DescriptionThe IceCube Neutrino Observatory is responsible for providing the IceCube collaboration with Monte Carlo data including cosmic-ray shower simulations and simulation of the IceCube detector response. These simulations are used for studying the systematics of our detector and performance of future geometries. In addition, a large volume of background cosmic ray simulation is needed in order to optimize data analyses. A key component of simulating the IceCube detector is the correct modeling of the optical properties of the Antarctic ice which requires a lot of computation and has been adapted to run on GPUs. The IceProd framework is a software package developed for IceCube with the goal of managing productions across distributed systems and pooling together isolated computing resources that are scattered throughout the Collaboration. It consists of a central database hosted at University of Wisconsin-Madison and a set of daemons that are responsible for management of grid jobs as and data handling through the use of existing grid technology and network protocols. The IceCube Monte Carlo production is configured as a distributed workflow DAG that utilizes both CPU and GPU resources for various portions of the simulation chain. The intent is to utilize the Keeneland cluster in Georgia Tech to run GPU tasks and OSG for general CPU tasks through XSEDE. Intermediate files can be stored on a GridFTP server and are typically kept until the individual DAG completes. For a large production run, a typical storage requirement might be on the order of 5 TB. The IceCube collaboration would like to request an initial allocation of 100,000 SU’s. This allocation will be used to produce and reconstruct Monte Carlo simulations for the IC86 in-ice detectors as well as the IT81 surface detector.
OrganizationUniversity of Wisconsin-Madison
Sponsor Campus GridOSG-XSEDE
Principal Investigator
Francis Halzen
Field Of ScienceHigh Energy Physics