Abstract
Point to point latency and bandwidth measurements are often the first benchmarks run on a new machine or MPI implementation. In this paper we show that the common way of measuring latency hides valuable information about the transmission time characteristics. We introduce a simple benchmark to measure transmission time variance and report on the results from a variety of systems.
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Riesen, R., Brightwell, R., Maccabe, A.B. (2003). Measuring MPI Latency Variance. In: Dongarra, J., Laforenza, D., Orlando, S. (eds) Recent Advances in Parallel Virtual Machine and Message Passing Interface. EuroPVM/MPI 2003. Lecture Notes in Computer Science, vol 2840. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-39924-7_19
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DOI: https://doi.org/10.1007/978-3-540-39924-7_19
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-20149-6
Online ISBN: 978-3-540-39924-7
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