Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: PMEvo: Portable Inference of Port Mappings for Out-of-Order Processors
  by Evolutionary Optimization   Achieving peak performance in a computer system requires optimizations in
every layer of the system, be it hardware or software. A detailed understanding
of the underlying hardware, and especially the processor, is crucial to
optimize software. One key criterion for the performance of a processor is its
ability to exploit instruction-level parallelism. This ability is determined by
the port mapping of the processor, which describes the execution units of the
processor for each instruction.
  Processor manufacturers usually do not share the port mappings of their
microarchitectures. While approaches to automatically infer port mappings from
experiments exist, they are based on processor-specific hardware performance
counters that are not available on every platform.
  We present PMEvo, a framework to automatically infer port mappings solely
based on the measurement of the execution time of short instruction sequences.
PMEvo uses an evolutionary algorithm that evaluates the fitness of candidate
mappings with an analytical throughput model formulated as a linear program.
Our prototype implementation infers a port mapping for Intel's Skylake
architecture that predicts measured instruction throughput with an accuracy
that is competitive to existing work. Furthermore, it finds port mappings for
AMD's Zen+ architecture and the ARM Cortex-A72 architecture, which are out of
scope of existing techniques.

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The categories of this paper are: funct-an
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
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The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con