2.7k citations · 3k across the 8 of their papers we have counts for
8 papers
Enhancing SLMs for Sustainable Code Optimization in Radio-Astronomy
Elisa Chiarotto, Jingbo Li, P. Chris Broekema +1
Recent Large Language Models (LLMs) can produce and optimize complex code. We investigate the use of LLMs to generate and optimize code for large-scale sciences, focusing on radio…
Job-level Carbon and Water Footprint Estimation for HPC: Bias Assessment from Runtime to Full Life Cycle
Xi Chen, Chris Broekema, Rob van Nieuwpoort
High performance computing evaluation has traditionally focused on performance and energy, but these metrics alone cannot capture the sustainability cost of runtime configurations.…
SuperCode: Sustainability PER AI-driven CO-DEsign
P. Chris Broekema, Rob V. van Nieuwpoort
Currently, data-intensive scientific applications require vast amounts of compute resources to deliver world-leading science. The climate emergency has made it clear that unlimited…
On optimising cost and value in compute systems for radio astronomy
P. Chris Broekema, Verity L. Allan, Rob V. van Nieuwpoort +1
Large-scale science instruments, such as the distributed radio telescope LOFAR, show that we are in an era of data-intensive scientific discovery. Such instruments rely critically…
Cobalt: A GPU-based correlator and beamformer for LOFAR
P. Chris Broekema, J. Jan David Mol, Ronald Nijboer +5
For low-frequency radio astronomy, software correlation and beamforming on general purpose hardware is a viable alternative to custom designed hardware. LOFAR, a new-generation rad…
Energy-Efficient Data Transfers in Radio Astronomy with Software UDP RDMA
Przemyslaw Lenkiewicz, P. Chris Broekema, Bernard Metzler
Modern radio astronomy relies on very large amounts of data that need to be transferred between various parts of astronomical instruments, over distances that are often in the rang…
LOFAR: The LOw-Frequency ARray
M. P. van Haarlem, M. W. Wise, A. W. Gunst +197
LOFAR, the LOw-Frequency ARray, is a new-generation radio interferometer constructed in the north of the Netherlands and across europe. Utilizing a novel phased-array design, LOFAR…
Observing pulsars and fast transients with LOFAR
B. W. Stappers, J. W. T. Hessels, A. Alexov +91
Low frequency radio waves, while challenging to observe, are a rich source of information about pulsars. The LOw Frequency ARray (LOFAR) is a new radio interferometer operating in…