TY  - GEN
T1  - Comparison of HPC architectures for computing all-pairs shortest paths : Intel Xeon Phi KNL vs NVIDIA Pascal
A1  - Costanzo, Manuel
A2  - Rucci, Enzo
A2  - Costi, Ulises
A2  - Chichizola, Franco
A2  - Naiouf, Ricardo Marcelo
LA  - English
UL  - http://catalogo.bibliotecas.unlp.edu.ar/Record/dif.57385
AB  - 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.
NO  - Formato de archivo PDF. -- Este documento es producción intelectual de la Facultad de Informática - UNLP (Colección BIPA/Biblioteca)
KW  - COMPUTACIÓN DE ALTO RENDIMIENTO - HPC
KW  - Xeon Phi
ER  -