We present a gridified stellar energy flux modelling software SYNTSPEC for stellar
spectra analysis. It is an example of data- and compute-intensive application running on
the testbed of the Enabling Grids for E-sciencE (EGEE) Grid compatible infrastructure,
which brings the new quality to the research in astrophysics. The multi job application is
running within the GRIDCOM system – a user friendly interface that allows a virtual work
of a physically spread scientific group. The SYNTSPEC software calculates stellar energy
fluxes and normalized to the continuum spectra that are applied for stellar classification
and determination of chemical compositions, effective temperatures, surface gravities and
other parameters of stars. The SYNTSPEC application benefits from usage of large computing
resources, which makes possible calculations of synthetic stellar spectra for significant
wavelength ranges and numbers of stellar parameter combinations. The specific energy flux
modelling will be used for the analysis of data, which will be produced by the European
Space Agency‘s Gaia space observatory.