In this work, we discuss measures to increase the scalability, robustness, and efficiency of the Combination Technique. In particular, we introduce an asynchronous variant and improve its fault-tolerant implementation. These concepts are then tested with applications from plasma physics. Additionally, we introduce two novel ways for generalizing the Combination Technique to allow for spatial adaptivity. These methods preserve the most important features of the method: the black-box property, their parallel nature, and the error cancellation. Our numerical results indicate that the new methods can help to tailor the grids towards the application scenarios, thereby reducing the number of needed grid points.
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In this work, we discuss measures to increase the scalability, robustness, and efficiency of the Combination Technique. In particular, we introduce an asynchronous variant and improve its fault-tolerant implementation. These concepts are then tested with applications from plasma physics. Additionally, we introduce two novel ways for generalizing the Combination Technique to allow for spatial adaptivity. These methods preserve the most important features of the method: the black-box property, the...
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