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Distributed vertex-centric model has been recently proposed for large-scale graph processing. Due to the simple but efficient programming abstraction, similar graph computing frameworks based on GPUs are gaining more and more attention. However, prior works of GPU-based graph processing suffer from load imbalance and irregular memory access because of the inherent characteristics of graph applications...
MPI collective I/O is a widely used I/O method that helps data-intensive scientific applications gain better I/O performance. However, it has been observed that existing collective I/O strategies do not perform well due to the access contention problem. Existing collective I/O optimization strategies mainly focus on the I/O phase efficiency and ignore the shuffle cost that may limit the potential...
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