point to point

Geometric decomposition with the Epiphany

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In the previous tutorial (here) we concentrated on different ways to pass messages between cores which is one of the core mechanisms of parallelism. We saw that messages can be point to point, where only two cores are involved, or collective where every core is involved. The forms of communication that you select depends upon the problem you are trying…

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Parallel messaging with the Epiphany

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This is the first of a number of tutorials where we are going to explore the parallel capabilities of the Epiphany and develop some parallel codes which illustrate the techniques used by HPC programmers to write large scale parallel codes on modern supercomputers. In this post we will concentrate on the mechanisms of parallelism, and one fundamental activity is the…

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