OpenMP application experiences: Porting to accelerated nodes

As recent enhancements to the OpenMP specification become available in its implementations, there is a need to share the results of experimentation in order to better understand the OpenMP implementation’s behavior in practice, to identify pitfalls, and to learn how the implementations can be effect...

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Published inParallel computing Vol. 109; no. C; p. 102856
Main Authors Bak, Seonmyeong, Bertoni, Colleen, Boehm, Swen, Budiardja, Reuben, Chapman, Barbara M., Doerfert, Johannes, Eisenbach, Markus, Finkel, Hal, Hernandez, Oscar, Huber, Joseph, Iwasaki, Shintaro, Kale, Vivek, Kent, Paul R.C., Kwack, JaeHyuk, Lin, Meifeng, Luszczek, Piotr, Luo, Ye, Pham, Buu, Pophale, Swaroop, Ravikumar, Kiran, Sarkar, Vivek, Scogland, Thomas, Tian, Shilei, Yeung, P.K.
Format Journal Article
LanguageEnglish
Published Netherlands Elsevier B.V 01.03.2022
Elsevier
Subjects
Accelerators
Application porting experiences
GAMESS
GenASiS
GESTS
GridQCD
High performance computing
LSMS
OpenMP implementations
QMCPACK
RAJA
SLATE
RAJA
GAMESS
QMCPACK
Accelerators
High performance computing
GridQCD
Application porting experiences
GenASiS
SLATE
GESTS
LSMS
OpenMP implementations
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Abstract As recent enhancements to the OpenMP specification become available in its implementations, there is a need to share the results of experimentation in order to better understand the OpenMP implementation’s behavior in practice, to identify pitfalls, and to learn how the implementations can be effectively deployed in scientific codes. We report on experiences gained and practices adopted when using OpenMP to port a variety of ECP applications, mini-apps and libraries based on different computational motifs to accelerator-based leadership-class high-performance supercomputer systems at the United States Department of Energy. Additionally, we identify important challenges and open problems related to the deployment of OpenMP. Through our report of experiences, we find that OpenMP implementations are successful on current supercomputing platforms and that OpenMP is a promising programming model to use for applications to be run on emerging and future platforms with accelerated nodes.
AbstractList As recent enhancements to the OpenMP specification become available in its implementations, there is a need to share the results of experimentation in order to better understand the OpenMP implementation’s behavior in practice, to identify pitfalls, and to learn how the implementations can be effectively deployed in scientific codes. We report on experiences gained and practices adopted when using OpenMP to port a variety of ECP applications, mini-apps and libraries based on different computational motifs to accelerator-based leadership-class high-performance supercomputer systems at the United States Department of Energy. Additionally, we identify important challenges and open problems related to the deployment of OpenMP. Through our report of experiences, we find that OpenMP implementations are successful on current supercomputing platforms and that OpenMP is a promising programming model to use for applications to be run on emerging and future platforms with accelerated nodes.
ArticleNumber 102856
Author Scogland, Thomas
Kale, Vivek
Kwack, JaeHyuk
Ravikumar, Kiran
Doerfert, Johannes
Iwasaki, Shintaro
Luszczek, Piotr
Tian, Shilei
Pophale, Swaroop
Budiardja, Reuben
Boehm, Swen
Hernandez, Oscar
Finkel, Hal
Chapman, Barbara M.
Bak, Seonmyeong
Yeung, P.K.
Lin, Meifeng
Luo, Ye
Huber, Joseph
Kent, Paul R.C.
Bertoni, Colleen
Sarkar, Vivek
Eisenbach, Markus
Pham, Buu
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  surname: Yeung
  fullname: Yeung, P.K.
  email: pk.yeung@ae.gatech.edu
  organization: Georgia Institute of Technology, Atlanta, GA 30332, USA
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Issue C
Keywords RAJA
GAMESS
QMCPACK
Accelerators
High performance computing
GridQCD
Application porting experiences
GenASiS
SLATE
GESTS
LSMS
OpenMP implementations
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Snippet As recent enhancements to the OpenMP specification become available in its implementations, there is a need to share the results of experimentation in order to...
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StartPage 102856
SubjectTerms Accelerators
Application porting experiences
GAMESS
GenASiS
GESTS
GridQCD
High performance computing
LSMS
OpenMP implementations
QMCPACK
RAJA
SLATE
Title OpenMP application experiences: Porting to accelerated nodes
URI https://dx.doi.org/10.1016/j.parco.2021.102856
https://www.osti.gov/biblio/1829922
Volume 109
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