Abstract: To perform the calculations in domains of complex shapes by RMGD code MARPLE 3D we use the CAD-CAE platform SALOME. SALOME differs from typical CAD-systems in support of a variety of tools for marking of the elements of various dimensions both at the geometry and mesh levels. SALOME can also be used as a platform for integration of the external third-party software. SALOME is primarily aimed at preparation of a computational domain for the numerical simulation and analysis of numerical results. This circumstance was the impetus for the creation of a data converter which is used as a preprocessing tool providing import of data from SALOME into the application software package MARPLE3D. In this paper we discuss the experie...