Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: PIMDB: Understanding Bulk-Bitwise Processing In-Memory Through Database
  Analytics   Bulk-bitwise processing-in-memory (PIM), where large bitwise operations are
performed in parallel by the memory array itself, is an emerging form of
computation with the potential to mitigate the memory wall problem. This paper
examines the capabilities of bulk-bitwise PIM by constructing PIMDB, a
fully-digital system based on memristive stateful logic, utilizing and focusing
on in-memory bulk-bitwise operations, designed to accelerate a real-life
workload: analytical processing of relational databases. We introduce a host
processor programming model to support bulk-bitwise PIM in virtual memory,
develop techniques to efficiently perform in-memory filtering and aggregation
operations, and present the mapping of the application into the memory. When
tested against an equivalent in-memory database on the same host system, our
approach substantially lowers the number of required memory read operations,
thus accelerating TPC-H filter operations by 1.6$\times$--18$\times$ and full
queries by 56$\times$--608$\times$, while reducing the energy consumption by
1.7$\times$--18.6$\times$ and 0.81$\times$--12$\times$ for these benchmarks,
respectively. Our extensive evaluation uses the gem5 full-system simulation
environment.

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The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
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The categories of this paper are: quant-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
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The categories of this paper are: solv-int
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The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
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The categories of this paper are: astro-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: physics
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex