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C++ Standard Parallelism - Bryce Adelstein Lelbach - CppCon 2021

English --- Imagine writing parallel code that can run on any platform - CPUs, GPUs, DPUs, specialized accelerators, etc. It's no longer just a dream - you can do it in Standard C++!
Parallelism is increasingly common in software, from supercomputer simulations to mobile applications. But writing parallel code is increasingly challenging, due to an explosion of diversity in hardware, a trend that's likely to continue into the future. To meet this challenge, the Standard C++ Committee has developed a roadmap for C++ Standard Parallelism, a parallel programming model that will be portable to all platforms while delivering reasonable performance and efficiency for most use cases.
Our vision of C++ Standard Parallelism consists of three key components:
* Common parallel algorithms that dispatch to vendor-optimized parallel libraries * Tools to write your own parallel algorithms that run anywhere. * Mechanisms for composing parallel invocations of algorithms into task graphs.
In this talk, we'll dive into this roadmap - we'll discuss what we already have that you can use today, what's coming down the line, and where the future may lead us.
--- Bryce Lelbach
Bryce Adelstein Lelbach has spent over a decade developing software libraries and programming languages. He is the HPC Programming Models Architect at NVIDIA, where he leads programming language standardization efforts and drives the technical roadmap for NVIDIA's HPC compilers and libraries. Bryce is passionate about C++ and is one of the leaders of the C++ community. He is the chair of INCITS/PL22, the US standards committee for programming languages and the Standard C++ Library Evolution group. Bryce is the program chair for the C++Now and CppCon conferences, and the chief organizer of the Bay Area C++ User Group. On the C++ Committee, he has personally worked on the C++17 parallel algorithms, executors, futures, senders/receivers, multidimensional arrays, and modules. He is one of the initial developers of the HPX parallel runtime system. He also helped start the LLVMLinux initiative and has occasionally contributed to the Boost C++ libraries.
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