon youtube | 2023 | talks | c plus plus | code | con |
