Evaluation of DVFS and uncore frequency tuning under power capping on intel broadwell architecture

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27740%2F20%3A10244989" target="_blank" >RIV/61989100:27740/20:10244989 - isvavai.cz</a>

Výsledek na webu

<a href="http://ebooks.iospress.nl/publication/53972" target="_blank" >http://ebooks.iospress.nl/publication/53972</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3233/APC200093" target="_blank" >10.3233/APC200093</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of DVFS and uncore frequency tuning under power capping on intel broadwell architecture

Popis výsledku v původním jazyce

In this paper we present an evaluation of the Intel Xeon Broadwell platform in the CINECA Galileo supercomputer when DVFS and UnCore Frequency (UCF) tuning is performed under the active power capping using RAPL powercap registers. This work is an extension of our previous work done under the H2020 READEX project which focused on a dynamic tuning of DVFS and UCF for complex HPC applications, but with no powercap limit enforced. Power capping is an essential technique that allows system administrators to maintain the power budget of an entire system or data center using either out-of-band management system or runtime systems such as GEOPM. In this paper we use two boundary workloads, Compute Bound Workload (CBW) and Memory Bound Workload (MBW) to show the behavior of the platform under power capping and potential for both energy and runtime savings when compared to the default CPU behavior. We show that DVFS and UCF tuning behave differently under the limited power budget. Our results show that if CPU has a limited power budget the proper tuning can provide both improved energy consumption as well as reduced runtime and that it is important to tune both DVFS and UCF. For MBW we can save up 22% for both runtime and energy when compared to default behavior under powercap. For CBW we can improve both performance, up to 9.4%, and energy consumption, up to 14.9%. (C) 2020 The authors and IOS Press.

Název v anglickém jazyce

Evaluation of DVFS and uncore frequency tuning under power capping on intel broadwell architecture

Popis výsledku anglicky

In this paper we present an evaluation of the Intel Xeon Broadwell platform in the CINECA Galileo supercomputer when DVFS and UnCore Frequency (UCF) tuning is performed under the active power capping using RAPL powercap registers. This work is an extension of our previous work done under the H2020 READEX project which focused on a dynamic tuning of DVFS and UCF for complex HPC applications, but with no powercap limit enforced. Power capping is an essential technique that allows system administrators to maintain the power budget of an entire system or data center using either out-of-band management system or runtime systems such as GEOPM. In this paper we use two boundary workloads, Compute Bound Workload (CBW) and Memory Bound Workload (MBW) to show the behavior of the platform under power capping and potential for both energy and runtime savings when compared to the default CPU behavior. We show that DVFS and UCF tuning behave differently under the limited power budget. Our results show that if CPU has a limited power budget the proper tuning can provide both improved energy consumption as well as reduced runtime and that it is important to tune both DVFS and UCF. For MBW we can save up 22% for both runtime and energy when compared to default behavior under powercap. For CBW we can improve both performance, up to 9.4%, and energy consumption, up to 14.9%. (C) 2020 The authors and IOS Press.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Projekt

<a href="/cs/project/LM2018140" target="_blank" >LM2018140: e-Infrastruktura CZ</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Advances in Parallel Computing. Volume 36

ISBN

978-1-64368-070-5

ISSN

0927-5452

e-ISSN

1879-808X

Počet stran výsledku

10

Strana od-do

634-643

Název nakladatele

IOS Press

Místo vydání

Amsterdam

Místo konání akce

Praha

Datum konání akce

10. 9. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—