An example of porting PETSc applications to heterogeneous platforms with OpenACC

Pi Yueh Chuang; Fernanda S. Foertter

doi:10.1007/978-3-319-74896-2_1

An example of porting PETSc applications to heterogeneous platforms with OpenACC

Pi Yueh Chuang, Fernanda S. Foertter

Analytics and AI Methods at Scale

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In this paper, we document the workflow of our practice to port a PETSc application with OpenACC to a supercomputer, Titan, at Oak Ridge National Laboratory. Our experience shows a few lines of code modifications with OpenACC directives can give us a speedup of 1.34x in a PETSc-based Poisson solver (conjugate gradient method with algebraic multigrid preconditioner). This demonstrates the feasibility of enabling GPU capability in PETSc with OpenACC. We hope our work can serve as a reference to those who are interested in porting their legacy PETSc applications to modern heterogeneous platforms.

Original language	English
Title of host publication	Accelerator Programming Using Directives - 4th International Workshop, WACCPD 2017, Held in Conjunction with the International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2017, Proceedings
Editors	Guido Juckeland, Sunita Chandrasekaran
Publisher	Springer Verlag
Pages	3-19
Number of pages	17
ISBN (Print)	9783319748955
DOIs	https://doi.org/10.1007/978-3-319-74896-2_1
State	Published - 2018
Event	4th International Workshop on Accelerator Programming Using Directives, WACCPD 2017, Held in Conjunction with the International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2017 - Denver, United States Duration: Nov 13 2017 → Nov 13 2017

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	10732 LNCS
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Conference

Conference	4th International Workshop on Accelerator Programming Using Directives, WACCPD 2017, Held in Conjunction with the International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2017
Country/Territory	United States
City	Denver
Period	11/13/17 → 11/13/17

Funding

This manuscript has been co-authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). Acknowledgement. This research used resources of the Oak Ridge Leadership Computing Facility at Oak Ridge National Laboratory, which is supported by the Office of Science of the Department of Energy under Contract DE-AC05-00OR22725.

Funders	Funder number
Oak
Office of Science of the Department of Energy
US Department of Energy
UT-Battelle
U.S. Department of Energy	DE-AC05-00OR22725
Oak Ridge National Laboratory

Keywords

GPU computing
OpenACC
PETSc

Access to Document

10.1007/978-3-319-74896-2_1

Cite this

Chuang, P. Y., & Foertter, F. S. (2018). An example of porting PETSc applications to heterogeneous platforms with OpenACC. In G. Juckeland, & S. Chandrasekaran (Eds.), Accelerator Programming Using Directives - 4th International Workshop, WACCPD 2017, Held in Conjunction with the International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2017, Proceedings (pp. 3-19). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 10732 LNCS). Springer Verlag. https://doi.org/10.1007/978-3-319-74896-2_1

Chuang, Pi Yueh ; Foertter, Fernanda S. / An example of porting PETSc applications to heterogeneous platforms with OpenACC. Accelerator Programming Using Directives - 4th International Workshop, WACCPD 2017, Held in Conjunction with the International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2017, Proceedings. editor / Guido Juckeland ; Sunita Chandrasekaran. Springer Verlag, 2018. pp. 3-19 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

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abstract = "In this paper, we document the workflow of our practice to port a PETSc application with OpenACC to a supercomputer, Titan, at Oak Ridge National Laboratory. Our experience shows a few lines of code modifications with OpenACC directives can give us a speedup of 1.34x in a PETSc-based Poisson solver (conjugate gradient method with algebraic multigrid preconditioner). This demonstrates the feasibility of enabling GPU capability in PETSc with OpenACC. We hope our work can serve as a reference to those who are interested in porting their legacy PETSc applications to modern heterogeneous platforms.",

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Chuang, PY & Foertter, FS 2018, An example of porting PETSc applications to heterogeneous platforms with OpenACC. in G Juckeland & S Chandrasekaran (eds), Accelerator Programming Using Directives - 4th International Workshop, WACCPD 2017, Held in Conjunction with the International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2017, Proceedings. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 10732 LNCS, Springer Verlag, pp. 3-19, 4th International Workshop on Accelerator Programming Using Directives, WACCPD 2017, Held in Conjunction with the International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2017, Denver, United States, 11/13/17. https://doi.org/10.1007/978-3-319-74896-2_1

An example of porting PETSc applications to heterogeneous platforms with OpenACC. / Chuang, Pi Yueh; Foertter, Fernanda S.
Accelerator Programming Using Directives - 4th International Workshop, WACCPD 2017, Held in Conjunction with the International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2017, Proceedings. ed. / Guido Juckeland; Sunita Chandrasekaran. Springer Verlag, 2018. p. 3-19 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 10732 LNCS).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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Chuang PY, Foertter FS. An example of porting PETSc applications to heterogeneous platforms with OpenACC. In Juckeland G, Chandrasekaran S, editors, Accelerator Programming Using Directives - 4th International Workshop, WACCPD 2017, Held in Conjunction with the International Conference for High Performance Computing, Networking, Storage and Analysis, SC 2017, Proceedings. Springer Verlag. 2018. p. 3-19. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). doi: 10.1007/978-3-319-74896-2_1

An example of porting PETSc applications to heterogeneous platforms with OpenACC

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