Abstract
The technique of user-level communication, where incoming messages wait in a busy loop, is used in most MPI implementations to achieve high communication performance. However, in some cases a kernel-level blocking receive is preferred. Some MPI implementations have an option to switch from user-level to kernel-level blocking with the sacrifice of communication performance. This paper identifies the problems when implementing kernel-level blocking receiving and proposes several techniques to avoid these problems. Evaluations show that the proposed kernel-level blocking techniques may achieve comparable performance with user-level communication.
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Hori, A., Kameyama, T., Tsujita, Y., Namiki, M., Ishikawa, Y. (2012). An Efficient Kernel-Level Blocking MPI Implementation. In: Träff, J.L., Benkner, S., Dongarra, J.J. (eds) Recent Advances in the Message Passing Interface. EuroMPI 2012. Lecture Notes in Computer Science, vol 7490. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33518-1_20
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DOI: https://doi.org/10.1007/978-3-642-33518-1_20
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