1 March 2021 to 9 April 2021
Institut Henri Poincaré
Europe/Paris timezone

GPE: GPU-accelerated parameter estimation for gravitational waves with x360 acceleration

Not scheduled
Amphitheater Darboux (Institut Henri Poincaré)

Amphitheater Darboux

Institut Henri Poincaré

11, Rue Pierre et Marie Curie 75005 Paris


We present GPE, a GPU-accelerated parameter estimation package for gravitational waves from compact binary coalescence sources. This stand-alone program is adapted from the nested sampling flavor of LALInference. Two main parallelization methods are implemented: (1) the frequency-domain waveform and likelihood calculations, (2) and the prior sampling portion in the nested sampling algorithm. We show that GPE can produce consistent results compared to LALInference, while demonstrating up to x360 times speedup on one GPU compared to LALInference on one CPU. The high acceleration of GPE can facilitate the data-analysis of detected events, simulations for detector observing scenarios, and production of sky localization regions for EM follow-up.

Primary author

Ms Yun-Jing Huang (Academia Sinica, Taiwan)


Dr Sadakazu Haino (Academia Sinica, Taiwan)

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