BOSS-LDG: A Novel Computational Framework that Brings Together Blue Waters, Open Science Grid, Shifter and the LIGO Data Grid to Accelerate Gravitational Wave Discovery

摘要

We present a novel computational framework that connects Blue Waters, theNSF-supported, leadership-class supercomputer operated by NCSA, to the LaserInterferometer Gravitational-Wave Observatory (LIGO) Data Grid via Open ScienceGrid technology. To enable this computational infrastructure, we configured,for the first time, a LIGO Data Grid Tier-1 Center that can submitheterogeneous LIGO workflows using Open Science Grid facilities. In order toenable a seamless connection between the LIGO Data Grid and Blue Waters viaOpen Science Grid, we utilize Shifter to containerize LIGO's workflow software.This work represents the first time Open Science Grid, Shifter, and Blue Watersare unified to tackle a scientific problem and, in particular, it is the firsttime a framework of this nature is used in the context of large scalegravitational wave data analysis. This new framework has been used in the lastseveral weeks of LIGO's second discovery campaign to run the mostcomputationally demanding gravitational wave search workflows on Blue Waters,and accelerate discovery in the emergent field of gravitational waveastrophysics. We discuss the implications of this novel framework for a widerecosystem of Higher Performance Computing users.