A Novel Parallelized Approach with Dynamic Strategy for Simulating Regional Seafloor Reverberation

Seafloor reverberation arising from acoustic scattering at inhomogeneous interfaces represents a key topic in acoustic physics. Traditional single-point methods are inefficient for large-scale regional calculations and fail to meet real-time requirements. This paper proposes a novel parallelization approach built on three core components. First, a scalable serial algorithm based on ray model and Lambert scattering function overcomes the scale limitations of conventional methods for regional reverberation computation. Second, a task-based parallel algorithm operating at the process level exploits multilayer loop structures to enhance computational efficiency. Third, block-partitioning scheduling strategies that combine static and dynamic approaches optimize task distribution while mitigating load imbalance. Experiments conducted in the Bashi Strait and the South China Sea using 2025 global ocean forecast data demonstrate substantial performance gains. A calculation covering 58,400[Formula: see text][Formula: see text] was completed in 81.54 seconds using 800 processes, achieving a speedup of 503.69. Dynamic scheduling reduced load imbalance by up to 98.18% and improved speedup by a maximum of 37.89%. The proposed approach provides robust support for large-scale seafloor reverberation simulations.