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Wayne State University Dissertations
Hard Disks, High-Performance Computing, MPI/IO, Parallel File Systems
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Rethinking The Design And Implementation Of The I/O Software Stack For High-Performance Computing, Xuechen Zhang
Rethinking The Design And Implementation Of The I/O Software Stack For High-Performance Computing, Xuechen Zhang
Wayne State University Dissertations
Current I/O stack for high-performance computing is composed of multiple software layers in order to hide users from complexity of I/O performance optimization. However, the design and implementation of a specific layer is usually carried out separately with limited consideration of its impact on other layers, which could result in suboptimal I/O performance because data access locality is weakened, if not lost, on hard disk, a widely used storage medium in high-end storage systems.
In this dissertation, we experimentally demonstrated such issues in four different layers, including operating system process management layer and MPI-IO middleware layer on compute server side, …