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Tuesday, September 20 • 2:00pm - 3:00pm
Towards Heterogeneous Programming in C++

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Current semiconductor trends show a major shift in computer system architectures towards heterogeneous systems that combine a CPU with other processors such as GPUs, DSPs and FPGAs; that work together, performing different tasks in parallel. This shift has brought a dramatic change in programming paradigms in the pursuit of a common language that will provide efficiency and performance portability across these systems. A wide range of programming languages and models has emerged over the last decade, all with this goal in their sights, and the trend is converging on C++ as the language of choice.

This new world of heterogeneous systems brings with it many new challenges for the C++ community and for the language itself, and if these were to be overcome then C++ would have the potential to standardize the future of heterogeneous programming. In fact this work has already begun in SG14 in form of a mandate to support massive parallel dispatch for heterogeneous devices in the C++ standard using recent models such as SYCL and HPX. A recent approach to solving these challenges comes in the form of SYCL, a shared-source C++ programming model for OpenCL. SYCL takes a very different approach from many before it, in that it is specifically designed to be standard C++ without any extensions to the language.

This talk will present the recent rise in demand for heterogeneous programming in C++ and the new challenges that this brings to the C++ community. It will then take a look at some of the different programming languages and models that have arrived in the heterogeneous landscape, the motivations behind them, how they have attempted to solve those challenges and what we can learn from them. Finally it will take a look at the future of heterogeneous programming in C++ and what that might look like.

Speakers
avatar for Gordon Brown

Gordon Brown

Software Engineer, Codeplay Software
Gordon Brown is a software engineer specializing in SYCL technologies and has been involved in the standardization of the Khronos standard and the development of Codeplay's implementation from it's inception.
avatar for Michael Wong

Michael Wong

VP Research & Development, Codeplay Software
wongmichael.com/about


Tuesday September 20, 2016 2:00pm - 3:00pm
Kantner (Room 403) Meydenbauer Center

Attendees (76)