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- David Böhme, Markus Geimer, Lukas Arnold, Felix Voigtländer, Felix Wolf
- 2010 39th International Conference on Parallel…
- 2010

Driven by growing application requirements and accelerated by current trends in microprocessor design, the number of processor cores on modern supercomputers is increasing from generation to generation. However, load or communication imbalance prevents many codes from taking advantage of the available parallelism, as delays of single processes may spread… (More)

- Judit Giménez, Jesús Labarta, +6 authors Bernd Mohr
- Euro-Par Workshops
- 2010

- Thomas William, Hartmut Mix, Bernd Mohr, René Menzel, Felix Voigtländer
- PARCO
- 2009

Programming and optimising large parallel applications for multi-core systems is an ambitious and time consuming challenge. Therefore, a number of software tools have been developed in the past to assist the programmer in optimising their codes. Scalasca and Vampir are two of these performance-analysis tools that are already well established and recognised… (More)

- Sebastian Flott, Felix Voigtländer, Bernd Mohr, Felix Wolf
- 2008

The performance of parallel applications is often affected by wait states occurring when processes fail to reach synchronization points simultaneously. In the kojak project, we have shown that these wait states and other performance properties can be diagnosed by searching event traces for characteristic patterns and quantifying their severity, i.e., their… (More)

- Philipp Petersen, Felix Voigtländer
- ArXiv
- 2017

We study the necessary and sufficient complexity of ReLU neural networks—in terms of depth and number of weights—which is required for approximating classifier functions in an L-sense. As a model class, we consider the set E(R) of possibly discontinuous piecewise C functions f : [−1/2, 1/2] → R, where the different “smooth regions” of f are separated by C… (More)

- Jonathan Fell, Hartmut Fuhr, Felix Voigtlaender
- 2015 International Conference on Sampling Theory…
- 2015

On the real line, it is well-known that (the decay of) the one-dimensional continuous wavelet transform can be used to characterize the regularity of a function or distribution, e.g. in the sense of Holder regularity, but also in the sense of characterizing the wave front set. In higher dimensions - especially in dimension two - this ability to resolve the… (More)

- Felix Voigtlaender
- 2017 International Conference on Sampling Theory…
- 2017

We present the recent theory of structured Banach frame decompositions for decomposition spaces, which helps understand the sparsity properties of a wealth of different types of frames, in particular of Gabor, wavelet and shearlet frames.

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