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Profiles

Research Topics

  • Application acceleration using FPGA
  • Near-data processing
  • Databases on Modern Hardware
  • Computer Architecture

Publications

  1. Tamimi, S. (2025). Hardware/Software Co-Design for Accelerated Near-Data Processing in Modern Database Systems (PhD thesis). Technische Universität Darmstadt.
    DOI
    Bibtex 
    @phdthesis{tamimi2025diss,
  author = {Tamimi, Sajjad},
  school = {Technische Universit{\"a}t Darmstadt},
  year = {2025},
  title = {Hardware/Software Co-Design for Accelerated Near-Data Processing in Modern Database Systems},
  doi = {10.26083/tuprints-00031389}
}
  2. Bernhardt, A., Tamimi, S., Stock, F., Koch, A., and Petrov, I. (2025). Update NDP: On Offloading Modifications to Smart Storage with Transactional Guarantees in Near-Data Processing DBMS. In ACM Transactions on Database Systems (TODS). Association for Computing Machinery. doi: 10.1145/3774753
    Preprint DOI URL
    Bibtex 
    @inproceedings{bernhardtTODS2025,
  author = {Bernhardt, Arthur and Tamimi, Sajjad and Stock, Florian and Koch, Andreas and Petrov, Ilia},
  title = {Update NDP: On Offloading Modifications to Smart Storage with Transactional Guarantees in Near-Data Processing DBMS},
  booktitle = {ACM Transactions on Database Systems (TODS)},
  year = {2025},
  preprint = {https://dblab.reutlingen-university.de/paper/2025_ACM_TODS_UpdateNDP.pdf},
  doi = {10.1145/3774753},
  publisher = {Association for Computing Machinery},
  url = {https://doi.org/10.1145/3774753},
  month = nov,
  keywords = {Database Systems on Smart Storage, Near-Data Processing}
}
  3. Bernhardt, A., Tamimi, S., Stock, F., Koch, A., and Petrov, I. (2025). PUL: Pre-load in Software for Caches Wouldn’t Play Along. The 29th European Conference on Advances in Databases and Information Systems (ADBIS).
    Preprint
    Bibtex 
    @article{bernhardtADBIS2025,
  author = {Bernhardt, Arthur and Tamimi, Sajjad and Stock, Florian and Koch, Andreas and Petrov, Ilia},
  title = {PUL: Pre-load in Software for Caches Wouldn’t Play Along},
  booktitle = {The 29th European Conference on Advances in Databases and Information Systems (ADBIS)},
  year = {2025},
  preprint = {https://arxiv.org/pdf/2506.16976}
}
  4. Tamimi, S., Bernhardt, A., Stock, F., Petrov, I., and Koch, A. (2025). CINDA: Using Cache-Coherent Interconnects for Accelerating Databases by Enabling Near-Data Processing of Update Transactions. IEEE Transactions on Computers, 1–14. doi: 10.1109/TC.2025.3558028
    Preprint DOI
    Bibtex 
    @article{tamimiTC2025CINDA,
  author = {Tamimi, Sajjad and Bernhardt, Arthur and Stock, Florian and Petrov, Ilia and Koch, Andreas},
  journal = {IEEE Transactions on Computers},
  title = {CINDA: Using Cache-Coherent Interconnects for Accelerating Databases by Enabling Near-Data Processing of Update Transactions},
  year = {2025},
  volume = {},
  number = {},
  pages = {1-14},
  keywords = {Low latency communication;Translation;Synchronization;Engines;Computer architecture;Standards;Field programmable gate arrays;Benchmark testing;Throughput;Memory management;Near-Data Processing;Computational Storage;CCIX;CXL;FPGA;Database Management Systems},
  doi = {10.1109/TC.2025.3558028}
}
  5. Tamimi, S., Bernhardt, A., Stock, F., Petrov, I., and Koch, A. (2024). DANSEN: Database Acceleration on Native Computational Storage by Exploiting NDP. ACM Trans. Reconfigurable Technol. Syst. New York, NY, USA: Association for Computing Machinery. doi: 10.1145/3655625
    HiPEAC Award Preprint DOI URL
    Bibtex 
    @article{tamimi2024tretsDANSEN,
  author = {Tamimi, Sajjad and Bernhardt, Arthur and Stock, Florian and Petrov, Ilia and Koch, Andreas},
  title = {DANSEN: Database Acceleration on Native Computational Storage by Exploiting NDP},
  year = {2024},
  publisher = {Association for Computing Machinery},
  address = {New York, NY, USA},
  issn = {1936-7406},
  url = {https://doi.org/10.1145/3655625},
  doi = {10.1145/3655625},
  note = {Just Accepted},
  journal = {ACM Trans. Reconfigurable Technol. Syst.},
  month = apr,
  keywords = {Near-Data Processing, Computational Storage, FPGA, Database Management Systems.}
}
  6. Jasny, M., Thostrup, L., Tamimi, S., Koch, A., István, Z., and Binnig, C. (2024). Zero-sided RDMA: Network-driven Data Shuffling for Disaggregated Heterogeneous Cloud DBMSs. Proc. ACM Manag. Data, 2(1). New York, NY, USA: Association for Computing Machinery. doi: 10.1145/3639291
    DOI URL
    Bibtex 
    @article{Jasny2024SIGMOD,
  author = {Jasny, Matthias and Thostrup, Lasse and Tamimi, Sajjad and Koch, Andreas and Istv\'{a}n, Zsolt and Binnig, Carsten},
  title = {Zero-sided RDMA: Network-driven Data Shuffling for Disaggregated Heterogeneous Cloud DBMSs},
  year = {2024},
  issue_date = {February 2024},
  publisher = {Association for Computing Machinery},
  address = {New York, NY, USA},
  volume = {2},
  number = {1},
  url = {https://doi.org/10.1145/3639291},
  doi = {10.1145/3639291},
  journal = {Proc. ACM Manag. Data},
  month = mar,
  articleno = {36},
  numpages = {28},
  keywords = {FPGA, GPU, RDMA, communication scheme, heterogeneous compute}
}
  7. Tamimi, S., Stock, F., Bernhardt, A., Petrov, I., and Koch, A. (2023). NVMulator: A Configurable Open-Source Non-volatile Memory Emulator for FPGAs. In Applied Reconfigurable Computing. Architectures, Tools, and Applications. Springer International Publishing. doi: 10.1007/978-3-031-42921-7_3
    DOI URL
    Bibtex 
    @inproceedings{tamimi2023arc,
  author = {Tamimi, Sajjad and Stock, Florian and Bernhardt, Arthur and Petrov, Ilia and Koch, Andreas},
  title = {NVMulator: A Configurable Open-Source Non-volatile Memory Emulator for FPGAs},
  booktitle = {Applied Reconfigurable Computing. Architectures, Tools, and Applications},
  year = {2023},
  publisher = {Springer International Publishing},
  url = {https://doi.org/10.1007/978-3-031-42921-7_3},
  doi = {10.1007/978-3-031-42921-7_3}
}
  8. Vinçon, T., Knödler, C., Solis-Vasquez, L., Bernhardt, A., Tamimi, S., Weber, L., Stock, F., et al. (2022). Near-Data Processing in Database Systems on Native Computational Storage under HTAP Workloads. In Proceedings of the VLDB Endowment, Volume 15. doi: 10.14778/3547305.3547307
    Preprint DOI Slides Video
    Bibtex 
    @inproceedings{vincon2022vldb,
  author = {Vin\c{c}on, Tobias and Kn\"{o}dler, Christian and Solis-Vasquez, Leonardo and Bernhardt, Arthur and Tamimi, Sajjad and Weber, Lukas and Stock, Florian and Koch, Andreas and Petrov, Ilia},
  title = {Near-Data Processing in Database Systems on Native Computational Storage under HTAP Workloads},
  booktitle = {Proceedings of the VLDB Endowment, Volume 15},
  year = {2022},
  preprint = {https://dblab.reutlingen-university.de/paper/2022_VLDB_UpdateAwareNDP.pdf},
  doi = {10.14778/3547305.3547307},
  slides = {https://dblab.reutlingen-university.de/media/2022_VLDB_NDPunderHTAP.pdf},
  video = {https://dblab.reutlingen-university.de/media/2022_VLDB_NDPunderHTAP.mp4}
}
  9. Tamimi, S., Stock, F., Bernhardt, A., Petrov, I., and Koch, A. (2022). An Evaluation of Using CCIX for Cache-Coherent Host-FPGA Interfacing. In 2022 IEEE 30th Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM).
    HiPEAC Award Preprint Slides
    Bibtex 
    @inproceedings{tamimi2022fccm,
  author = {Tamimi, Sajjad and Stock, Florian and Bernhardt, Arthur and Petrov, Ilia and Koch, Andreas},
  title = {An Evaluation of Using CCIX for Cache-Coherent Host-FPGA Interfacing},
  booktitle = {2022 IEEE 30th Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM)},
  year = {2022}
}
  10. Bernhardt, A., Tamimi, S., Vinçon, T., Knoedler, C., Stock, F., Heinz, C., Koch, A., et al. (2022). neoDBMS: In-situ Snapshots for Multi-Version DBMS on Native Computational Storage. In 2022 IEEE 38th International Conference on Data Engineering (ICDE).
    Preprint
    Bibtex 
    @inproceedings{tamimi2022icde,
  author = {Bernhardt, Arthur and Tamimi, Sajjad and Vin\c{c}on, Tobias and Knoedler, Christian and Stock, Florian and Heinz, Carsten and Koch, Andreas and Petrov, Ilia},
  title = {neoDBMS: In-situ Snapshots for Multi-Version DBMS on Native Computational Storage},
  booktitle = {2022 IEEE 38th International Conference on Data Engineering (ICDE)},
  year = {2022}
}
  11. Bernhardt, A., Tamimi, S., Stock, F., Vinçon, T., Koch, A., and Petrov, I. (2022). Cache-Coherent Shared Locking for Transactionally Consistent Updates in Near-Data Processing DBMS on Smart Storage. In Proc. of the 25th International Conference on Extending Database Technology (EDBT).
    Preprint Slides Video
    Bibtex 
    @inproceedings{tamimi2022edbt,
  author = {Bernhardt, Arthur and Tamimi, Sajjad and Stock, Florian and Vin\c{c}on, Tobias and Koch, Andreas and Petrov, Ilia},
  title = {Cache-Coherent Shared Locking for Transactionally Consistent Updates in Near-Data Processing DBMS on Smart Storage},
  booktitle = {Proc. of the 25th International Conference on Extending Database Technology (EDBT)},
  year = {2022},
  video = {https://www.youtube.com/embed/2gwnvKuzj_o}
}
  12. Vinçon, T., Weber, L., Bernhardt, A., Riegger, C., Hardock, S., Knoedler, C., Stock, F., et al. (2020). nKV in Action: Accelerating KV-Stores on Native Computation Storage with Near-Data Processing. In Proceedings of the VLDB Endowment, Volume 13. doi: 10.14778/3415478.3415524
    Preprint DOI Slides Video
    Bibtex 
    @inproceedings{weber2020vldb,
  author = {Vin\c{c}on, Tobias and Weber, Lukas and Bernhardt, Arthur and Riegger, Christian and Hardock, Sergey and Knoedler, Christian and Stock, Florian and Solis-Vasquez, Leonardo and Tamimi, Sajjad and Koch, Andreas},
  title = {nKV in Action: Accelerating KV-Stores on Native Computation Storage with Near-Data Processing},
  booktitle = {Proceedings of the VLDB Endowment, Volume 13},
  year = {2020},
  doi = {10.14778/3415478.3415524},
  video = {https://www.youtube.com/watch?v=iiGh6Pj_A9k}
}
  13. Tamimi, S., Ebrahimi, Z., Khaleghi, B., and Asadi, H. (2019). An Efficient SRAM-Based Reconfigurable Architecture for Embedded Processors. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 38(3), 466–479. doi: 10.1109/TCAD.2018.2812118
    DOI
    Bibtex 
    @article{Tamimi2019TCAD,
  author = {Tamimi, Sajjad and Ebrahimi, Zahra and Khaleghi, Behnam and Asadi, Hossein},
  journal = {IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems},
  title = {An Efficient SRAM-Based Reconfigurable Architecture for Embedded Processors},
  year = {2019},
  volume = {38},
  number = {3},
  pages = {466-479},
  keywords = {Program processors;Field programmable gate arrays;Embedded systems;Table lookup;Switches;Power demand;Field programmable gate arrays;microprocessors;partial reconfiguration;power dissipation;reconfigurable logic;soft-core processors},
  doi = {10.1109/TCAD.2018.2812118}
}