  We consider dual-primal isogeometric tearing and interconnection (IETI-DP)
solvers for multi-patch geometries in Isogeometric Analysis. Recently, the
authors have published a convergence analysis for those solvers that is
explicit in both the grid size and the spline degree for conforming
discretizations of two dimensional computational domains. In the present paper,
we shortly revisit these results and provide numerical experiments that
indicate that similar results may hold for three dimensional domains.
