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| Paper: |
GPU Acceleration of the SAGECal Calibration Package for the SKA |
| Volume: |
527, Astronomical Data Analysis Software and Systems XXIX |
| Page: |
747 |
| Authors: |
Spreeuw, H.; van Werkhoven, B.; Yatawatta, S.; Diblen, F. |
| Abstract: |
SAGECal has been designed to find the most accurate calibration solutions for low radio frequency imaging observations, with minimum
artefacts due to incomplete sky models. SAGECAL is developed to handle extremely large data sets, e.g., when the number of frequency bands greatly
exceeds the number of available nodes on a compute cluster. Accurate calibration solutions are derived at the expense of large computational loads, which
require distributed computing and modern compute devices, such as GPUs, to decrease run times. In this work, we investigate if the GPU
version of SAGECal scales well enough to meet the requirements for the Square Kilometre Array and we compare its performance with the CPU version. |
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