Topology-Aware Data Aggregation for High Performance Collective MPI-IO on a Multi-core Cluster System


Parallel I/O such as MPI-IO is one of the performance improvement solutions in parallel computing using MPI. ROMIO is a widely used MPI-IO implementation which addresses to improve collective I/O performance by using its optimization named two-phase I/O. File I/O task is given to a subset of or all of MPI processes, which are called aggregators. Multiple… (More)
DOI: 10.1109/CANDAR.2016.0022


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