dump_beads
Write some data (positions and optionally velocities and forces) into beads_dump_<k>.xyz in extended XYZ format, where <k> runs from 0 to number_of_beads - 1 as set in a run related to path-integral molecular dynamics (PIMD). Each file thus contains the data for one bead. The comment line of each frame carries the time, the periodic boundary flags, and the cell.
Caveats
The centroid data (the average over all the beads) for the ring polymer in PIMD-related runs are still output by the dump_xyz keyword.
This keyword should not be used in a run not related to PIMD.