Abstract
We present Reflector, to support both high-level and low-level I/O monitoring through user-defined interfaces such as HDF5 and NetCDF in addition to POSIX- and MPI-IO. We evaluate Reflector on both an on-premises 500-core HPC cluster and a leadership-class supercomputer at the Lawrence Berkeley National Laboratory. Preliminary results are promising as the system prototype incurs negligible performance overhead and clearly illustrates the I/O patterns and bottlenecks of multiple applications.
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CITATION STYLE
Al-Mamun, A., Liu, J., Li, T., Koziol, Q., Zhai, Z., Qian, J., … Zhao, D. (2020). Reflector: A fine-grained I/O tracker for HPC systems. In Proceedings of the ACM SIGPLAN Symposium on Principles and Practice of Parallel Programming, PPOPP (pp. 427–428). Association for Computing Machinery. https://doi.org/10.1145/3332466.3374505
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