  We use a Modified DKLMT model (called M-DKLMT model) to study the cold
nuclear matter (CNM) effects on the color singlet J/psi production in dAu
collisions at RHIC. The cold nuclear effect of dipole-nucleus interactions has
been investigated by introducing a nuclear geometric effect function f({\xi})
to study the nuclear geometry distribution effect in relativistic heavy-ion
collisions. The dependencies of nuclear modification factors (RdA) on rapidity
and centrality are studied and compared to experimental data. It is found that
the M-DKLMT model can well describe the experimental results at both forward-
and mid-rapidity regions in dAu collisions at RHIC.
