The ALCF’s Polaris system has officially been deployed for scientific research. Users can now apply for time through the ALCF’s Director’s Discretionary program (https://accounts.alcf.anl.gov/allocationRequests). For details on the system, see the Polaris user guide: https://www.alcf.anl.gov/support/user-guides/polaris/hardware-overview/machine-overview/index.html