28 - Programming Techniques for Supercomputers/ClipID:34386 previous clip next clip

Recording date 2021-06-15

Language

English

Organisational Unit

Friedrich-Alexander-Universität Erlangen-Nürnberg

Producer

Friedrich-Alexander-Universität Erlangen-Nürnberg

In this lecture we continue the discussion of performance modelling and optimization for simple stencil schemes. We discuss the impact of different parallelization strategies on the Layer Condition and the related code balances. Finally we discuss a wavefront parallelization approach  for a Gauss-Seidel type stencil update scheme ressolving the method's intrinsic data dependencies.

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