Speaker
Description
In this presentation I will introduce the BLINK pipeline, now publicly available, a novel high time resolution imaging software for low-frequency Fast Radio Bursts (FRBs) searches within MWA VCS observations.
Detection of FRBs at low frequencies is computationally challenging due to the high time and frequency resolution requirements imposed by the nature of FRBs, coupled with the large dispersive delay, in the tens of seconds, affecting the signal. BLINK tackles these challenges by implementing imaging-based FRB searches that take full advantage of the computational power of the Setonix GPU partition, Pawsey’s latest supercomputer. Intermediate I/O operations between stages are eliminated, and all computation executes on GPU, supporting both AMD and NVIDIA hardware vendors.
In a test case, representative of what is required for FRB searches, the BLINK imaging pipeline achieves a 3687x speedup compared to a traditional MWA imaging pipeline employing WSClean. Finally, I will present the strategy to extend the pipeline to perform de-dispersion on the large quantity of images produced, and to run time series analysis for FRB detection.
