25022

Comparison of HPC Architectures for Computing All-Pairs Shortest Paths. Intel Xeon Phi KNL vs NVIDIA Pascal

Manuel Costanzo, Enzo Rucci, Ulises Costi, Franco Chichizola, Marcelo Naiouf
III-LIDI, Facultad de Informática, UNLP – CIC, La Plata (1900), Bs As, Argentina
arXiv:2105.07298 [cs.DC], (15 May 2021)

@article{Costanzo_2021,

   title={Comparison of HPC Architectures for Computing All-Pairs Shortest Paths. Intel Xeon Phi KNL vs NVIDIA Pascal},

   ISBN={9783030758363},

   ISSN={1865-0937},

   url={http://dx.doi.org/10.1007/978-3-030-75836-3_3},

   DOI={10.1007/978-3-030-75836-3_3},

   journal={Computer Science – CACIC 2020},

   publisher={Springer International Publishing},

   author={Costanzo, Manuel and Rucci, Enzo and Costi, Ulises and Chichizola, Franco and Naiouf, Marcelo},

   year={2021},

   pages={37–49}

}

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.
Rating: 5.0/5. From 1 vote.
Please wait...

* * *

* * *

HGPU group © 2010-2021 hgpu.org

All rights belong to the respective authors

Contact us: