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    Free sphingobases induce RBOHD-dependent reactive oxygen species production in Arabidopsis leaves

    Peer, Markus, Bach, Matthias, Mueller, Martin J, Waller, Frank
    FEBS letters, 03 October 2011, Vol.585(19), pp.3006-10 [Peer Reviewed Journal]
    MEDLINE/PubMed (U.S. National Library of Medicine)
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    Title: Free sphingobases induce RBOHD-dependent reactive oxygen species production in Arabidopsis leaves
    Author: Peer, Markus; Bach, Matthias; Mueller, Martin J; Waller, Frank
    Subject: Arabidopsis -- Anatomy & Histology ; Arabidopsis Proteins -- Metabolism ; Nadph Oxidases -- Metabolism ; Plant Leaves -- Metabolism ; Reactive Oxygen Species -- Metabolism ; Sphingolipids -- Metabolism
    Description: Sphingolipids are implied in several regulatory processes, including cell death. Levels of the free sphingobase t18:0 (phytosphingosine) increase in Arabidopsis in response to the bacterial pathogen Pseudomonas syringae. To gain information on sphingobase-induced signaling, we determined kinetics of leaf reactive oxygen species (ROS) levels and cell death in response to specific sphingobases. t18:0, d18:0 and d17:1, but not d20:0, induced ROS and cell death within 1.5-2h. Early sphingobase-induced ROS production was independent of cell death induction and required the NADPH oxidase Respiratory Burst Oxidase Homolog D (RBOHD). Specific sphingobases can therefore induce cell death and require RBOHD for early ROS induction in plants.
    Is part of: FEBS letters, 03 October 2011, Vol.585(19), pp.3006-10
    Identifier: 1873-3468 (E-ISSN); 21856300 Version (PMID); 10.1016/j.febslet.2011.08.016 (DOI)

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    Optimized HPL for AMD GPU and multi-core CPU usage

    Bach, Matthias, Kretz, Matthias, Lindenstruth, Volker, Rohr, David
    Computer Science - Research and Development, 2011, Vol.26(3), pp.153-164 [Peer Reviewed Journal]
    Springer Science & Business Media B.V.
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    Title: Optimized HPL for AMD GPU and multi-core CPU usage
    Author: Bach, Matthias; Kretz, Matthias; Lindenstruth, Volker; Rohr, David
    Subject: Heterogeneous computing ; Linpack ; HPL ; DGEMM ; CALDGEMM ; GPGPU
    Description: The installation of the LOEWE-CSC ( http://csc.uni-frankfurt.de/csc/?51 ) supercomputer at the Goethe University in Frankfurt lead to the development of a Linpack which can fully utilize the installed AMD Cypress GPUs. At its core, a fast DGEMM for combined GPU and CPU usage was created. The DGEMM library is tuned to hide all DMA transfer times and thus maximize the GPU load. A work stealing scheduler was implemented to add the remaining CPU resources to the DGEMM. On the GPU, the DGEMM achieves 497 GFlop/s (90.9% of the theoretical peak). Combined with the 24-core Magny-Cours CPUs, 623 GFlop/s (83.6% of the peak) are achieved. The HPL () benchmark was modified to perform well with one MPI-process per node. The modifications include multi-threading, vectorization, use of the GPU DGEMM, cache optimizations, and a new Lookahead algorithm. A Linpack performance of 70% theoretical peak is achieved and this performance scales linearly to hundreds of nodes.
    Is part of: Computer Science - Research and Development, 2011, Vol.26(3), pp.153-164
    Identifier: 1865-2034 (ISSN); 1865-2042 (E-ISSN); 10.1007/s00450-011-0161-5 (DOI)

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    Lattice QCD based on OpenCL

    Bach, Matthias, Lindenstruth, Volker, Philipsen, Owe, Pinke, Christopher
    arXiv.org, Sep 26, 2012 [Peer Reviewed Journal]
    © ProQuest LLC All rights reserved, Engineering Database, Publicly Available Content Database, ProQuest Engineering Collection, ProQuest Technology Collection, ProQuest SciTech Collection, Materials Science & Engineering Database, ProQuest Central (new), ProQuest Central Korea, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest One Academic, Engineering Collection (ProQuest)
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    Title: Lattice QCD based on OpenCL
    Author: Bach, Matthias; Lindenstruth, Volker; Philipsen, Owe; Pinke, Christopher
    Contributor: Pinke, Christopher (pacrepositoryorg)
    Subject: Algorithms ; Quantum Chromodynamics ; Monte Carlo Method ; Fermions
    Description: We present an OpenCL-based Lattice QCD application using a heatbath algorithm for the pure gauge case and Wilson fermions in the twisted mass formulation. The implementation is platform independent and can be used on AMD or NVIDIA GPUs, as well as on classical CPUs. On the AMD Radeon HD 5870 our double precision dslash implementation performs at 60 GFLOPS over a wide range of lattice sizes. The hybrid Monte-Carlo presented reaches a speedup of four over the reference code running on a server CPU.
    Is part of: arXiv.org, Sep 26, 2012
    Identifier: 2331-8422 (E-ISSN); 10.1016/j.cpc.2013.03.020 (DOI)

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    Lattice QCD based on OpenCL

    Bach, Matthias, Lindenstruth, Volker, Philipsen, Owe, Pinke, Christopher
    Cornell University
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    Title: Lattice QCD based on OpenCL
    Author: Bach, Matthias; Lindenstruth, Volker; Philipsen, Owe; Pinke, Christopher
    Subject: High Energy Physics - Lattice
    Description: We present an OpenCL-based Lattice QCD application using a heatbath algorithm for the pure gauge case and Wilson fermions in the twisted mass formulation. The implementation is platform independent and can be used on AMD or NVIDIA GPUs, as well as on classical CPUs. On the AMD Radeon HD 5870 our double precision dslash implementation performs at 60 GFLOPS over a wide range of lattice sizes. The hybrid Monte-Carlo presented reaches a speedup of four over the reference code running on a server CPU. Comment: 19 pages, 11 figures
    Identifier: 1209.5942 (ARXIV ID)

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    CL2QCD - Lattice QCD based on OpenCL

    Philipsen, Owe, Pinke, Christopher, Sciarra, Alessandro, Bach, Matthias
    arXiv.org, Nov 20, 2014
    © ProQuest LLC All rights reserved, Engineering Database, Publicly Available Content Database, ProQuest Engineering Collection, ProQuest Technology Collection, ProQuest SciTech Collection, Materials Science & Engineering Database, ProQuest Central (new), ProQuest Central Korea, SciTech Premium Collection, Technology Collection, ProQuest Central Essentials, ProQuest One Academic, Engineering Collection (ProQuest)
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    Title: CL2QCD - Lattice QCD based on OpenCL
    Author: Philipsen, Owe; Pinke, Christopher; Sciarra, Alessandro; Bach, Matthias
    Contributor: Bach, Matthias (pacrepositoryorg)
    Subject: Quantum Chromodynamics ; Central Processing Units–Cpus
    Description: We present the Lattice QCD application CL2QCD, which is based on OpenCL and can be utilized to run on Graphic Processing Units as well as on common CPUs. We focus on implementation details as well as performance results of selected features. CL2QCD has been successfully applied in LQCD studies at finite temperature and density and is available at http://code.compeng.uni-frankfurt.de/projects/clhmc .
    Is part of: arXiv.org, Nov 20, 2014
    Identifier: 2331-8422 (E-ISSN)

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    CL2QCD - Lattice QCD based on OpenCL

    Philipsen, Owe, Pinke, Christopher, Sciarra, Alessandro, Bach, Matthias
    PoS(LATTICE2014)038
    Cornell University
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    Title: CL2QCD - Lattice QCD based on OpenCL
    Author: Philipsen, Owe; Pinke, Christopher; Sciarra, Alessandro; Bach, Matthias
    Subject: High Energy Physics - Lattice
    Description: We present the Lattice QCD application CL2QCD, which is based on OpenCL and can be utilized to run on Graphic Processing Units as well as on common CPUs. We focus on implementation details as well as performance results of selected features. CL2QCD has been successfully applied in LQCD studies at finite temperature and density and is available at http://code.compeng.uni-frankfurt.de/projects/clhmc . Comment: 10 pages, 5 figures; posters presented at the 32nd International Symposium on Lattice Field Theory (23-28 June 2014, Columbia University New York, NY, USA)
    Is part of: PoS(LATTICE2014)038
    Identifier: 1411.5219 (ARXIV ID)

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    Rollator use and functional outcome of geriatric rehabilitation

    Vogt, Lutz, Lucki, Katrin, Bach, Matthias, Banzer, Winfried
    Journal of rehabilitation research and development, 2010, Vol.47(2), pp.151-6 [Peer Reviewed Journal]
    MEDLINE/PubMed (U.S. National Library of Medicine)
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    Title: Rollator use and functional outcome of geriatric rehabilitation
    Author: Vogt, Lutz; Lucki, Katrin; Bach, Matthias; Banzer, Winfried
    Subject: Dependent Ambulation ; Mobility Limitation ; Self-Help Devices ; Walkers ; Physical Therapy Modalities -- Instrumentation
    Description: In a quasi-experimental pre- and postdesign, we examined the effect of rollator use on functional rehabilitation outcome in geriatric patients.From a sample of 458 geriatric inpatients, we matched 30 subjects who were not using assistive devices in their everyday lives but received a wheeled walker at the time of hospital admission (first-time user group) according to their admission scores on three motor performance tests (Timed Up-and-Go, Five-Times-Sit-to-Stand, and Performance-Oriented Mobility Assessment -Balance) with 30 patients who were actively using rollators as their primary walking aid for at least 3 months (long-term user group) and 30 control subjects without walking-aid assistance. Measurements were repeated after the inpatient rehabilitation regimen.The Kruskal-Wallis test did not reveal significant group differences in rehabilitation progress. Controls and device users, regardless of walking-aid experience, demonstrated nearly comparable mobility, strength, and balance...
    Is part of: Journal of rehabilitation research and development, 2010, Vol.47(2), pp.151-6
    Identifier: 1938-1352 (E-ISSN); 20593328 Version (PMID)

    • Several versions

    An Etiologic Profile of Anemia in 405 Geriatric Patients

    Geisel, Tabea, Martin, Julia, Schulze, Bettina, Schaefer, Roland, Bach, Matthias, Virgin, Garth, Stein, Jürgen
    Anemia, 2014, Vol.2014, 7 pages [Peer Reviewed Journal]

    • Several versions

    Efficacy and Safety of Intravenous Ferric Carboxymaltose in Geriatric Inpatients at a German Tertiary University Teaching Hospital: A Retrospective Observational Cohort Study of Clinical Practice

    Bach, Matthias, Geisel, Tabea, Martin, Julia, Schulze, Bettina, Schaefer, Roland, Virgin, Garth, Stein, Juergen
    Anemia, 2015, Vol.2015, 8 pages [Peer Reviewed Journal]

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    LatticeQCD using OpenCL

    Bach, Matthias, Philipsen, Owe, Pinke, Christopher, Schäfer, Christian, Zeidlewicz, Lars
    Cornell University
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    Title: LatticeQCD using OpenCL
    Author: Bach, Matthias; Philipsen, Owe; Pinke, Christopher; Schäfer, Christian; Zeidlewicz, Lars
    Subject: High Energy Physics - Lattice
    Description: We report on our implementation of LatticeQCD applications using OpenCL. We focus on the general concept and on distributing different parts on hybrid systems, consisting of both CPUs (Central Processing Units) and GPUs (Graphic Processing Units). Comment: 7 pages, 13 figures, proceedings of the XXIX International Symposium on Lattice Field Theory - Lattice 2011, July 10-16, 2011, Squaw Valley, Lake Tahoe, California
    Identifier: 1112.5280 (ARXIV ID)