Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: LIKWID: Lightweight Performance Tools   Exploiting the performance of today's microprocessors requires intimate
knowledge of the microarchitecture as well as an awareness of the ever-growing
complexity in thread and cache topology. LIKWID is a set of command line
utilities that addresses four key problems: Probing the thread and cache
topology of a shared-memory node, enforcing thread-core affinity on a program,
measuring performance counter metrics, and microbenchmarking for reliable upper
performance bounds. Moreover, it includes a mpirun wrapper allowing for
portable thread-core affinity in MPI and hybrid MPI/threaded applications. To
demonstrate the capabilities of the tool set we show the influence of thread
affinity on performance using the well-known OpenMP STREAM triad benchmark, use
hardware counter tools to study the performance of a stencil code, and finally
show how to detect bandwidth problems on ccNUMA-based compute nodes.

5
The categories of this paper are: gr-qc
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The categories of this paper are: bayes-an
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The categories of this paper are: hep-th
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
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The categories of this paper are: nlin
37
The categories of this paper are: supr-con
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The categories of this paper are: econ
27
The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
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The categories of this paper are: physics
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The categories of this paper are: chao-dyn
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The categories of this paper are: adap-org