Node level heterogeneous architectures have become attractive during the last decade for
several reasons: compared to traditional symmetric CPUs, they offer high peak performance …

In the last few years, the landscape of parallel computing has been subject to profound and
highly dynamic changes. The paradigm shift towards multicore and manycore technologies …

This paper presents a novel work-distribution strategy for GPUs, that efficiently convolves
radio-telescope data onto a grid, one of the most time-consuming processing steps to create …

Clusters of GPUs have rapidly emerged as the means for achieving extreme-scale, cost-
effective, and powerefficient high performance computing. At the same time, high level APIs …

We present a case study parallelizing streaming aggregation on three different parallel
hardware architectures. Aggregation is a performance-critical operation for data …

The Square Kilometre Array (SKA) will be the most sensitive radio telescope in the world.
This unprecedented sensitivity will be achieved by combining and analyzing signals from …

Subjective quality perception studies with human observers are essential for multimedia
system design. Such studies are known to be expensive and difficult to administer. They …

Backward and forward interpolations on a Fourier grid are computationally expensive
operations for radio interferometric imaging algorithms. By merging these operations, we …

Abstract w-Projection is a wide-field imaging technique that is widely used in radio synthesis
arrays. Processing the wide-field big data generated by the future Square Kilometre Array …

Abstract The Square Kilometre Array (SKA) will be the most sensitive radio telescope in the
world. This unprecedented sensitivity will be achieved by combining and analyzing signals …