CppCon 2014 Overview of Parallel Programming in C++—Pablo Halpern

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While we wait for CppCon 2015 in September, we’re featuring videos of some of the 100+ talks from CppCon 2014. Here is today’s feature:

Overview of Parallel Programming in C++


by Pablo Halpern

(watch on YouTube) (watch on Channel 9)

Summary of the talk:

Parallel programming was once considered to be the exclusive realm of weather forecasters and particle physicists working on multi-million dollar super computers while the rest us relied on chip manufacturers to crank out faster CPUs every year. That era has come to an end. Clock speedups have been largely replaced by having more CPUs on a chip. Your typical smart phone now has 2 to 4 cores and your typical laptop or tablet has 4 to 8 cores. Servers have dozens of cores and supercomputers have thousands of cores.

If you want to speed up a computation on modern hardware, you need to take advantage of the multiple cores available. This talk is provides an overview of the parallelism landscape. We'll explore the what, why, and how of parallel programming, discuss the distinction between parallelism and concurrency and how they overlap, and learn about the problems that one runs into. We'll conclude with an overview of existing parallelism technologies in C++ and the future directions being considered for parallel programming in standard C++.

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