[{"status":"public","title":"A computation of D(9) using FPGA Supercomputing","_id":"43439","author":[{"first_name":"Lennart","last_name":"Van Hirtum","full_name":"Van Hirtum, Lennart"},{"first_name":"Patrick","last_name":"De Causmaecker","full_name":"De Causmaecker, Patrick"},{"full_name":"Goemaere, Jens","first_name":"Jens","last_name":"Goemaere"},{"id":"3145","full_name":"Kenter, Tobias","last_name":"Kenter","first_name":"Tobias"},{"first_name":"Heinrich","last_name":"Riebler","full_name":"Riebler, Heinrich","id":"8961"},{"full_name":"Lass, Michael","id":"24135","first_name":"Michael","last_name":"Lass","orcid":"0000-0002-5708-7632"},{"full_name":"Plessl, Christian","id":"16153","last_name":"Plessl","first_name":"Christian","orcid":"0000-0001-5728-9982"}],"date_updated":"2024-01-22T09:56:42Z","year":"2023","external_id":{"arxiv":["2304.03039"]},"type":"preprint","publication":"arXiv:2304.03039","project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"bibtex":"@article{Van Hirtum_De Causmaecker_Goemaere_Kenter_Riebler_Lass_Plessl_2023, title={A computation of D(9) using FPGA Supercomputing}, journal={arXiv:2304.03039}, author={Van Hirtum, Lennart and De Causmaecker, Patrick and Goemaere, Jens and Kenter, Tobias and Riebler, Heinrich and Lass, Michael and Plessl, Christian}, year={2023} }","ieee":"L. Van Hirtum et al., “A computation of D(9) using FPGA Supercomputing,” arXiv:2304.03039. 2023.","ama":"Van Hirtum L, De Causmaecker P, Goemaere J, et al. A computation of D(9) using FPGA Supercomputing. arXiv:230403039. Published online 2023.","chicago":"Van Hirtum, Lennart, Patrick De Causmaecker, Jens Goemaere, Tobias Kenter, Heinrich Riebler, Michael Lass, and Christian Plessl. “A Computation of D(9) Using FPGA Supercomputing.” ArXiv:2304.03039, 2023.","mla":"Van Hirtum, Lennart, et al. “A Computation of D(9) Using FPGA Supercomputing.” ArXiv:2304.03039, 2023.","apa":"Van Hirtum, L., De Causmaecker, P., Goemaere, J., Kenter, T., Riebler, H., Lass, M., & Plessl, C. (2023). A computation of D(9) using FPGA Supercomputing. In arXiv:2304.03039.","short":"L. Van Hirtum, P. De Causmaecker, J. Goemaere, T. Kenter, H. Riebler, M. Lass, C. Plessl, ArXiv:2304.03039 (2023)."},"user_id":"3145","date_created":"2023-04-08T11:05:29Z","department":[{"_id":"27"},{"_id":"518"}],"language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"This preprint makes the claim of having computed the $9^{th}$ Dedekind\r\nNumber. This was done by building an efficient FPGA Accelerator for the core\r\noperation of the process, and parallelizing it on the Noctua 2 Supercluster at\r\nPaderborn University. The resulting value is\r\n286386577668298411128469151667598498812366. This value can be verified in two\r\nsteps. We have made the data file containing the 490M results available, each\r\nof which can be verified separately on CPU, and the whole file sums to our\r\nproposed value."}]},{"status":"public","title":"Computing and Compressing Electron Repulsion Integrals on FPGAs","_id":"43228","main_file_link":[{"url":"https://ieeexplore.ieee.org/document/10171537"}],"author":[{"id":"77439","full_name":"Wu, Xin","last_name":"Wu","first_name":"Xin"},{"full_name":"Kenter, Tobias","id":"3145","first_name":"Tobias","last_name":"Kenter"},{"id":"75963","full_name":"Schade, Robert","orcid":"0000-0002-6268-539","first_name":"Robert","last_name":"Schade"},{"first_name":"Thomas","last_name":"Kühne","id":"49079","full_name":"Kühne, Thomas"},{"first_name":"Christian","last_name":"Plessl","orcid":"0000-0001-5728-9982","full_name":"Plessl, Christian","id":"16153"}],"page":"162-173","doi":"10.1109/FCCM57271.2023.00026","date_updated":"2023-08-02T15:05:42Z","year":"2023","quality_controlled":"1","type":"conference","external_id":{"arxiv":["2303.13632"]},"publication":"2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)","project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"bibtex":"@inproceedings{Wu_Kenter_Schade_Kühne_Plessl_2023, title={Computing and Compressing Electron Repulsion Integrals on FPGAs}, DOI={10.1109/FCCM57271.2023.00026}, booktitle={2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)}, author={Wu, Xin and Kenter, Tobias and Schade, Robert and Kühne, Thomas and Plessl, Christian}, year={2023}, pages={162–173} }","mla":"Wu, Xin, et al. “Computing and Compressing Electron Repulsion Integrals on FPGAs.” 2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM), 2023, pp. 162–73, doi:10.1109/FCCM57271.2023.00026.","ama":"Wu X, Kenter T, Schade R, Kühne T, Plessl C. Computing and Compressing Electron Repulsion Integrals on FPGAs. In: 2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM). ; 2023:162-173. doi:10.1109/FCCM57271.2023.00026","chicago":"Wu, Xin, Tobias Kenter, Robert Schade, Thomas Kühne, and Christian Plessl. “Computing and Compressing Electron Repulsion Integrals on FPGAs.” In 2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM), 162–73, 2023. https://doi.org/10.1109/FCCM57271.2023.00026.","ieee":"X. Wu, T. Kenter, R. Schade, T. Kühne, and C. Plessl, “Computing and Compressing Electron Repulsion Integrals on FPGAs,” in 2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM), 2023, pp. 162–173, doi: 10.1109/FCCM57271.2023.00026.","short":"X. Wu, T. Kenter, R. Schade, T. Kühne, C. Plessl, in: 2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM), 2023, pp. 162–173.","apa":"Wu, X., Kenter, T., Schade, R., Kühne, T., & Plessl, C. (2023). Computing and Compressing Electron Repulsion Integrals on FPGAs. 2023 IEEE 31st Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM), 162–173. https://doi.org/10.1109/FCCM57271.2023.00026"},"date_created":"2023-03-30T11:15:40Z","user_id":"75963","abstract":[{"text":"The computation of electron repulsion integrals (ERIs) over Gaussian-type orbitals (GTOs) is a challenging problem in quantum-mechanics-based atomistic simulations. In practical simulations, several trillions of ERIs may have to be\r\ncomputed for every time step.\r\nIn this work, we investigate FPGAs as accelerators for the ERI computation. We use template parameters, here within the Intel oneAPI tool flow, to create customized designs for 256 different ERI quartet classes, based on their orbitals. To maximize data reuse, all intermediates are buffered in FPGA on-chip memory with customized layout. The pre-calculation of intermediates also helps to overcome data dependencies caused by multi-dimensional recurrence\r\nrelations. The involved loop structures are partially or even fully unrolled for high throughput of FPGA kernels. Furthermore, a lossy compression algorithm utilizing arbitrary bitwidth integers is integrated in the FPGA kernels. To our\r\nbest knowledge, this is the first work on ERI computation on FPGAs that supports more than just the single most basic quartet class. Also, the integration of ERI computation and compression it a novelty that is not even covered by CPU or GPU libraries so far.\r\nOur evaluation shows that using 16-bit integer for the ERI compression, the fastest FPGA kernels exceed the performance of 10 GERIS ($10 \\times 10^9$ ERIs per second) on one Intel Stratix 10 GX 2800 FPGA, with maximum absolute errors around $10^{-7}$ - $10^{-5}$ Hartree. The measured throughput can be accurately explained by a performance model. The FPGA kernels deployed on 2 FPGAs outperform similar computations using the widely used libint reference on a two-socket server with 40 Xeon Gold 6148 CPU cores of the same process technology by factors up to 6.0x and on a new two-socket server with 128 EPYC 7713 CPU cores by up to 1.9x.","lang":"eng"}],"language":[{"iso":"eng"}],"department":[{"_id":"27"},{"_id":"518"}]},{"date_updated":"2023-07-28T09:58:16Z","doi":"10.1145/3592979.3593419","publisher":"ACM","quality_controlled":"1","year":"2023","publication_status":"published","publication":"Proceedings of the Platform for Advanced Scientific Computing Conference","type":"conference","language":[{"iso":"eng"}],"department":[{"_id":"27"},{"_id":"518"}],"oa":"1","date_created":"2023-07-28T09:46:25Z","user_id":"3145","citation":{"apa":"Prouveur, C., Haefele, M., Kenter, T., & Voss, N. (2023). FPGA Acceleration for HPC Supercapacitor Simulations. Proceedings of the Platform for Advanced Scientific Computing Conference. https://doi.org/10.1145/3592979.3593419","chicago":"Prouveur, Charles, Matthieu Haefele, Tobias Kenter, and Nils Voss. “FPGA Acceleration for HPC Supercapacitor Simulations.” In Proceedings of the Platform for Advanced Scientific Computing Conference. ACM, 2023. https://doi.org/10.1145/3592979.3593419.","ama":"Prouveur C, Haefele M, Kenter T, Voss N. FPGA Acceleration for HPC Supercapacitor Simulations. In: Proceedings of the Platform for Advanced Scientific Computing Conference. ACM; 2023. doi:10.1145/3592979.3593419","ieee":"C. Prouveur, M. Haefele, T. Kenter, and N. Voss, “FPGA Acceleration for HPC Supercapacitor Simulations,” 2023, doi: 10.1145/3592979.3593419.","mla":"Prouveur, Charles, et al. “FPGA Acceleration for HPC Supercapacitor Simulations.” Proceedings of the Platform for Advanced Scientific Computing Conference, ACM, 2023, doi:10.1145/3592979.3593419.","short":"C. Prouveur, M. Haefele, T. Kenter, N. Voss, in: Proceedings of the Platform for Advanced Scientific Computing Conference, ACM, 2023.","bibtex":"@inproceedings{Prouveur_Haefele_Kenter_Voss_2023, title={FPGA Acceleration for HPC Supercapacitor Simulations}, DOI={10.1145/3592979.3593419}, booktitle={Proceedings of the Platform for Advanced Scientific Computing Conference}, publisher={ACM}, author={Prouveur, Charles and Haefele, Matthieu and Kenter, Tobias and Voss, Nils}, year={2023} }"},"project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"status":"public","title":"FPGA Acceleration for HPC Supercapacitor Simulations","_id":"46189","author":[{"full_name":"Prouveur, Charles","first_name":"Charles","last_name":"Prouveur"},{"first_name":"Matthieu","last_name":"Haefele","full_name":"Haefele, Matthieu"},{"id":"3145","full_name":"Kenter, Tobias","last_name":"Kenter","first_name":"Tobias"},{"full_name":"Voss, Nils","first_name":"Nils","last_name":"Voss"}],"main_file_link":[{"open_access":"1","url":"https://dl.acm.org/doi/pdf/10.1145/3592979.3593419"}]},{"year":"2023","date_updated":"2024-01-04T08:47:47Z","abstract":[{"text":"Viscous hydrodynamics serves as a successful mesoscopic description of the\r\nQuark-Gluon Plasma produced in relativistic heavy-ion collisions. In order to\r\ninvestigate, how such an effective description emerges from the underlying\r\nmicroscopic dynamics we calculate the hydrodynamic and non-hydrodynamic modes\r\nof linear response in the sound channel from a first-principle calculation in\r\nkinetic theory. We do this with a new approach wherein we discretize the\r\ncollision kernel to directly calculate eigenvalues and eigenmodes of the\r\nevolution operator. This allows us to study the Green's functions at any point\r\nin the complex frequency space. Our study focuses on scalar theory with quartic\r\ninteraction and we find that the analytic structure of Green's functions in the\r\ncomplex plane is far more complicated than just poles or cuts which is a first\r\nstep towards an equivalent study in QCD kinetic theory.","lang":"eng"}],"department":[{"_id":"27"}],"language":[{"iso":"eng"}],"user_id":"67287","date_created":"2024-01-04T08:47:38Z","project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"apa":"Ochsenfeld, S., & Schlichting, S. (2023). Hydrodynamic and Non-hydrodynamic Excitations in Kinetic Theory -- A Numerical Analysis in Scalar Field Theory. In arXiv:2308.04491.","bibtex":"@article{Ochsenfeld_Schlichting_2023, title={Hydrodynamic and Non-hydrodynamic Excitations in Kinetic Theory -- A Numerical Analysis in Scalar Field Theory}, journal={arXiv:2308.04491}, author={Ochsenfeld, Stephan and Schlichting, Sören}, year={2023} }","mla":"Ochsenfeld, Stephan, and Sören Schlichting. “Hydrodynamic and Non-Hydrodynamic Excitations in Kinetic Theory -- A Numerical Analysis in Scalar Field Theory.” ArXiv:2308.04491, 2023.","ama":"Ochsenfeld S, Schlichting S. Hydrodynamic and Non-hydrodynamic Excitations in Kinetic Theory -- A Numerical Analysis in Scalar Field Theory. arXiv:230804491. Published online 2023.","chicago":"Ochsenfeld, Stephan, and Sören Schlichting. “Hydrodynamic and Non-Hydrodynamic Excitations in Kinetic Theory -- A Numerical Analysis in Scalar Field Theory.” ArXiv:2308.04491, 2023.","ieee":"S. Ochsenfeld and S. Schlichting, “Hydrodynamic and Non-hydrodynamic Excitations in Kinetic Theory -- A Numerical Analysis in Scalar Field Theory,” arXiv:2308.04491. 2023.","short":"S. Ochsenfeld, S. Schlichting, ArXiv:2308.04491 (2023)."},"publication":"arXiv:2308.04491","type":"preprint","external_id":{"arxiv":["2308.04491"]},"title":"Hydrodynamic and Non-hydrodynamic Excitations in Kinetic Theory -- A Numerical Analysis in Scalar Field Theory","status":"public","author":[{"last_name":"Ochsenfeld","first_name":"Stephan","full_name":"Ochsenfeld, Stephan"},{"full_name":"Schlichting, Sören","first_name":"Sören","last_name":"Schlichting"}],"_id":"50172"},{"status":"public","title":"Memory Gym: Towards Endless Tasks to Benchmark Memory Capabilities of Agents","_id":"50221","author":[{"full_name":"Pleines, Marco","first_name":"Marco","last_name":"Pleines"},{"full_name":"Pallasch, Matthias","last_name":"Pallasch","first_name":"Matthias"},{"last_name":"Zimmer","first_name":"Frank","full_name":"Zimmer, Frank"},{"full_name":"Preuss, Mike","first_name":"Mike","last_name":"Preuss"}],"date_updated":"2024-01-05T12:39:50Z","year":"2023","external_id":{"arxiv":["2309.17207"]},"type":"preprint","publication":"arXiv:2309.17207","department":[{"_id":"27"}],"abstract":[{"lang":"eng","text":"Memory Gym presents a suite of 2D partially observable environments, namely\r\nMortar Mayhem, Mystery Path, and Searing Spotlights, designed to benchmark\r\nmemory capabilities in decision-making agents. These environments, originally\r\nwith finite tasks, are expanded into innovative, endless formats, mirroring the\r\nescalating challenges of cumulative memory games such as ``I packed my bag''.\r\nThis progression in task design shifts the focus from merely assessing sample\r\nefficiency to also probing the levels of memory effectiveness in dynamic,\r\nprolonged scenarios. To address the gap in available memory-based Deep\r\nReinforcement Learning baselines, we introduce an implementation that\r\nintegrates Transformer-XL (TrXL) with Proximal Policy Optimization. This\r\napproach utilizes TrXL as a form of episodic memory, employing a sliding window\r\ntechnique. Our comparative study between the Gated Recurrent Unit (GRU) and\r\nTrXL reveals varied performances across different settings. TrXL, on the finite\r\nenvironments, demonstrates superior sample efficiency in Mystery Path and\r\noutperforms in Mortar Mayhem. However, GRU is more efficient on Searing\r\nSpotlights. Most notably, in all endless tasks, GRU makes a remarkable\r\nresurgence, consistently outperforming TrXL by significant margins. Website and\r\nSource Code: https://github.com/MarcoMeter/endless-memory-gym/"}],"language":[{"iso":"eng"}],"project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"mla":"Pleines, Marco, et al. “Memory Gym: Towards Endless Tasks to Benchmark Memory Capabilities of Agents.” ArXiv:2309.17207, 2023.","ama":"Pleines M, Pallasch M, Zimmer F, Preuss M. Memory Gym: Towards Endless Tasks to Benchmark Memory Capabilities of Agents. arXiv:230917207. Published online 2023.","ieee":"M. Pleines, M. Pallasch, F. Zimmer, and M. Preuss, “Memory Gym: Towards Endless Tasks to Benchmark Memory Capabilities of Agents,” arXiv:2309.17207. 2023.","chicago":"Pleines, Marco, Matthias Pallasch, Frank Zimmer, and Mike Preuss. “Memory Gym: Towards Endless Tasks to Benchmark Memory Capabilities of Agents.” ArXiv:2309.17207, 2023.","short":"M. Pleines, M. Pallasch, F. Zimmer, M. Preuss, ArXiv:2309.17207 (2023).","apa":"Pleines, M., Pallasch, M., Zimmer, F., & Preuss, M. (2023). Memory Gym: Towards Endless Tasks to Benchmark Memory Capabilities of Agents. In arXiv:2309.17207.","bibtex":"@article{Pleines_Pallasch_Zimmer_Preuss_2023, title={Memory Gym: Towards Endless Tasks to Benchmark Memory Capabilities of Agents}, journal={arXiv:2309.17207}, author={Pleines, Marco and Pallasch, Matthias and Zimmer, Frank and Preuss, Mike}, year={2023} }"},"user_id":"67287","date_created":"2024-01-05T12:38:42Z"},{"date_updated":"2023-07-28T09:58:06Z","doi":"10.1145/3597031.3597050","publisher":"ACM","quality_controlled":"1","year":"2023","publication_status":"published","publication":"Proceedings of the 13th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies","type":"conference","oa":"1","language":[{"iso":"eng"}],"department":[{"_id":"27"},{"_id":"518"}],"date_created":"2023-07-28T09:49:23Z","user_id":"3145","citation":{"bibtex":"@inproceedings{Opdenhövel_Plessl_Kenter_2023, title={Mutation Tree Reconstruction of Tumor Cells on FPGAs Using a Bit-Level Matrix Representation}, DOI={10.1145/3597031.3597050}, booktitle={Proceedings of the 13th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies}, publisher={ACM}, author={Opdenhövel, Jan-Oliver and Plessl, Christian and Kenter, Tobias}, year={2023} }","short":"J.-O. Opdenhövel, C. Plessl, T. Kenter, in: Proceedings of the 13th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies, ACM, 2023.","apa":"Opdenhövel, J.-O., Plessl, C., & Kenter, T. (2023). Mutation Tree Reconstruction of Tumor Cells on FPGAs Using a Bit-Level Matrix Representation. Proceedings of the 13th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies. https://doi.org/10.1145/3597031.3597050","mla":"Opdenhövel, Jan-Oliver, et al. “Mutation Tree Reconstruction of Tumor Cells on FPGAs Using a Bit-Level Matrix Representation.” Proceedings of the 13th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies, ACM, 2023, doi:10.1145/3597031.3597050.","chicago":"Opdenhövel, Jan-Oliver, Christian Plessl, and Tobias Kenter. “Mutation Tree Reconstruction of Tumor Cells on FPGAs Using a Bit-Level Matrix Representation.” In Proceedings of the 13th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies. ACM, 2023. https://doi.org/10.1145/3597031.3597050.","ieee":"J.-O. Opdenhövel, C. Plessl, and T. Kenter, “Mutation Tree Reconstruction of Tumor Cells on FPGAs Using a Bit-Level Matrix Representation,” 2023, doi: 10.1145/3597031.3597050.","ama":"Opdenhövel J-O, Plessl C, Kenter T. Mutation Tree Reconstruction of Tumor Cells on FPGAs Using a Bit-Level Matrix Representation. In: Proceedings of the 13th International Symposium on Highly Efficient Accelerators and Reconfigurable Technologies. ACM; 2023. doi:10.1145/3597031.3597050"},"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"status":"public","title":"Mutation Tree Reconstruction of Tumor Cells on FPGAs Using a Bit-Level Matrix Representation","_id":"46190","author":[{"full_name":"Opdenhövel, Jan-Oliver","first_name":"Jan-Oliver","last_name":"Opdenhövel"},{"orcid":"0000-0001-5728-9982","first_name":"Christian","last_name":"Plessl","id":"16153","full_name":"Plessl, Christian"},{"last_name":"Kenter","first_name":"Tobias","full_name":"Kenter, Tobias","id":"3145"}],"main_file_link":[{"url":"https://dl.acm.org/doi/pdf/10.1145/3597031.3597050","open_access":"1"}]},{"_id":"46188","author":[{"last_name":"Faj","first_name":"Jennifer","full_name":"Faj, Jennifer","id":"78722"},{"last_name":"Kenter","first_name":"Tobias","full_name":"Kenter, Tobias","id":"3145"},{"last_name":"Faghih-Naini","first_name":"Sara","full_name":"Faghih-Naini, Sara"},{"id":"16153","full_name":"Plessl, Christian","orcid":"0000-0001-5728-9982","first_name":"Christian","last_name":"Plessl"},{"full_name":"Aizinger, Vadym","first_name":"Vadym","last_name":"Aizinger"}],"main_file_link":[{"url":"https://dl.acm.org/doi/pdf/10.1145/3592979.3593407","open_access":"1"}],"status":"public","title":"Scalable Multi-FPGA Design of a Discontinuous Galerkin Shallow-Water Model on Unstructured Meshes","publication":"Proceedings of the Platform for Advanced Scientific Computing Conference","type":"conference","publication_status":"published","date_created":"2023-07-28T09:42:14Z","user_id":"3145","citation":{"bibtex":"@inproceedings{Faj_Kenter_Faghih-Naini_Plessl_Aizinger_2023, title={Scalable Multi-FPGA Design of a Discontinuous Galerkin Shallow-Water Model on Unstructured Meshes}, DOI={10.1145/3592979.3593407}, booktitle={Proceedings of the Platform for Advanced Scientific Computing Conference}, publisher={ACM}, author={Faj, Jennifer and Kenter, Tobias and Faghih-Naini, Sara and Plessl, Christian and Aizinger, Vadym}, year={2023} }","short":"J. Faj, T. Kenter, S. Faghih-Naini, C. Plessl, V. Aizinger, in: Proceedings of the Platform for Advanced Scientific Computing Conference, ACM, 2023.","apa":"Faj, J., Kenter, T., Faghih-Naini, S., Plessl, C., & Aizinger, V. (2023). Scalable Multi-FPGA Design of a Discontinuous Galerkin Shallow-Water Model on Unstructured Meshes. Proceedings of the Platform for Advanced Scientific Computing Conference. https://doi.org/10.1145/3592979.3593407","mla":"Faj, Jennifer, et al. “Scalable Multi-FPGA Design of a Discontinuous Galerkin Shallow-Water Model on Unstructured Meshes.” Proceedings of the Platform for Advanced Scientific Computing Conference, ACM, 2023, doi:10.1145/3592979.3593407.","ama":"Faj J, Kenter T, Faghih-Naini S, Plessl C, Aizinger V. Scalable Multi-FPGA Design of a Discontinuous Galerkin Shallow-Water Model on Unstructured Meshes. In: Proceedings of the Platform for Advanced Scientific Computing Conference. ACM; 2023. doi:10.1145/3592979.3593407","chicago":"Faj, Jennifer, Tobias Kenter, Sara Faghih-Naini, Christian Plessl, and Vadym Aizinger. “Scalable Multi-FPGA Design of a Discontinuous Galerkin Shallow-Water Model on Unstructured Meshes.” In Proceedings of the Platform for Advanced Scientific Computing Conference. ACM, 2023. https://doi.org/10.1145/3592979.3593407.","ieee":"J. Faj, T. Kenter, S. Faghih-Naini, C. Plessl, and V. Aizinger, “Scalable Multi-FPGA Design of a Discontinuous Galerkin Shallow-Water Model on Unstructured Meshes,” 2023, doi: 10.1145/3592979.3593407."},"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"oa":"1","language":[{"iso":"eng"}],"department":[{"_id":"27"},{"_id":"518"}],"publisher":"ACM","doi":"10.1145/3592979.3593407","date_updated":"2023-07-28T09:48:19Z","quality_controlled":"1","year":"2023"},{"publication_status":"published","publication":"International Conference on High Performance Computing in Asia-Pacific Region","type":"conference","language":[{"iso":"eng"}],"oa":"1","department":[{"_id":"27"},{"_id":"518"}],"date_created":"2023-07-28T11:51:55Z","user_id":"3145","project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"apa":"Karp, M., Podobas, A., Kenter, T., Jansson, N., Plessl, C., Schlatter, P., & Markidis, S. (2022). A High-Fidelity Flow Solver for Unstructured Meshes on Field-Programmable Gate Arrays: Design, Evaluation, and Future Challenges. International Conference on High Performance Computing in Asia-Pacific Region. https://doi.org/10.1145/3492805.3492808","short":"M. Karp, A. Podobas, T. Kenter, N. Jansson, C. Plessl, P. Schlatter, S. Markidis, in: International Conference on High Performance Computing in Asia-Pacific Region, ACM, 2022.","chicago":"Karp, Martin, Artur Podobas, Tobias Kenter, Niclas Jansson, Christian Plessl, Philipp Schlatter, and Stefano Markidis. “A High-Fidelity Flow Solver for Unstructured Meshes on Field-Programmable Gate Arrays: Design, Evaluation, and Future Challenges.” In International Conference on High Performance Computing in Asia-Pacific Region. ACM, 2022. https://doi.org/10.1145/3492805.3492808.","ama":"Karp M, Podobas A, Kenter T, et al. A High-Fidelity Flow Solver for Unstructured Meshes on Field-Programmable Gate Arrays: Design, Evaluation, and Future Challenges. In: International Conference on High Performance Computing in Asia-Pacific Region. ACM; 2022. doi:10.1145/3492805.3492808","ieee":"M. Karp et al., “A High-Fidelity Flow Solver for Unstructured Meshes on Field-Programmable Gate Arrays: Design, Evaluation, and Future Challenges,” 2022, doi: 10.1145/3492805.3492808.","mla":"Karp, Martin, et al. “A High-Fidelity Flow Solver for Unstructured Meshes on Field-Programmable Gate Arrays: Design, Evaluation, and Future Challenges.” International Conference on High Performance Computing in Asia-Pacific Region, ACM, 2022, doi:10.1145/3492805.3492808.","bibtex":"@inproceedings{Karp_Podobas_Kenter_Jansson_Plessl_Schlatter_Markidis_2022, title={A High-Fidelity Flow Solver for Unstructured Meshes on Field-Programmable Gate Arrays: Design, Evaluation, and Future Challenges}, DOI={10.1145/3492805.3492808}, booktitle={International Conference on High Performance Computing in Asia-Pacific Region}, publisher={ACM}, author={Karp, Martin and Podobas, Artur and Kenter, Tobias and Jansson, Niclas and Plessl, Christian and Schlatter, Philipp and Markidis, Stefano}, year={2022} }"},"doi":"10.1145/3492805.3492808","date_updated":"2023-07-28T11:53:15Z","publisher":"ACM","quality_controlled":"1","year":"2022","_id":"46193","author":[{"full_name":"Karp, Martin","first_name":"Martin","last_name":"Karp"},{"full_name":"Podobas, Artur","first_name":"Artur","last_name":"Podobas"},{"last_name":"Kenter","first_name":"Tobias","full_name":"Kenter, Tobias","id":"3145"},{"first_name":"Niclas","last_name":"Jansson","full_name":"Jansson, Niclas"},{"orcid":"0000-0001-5728-9982","first_name":"Christian","last_name":"Plessl","id":"16153","full_name":"Plessl, Christian"},{"first_name":"Philipp","last_name":"Schlatter","full_name":"Schlatter, Philipp"},{"last_name":"Markidis","first_name":"Stefano","full_name":"Markidis, Stefano"}],"main_file_link":[{"url":"https://dl.acm.org/doi/pdf/10.1145/3492805.3492808","open_access":"1"}],"status":"public","title":"A High-Fidelity Flow Solver for Unstructured Meshes on Field-Programmable Gate Arrays: Design, Evaluation, and Future Challenges"},{"status":"public","title":"Bridging HPC Communities through the Julia Programming Language","_id":"36879","main_file_link":[{"url":"https://arxiv.org/abs/2211.02740","open_access":"1"}],"author":[{"first_name":"Valentin","last_name":"Churavy","full_name":"Churavy, Valentin"},{"first_name":"William F","last_name":"Godoy","full_name":"Godoy, William F"},{"first_name":"Carsten","last_name":"Bauer","id":"90082","full_name":"Bauer, Carsten"},{"full_name":"Ranocha, Hendrik","first_name":"Hendrik","last_name":"Ranocha"},{"full_name":"Schlottke-Lakemper, Michael","last_name":"Schlottke-Lakemper","first_name":"Michael"},{"first_name":"Ludovic","last_name":"Räss","full_name":"Räss, Ludovic"},{"first_name":"Johannes","last_name":"Blaschke","full_name":"Blaschke, Johannes"},{"full_name":"Giordano, Mosè","last_name":"Giordano","first_name":"Mosè"},{"first_name":"Erik","last_name":"Schnetter","full_name":"Schnetter, Erik"},{"last_name":"Omlin","first_name":"Samuel","full_name":"Omlin, Samuel"},{"full_name":"Vetter, Jeffrey S","last_name":"Vetter","first_name":"Jeffrey S"},{"full_name":"Edelman, Alan","first_name":"Alan","last_name":"Edelman"}],"date_updated":"2023-01-16T09:16:20Z","year":"2022","type":"preprint","language":[{"iso":"eng"}],"abstract":[{"text":"The Julia programming language has evolved into a modern alternative to fill existing gaps in scientific computing and data science applications. Julia leverages a unified and coordinated single-language and ecosystem paradigm and has a proven track record of achieving high performance without sacrificing user productivity. These aspects make Julia a viable alternative to high-performance computing's (HPC's) existing and increasingly costly many-body workflow composition strategy in which traditional HPC languages (e.g., Fortran, C, C++) are used for simulations, and higher-level languages (e.g., Python, R, MATLAB) are used for data analysis and interactive computing. Julia's rapid growth in language capabilities, package ecosystem, and community make it a promising universal language for HPC. This paper presents the views of a multidisciplinary group of researchers from academia, government, and industry that advocate for an HPC software development paradigm that emphasizes developer productivity, workflow portability, and low barriers for entry. We believe that the Julia programming language, its ecosystem, and its community provide modern and powerful capabilities that enable this group's objectives. Crucially, we believe that Julia can provide a feasible and less costly approach to programming scientific applications and workflows that target HPC facilities. In this work, we examine the current practice and role of Julia as a common, end-to-end programming model to address major challenges in scientific reproducibility, data-driven AI/machine learning, co-design and workflows, scalability and performance portability in heterogeneous computing, network communication, data management, and community education. As a result, the diversification of current investments to fulfill the needs of the upcoming decade is crucial as more supercomputing centers prepare for the exascale era.","lang":"eng"}],"department":[{"_id":"27"}],"oa":"1","citation":{"apa":"Churavy, V., Godoy, W. F., Bauer, C., Ranocha, H., Schlottke-Lakemper, M., Räss, L., Blaschke, J., Giordano, M., Schnetter, E., Omlin, S., Vetter, J. S., & Edelman, A. (2022). Bridging HPC Communities through the Julia Programming Language.","bibtex":"@article{Churavy_Godoy_Bauer_Ranocha_Schlottke-Lakemper_Räss_Blaschke_Giordano_Schnetter_Omlin_et al._2022, title={Bridging HPC Communities through the Julia Programming Language}, author={Churavy, Valentin and Godoy, William F and Bauer, Carsten and Ranocha, Hendrik and Schlottke-Lakemper, Michael and Räss, Ludovic and Blaschke, Johannes and Giordano, Mosè and Schnetter, Erik and Omlin, Samuel and et al.}, year={2022} }","ieee":"V. Churavy et al., “Bridging HPC Communities through the Julia Programming Language.” 2022.","chicago":"Churavy, Valentin, William F Godoy, Carsten Bauer, Hendrik Ranocha, Michael Schlottke-Lakemper, Ludovic Räss, Johannes Blaschke, et al. “Bridging HPC Communities through the Julia Programming Language,” 2022.","ama":"Churavy V, Godoy WF, Bauer C, et al. Bridging HPC Communities through the Julia Programming Language. Published online 2022.","mla":"Churavy, Valentin, et al. Bridging HPC Communities through the Julia Programming Language. 2022.","short":"V. Churavy, W.F. Godoy, C. Bauer, H. Ranocha, M. Schlottke-Lakemper, L. Räss, J. Blaschke, M. Giordano, E. Schnetter, S. Omlin, J.S. Vetter, A. Edelman, (2022)."},"user_id":"90082","date_created":"2023-01-16T09:10:48Z"},{"_id":"32404","author":[{"first_name":"Thomas","last_name":"Kühne","full_name":"Kühne, Thomas","id":"49079"},{"first_name":"Christian","last_name":"Plessl","orcid":"0000-0001-5728-9982","full_name":"Plessl, Christian","id":"16153"},{"last_name":"Schade","first_name":"Robert","orcid":"0000-0002-6268-539","full_name":"Schade, Robert","id":"75963"},{"full_name":"Schütt, Ole","last_name":"Schütt","first_name":"Ole"}],"main_file_link":[{"url":"https://arxiv.org/abs/2205.14741"}],"status":"public","title":"CP2K on the road to exascale","publication":"arXiv:2205.14741","external_id":{"arxiv":["2205.14741"]},"type":"preprint","department":[{"_id":"27"},{"_id":"518"},{"_id":"304"}],"abstract":[{"text":"The CP2K program package, which can be considered as the swiss army knife of\r\natomistic simulations, is presented with a special emphasis on ab-initio\r\nmolecular dynamics using the second-generation Car-Parrinello method. After\r\noutlining current and near-term development efforts with regards to massively\r\nparallel low-scaling post-Hartree-Fock and eigenvalue solvers, novel approaches\r\non how we plan to take full advantage of future low-precision hardware\r\narchitectures are introduced. Our focus here is on combining our submatrix\r\nmethod with the approximate computing paradigm to address the immanent exascale\r\nera.","lang":"eng"}],"language":[{"iso":"eng"}],"user_id":"75963","date_created":"2022-07-22T08:14:08Z","citation":{"apa":"Kühne, T., Plessl, C., Schade, R., & Schütt, O. (2022). CP2K on the road to exascale. In arXiv:2205.14741.","short":"T. Kühne, C. Plessl, R. Schade, O. Schütt, ArXiv:2205.14741 (2022).","mla":"Kühne, Thomas, et al. “CP2K on the Road to Exascale.” ArXiv:2205.14741, 2022.","ama":"Kühne T, Plessl C, Schade R, Schütt O. CP2K on the road to exascale. arXiv:220514741. Published online 2022.","chicago":"Kühne, Thomas, Christian Plessl, Robert Schade, and Ole Schütt. “CP2K on the Road to Exascale.” ArXiv:2205.14741, 2022.","ieee":"T. Kühne, C. Plessl, R. Schade, and O. Schütt, “CP2K on the road to exascale,” arXiv:2205.14741. 2022.","bibtex":"@article{Kühne_Plessl_Schade_Schütt_2022, title={CP2K on the road to exascale}, journal={arXiv:2205.14741}, author={Kühne, Thomas and Plessl, Christian and Schade, Robert and Schütt, Ole}, year={2022} }"},"project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"date_updated":"2023-08-02T14:55:35Z","year":"2022"},{"title":"Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers","status":"public","author":[{"full_name":"Borghini, Nicolas","last_name":"Borghini","first_name":"Nicolas"},{"full_name":"Borrell, Marc","last_name":"Borrell","first_name":"Marc"},{"first_name":"Hendrik","last_name":"Roch","full_name":"Roch, Hendrik"}],"_id":"32177","year":"2022","date_updated":"2022-06-27T09:35:53Z","abstract":[{"text":"We investigate the early time development of the anisotropic transverse flow\r\nand spatial eccentricities of a fireball with various particle-based transport\r\napproaches using a fixed initial condition. In numerical simulations ranging\r\nfrom the quasi-collisionless case to the hydrodynamic regime, we find that the\r\nonset of $v_n$ and of related measures of anisotropic flow can be described\r\nwith a simple power-law ansatz, with an exponent that depends on the amount of\r\nrescatterings in the system. In the few-rescatterings regime we perform\r\nsemi-analytical calculations, based on a systematic expansion in powers of time\r\nand the cross section, which can reproduce the numerical findings.","lang":"eng"}],"language":[{"iso":"eng"}],"department":[{"_id":"27"}],"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"short":"N. Borghini, M. Borrell, H. Roch, ArXiv:2201.13294 (2022).","apa":"Borghini, N., Borrell, M., & Roch, H. (2022). Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers. In arXiv:2201.13294.","mla":"Borghini, Nicolas, et al. “Early Time Behavior of Spatial and Momentum Anisotropies in Kinetic Theory across Different Knudsen Numbers.” ArXiv:2201.13294, 2022.","ieee":"N. Borghini, M. Borrell, and H. Roch, “Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers,” arXiv:2201.13294. 2022.","ama":"Borghini N, Borrell M, Roch H. Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers. arXiv:220113294. Published online 2022.","chicago":"Borghini, Nicolas, Marc Borrell, and Hendrik Roch. “Early Time Behavior of Spatial and Momentum Anisotropies in Kinetic Theory across Different Knudsen Numbers.” ArXiv:2201.13294, 2022.","bibtex":"@article{Borghini_Borrell_Roch_2022, title={Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers}, journal={arXiv:2201.13294}, author={Borghini, Nicolas and Borrell, Marc and Roch, Hendrik}, year={2022} }"},"date_created":"2022-06-27T09:08:04Z","user_id":"67287","external_id":{"arxiv":["2201.13294"]},"type":"preprint","publication":"arXiv:2201.13294"},{"year":"2022","date_updated":"2022-06-27T09:35:34Z","language":[{"iso":"eng"}],"abstract":[{"text":"We test the ability of the \"escape mechanism\" to create the anisotropic flow\r\nobserved in high-energy nuclear collisions. We compare the flow harmonics $v_n$\r\nin the few-rescatterings regime from two types of transport simulations, with\r\n$2\\to 2$ and $2\\to 0$ collision kernels respectively, and from analytical\r\ncalculations neglecting the gain term of the Boltzmann equation. We find that\r\nthe even flow harmonics are similar in the three approaches, while the odd\r\nharmonics differ significantly.","lang":"eng"}],"department":[{"_id":"27"}],"citation":{"bibtex":"@article{Bachmann_Borghini_Feld_Roch_2022, title={Even anisotropic-flow harmonics are from Venus, odd ones are from Mars}, journal={arXiv:2203.13306}, author={Bachmann, Benedikt and Borghini, Nicolas and Feld, Nina and Roch, Hendrik}, year={2022} }","short":"B. Bachmann, N. Borghini, N. Feld, H. Roch, ArXiv:2203.13306 (2022).","ama":"Bachmann B, Borghini N, Feld N, Roch H. Even anisotropic-flow harmonics are from Venus, odd ones are from Mars. arXiv:220313306. Published online 2022.","ieee":"B. Bachmann, N. Borghini, N. Feld, and H. Roch, “Even anisotropic-flow harmonics are from Venus, odd ones are from Mars,” arXiv:2203.13306. 2022.","chicago":"Bachmann, Benedikt, Nicolas Borghini, Nina Feld, and Hendrik Roch. “Even Anisotropic-Flow Harmonics Are from Venus, Odd Ones Are from Mars.” ArXiv:2203.13306, 2022.","mla":"Bachmann, Benedikt, et al. “Even Anisotropic-Flow Harmonics Are from Venus, Odd Ones Are from Mars.” ArXiv:2203.13306, 2022.","apa":"Bachmann, B., Borghini, N., Feld, N., & Roch, H. (2022). Even anisotropic-flow harmonics are from Venus, odd ones are from Mars. In arXiv:2203.13306."},"project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"user_id":"67287","date_created":"2022-06-27T09:12:26Z","type":"preprint","external_id":{"arxiv":["2203.13306"]},"publication":"arXiv:2203.13306","title":"Even anisotropic-flow harmonics are from Venus, odd ones are from Mars","status":"public","author":[{"full_name":"Bachmann, Benedikt","last_name":"Bachmann","first_name":"Benedikt"},{"last_name":"Borghini","first_name":"Nicolas","full_name":"Borghini, Nicolas"},{"last_name":"Feld","first_name":"Nina","full_name":"Feld, Nina"},{"full_name":"Roch, Hendrik","first_name":"Hendrik","last_name":"Roch"}],"_id":"32178"},{"title":"Roadmap on Electronic Structure Codes in the Exascale Era","status":"public","author":[{"last_name":"Gavini","first_name":"Vikram","full_name":"Gavini, Vikram"},{"full_name":"Baroni, Stefano","last_name":"Baroni","first_name":"Stefano"},{"full_name":"Blum, Volker","last_name":"Blum","first_name":"Volker"},{"first_name":"David R.","last_name":"Bowler","full_name":"Bowler, David R."},{"full_name":"Buccheri, Alexander","last_name":"Buccheri","first_name":"Alexander"},{"full_name":"Chelikowsky, James R.","first_name":"James R.","last_name":"Chelikowsky"},{"last_name":"Das","first_name":"Sambit","full_name":"Das, Sambit"},{"full_name":"Dawson, William","first_name":"William","last_name":"Dawson"},{"first_name":"Pietro","last_name":"Delugas","full_name":"Delugas, Pietro"},{"full_name":"Dogan, Mehmet","first_name":"Mehmet","last_name":"Dogan"},{"full_name":"Draxl, Claudia","last_name":"Draxl","first_name":"Claudia"},{"full_name":"Galli, Giulia","first_name":"Giulia","last_name":"Galli"},{"full_name":"Genovese, Luigi","last_name":"Genovese","first_name":"Luigi"},{"last_name":"Giannozzi","first_name":"Paolo","full_name":"Giannozzi, Paolo"},{"full_name":"Giantomassi, Matteo","first_name":"Matteo","last_name":"Giantomassi"},{"full_name":"Gonze, Xavier","first_name":"Xavier","last_name":"Gonze"},{"last_name":"Govoni","first_name":"Marco","full_name":"Govoni, Marco"},{"first_name":"Andris","last_name":"Gulans","full_name":"Gulans, Andris"},{"full_name":"Gygi, François","first_name":"François","last_name":"Gygi"},{"last_name":"Herbert","first_name":"John M.","full_name":"Herbert, John M."},{"last_name":"Kokott","first_name":"Sebastian","full_name":"Kokott, Sebastian"},{"full_name":"Kühne, Thomas","id":"49079","last_name":"Kühne","first_name":"Thomas"},{"full_name":"Liou, Kai-Hsin","last_name":"Liou","first_name":"Kai-Hsin"},{"full_name":"Miyazaki, Tsuyoshi","last_name":"Miyazaki","first_name":"Tsuyoshi"},{"last_name":"Motamarri","first_name":"Phani","full_name":"Motamarri, Phani"},{"last_name":"Nakata","first_name":"Ayako","full_name":"Nakata, Ayako"},{"full_name":"Pask, John E.","first_name":"John E.","last_name":"Pask"},{"first_name":"Christian","last_name":"Plessl","orcid":"0000-0001-5728-9982","full_name":"Plessl, Christian","id":"16153"},{"full_name":"Ratcliff, Laura E.","first_name":"Laura E.","last_name":"Ratcliff"},{"full_name":"Richard, Ryan M.","first_name":"Ryan M.","last_name":"Richard"},{"full_name":"Rossi, Mariana","last_name":"Rossi","first_name":"Mariana"},{"id":"75963","full_name":"Schade, Robert","orcid":"0000-0002-6268-539","last_name":"Schade","first_name":"Robert"},{"last_name":"Scheffler","first_name":"Matthias","full_name":"Scheffler, Matthias"},{"first_name":"Ole","last_name":"Schütt","full_name":"Schütt, Ole"},{"first_name":"Phanish","last_name":"Suryanarayana","full_name":"Suryanarayana, Phanish"},{"full_name":"Torrent, Marc","last_name":"Torrent","first_name":"Marc"},{"full_name":"Truflandier, Lionel","first_name":"Lionel","last_name":"Truflandier"},{"full_name":"Windus, Theresa L.","first_name":"Theresa L.","last_name":"Windus"},{"full_name":"Xu, Qimen","first_name":"Qimen","last_name":"Xu"},{"last_name":"Yu","first_name":"Victor W. -Z.","full_name":"Yu, Victor W. -Z."},{"full_name":"Perez, Danny","last_name":"Perez","first_name":"Danny"}],"_id":"33493","year":"2022","date_updated":"2023-07-28T08:03:41Z","project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"bibtex":"@article{Gavini_Baroni_Blum_Bowler_Buccheri_Chelikowsky_Das_Dawson_Delugas_Dogan_et al._2022, title={Roadmap on Electronic Structure Codes in the Exascale Era}, journal={arXiv:2209.12747}, author={Gavini, Vikram and Baroni, Stefano and Blum, Volker and Bowler, David R. and Buccheri, Alexander and Chelikowsky, James R. and Das, Sambit and Dawson, William and Delugas, Pietro and Dogan, Mehmet and et al.}, year={2022} }","chicago":"Gavini, Vikram, Stefano Baroni, Volker Blum, David R. Bowler, Alexander Buccheri, James R. Chelikowsky, Sambit Das, et al. “Roadmap on Electronic Structure Codes in the Exascale Era.” ArXiv:2209.12747, 2022.","ieee":"V. Gavini et al., “Roadmap on Electronic Structure Codes in the Exascale Era,” arXiv:2209.12747. 2022.","ama":"Gavini V, Baroni S, Blum V, et al. Roadmap on Electronic Structure Codes in the Exascale Era. arXiv:220912747. Published online 2022.","mla":"Gavini, Vikram, et al. “Roadmap on Electronic Structure Codes in the Exascale Era.” ArXiv:2209.12747, 2022.","apa":"Gavini, V., Baroni, S., Blum, V., Bowler, D. R., Buccheri, A., Chelikowsky, J. R., Das, S., Dawson, W., Delugas, P., Dogan, M., Draxl, C., Galli, G., Genovese, L., Giannozzi, P., Giantomassi, M., Gonze, X., Govoni, M., Gulans, A., Gygi, F., … Perez, D. (2022). Roadmap on Electronic Structure Codes in the Exascale Era. In arXiv:2209.12747.","short":"V. Gavini, S. Baroni, V. Blum, D.R. Bowler, A. Buccheri, J.R. Chelikowsky, S. Das, W. Dawson, P. Delugas, M. Dogan, C. Draxl, G. Galli, L. Genovese, P. Giannozzi, M. Giantomassi, X. Gonze, M. Govoni, A. Gulans, F. Gygi, J.M. Herbert, S. Kokott, T. Kühne, K.-H. Liou, T. Miyazaki, P. Motamarri, A. Nakata, J.E. Pask, C. Plessl, L.E. Ratcliff, R.M. Richard, M. Rossi, R. Schade, M. Scheffler, O. Schütt, P. Suryanarayana, M. Torrent, L. Truflandier, T.L. Windus, Q. Xu, V.W.-Z. Yu, D. Perez, ArXiv:2209.12747 (2022)."},"date_created":"2022-09-28T05:25:10Z","user_id":"24135","abstract":[{"lang":"eng","text":"Electronic structure calculations have been instrumental in providing many\r\nimportant insights into a range of physical and chemical properties of various\r\nmolecular and solid-state systems. Their importance to various fields,\r\nincluding materials science, chemical sciences, computational chemistry and\r\ndevice physics, is underscored by the large fraction of available public\r\nsupercomputing resources devoted to these calculations. As we enter the\r\nexascale era, exciting new opportunities to increase simulation numbers, sizes,\r\nand accuracies present themselves. In order to realize these promises, the\r\ncommunity of electronic structure software developers will however first have\r\nto tackle a number of challenges pertaining to the efficient use of new\r\narchitectures that will rely heavily on massive parallelism and hardware\r\naccelerators. This roadmap provides a broad overview of the state-of-the-art in\r\nelectronic structure calculations and of the various new directions being\r\npursued by the community. It covers 14 electronic structure codes, presenting\r\ntheir current status, their development priorities over the next five years,\r\nand their plans towards tackling the challenges and leveraging the\r\nopportunities presented by the advent of exascale computing."}],"language":[{"iso":"eng"}],"department":[{"_id":"27"},{"_id":"518"}],"type":"preprint","external_id":{"arxiv":["2209.12747"]},"publication":"arXiv:2209.12747"},{"title":"Roadmap on Electronic Structure Codes in the Exascale Era","status":"public","author":[{"full_name":"Gavini, Vikram","first_name":"Vikram","last_name":"Gavini"},{"full_name":"Baroni, Stefano","last_name":"Baroni","first_name":"Stefano"},{"first_name":"Volker","last_name":"Blum","full_name":"Blum, Volker"},{"full_name":"Bowler, David R.","last_name":"Bowler","first_name":"David R."},{"last_name":"Buccheri","first_name":"Alexander","full_name":"Buccheri, Alexander"},{"full_name":"Chelikowsky, James R.","first_name":"James R.","last_name":"Chelikowsky"},{"full_name":"Das, Sambit","first_name":"Sambit","last_name":"Das"},{"full_name":"Dawson, William","first_name":"William","last_name":"Dawson"},{"first_name":"Pietro","last_name":"Delugas","full_name":"Delugas, Pietro"},{"first_name":"Mehmet","last_name":"Dogan","full_name":"Dogan, Mehmet"},{"last_name":"Draxl","first_name":"Claudia","full_name":"Draxl, Claudia"},{"full_name":"Galli, Giulia","last_name":"Galli","first_name":"Giulia"},{"first_name":"Luigi","last_name":"Genovese","full_name":"Genovese, Luigi"},{"full_name":"Giannozzi, Paolo","first_name":"Paolo","last_name":"Giannozzi"},{"full_name":"Giantomassi, Matteo","first_name":"Matteo","last_name":"Giantomassi"},{"full_name":"Gonze, Xavier","first_name":"Xavier","last_name":"Gonze"},{"full_name":"Govoni, Marco","first_name":"Marco","last_name":"Govoni"},{"full_name":"Gulans, Andris","first_name":"Andris","last_name":"Gulans"},{"last_name":"Gygi","first_name":"François","full_name":"Gygi, François"},{"last_name":"Herbert","first_name":"John M.","full_name":"Herbert, John M."},{"full_name":"Kokott, Sebastian","first_name":"Sebastian","last_name":"Kokott"},{"id":"49079","full_name":"Kühne, Thomas","last_name":"Kühne","first_name":"Thomas"},{"full_name":"Liou, Kai-Hsin","first_name":"Kai-Hsin","last_name":"Liou"},{"first_name":"Tsuyoshi","last_name":"Miyazaki","full_name":"Miyazaki, Tsuyoshi"},{"last_name":"Motamarri","first_name":"Phani","full_name":"Motamarri, Phani"},{"full_name":"Nakata, Ayako","last_name":"Nakata","first_name":"Ayako"},{"full_name":"Pask, John E.","last_name":"Pask","first_name":"John E."},{"last_name":"Plessl","first_name":"Christian","orcid":"0000-0001-5728-9982","full_name":"Plessl, Christian","id":"16153"},{"last_name":"Ratcliff","first_name":"Laura E.","full_name":"Ratcliff, Laura E."},{"last_name":"Richard","first_name":"Ryan M.","full_name":"Richard, Ryan M."},{"full_name":"Rossi, Mariana","last_name":"Rossi","first_name":"Mariana"},{"first_name":"Robert","last_name":"Schade","orcid":"0000-0002-6268-539","full_name":"Schade, Robert","id":"75963"},{"full_name":"Scheffler, Matthias","first_name":"Matthias","last_name":"Scheffler"},{"last_name":"Schütt","first_name":"Ole","full_name":"Schütt, Ole"},{"full_name":"Suryanarayana, Phanish","first_name":"Phanish","last_name":"Suryanarayana"},{"first_name":"Marc","last_name":"Torrent","full_name":"Torrent, Marc"},{"last_name":"Truflandier","first_name":"Lionel","full_name":"Truflandier, Lionel"},{"full_name":"Windus, Theresa L.","first_name":"Theresa L.","last_name":"Windus"},{"full_name":"Xu, Qimen","last_name":"Xu","first_name":"Qimen"},{"full_name":"Yu, Victor W. -Z.","last_name":"Yu","first_name":"Victor W. -Z."},{"full_name":"Perez, Danny","first_name":"Danny","last_name":"Perez"}],"_id":"46275","year":"2022","date_updated":"2023-08-02T15:00:47Z","abstract":[{"text":"Electronic structure calculations have been instrumental in providing many\r\nimportant insights into a range of physical and chemical properties of various\r\nmolecular and solid-state systems. Their importance to various fields,\r\nincluding materials science, chemical sciences, computational chemistry and\r\ndevice physics, is underscored by the large fraction of available public\r\nsupercomputing resources devoted to these calculations. As we enter the\r\nexascale era, exciting new opportunities to increase simulation numbers, sizes,\r\nand accuracies present themselves. In order to realize these promises, the\r\ncommunity of electronic structure software developers will however first have\r\nto tackle a number of challenges pertaining to the efficient use of new\r\narchitectures that will rely heavily on massive parallelism and hardware\r\naccelerators. This roadmap provides a broad overview of the state-of-the-art in\r\nelectronic structure calculations and of the various new directions being\r\npursued by the community. It covers 14 electronic structure codes, presenting\r\ntheir current status, their development priorities over the next five years,\r\nand their plans towards tackling the challenges and leveraging the\r\nopportunities presented by the advent of exascale computing.","lang":"eng"}],"department":[{"_id":"27"}],"language":[{"iso":"eng"}],"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"citation":{"apa":"Gavini, V., Baroni, S., Blum, V., Bowler, D. R., Buccheri, A., Chelikowsky, J. R., Das, S., Dawson, W., Delugas, P., Dogan, M., Draxl, C., Galli, G., Genovese, L., Giannozzi, P., Giantomassi, M., Gonze, X., Govoni, M., Gulans, A., Gygi, F., … Perez, D. (2022). Roadmap on Electronic Structure Codes in the Exascale Era. In arXiv:2209.12747.","short":"V. Gavini, S. Baroni, V. Blum, D.R. Bowler, A. Buccheri, J.R. Chelikowsky, S. Das, W. Dawson, P. Delugas, M. Dogan, C. Draxl, G. Galli, L. Genovese, P. Giannozzi, M. Giantomassi, X. Gonze, M. Govoni, A. Gulans, F. Gygi, J.M. Herbert, S. Kokott, T. Kühne, K.-H. Liou, T. Miyazaki, P. Motamarri, A. Nakata, J.E. Pask, C. Plessl, L.E. Ratcliff, R.M. Richard, M. Rossi, R. Schade, M. Scheffler, O. Schütt, P. Suryanarayana, M. Torrent, L. Truflandier, T.L. Windus, Q. Xu, V.W.-Z. Yu, D. Perez, ArXiv:2209.12747 (2022).","chicago":"Gavini, Vikram, Stefano Baroni, Volker Blum, David R. Bowler, Alexander Buccheri, James R. Chelikowsky, Sambit Das, et al. “Roadmap on Electronic Structure Codes in the Exascale Era.” ArXiv:2209.12747, 2022.","ama":"Gavini V, Baroni S, Blum V, et al. Roadmap on Electronic Structure Codes in the Exascale Era. arXiv:220912747. Published online 2022.","ieee":"V. Gavini et al., “Roadmap on Electronic Structure Codes in the Exascale Era,” arXiv:2209.12747. 2022.","mla":"Gavini, Vikram, et al. “Roadmap on Electronic Structure Codes in the Exascale Era.” ArXiv:2209.12747, 2022.","bibtex":"@article{Gavini_Baroni_Blum_Bowler_Buccheri_Chelikowsky_Das_Dawson_Delugas_Dogan_et al._2022, title={Roadmap on Electronic Structure Codes in the Exascale Era}, journal={arXiv:2209.12747}, author={Gavini, Vikram and Baroni, Stefano and Blum, Volker and Bowler, David R. and Buccheri, Alexander and Chelikowsky, James R. and Das, Sambit and Dawson, William and Delugas, Pietro and Dogan, Mehmet and et al.}, year={2022} }"},"user_id":"75963","date_created":"2023-08-02T14:59:18Z","type":"preprint","external_id":{"arxiv":["2209.12747"]},"publication":"arXiv:2209.12747"},{"year":"2021","quality_controlled":"1","publisher":"ACM","doi":"10.1145/3468267.3470617","date_updated":"2023-07-28T12:03:19Z","citation":{"bibtex":"@inproceedings{Kenter_Shambhu_Faghih-Naini_Aizinger_2021, title={Algorithm-hardware co-design of a discontinuous Galerkin shallow-water model for a dataflow architecture on FPGA}, DOI={10.1145/3468267.3470617}, booktitle={Proceedings of the Platform for Advanced Scientific Computing Conference}, publisher={ACM}, author={Kenter, Tobias and Shambhu, Adesh and Faghih-Naini, Sara and Aizinger, Vadym}, year={2021} }","short":"T. Kenter, A. Shambhu, S. Faghih-Naini, V. Aizinger, in: Proceedings of the Platform for Advanced Scientific Computing Conference, ACM, 2021.","apa":"Kenter, T., Shambhu, A., Faghih-Naini, S., & Aizinger, V. (2021). Algorithm-hardware co-design of a discontinuous Galerkin shallow-water model for a dataflow architecture on FPGA. Proceedings of the Platform for Advanced Scientific Computing Conference. https://doi.org/10.1145/3468267.3470617","mla":"Kenter, Tobias, et al. “Algorithm-Hardware Co-Design of a Discontinuous Galerkin Shallow-Water Model for a Dataflow Architecture on FPGA.” Proceedings of the Platform for Advanced Scientific Computing Conference, ACM, 2021, doi:10.1145/3468267.3470617.","ama":"Kenter T, Shambhu A, Faghih-Naini S, Aizinger V. Algorithm-hardware co-design of a discontinuous Galerkin shallow-water model for a dataflow architecture on FPGA. In: Proceedings of the Platform for Advanced Scientific Computing Conference. ACM; 2021. doi:10.1145/3468267.3470617","ieee":"T. Kenter, A. Shambhu, S. Faghih-Naini, and V. Aizinger, “Algorithm-hardware co-design of a discontinuous Galerkin shallow-water model for a dataflow architecture on FPGA,” 2021, doi: 10.1145/3468267.3470617.","chicago":"Kenter, Tobias, Adesh Shambhu, Sara Faghih-Naini, and Vadym Aizinger. “Algorithm-Hardware Co-Design of a Discontinuous Galerkin Shallow-Water Model for a Dataflow Architecture on FPGA.” In Proceedings of the Platform for Advanced Scientific Computing Conference. ACM, 2021. https://doi.org/10.1145/3468267.3470617."},"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"user_id":"3145","date_created":"2023-07-28T11:58:14Z","department":[{"_id":"27"},{"_id":"518"}],"language":[{"iso":"eng"}],"oa":"1","type":"conference","publication":"Proceedings of the Platform for Advanced Scientific Computing Conference","publication_status":"published","title":"Algorithm-hardware co-design of a discontinuous Galerkin shallow-water model for a dataflow architecture on FPGA","status":"public","main_file_link":[{"open_access":"1","url":"https://dl.acm.org/doi/pdf/10.1145/3468267.3470617"}],"author":[{"full_name":"Kenter, Tobias","id":"3145","last_name":"Kenter","first_name":"Tobias"},{"full_name":"Shambhu, Adesh","last_name":"Shambhu","first_name":"Adesh"},{"first_name":"Sara","last_name":"Faghih-Naini","full_name":"Faghih-Naini, Sara"},{"last_name":"Aizinger","first_name":"Vadym","full_name":"Aizinger, Vadym"}],"_id":"46194"},{"date_created":"2021-01-07T15:32:45Z","user_id":"27340","citation":{"apa":"Nickchen, T., Heindorf, S., & Engels, G. (2021). Generating Physically Sound Training Data for Image Recognition of Additively Manufactured Parts. In Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision (pp. 1994–2002). Hawaii.","bibtex":"@inproceedings{Nickchen_Heindorf_Engels_2021, title={Generating Physically Sound Training Data for Image Recognition of Additively Manufactured Parts}, booktitle={Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision}, author={Nickchen, Tobias and Heindorf, Stefan and Engels, Gregor}, year={2021}, pages={1994–2002} }","ama":"Nickchen T, Heindorf S, Engels G. Generating Physically Sound Training Data for Image Recognition of Additively Manufactured Parts. In: Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision. ; 2021:1994-2002.","ieee":"T. Nickchen, S. Heindorf, and G. Engels, “Generating Physically Sound Training Data for Image Recognition of Additively Manufactured Parts,” in Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision, Hawaii, 2021, pp. 1994–2002.","chicago":"Nickchen, Tobias, Stefan Heindorf, and Gregor Engels. “Generating Physically Sound Training Data for Image Recognition of Additively Manufactured Parts.” In Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision, 1994–2002, 2021.","mla":"Nickchen, Tobias, et al. “Generating Physically Sound Training Data for Image Recognition of Additively Manufactured Parts.” Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision, 2021, pp. 1994–2002.","short":"T. Nickchen, S. Heindorf, G. Engels, in: Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision, 2021, pp. 1994–2002."},"department":[{"_id":"66"},{"_id":"534"},{"_id":"624"},{"_id":"219"},{"_id":"27"}],"language":[{"iso":"eng"}],"publication":"Proceedings of the IEEE/CVF Winter Conference on Applications of Computer Vision","type":"conference","publication_status":"published","year":"2021","date_updated":"2022-01-06T06:54:41Z","conference":{"end_date":"2021-09-01","start_date":"2021-05-01","name":"IEEE/CVF Winter Conference on Applications of Computer Vision","location":"Hawaii"},"page":"1994-2002","author":[{"full_name":"Nickchen, Tobias","last_name":"Nickchen","first_name":"Tobias"},{"full_name":"Heindorf, Stefan","first_name":"Stefan","last_name":"Heindorf"},{"full_name":"Engels, Gregor","first_name":"Gregor","last_name":"Engels"}],"_id":"20886","title":"Generating Physically Sound Training Data for Image Recognition of Additively Manufactured Parts","status":"public"},{"_id":"46195","author":[{"last_name":"Karp","first_name":"Martin","full_name":"Karp, Martin"},{"first_name":"Artur","last_name":"Podobas","full_name":"Podobas, Artur"},{"full_name":"Jansson, Niclas","first_name":"Niclas","last_name":"Jansson"},{"first_name":"Tobias","last_name":"Kenter","id":"3145","full_name":"Kenter, Tobias"},{"orcid":"0000-0001-5728-9982","first_name":"Christian","last_name":"Plessl","id":"16153","full_name":"Plessl, Christian"},{"full_name":"Schlatter, Philipp","last_name":"Schlatter","first_name":"Philipp"},{"first_name":"Stefano","last_name":"Markidis","full_name":"Markidis, Stefano"}],"status":"public","title":"High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection","type":"conference","publication":"2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS)","publication_status":"published","citation":{"short":"M. Karp, A. Podobas, N. Jansson, T. Kenter, C. Plessl, P. Schlatter, S. Markidis, in: 2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS), IEEE, 2021.","apa":"Karp, M., Podobas, A., Jansson, N., Kenter, T., Plessl, C., Schlatter, P., & Markidis, S. (2021). High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection. 2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS). https://doi.org/10.1109/ipdps49936.2021.00116","mla":"Karp, Martin, et al. “High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection.” 2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS), IEEE, 2021, doi:10.1109/ipdps49936.2021.00116.","ama":"Karp M, Podobas A, Jansson N, et al. High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection. In: 2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS). IEEE; 2021. doi:10.1109/ipdps49936.2021.00116","chicago":"Karp, Martin, Artur Podobas, Niclas Jansson, Tobias Kenter, Christian Plessl, Philipp Schlatter, and Stefano Markidis. “High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection.” In 2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS). IEEE, 2021. https://doi.org/10.1109/ipdps49936.2021.00116.","ieee":"M. Karp et al., “High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection,” 2021, doi: 10.1109/ipdps49936.2021.00116.","bibtex":"@inproceedings{Karp_Podobas_Jansson_Kenter_Plessl_Schlatter_Markidis_2021, title={High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection}, DOI={10.1109/ipdps49936.2021.00116}, booktitle={2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS)}, publisher={IEEE}, author={Karp, Martin and Podobas, Artur and Jansson, Niclas and Kenter, Tobias and Plessl, Christian and Schlatter, Philipp and Markidis, Stefano}, year={2021} }"},"user_id":"3145","date_created":"2023-07-28T12:04:27Z","department":[{"_id":"27"},{"_id":"518"}],"language":[{"iso":"eng"}],"publisher":"IEEE","doi":"10.1109/ipdps49936.2021.00116","date_updated":"2023-07-28T12:05:15Z","year":"2021","quality_controlled":"1"},{"author":[{"full_name":"Karp, Martin","last_name":"Karp","first_name":"Martin"},{"last_name":"Podobas","first_name":"Artur","full_name":"Podobas, Artur"},{"full_name":"Jansson, Niclas","last_name":"Jansson","first_name":"Niclas"},{"last_name":"Kenter","first_name":"Tobias","full_name":"Kenter, Tobias","id":"3145"},{"orcid":"0000-0001-5728-9982","last_name":"Plessl","first_name":"Christian","id":"16153","full_name":"Plessl, Christian"},{"last_name":"Schlatter","first_name":"Philipp","full_name":"Schlatter, Philipp"},{"full_name":"Markidis, Stefano","first_name":"Stefano","last_name":"Markidis"}],"_id":"29937","title":"High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection","status":"public","language":[{"iso":"eng"}],"department":[{"_id":"27"},{"_id":"518"}],"date_created":"2022-02-21T14:26:37Z","user_id":"3145","citation":{"apa":"Karp, M., Podobas, A., Jansson, N., Kenter, T., Plessl, C., Schlatter, P., & Markidis, S. (2021). High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection. 2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS). https://doi.org/10.1109/ipdps49936.2021.00116","short":"M. Karp, A. Podobas, N. Jansson, T. Kenter, C. Plessl, P. Schlatter, S. Markidis, in: 2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS), IEEE, 2021.","chicago":"Karp, Martin, Artur Podobas, Niclas Jansson, Tobias Kenter, Christian Plessl, Philipp Schlatter, and Stefano Markidis. “High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection.” In 2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS). IEEE, 2021. https://doi.org/10.1109/ipdps49936.2021.00116.","ieee":"M. Karp et al., “High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection,” 2021, doi: 10.1109/ipdps49936.2021.00116.","ama":"Karp M, Podobas A, Jansson N, et al. High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection. In: 2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS). IEEE; 2021. doi:10.1109/ipdps49936.2021.00116","mla":"Karp, Martin, et al. “High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection.” 2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS), IEEE, 2021, doi:10.1109/ipdps49936.2021.00116.","bibtex":"@inproceedings{Karp_Podobas_Jansson_Kenter_Plessl_Schlatter_Markidis_2021, title={High-Performance Spectral Element Methods on Field-Programmable Gate Arrays : Implementation, Evaluation, and Future Projection}, DOI={10.1109/ipdps49936.2021.00116}, booktitle={2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS)}, publisher={IEEE}, author={Karp, Martin and Podobas, Artur and Jansson, Niclas and Kenter, Tobias and Plessl, Christian and Schlatter, Philipp and Markidis, Stefano}, year={2021} }"},"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"publication_status":"published","publication":"2021 IEEE International Parallel and Distributed Processing Symposium (IPDPS)","type":"conference","quality_controlled":"1","year":"2021","doi":"10.1109/ipdps49936.2021.00116","date_updated":"2024-01-22T09:59:13Z","publisher":"IEEE"},{"_id":"32245","author":[{"full_name":"Farheen, Henna","last_name":"Farheen","first_name":"Henna"},{"full_name":"Leuteritz, Till","first_name":"Till","last_name":"Leuteritz"},{"last_name":"Linden","first_name":"Stefan","full_name":"Linden, Stefan"},{"last_name":"Myroshnychenko","first_name":"Viktor","full_name":"Myroshnychenko, Viktor"},{"full_name":"Förstner, Jens","last_name":"Förstner","first_name":"Jens"}],"status":"public","title":"Optimization of optical waveguide antennas for directive emission of light","publication":"arXiv:2106.02468","type":"preprint","external_id":{"arxiv":["2106.02468"]},"date_created":"2022-06-28T08:01:09Z","user_id":"15278","project":[{"_id":"52","name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"bibtex":"@article{Farheen_Leuteritz_Linden_Myroshnychenko_Förstner_2021, title={Optimization of optical waveguide antennas for directive emission of light}, journal={arXiv:2106.02468}, author={Farheen, Henna and Leuteritz, Till and Linden, Stefan and Myroshnychenko, Viktor and Förstner, Jens}, year={2021} }","apa":"Farheen, H., Leuteritz, T., Linden, S., Myroshnychenko, V., & Förstner, J. (2021). Optimization of optical waveguide antennas for directive emission of light. In arXiv:2106.02468.","short":"H. Farheen, T. Leuteritz, S. Linden, V. Myroshnychenko, J. Förstner, ArXiv:2106.02468 (2021).","ieee":"H. Farheen, T. Leuteritz, S. Linden, V. Myroshnychenko, and J. Förstner, “Optimization of optical waveguide antennas for directive emission of light,” arXiv:2106.02468. 2021.","chicago":"Farheen, Henna, Till Leuteritz, Stefan Linden, Viktor Myroshnychenko, and Jens Förstner. “Optimization of Optical Waveguide Antennas for Directive Emission of Light.” ArXiv:2106.02468, 2021.","ama":"Farheen H, Leuteritz T, Linden S, Myroshnychenko V, Förstner J. Optimization of optical waveguide antennas for directive emission of light. arXiv:210602468. Published online 2021.","mla":"Farheen, Henna, et al. “Optimization of Optical Waveguide Antennas for Directive Emission of Light.” ArXiv:2106.02468, 2021."},"department":[{"_id":"27"}],"language":[{"iso":"eng"}],"abstract":[{"text":"Optical travelling wave antennas offer unique opportunities to control and\r\nselectively guide light into a specific direction which renders them as\r\nexcellent candidates for optical communication and sensing. These applications\r\nrequire state of the art engineering to reach optimized functionalities such as\r\nhigh directivity and radiation efficiency, low side lobe level, broadband and\r\ntunable capabilities, and compact design. In this work we report on the\r\nnumerical optimization of the directivity of optical travelling wave antennas\r\nmade from low-loss dielectric materials using full-wave numerical simulations\r\nin conjunction with a particle swarm optimization algorithm. The antennas are\r\ncomposed of a reflector and a director deposited on a glass substrate and an\r\nemitter placed in the feed gap between them serves as an internal source of\r\nexcitation. In particular, we analysed antennas with rectangular- and\r\nhorn-shaped directors made of either Hafnium dioxide or Silicon. The optimized\r\nantennas produce highly directional emission due to the presence of two\r\ndominant guided TE modes in the director in addition to leaky modes. These\r\nguided modes dominate the far-field emission pattern and govern the direction\r\nof the main lobe emission which predominately originates from the end facet of\r\nthe director. Our work also provides a comprehensive analysis of the modes,\r\nradiation patterns, parametric influences, and bandwidths of the antennas that\r\nhighlights their robust nature.","lang":"eng"}],"date_updated":"2022-06-28T08:01:39Z","year":"2021"},{"status":"public","title":"Steady states of $Λ$-type three-level systems excited by quantum light in lossy cavities","_id":"32236","author":[{"full_name":"Rose, H.","first_name":"H.","last_name":"Rose"},{"last_name":"Tikhonova","first_name":"O. V.","full_name":"Tikhonova, O. V."},{"last_name":"Meier","first_name":"T.","full_name":"Meier, T."},{"first_name":"P. ","last_name":"Sharapova","full_name":"Sharapova, P. "}],"date_updated":"2023-02-10T16:00:12Z","year":"2021","publication":"arXiv:2109.00842","external_id":{"arxiv":["2109.00842"]},"type":"preprint","department":[{"_id":"27"}],"abstract":[{"lang":"eng","text":"The interaction between quantum light and matter is being intensively studied\r\nfor systems that are enclosed in high-$Q$ cavities which strongly enhance the\r\nlight-matter coupling. However, for many applications, cavities with lower\r\n$Q$-factors are preferred due to the increased spectral width of the cavity\r\nmode. Here, we investigate the interaction between quantum light and matter\r\nrepresented by a $\\Lambda$-type three-level system in lossy cavities, assuming\r\nthat cavity losses are the dominant loss mechanism. We demonstrate that cavity\r\nlosses lead to non-trivial steady states of the electronic occupations that can\r\nbe controlled by the loss rate and the initial statistics of the quantum\r\nfields. The mechanism of formation of such steady states can be understood on\r\nthe basis of the equations of motion. Analytical expressions for steady states\r\nand their numerical simulations are presented and discussed."}],"language":[{"iso":"eng"}],"date_created":"2022-06-28T07:03:29Z","user_id":"14931","citation":{"apa":"Rose, H., Tikhonova, O. V., Meier, T., & Sharapova, P. (2021). Steady states of $Λ$-type three-level systems excited by quantum light in lossy cavities. In arXiv:2109.00842.","mla":"Rose, H., et al. “Steady States of $Λ$-Type Three-Level Systems Excited by Quantum Light in Lossy Cavities.” ArXiv:2109.00842, 2021.","ieee":"H. Rose, O. V. Tikhonova, T. Meier, and P. Sharapova, “Steady states of $Λ$-type three-level systems excited by quantum light in lossy cavities,” arXiv:2109.00842. 2021.","chicago":"Rose, H., O. V. Tikhonova, T. Meier, and P. Sharapova. “Steady States of $Λ$-Type Three-Level Systems Excited by Quantum Light in Lossy Cavities.” ArXiv:2109.00842, 2021.","ama":"Rose H, Tikhonova OV, Meier T, Sharapova P. Steady states of $Λ$-type three-level systems excited by quantum light in lossy cavities. arXiv:210900842. Published online 2021.","short":"H. Rose, O.V. Tikhonova, T. Meier, P. Sharapova, ArXiv:2109.00842 (2021).","bibtex":"@article{Rose_Tikhonova_Meier_Sharapova_2021, title={Steady states of $Λ$-type three-level systems excited by quantum light in lossy cavities}, journal={arXiv:2109.00842}, author={Rose, H. and Tikhonova, O. V. and Meier, T. and Sharapova, P. }, year={2021} }"},"project":[{"name":"PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}]}]