  The IceCube Neutrino Observatory is a cubic kilometer neutrino telescope
located at the geographic South Pole. Understanding detector systematic effects
is a continuous process. This requires the Monte Carlo simulation to be updated
periodically to quantify potential changes and improvements in science results
with more detailed modeling of the systematic effects. IceCube's largest
systematic effect comes from the optical properties of the ice the detector is
embedded in. Over the last few years there have been considerable improvements
in the understanding of the ice, which require a significant processing
campaign to update the simulation. IceCube normally stores the results in a
central storage system at the University of Wisconsin-Madison, but it ran out
of disk space in 2022. The Prototype National Research Platform (PNRP) project
thus offered to provide both GPU compute and storage capacity to IceCube in
support of this activity. The storage access was provided via XRootD-based OSDF
Origins, a first for IceCube computing. We report on the overall experience
using PNRP resources, with both successes and pain points.
