Search Results - "Grützmacher, Thomas"

A customized precision format based on mantissa segmentation for accelerating sparse linear algebra by Grützmacher, Thomas, Cojean, Terry, Flegar, Goran, Göbel, Fritz, Anzt, Hartwig

“…Summary In this work, we pursue the idea of radically decoupling the floating point format used for arithmetic operations from the format used to store the…”
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Ginkgo - A math library designed to accelerate Exascale Computing Project science applications by Cojean, Terry, Nayak, Pratik, Ribizel, Tobias, Beams, Natalie, Mike Tsai, Yu-Hsiang, Koch, Marcel, Göbel, Fritz, Grützmacher, Thomas, Anzt, Hartwig

“…Large-scale simulations require efficient computation across the entire computing hierarchy. A challenge of the Exascale Computing Project (ECP) was to…”
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Compressed basis GMRES on high-performance graphics processing units by Aliaga, José I., Anzt, Hartwig, Grützmacher, Thomas, Quintana-Ortí, Enrique S., Tomás, Andrés E.

“…Krylov methods provide a fast and highly parallel numerical tool for the iterative solution of many large-scale sparse linear systems. To a large extent, the…”
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Using Ginkgo's memory accessor for improving the accuracy of memory‐bound low precision BLAS by Grützmacher, Thomas, Anzt, Hartwig, Quintana‐Ortí, Enrique S.

“…The roofline model not only provides a powerful tool to relate an application's performance with the specific constraints imposed by the target hardware but…”
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Toward a modular precision ecosystem for high-performance computing by Anzt, Hartwig, Flegar, Goran, Grützmacher, Thomas, Quintana-Ortí, Enrique S

“…With the memory bandwidth of current computer architectures being significantly slower than the (floating point) arithmetic performance, many scientific…”
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Multifacets of lossy compression for scientific data in the Joint-Laboratory of Extreme Scale Computing by Cappello, Franck, Acosta, Mario, Agullo, Emmanuel, Anzt, Hartwig, Calhoun, Jon, Di, Sheng, Giraud, Luc, Grützmacher, Thomas, Jin, Sian, Sano, Kentaro, Sato, Kento, Singh, Amarjit, Tao, Dingwen, Tian, Jiannan, Ueno, Tomohiro, Underwood, Robert, Vivien, Frédéric, Yepes, Xavier, Kazutomo, Yoshii, Zhang, Boyuan

“…The Joint Laboratory on Extreme-Scale Computing (JLESC) was initiated at the same time lossy compression for scientific data became an important topic for the…”
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Compressed basis GMRES on high-performance graphics processing units by Aliaga, José I, Anzt, Hartwig, Grützmacher, Thomas, Quintana-Ortí, Enrique S, Tomás, Andrés E

“…Krylov methods provide a fast and highly parallel numerical tool for the iterative solution of many large-scale sparse linear systems. To a large extent, the…”
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Compression and load balancing for efficient sparse matrix‐vector product on multicore processors and graphics processing units by Aliaga, José I., Anzt, Hartwig, Grützmacher, Thomas, Quintana‐Ortí, Enrique S., Tomás, Andrés E.

“…Summary We contribute to the optimization of the sparse matrix‐vector product by introducing a variant of the coordinate sparse matrix format that balances the…”
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Ginkgo: A high performance numerical linear algebra library by Anzt, Hartwig, Cojean, Terry, Chen, Yen-Chen, Flegar, Goran, Göbel, Fritz, Grützmacher, Thomas, Nayak, Pratik, Ribizel, Tobias, Tsai, Yu-Hsiang

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FRSZ2 for In-Register Block Compression Inside GMRES on GPUs by Grützmacher, Thomas, Underwood, Robert, Di, Sheng, Cappello, Franck, Anzt, Hartwig

“…The performance of the GMRES iterative solver on GPUs is limited by the GPU main memory bandwidth. Compressed Basis GMRES outperforms GMRES by storing the…”
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Compressed Basis GMRES on High Performance GPUs by Aliaga, José I, Anzt, Hartwig, Grützmacher, Thomas, Quintana-Ortí, Enrique S, Tomás, Andrés E

“…Krylov methods provide a fast and highly parallel numerical tool for the iterative solution of many large-scale sparse linear systems. To a large extent, the…”
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Variable-Size Batched Condition Number Calculation on GPUs by Anzt, Hartwig, Dongarra, Jack, Flegar, Goran, Grutzmacher, Thomas

“…We present a kernel that is designed to quickly compute the condition number of a large collection of tiny matrices on a graphics processing unit (GPU). The…”
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Ginkgo: A Modern Linear Operator Algebra Framework for High Performance Computing by Anzt, Hartwig, Cojean, Terry, Flegar, Goran, Göbel, Fritz, Grützmacher, Thomas, Nayak, Pratik, Ribizel, Tobias, Tsai, Yuhsiang Mike, Quintana-Ortí, Enrique S

“…In this paper, we present Ginkgo, a modern C++ math library for scientific high performance computing. While classical linear algebra libraries act on matrix…”
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A Survey of Numerical Methods Utilizing Mixed Precision Arithmetic by Abdelfattah, Ahmad, Anzt, Hartwig, Boman, Erik G, Carson, Erin, Cojean, Terry, Dongarra, Jack, Gates, Mark, Grützmacher, Thomas, Higham, Nicholas J, Li, Sherry, Lindquist, Neil, Liu, Yang, Loe, Jennifer, Luszczek, Piotr, Nayak, Pratik, Pranesh, Sri, Rajamanickam, Siva, Ribizel, Tobias, Smith, Barry, Swirydowicz, Kasia, Thomas, Stephen, Tomov, Stanimire, Tsai, Yaohung M, Yamazaki, Ichitaro, Yang, Urike Meier

“…Within the past years, hardware vendors have started designing low precision special function units in response to the demand of the Machine Learning community…”
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Gate-induced decoupling of surface and bulk state properties in selectively-deposited Bi$_2$Te$_3$ nanoribbons by Rosenbach, Daniel, Moors, Kristof, Jalil, Abdur R., Kölzer, Jonas, Zimmermann, Erik, Schubert, Jürgen, Karimzadah, Soraya, Mussler, Gregor, Schüffelgen, Peter, Grützmacher, Detlev, Lüth, Hans, Schäpers, Thomas

“…Three-dimensional topological insulators (TIs) host helical Dirac surface states at the interface with a trivial insulator. In quasi-one-dimensional TI…”
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High-Performance GPU Implementation of PageRank with Reduced Precision Based on Mantissa Segmentation by Grutzmacher, Thomas, Anzt, Hartwig, Scheidegger, Florian, Quintana-Orti, Enrique S.

“…We address the acceleration of the PageRank al- gorithm for web information retrieval on graphics processing units (GPUs) via a modular precision framework…”
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