  The IceCube collaboration relies on GPU compute for many of its needs,
including ray tracing simulation and machine learning activities. GPUs are
however still a relatively scarce commodity in the scientific resource provider
community, so we expanded the available resource pool with GPUs provisioned
from the commercial Cloud providers. The provisioned resources were fully
integrated into the normal IceCube workload management system through the Open
Science Grid (OSG) infrastructure and used CloudBank for budget management. The
result was an approximate doubling of GPU wall hours used by IceCube over a
period of 2 weeks, adding over 3.1 fp32 EFLOP hours for a price tag of about
$58k. This paper describes the setup used and the operational experience.
