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Your search keyword '"Gayatri, Rahulkumar"' showing total 2 results
Start Over Author "Gayatri, Rahulkumar" Publisher escholarship, university of california
2 results on '"Gayatri, Rahulkumar"'

1. Kokkos 3: Programming Model Extensions for the Exascale Era

Author

Trott, Christian R, Lebrun-Grandie, Damien, Arndt, Daniel, Ciesko, Jan, Dang, Vinh, Ellingwood, Nathan, Gayatri, Rahulkumar, Harvey, Evan, Hollman, Daisy S, Ibanez, Dan, Liber, Nevin, Madsen, Jonathan, Miles, Jeff, Poliakoff, David, Powell, Amy, Rajamanickam, Sivasankaran, Simberg, Mikael, Sunderland, Dan, Turcksin, Bruno, and Wilke, Jeremiah

Subjects
Computer Software, Distributed Computing, Communications Technologies
Published
2022

2. Experiences in porting mini‐applications to OpenACC and OpenMP on heterogeneous systems

Author

Larrea, Verónica G Vergara, Budiardja, Reuben D, Gayatri, Rahulkumar, Daley, Christopher, Hernandez, Oscar, and Joubert, Wayne

Subjects
Information and Computing Sciences, Applied Computing, Bioengineering, mini-applications, OpenACC, OpenMP, performance evaluation, Artificial Intelligence and Image Processing, Computer Software, Distributed Computing, Information and computing sciences
Abstract

This article studies mini-applications—Minisweep, GenASiS, GPP, and FF—that use computational methods commonly encountered in HPC. We have ported these applications to develop OpenACC and OpenMP versions, and evaluated their performance on Titan (Cray XK7 with K20x GPUs), Cori (Cray XC40 with Intel KNL), Summit (IBM AC922 with Volta GPUs), and Cori-GPU (Cray CS-Storm 500NX with Intel Skylake and Volta GPUs). Our goals are for these new ports to be useful to both application and compiler developers, to document and describe the lessons learned and the methodology to create optimized OpenMP and OpenACC versions, and to provide a description of possible migration paths between the two specifications. Cases where specific directives or code patterns result in improved performance for a given architecture are highlighted. We also include discussions of the functionality and maturity of the latest compilers available on the above platforms with respect to OpenACC or OpenMP implementations.

Published
2020

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