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    Article

    I/O separation scheme on Lustre metadata server based on multi-stream SSD

    As the price of NAND-flash storage decreases, large-scale backend distributed file systems are being constructed as all-flash storage without HDDs. In fact, the performance of an SSD can sharply decrease due t...

    Cheongjun Lee, Jaehwan Lee, Chungyong kim, Jiwoo Bang, Eun-Kyu Byun… in Cluster Computing (2023)

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    Article

    Towards enhanced I/O performance of a highly integrated many-core processor by empirical analysis

    Optimized for parallel operations, Intel’s second generation Xeon Phi processor, code-named Knights Landing (KNL), is actively utilized in high performance computing systems based on its highly integrated core...

    Cheongjun Lee, Jaehwan Lee, Donghun Koo, Chungyong Kim, Jiwoo Bang… in Cluster Computing (2023)

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    Article

    Accelerating I/O performance of ZFS-based Lustre file system in HPC environment

    To meet increasing data access performance demands of applications run on high-performance computing (HPC) systems, an efficient design of HPC storage file system is becoming more important. Nowadays, Lustre i...

    Jiwoo Bang, Chungyong Kim, Eun-Kyu Byun, Hanul Sung… in The Journal of Supercomputing (2023)