Comparison of HPC architectures for computing all-pairs shortest paths

Título:

Comparison of HPC architectures for computing all-pairs shortest paths: Intel Xeon Phi KNL vs NVIDIA Pascal

Autor:

Costanzo, Manuel

Colaboradores:

; Rucci, Enzo; Costi, Ulises; Chichizola, Franco; Naiouf, Ricardo Marcelo

Temas:

COMPUTACIÓN DE ALTO RENDIMIENTO - HPC

En:

Congreso Argentino de Ciencias de la Computación (CACIC) (26to : 2020 : San Justo, Argentina)

Resumen:

Today, one of the main challenges for high-performance computing systems is to improve their performance by keeping energy consumption at acceptable levels. In this context, a consolidated strategy consists of using accelerators such as GPUs or many-core Intel Xeon Phi processors. In this work, devices of the NVIDIA Pascal and Intel Xeon Phi Knights Landing architectures are described and compared. Selecting the Floyd-Warshall algorithm as a representative case of graph and memory-bound applications, optimized implementations were developed to analyze and compare performance and energy efficiency on both devices. As it was expected, Xeon Phi showed superior when considering double-precision data. However, contrary to what was considered in our preliminary analysis, it was found that the performance and energy efficiency of both devices were comparable using single-precision datatype.

URL/DOI:

http://sedici.unlp.edu.ar/handle/10915/113268

Palabras clave:

Xeon Phi

Medio:

Soporte electrónico

Tipo de documento:

Artículo

Descripción física:

1 archivo (466,1 kB)

Idioma:

Inglés

Publicación:

, 2020

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