2 Search Results for "Ruppert, Eric"

Document
DOI: 10.4230/LIPIcs.OPODIS.2023.17
A Wait-Free Deque With Polylogarithmic Step Complexity

Authors: Shalom M. Asbell and Eric Ruppert

Published in: LIPIcs, Volume 286, 27th International Conference on Principles of Distributed Systems (OPODIS 2023)

Abstract
The amortized step complexity of operations on all previous lock-free implementations of double-ended queues is linear in the number of processes. This paper presents the first concurrent double-ended queue where the amortized step complexity of each operation is polylogarithmic. Since a stack is a special case of a double-ended queue, this is also the first concurrent stack with polylogarithmic step complexity. The implementation is wait-free and the amortized step complexity is O(log² p + log q) per operation, where p is the number of processes and q is the size of the double-ended queue.
Cite as

Shalom M. Asbell and Eric Ruppert. A Wait-Free Deque With Polylogarithmic Step Complexity. In 27th International Conference on Principles of Distributed Systems (OPODIS 2023). Leibniz International Proceedings in Informatics (LIPIcs), Volume 286, pp. 17:1-17:22, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2024)

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@InProceedings{asbell_et_al:LIPIcs.OPODIS.2023.17,
  author =	{Asbell, Shalom M. and Ruppert, Eric},
  title =	{{A Wait-Free Deque With Polylogarithmic Step Complexity}},
  booktitle =	{27th International Conference on Principles of Distributed Systems (OPODIS 2023)},
  pages =	{17:1--17:22},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-308-9},
  ISSN =	{1868-8969},
  year =	{2024},
  volume =	{286},
  editor =	{Bessani, Alysson and D\'{e}fago, Xavier and Nakamura, Junya and Wada, Koichi and Yamauchi, Yukiko},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.OPODIS.2023.17},
  URN =		{urn:nbn:de:0030-drops-195073},
  doi =		{10.4230/LIPIcs.OPODIS.2023.17},
  annote =	{Keywords: Lock-Free, Wait-Free, Double-Ended Queue, Deque, Stack, Space-Bounded, Polylogarithmic, Linearizable}
}
Document
DOI: 10.4230/LIPIcs.DISC.2021.12
Space and Time Bounded Multiversion Garbage Collection

Authors: Naama Ben-David, Guy E. Blelloch, Panagiota Fatourou, Eric Ruppert, Yihan Sun, and Yuanhao Wei

Published in: LIPIcs, Volume 209, 35th International Symposium on Distributed Computing (DISC 2021)

Abstract
We present a general technique for garbage collecting old versions for multiversion concurrency control that simultaneously achieves good time and space complexity. Our technique takes only O(1) time on average to reclaim each version and maintains only a constant factor more versions than needed (plus an additive term). It is designed for multiversion schemes using version lists, which are the most common. Our approach uses two components that are of independent interest. First, we define a novel range-tracking data structure which stores a set of old versions and efficiently finds those that are no longer needed. We provide a wait-free implementation in which all operations take amortized constant time. Second, we represent version lists using a new lock-free doubly-linked list algorithm that supports efficient (amortized constant time) removals given a pointer to any node in the list. These two components naturally fit together to solve the multiversion garbage collection problem - the range-tracker identifies which versions to remove and our list algorithm can then be used to remove them from their version lists. We apply our garbage collection technique to generate end-to-end time and space bounds for the multiversioning system of Wei et al. (PPoPP 2021).
Cite as

Naama Ben-David, Guy E. Blelloch, Panagiota Fatourou, Eric Ruppert, Yihan Sun, and Yuanhao Wei. Space and Time Bounded Multiversion Garbage Collection. In 35th International Symposium on Distributed Computing (DISC 2021). Leibniz International Proceedings in Informatics (LIPIcs), Volume 209, pp. 12:1-12:20, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@InProceedings{bendavid_et_al:LIPIcs.DISC.2021.12,
  author =	{Ben-David, Naama and Blelloch, Guy E. and Fatourou, Panagiota and Ruppert, Eric and Sun, Yihan and Wei, Yuanhao},
  title =	{{Space and Time Bounded Multiversion Garbage Collection}},
  booktitle =	{35th International Symposium on Distributed Computing (DISC 2021)},
  pages =	{12:1--12:20},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-210-5},
  ISSN =	{1868-8969},
  year =	{2021},
  volume =	{209},
  editor =	{Gilbert, Seth},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.DISC.2021.12},
  URN =		{urn:nbn:de:0030-drops-148143},
  doi =		{10.4230/LIPIcs.DISC.2021.12},
  annote =	{Keywords: Lock-free, data structures, memory management, snapshot, version lists}
}
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