A close exchange with users is essential for the further development of the NHR@KIT services and infrastructures. For this reason, a new series of events has been launched, where operators and users can meet and exchange ideas in an informal setting: HPC Café.   In addition to our established contact channels and training courses, we offer the HPC Café at regular intervals (every first friday of a month).   The event will take place from 10 am to 12 pm with a keynote speech, which will be followed by a discussion.   Keynote speech topic for upcoming HPC Café:   April 4, 2025: Hybrid Quantum-Classical Optimization with the ProvideQ Toolbox by Domenik Eichhorn (KIT/KASTEL)   Abstract: Hybrid solvers for combinatorial optimization problems combine the advantages of classical and quantum computing to address challenging computational tasks. While theoretically promising, their practical applicability remains difficult due to the lack of a technological stack that seamlessly integrates quantum solutions with classical optimization frameworks. In this presentation, we introduce the ProvideQ toolbox, a software tool that enables users to adapt and configure hybrid solvers via Meta-Solver strategies. These strategies implement decomposition techniques that divide problems into classical and quantum subroutines, allowing for flexible and efficient hybrid optimization. The ProvideQ toolbox facilitates the interactive creation of such decompositions through a Meta-Solver configuration tool, integrating well-established classical techniques with quantum circuits executable on multiple backends. Alongside the introduction of ProvideQ, we also provide a general overview of the quantum computing and quantum software domains, setting the stage for understanding the challenges and opportunities in hybrid quantum-classical optimization.   Of course, a question and answer session is also planned. Here, users can address HPC-related topics and problems. We will try to find solutions together.   Would you like a presentation on a specific topic? Please let us know. --> office@nhr.kit.edu   Over coffee and cookies, the topics raised can be discussed in greater depth.   Please register on Indico event page in order to attend.   We look forward to seeing you there and hope for a lively participation!   For further information, please visit the event website at https://indico.scc.kit.edu/event/4802

OpenFOAM(R) is an open-source package for simulation of fluid flow and heat transfer problems in engineering, nature, biological and astrophysical systems.   As a joint effort of bwHPC-S5 and NHR@KIT, the Scientific Computing Center (SCC) is hosting an introductory level course on the parallel use of OpenFOAM software for (current and future) users of the bwUniCluster (bwForClusters) or HoreKa supercomputers.   Short description: The first day of the course aims at gaining basic skills for the work with OpenFOAM on the supercomputers in Baden-Württemberg. The differences between the work on a serial and on a massive parallel computer with distributed memory are emphasized. The participants will receive written tutorials which allow learning how to perform parallel computations step by step. In the second day a complex conjugated fluid-flow and heat transfer example will be worked out. More advanced topics like unsteady boundary conditions for turbulent flows as well as visualization of the obtained results with Paraview will be considered.   The link to the course description and registration is: https://indico.scc.kit.edu/event/4944    Form: online (MS Teams), registration only with valid Email from (applied) universities within Baden-Württemberg (no private boxes like gmail, yahoo etc. possible)   Schedule: 13.05.2005 (9:30h till 15:00h) and 14.05.2005 (9:30h till 14:00h)   Language: English

OpenFOAM(R) is an open-source package for simulation of fluid flow and heat transfer problems in engineering, nature, biological and astrophysical systems.   As a joint effort of bwHPC-S5 and NHR@KIT, the Scientific Computing Center (SCC) is hosting an introductory level course on the parallel use of OpenFOAM software for (current and future) users of the bwUniCluster (bwForClusters) or HoreKa supercomputers.   Short description: The first day of the course aims at gaining basic skills for the work with OpenFOAM on the supercomputers in Baden-Württemberg. The differences between the work on a serial and on a massive parallel computer with distributed memory are emphasized. The participants will receive written tutorials which allow learning how to perform parallel computations step by step. In the second day a complex conjugated fluid-flow and heat transfer example will be worked out. More advanced topics like unsteady boundary conditions for turbulent flows as well as visualization of the obtained results with Paraview will be considered.   The link to the course description and registration is: https://indico.scc.kit.edu/event/4944    Form: online (MS Teams), registration only with valid Email from (applied) universities within Baden-Württemberg (no private boxes like gmail, yahoo etc. possible)   Schedule: 13.05.2005 (9:30h till 15:00h) and 14.05.2005 (9:30h till 14:00h)   Language: English