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Simulating networks with mobile nodes requires implementing node movements according to mobility models and determining when which nodes can communicate. These computations grow with the number of nodes and may constitute a bottleneck when scaling up simulations. We present a design to push parallelizable computations for nodes movement and contact detection to a GPU and assess the achievable scale. Our design can simulate 1M nodes for a simple mobility model and 400K for a more complex one.
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Wagner et al. (2024) studied this question.
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