  Heavy quark and charmonium production as well as their space-time evolution
are studied in transport simulations of heavy-ion collisions at RHIC and LHC.
In the partonic transport model Boltzmann Approach of MultiParton Scatterings
(BAMPS) heavy quarks can be produced in initial hard parton scatterings or
during the evolution of the quark-gluon plasma. Subsequently, they interact
with the medium via binary scatterings with a running coupling and a more
precise Debye screening which is derived from hard thermal loop calculations,
participate in the flow and lose energy. We present results of the elliptic
flow and nuclear modification factor of heavy quarks and compare them to
available data. Furthermore, preliminary results on J/psi suppression at
forward and mid-rapidity are reported for central and non-central collisions at
RHIC. For this, we study cold nuclear matter effects and the dissociation as
well as regeneration of J/psi in the quark-gluon plasma.
