Abstract
This paper introduces Gotcha, a function wrapping interface and library for HPC tools. Many HPC tools, and performance analysis tools in particular, rely on function wrapping to integrate with applications. But existing mechanisms, such as LD_PRELOAD on Linux, have limitations that lead to tool instability and complexity. Gotcha addresses the limitations in existing mechanisms, provides a programmable interface for HPC tools to manage function wrapping, and supports function wrapping across multiple tools. In addition, this paper introduces the idea of interface-independent function wrapping, which makes it possible for tools to wrap arbitrary application functions.
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Poliakoff, D., LeGendre, M. (2019). Gotcha: An Function-Wrapping Interface for HPC Tools. In: Bhatele, A., Boehme, D., Levine, J., Malony, A., Schulz, M. (eds) Programming and Performance Visualization Tools. ESPT ESPT VPA VPA 2017 2018 2017 2018. Lecture Notes in Computer Science(), vol 11027. Springer, Cham. https://doi.org/10.1007/978-3-030-17872-7_11
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