  The revival structures for the X_m exceptional orthogonal polynomials of the
Scarf I potential endowed with position-dependent effective mass is studied in
the context of the generalized Gazeau-Klauder coherent states. It is shown that
in the case of the constant mass, the deduced coherent states mimic full and
fractional revivals phenomena. However in the case of position-dependent
effective mass, although full revivals take place during their time evolution,
there is no fractional revivals as defined in the common sense. These
properties are illustrated numerically by means of some specific profile mass
functions, with and without singularities. We have also observed a close
connection between the coherence time {\tau}_coh^m? and the mass parameter ?.
