Snapshot of vorticity magnitude contours of homogeneous magnetohydrodynamic (MHD) turbulence obtained from (a) direct numerical simulations (DNS) and large eddy simulations using (b) non-dynamic Smagorinsky (c) dynamic Smagorinsky (d) Leray-alpha (e) LANS-alpha and (f) Clark-alpha SGS models; Magnetic field is applied in the vertical direction and stretching of the flow field in the corresponding direction is evident.