Výsledky vyhledávání - "Sameh S. Sharkawi"

Communication protocol optimization for enhanced GPU performance

Autor: Sameh S. Sharkawi, George A. Chochia

Publikováno v: IBM Journal of Research and Development. 64:9:1-9:9

The U.S. Department of Energy CORAL program systems SUMMIT and SIERRA are based on hybrid servers comprising IBM POWER9 CPUs and NVIDIA V100 graphics processing units (GPUs) connected by two extended data rate (EDR) links to a high-speed InfiniBand N

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::65e5a2bebe0712ed2b84686cf12f2bcf
https://doi.org/10.1147/jrd.2020.2967311

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The high-speed networks of the Summit and Sierra supercomputers

Autor: Michael Kagan, Sameh S. Sharkawi, Bryan S. Rosenburg, Richard L. Graham, George Chochia, Craig B. Stunkel, Gilad Shainer

Publikováno v: IBM Journal of Research and Development. 64:3:1-3:10

Oak Ridge National Laboratory's Summit supercomputer and Lawrence Livermore National Laboratory's Sierra supercomputer utilize InfiniBand interconnect in a Fat-tree network topology, interconnecting all compute nodes, storage nodes, administration, a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7f803b46f22b030814c5d06a58f159c6
https://doi.org/10.1147/jrd.2020.2967330

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Optimization of Message Passing Services on POWER8 InfiniBand Clusters

Autor: Amith R. Mamidala, K A Nysal Jan, Sameer Kumar, Robert S. Blackmore, Sameh S. Sharkawi, T. J. Chris Ward

Publikováno v: EuroMPI

We present scalability and performance enhancements to MPI libraries on POWER8 InfiniBand clusters. We explore optimizations in the Parallel Active Messaging Interface (PAMI) libraries. We bypass IB VERBS via low level inline calls resulting in low l

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8cbfd27ecfb35282a3cfb59dc19be039
https://doi.org/10.1145/2966884.2966909

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Optimization and Analysis of MPI Collective Communication on Fat-Tree Networks

Autor: K A Nysal Jan, Sameer Kumar, Sameh S. Sharkawi

Publikováno v: IPDPS

We explore new collective algorithms to optimize MPIBcast, MPIReduce and MPIAllreduce on InfiniBand clusters. Our algorithms are specifically designed for fat-tree networks. We present multi-color k-ary trees with a novel mapping scheme to map the co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9353f328933c05eaa31f3c0f5511e90b
https://doi.org/10.1109/ipdps.2016.85

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SWAPP: A Framework for Performance Projections of HPC Applications Using Benchmarks

Autor: Valerie Taylor, Stephen Stevens, Xingfu Wu, Don DeSota, Raj Panda, Sameh S. Sharkawi

Publikováno v: IPDPS Workshops

Surrogate-based Workload Application Performance Projection (SWAPP) is a framework for performance projections of High Performance Computing (HPC) applications using benchmark data. Performance projections of HPC applications onto various hardware pl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::83344641a5dba4a6386d7b9c86e086a6
https://doi.org/10.1109/ipdpsw.2012.214

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Performance Analysis and Optimization of Parallel Scientific Applications on CMP Cluster Systems

Autor: Xingfu Wu, Valerie Taylor, Charles Lively, Sameh S. Sharkawi

Publikováno v: ICPP Workshops

Chip multiprocessors (CMP) are widely used for high performance computing. Further, these CMPs are being configured in a hierarchical manner to compose a node in a cluster system. A major challenge to be addressed is efficient use of such cluster sys

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7a9d9313ebf4bb4783937e005cd9dbc9
https://doi.org/10.1109/icpp-w.2008.21

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