Frequency-domain forward is the basis of frequency-domain full waveform inversion.In order to solve the computationally intensive in inversion,we apply a combination of coarse-fined grained MPI parallel algorithm based on frequencies and multi-source simulations computing independently in frequency-domain forward modeling.We use coarse grained in frequency parallel and fine grained in solve equations parallel.To realization the method,we put different frequency group of forward modeling in different MPI com...