This project treats the evolution of molecular clouds (size of 100-200 pc) under self-gravity and MHD turbulence (see Ntormousi & Hennebelle, A&A, 2019 for a complete description). The elongated cloud has an initial mass of about 10^5 Ms. A turbulent field is initially set within the cloud. The adaptive mesh refinement scheme is employed to resolve scales up to about 100 AU. When a density of about 10^8 cm^-3 is reached, a sink particle is introduced. No stellar feedback is treated here and the turbulence is free to decay.