Monday, June 11, 2012

Lumps 'n' Bumps: Parallelisation with OpenMP

At this morning's Code Coffee, Rich Booth gave us an introduction to using;OpenMP;to parallelise our code. It turns out to be surprisingly easy – all you need to do is add a specially-formed comment here and and there, and OpenMP will do the rest. At its most basic, OpenMP just takes a serial code (code meant to be run on a single processor), and splits the work between multiple threads, which can be run on multiple processors. This (hopefully) speeds up code execution by sharing the load.

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