ParPerOS: Parallel Persistency OS (DFG: LO 1719/8-1 and DI 2840/2-1)

ParPerOS is a joint project with TUHH (Co-PI: Christian Dietrich) and part of the DFG Priority Program "Disruptive Memory Technologies" (SPP 2377, Speaker: Olaf Spinczyk).

The management of memory resources has always been a core task of the operating system. However, OS designers are now facing disruptive changes on the memory side: New memory types, such as high-bandwith memory (HBM) or non-volatile memory (NVM) have arrived and more types of processing elements, such as RDMA-capable NICs, GPGPUs, or FPGA-based accellerators, access virtual memory directly via the IO-MMU. These heterogenious memory systems (HMSs) put not only the suitability of the classical memory hierarchy and memory access patterns at question, but also challenge the way memory is managed inside the kernel.

In ParPerOS, we examine new abstractions for unified but efficient and optionally crash-consistent low-level memory management for data objects in heterogeneous memory systems that may consist of volatile, persistent, distributed and other types of main memory, accessed in parallel by a multitude of different processing elements (CPU, GPU, NIC, RDMA).

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USENIX Conference A Distinguished Artifact Award
LLFree: Scalable and Optionally-Persistent Page-Frame Allocation

Lars Wrenger, Florian Rommel, Alexander Halbuer, Christian Dietrich, Daniel Lohmann2023 USENIX Annual Technical Conference (USENIX '23)USENIX Association2023Distinguished Artifact Award.
PDF Details Slides [BibTex]

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BibTex Entry

@inproceedings{wrenger:23:atc,
 address = {Boston, MA},
 author = {Wrenger, Lars and Rommel, Florian and Halbuer, Alexander and Dietrich, Christian and Lohmann, Daniel},
 booktitle = {2023 USENIX Annual Technical Conference (USENIX '23)},
 entrysubtype = {Conference},
 isbn = {978-1-939133-35-9},
 month = {July},
 pages = {897--914},
 publisher = {USENIX Association},
 title = {{LLFree}: Scalable and {Optionally-Persistent} {Page-Frame} Allocation},
 url = {https://www.usenix.org/conference/atc23/presentation/wrenger},
 userc = {CORE21:A},
 userd = {USENIX '23},
 year = {2023}
}

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USENIX Conference A
MELF: Multivariant Executables for a Heterogeneous World

Dominik Töllner, Christian Dietrich, Illia Ostapyshyn, Florian Rommel, Daniel Lohmann2023 USENIX Annual Technical Conference (USENIX '23)USENIX Association2023.
PDF Details [BibTex]

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BibTex Entry

@inproceedings{toellner:23:atc,
 address = {Boston, MA},
 author = {Töllner, Dominik and Dietrich, Christian and Ostapyshyn, Illia and Rommel, Florian and Lohmann, Daniel},
 booktitle = {2023 USENIX Annual Technical Conference (USENIX '23)},
 entrysubtype = {Conference},
 isbn = {978-1-939133-35-9},
 month = {July},
 pages = {257--273},
 publisher = {USENIX Association},
 title = {{MELF}: Multivariant Executables for a Heterogeneous World},
 url = {https://www.usenix.org/conference/atc23/presentation/tollner},
 userc = {CORE21:A},
 userd = {USENIX '23},
 year = {2023}
}

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ARCS Conference Best Paper Award
TOSTING: Investigating Total Store Ordering on ARM

Lars Wrenger, Dominik Töllner, Daniel LohmannProceedings of the 36th GI/ITG International Conference on Architecture of Computing Systems (ARCS 23)Springer International Publishing2023Best Paper Award.
PDF Details Slides [BibTex]

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BibTex Entry

@inproceedings{wrenger:23:arcs,
 address = {Athens, Greece},
 author = {Wrenger, Lars and Töllner, Dominik and Lohmann, Daniel},
 booktitle = {Proceedings of the 36th GI/ITG International Conference on Architecture of Computing Systems (ARCS 23)},
 entrysubtype = {Conference},
 month = {July},
 publisher = {Springer International Publishing},
 title = {{TOSTING}: Investigating Total Store Ordering on ARM},
 userd = {ARCS '23},
 year = {2023}
}

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SIGMOD Conference A*
Virtual-Memory Assisted Buffer Management

Viktor Leis, Adnan Alhomssi, Tobias Ziegler, Yannick Loeck, Christian DietrichProceedings of the ACM SIGMOD/PODS International Conference on Management of Data (SIGMOD'23)ACM2023.
PDF 10.1145/3588687 [BibTex]

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BibTex Entry

@inproceedings{leis:23:sigmod,
 address = {New York, NY, USA},
 author = {Viktor Leis and Adnan Alhomssi and Tobias Ziegler and Yannick Loeck and Christian Dietrich},
 booktitle = {Proceedings of the ACM SIGMOD/PODS International Conference on Management of Data (SIGMOD'23)},
 doi = {10.1145/3588687},
 entrysubtype = {Conference},
 location = {Seattle, WA, USA},
 month = {June},
 publisher = {ACM},
 title = {Virtual-Memory Assisted Buffer Management},
 userc = {CORE21:A*},
 userd = {SIGMOD '23},
 year = {2023}
}

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