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The increasing scale and complexity of distributed computing systems have made network communication an important factor influencing overall computational performance. Modern distributed artificial intelligence (AI), large language model (LLM) training, distributed inference, scientific computing, and data-intensive applications frequently require substantial data exchange between geographically or logically distributed computational nodes. Such communication may involve model parameters, gradients, intermediate computational results, feature representations, activation tensors, and other data dependencies. Although existing communication optimization techniques improve network utilization through routing, bandwidth allocation, communication scheduling, caching, and asynchronous transmission, their operational decisions are generally triggered by existing communication requirements or currently observable network conditions. This paper introduces Predictive Communication Preparation (PCP), a conceptual framework that investigates whether future communication requirements can be predicted and selectively prepared before the corresponding data transfers become immediately necessary. Rather than treating communication operations as activities that should begin only after their dependencies become active, PCP considers the computational structure, execution progress, historical communication patterns, task dependencies, and network conditions as signals for anticipating future data transfer requirements. The proposed architecture integrates future communication demand prediction, dependency-aware transfer identification, predictive connection establishment, bandwidth reservation, network path selection, proactive data prefetching, communication window scheduling, computation–communication coordination, and uncertainty-aware transfer cancellation. A central objective is to reduce communication-related waiting time by preparing network operations while preceding computational stages are still executing. In suitable circumstances, data required by a subsequent computational stage may arrive before that stage becomes ready, allowing communication and computation to overlap more effectively and potentially reducing overall distributed job completion time. A unified optimization formulation is developed to characterize the expected benefits of predictive communication preparation while accounting for prediction uncertainty, transfer completion deadlines, network congestion, bandwidth opportunity costs, data freshness, storage requirements, and redundant transfer expenditure. The framework further distinguishes between communication infrastructure preparation and actual data prefetching, recognizing that establishing a communication path does not necessarily imply that transferring the complete dataset in advance is beneficial. An experimental methodology is proposed to evaluate communication waiting time, end-to-end job completion time, computation–communication overlap, network utilization, transfer efficiency, and the total cost of predictive operations. Comparisons with reactive communication, conventional communication scheduling, and existing coflow-oriented approaches are proposed to identify the conditions under which predictive preparation may provide measurable advantages. The proposed framework does not assume that advance communication is universally beneficial. Its effectiveness depends on the predictability of computational dependencies, the availability of network resources, the accuracy of transfer-size estimates, and the compatibility of prepared communication resources with subsequent execution requirements. This research advances a predictive networking perspective in which distributed computing systems do not merely initiate communication when data becomes necessary, but attempt to anticipate, prepare, and coordinate future data transfers before their associated computational dependencies become active.
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Jincheng Zhang (2026) studied this question.
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