DimmWitted: A Study of Main-Memory Statistical Analytics

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Provided by: University of Wisconsin-La Crosse
Topic: Storage
Format: PDF
The authors perform the first study of the tradeoff space of access methods and replication to support statistical analytics using first-order methods executed in the main memory of a Non-Uniform Memory Access (NUMA) machine. Statistical analytics systems differ from conventional SQL-analytics in the amount and types of memory incoherence they can tolerate. Their goal is to understand tradeoffs in accessing the data in row- or column-order and at what granularity one should share the model and data for a statistical task. They study this new tradeoff space, and discover there are tradeoffs between hardware and statistical efficiency.
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