Jannek Squar got his B.Sc. in Computing in Science with focus on physics and obtained his M.Sc. in Computer Science at Universität Hamburg. As a student he worked for several years as a teaching assistant in various fields like “Formal Foundations of Computer Science” and “Algorithms and Data Structures”. Since November 2016 he has been employed as a scientific researcher at the working group Scientific Computing for the project “i_SSS - integrated Support System for Sustainability”. His research interests include intra-node and inter-node parallelism and high performance computing in general.

• i_SSS

• MPI-3 algorithms for 3D radiative transfer on Intel Xeon Phi coprocessors (Jannek Squar), Master's Thesis, Advisors: Peter Hauschildt, Michael Kuhn, 2016-10-20, Thesis – Publication details – URL
• Einsatz von Beschleunigerkarten für das Postprocessing großer Datensätze (Jannek Squar), Bachelor's Thesis, Advisors: Petra Nerge, Michael Kuhn, 2014-12-03, Thesis – Publication details – URL

• Compiler Assisted Source Transformation of OpenMP Kernels (Jannek Squar, Tim Jammer, Michael Blesel, Michael Kuhn, Thomas Ludwig), In 2020 19th International Symposium on Parallel and Distributed Computing (ISPDC), pp. 44–51, IEEE, ISPDC 2020, Warsaw, Poland, ISBN: 978-1-7281-8947-5, 2020-07-05
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• State of the Art and Future Trends in Data Reduction for High-Performance Computing (Kira Duwe, Jakob Lüttgau, Georgiana Mania, Jannek Squar, Anna Fuchs, Michael Kuhn, Eugen Betke, Thomas Ludwig), In Supercomputing Frontiers and Innovations, Series: Volume 7, Number 1, pp. 4–36, (Editors: Jack Dongarra, Vladimir Voevodin), Publishing Center of South Ural State University (454080, Lenin prospekt, 76, Chelyabinsk, Russia), 2020-04
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• Wissenschaftliches Rechnen - Scientific Computing - 2016 (Yevhen Alforov, Eugen Betke, Konstantinos Chasapis, Anna Fuchs, Fabian Große, Nabeeh Jumah, Michael Kuhn, Julian Kunkel, Hermann Lenhart, Jakob Lüttgau, Philipp Neumann, Anastasiia Novikova, Jannek Squar, Thomas Ludwig), Research Group: Scientific Computing, University of Hamburg (Deutsches Klimarechenzentrum GmbH, Bundesstraße 45a, D-20146 Hamburg), 2017-06-19
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• The use of ICON data within SAGA GIS for decision support in agricultural crop land utilisation (Jannek Squar, Michael Bock, Olaf Conrad, Christoph Geck, Tobias Kawohl, Michael Kuhn, Lars Landschreiber, Sandra Wendland, Thomas Ludwig, Jürgen Böhner), Hamburg, Germany, DKRZ user workshop 2017, 2017-10-09
  Publication details

• i_SSS – integrated Support System for Sustainability (Jannek Squar, Michael Bock, Olaf Conrad, Christoph Geck, Tobias Kawohl, Michael Kuhn, Lars Landschreiber, Sandra Wendland, Thomas Ludwig, Jürgen Böhner), Frankfurt, Germany, ISC High Performance 2017, 2017-06-20
  Publication details – URL

• Automatic distribution of OpenMP kernels using CATO (Jannek Squar), Arbeitskreis Klima, Hamburg, Germany, 2021-03-25 Presentation

• CATO - Compiler assisted source-to-source transformation of OpenMP kernels to utilise distributed memory (Jannek Squar, Michael Blesel, Tim Jammer, Michael Kuhn, Thomas Ludwig), OpenMPCon 2018, Barcelona, Spain, 2018-09-25 Presentation

• Analysis of elastic Cloud solutions in an HPC Environment (Johannes Coym), Master's Thesis, Advisors: Jannek Squar, Michael Kuhn, Reviewers: Michael Kuhn, Thomas Ludwig, 2021-10-23, Thesis – Publication details
• Optimising Scientific Software for Heterogeneous Cluster Computers: Evaluation of Machine Learning Methods for Source Code Classification (Ruben Felgenhauer), Master's Thesis, Advisors: Jannek Squar, Peter Hauschildt, Reviewers: Thomas Ludwig, Peter Hauschildt, 2021-09-23, Thesis – Publication details
• Performance modeling of one-sided and two-sided MPI-3 communication (Niclas Schroeter), Bachelor's Thesis, Advisors: Michael Kuhn, Jannek Squar, Reviewers: Michael Kuhn, Jannek Squar, 2021-05-09, Thesis – Publication details
• Message passing safety and correctness checks at compile time using Rust (Michael Blesel), Master's Thesis, Advisors: Michael Kuhn, Jannek Squar, Reviewers: Michael Kuhn, Thomas Ludwig, 2021-02-15, Thesis – Publication details

• Verification of one-sided MPI communication code using static analysis in LLVM (Marcel Heing-Becker), Master's Thesis, Advisors: Jannek Squar, Michael Kuhn, Reviewers: Thomas Ludwig, Michael Kuhn, 2019-02-25, Thesis – Publication details

• Characterization and translation of OpenMP use cases to MPI using LLVM (Tim Jammer), Master's Thesis, Advisors: Jannek Squar, Michael Kuhn, Reviewers: Thomas Ludwig, Michael Kuhn, 2018-12-04, Thesis – Publication details
• Leistungsverbesserung der Simulation von 3D Strahlung auf extrasolare Planeten (Oliver Pola), Bachelor's Thesis, Advisors: Peter Hauschildt, Michael Kuhn, Jannek Squar, Reviewers: Michael Kuhn, Peter Hauschildt, 2018-08-06, Thesis – Publication details

• Vorlesung „Hochleistungsrechnen“ (Ansprechpartner: Anna Fuchs)
• Seminar „Supercomputer: Forschung und Innovtion“ (Ansprechpartner: Anna Fuchs)
• Projekt „Parallele Systeme“ (Ansprechpartner: Anna Fuchs)
• Projekt mit Seminar „Parallele Systeme für Fortgeschrittene“ (Ansprechpartner: Anna Fuchs)
• Wettbewerb „Student Cluster Competition“ (Ansprechpartner: Anna Fuchs)

• Proseminar „Softwareentwicklung in der Wissenschaft“ (Ansprechpartner: Dr. Hermann Lenhart)
• Projekt „Parallele Systeme“ (Ansprechpartner: Anna Fuchs)
• Proseminar „Effiziente Programming in C“ (Ansprechpartner: Anna Fuchs)

• Vorlesung „Hochleistungsrechnen“ (Ansprechpartner: Anna Fuchs)
• Projekt „Parallelrechnerevaluation“ (Ansprechpartner: Anna Fuchs)
• Seminar „Effiziente Programmierung“ (Ansprechpartner: Anna Fuchs)

• Proseminar „Softwareentwicklung in der Wissenschaft“ (Ansprechpartner: Dr. Hermann Lenhart)
• Wettbewerb „Student Cluster Competition“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)

• Projekt „Parallelrechnerevaluation“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)
• Praktikum „C-Programmierung“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)
• Seminar „Effiziente Programmierung“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)

• Proseminar „Softwareentwicklung in der Wissenschaft“ (Ansprechpartner: Dr. Hermann Lenhart)
• Projekt „Parallelrechnerevaluation“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)
• Proseminar „Python im Hochleistungsrechnen“ (Ansprechpartner: Jakob Lüttgau)
• Wettbewerb „Student Cluster Competition“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)

• Projekt mit Seminar „Paralleles Rechnen für Fortgeschrittene“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)
• Projekt „Parallelrechnerevaluation“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)
• Praktikum „C-Programmierung“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)
• Seminar „Effiziente Programmierung“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)
• Proseminar „Speicher- und Dateisysteme“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)

• Seminar „Softwareentwicklung in der Wissenschaft“ (Ansprechpartner: Dr. Hermann Lenhart)
• Projekt „Parallelrechnerevaluation“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)
• Proseminar „Effiziente Programmierung“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)
• Wettbewerb „Student Cluster Competition“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)

• Seminar „Effiziente Programmierung“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)
• Projekt „Parallelrechnerevaluation“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)
• Praktikum „Aufbau eines Clusters“ (Ansprechpartner: Jun.-Prof. Dr. Michael Kuhn)