Kåre von Geijer

dblp:372/3559 · DBLP profile ↗
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3ranked-venue papers
3as first author
3since 2021 · last 2025
0009-0007-4823-6855ORCID · corroborated

Domains — the database's venue-derived domains; a paper can count in several

Systems, architecture and hardware · 3 · 3 first-author · 3 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Software engineering, system software, and programming languages
2 papers
Concurrent programming · 100%
Computer architecture, parallel and distributed computing, and storage systems
1 paper
Parallel and multicore computing · 100%

Topics — the 4 heaviest of 4, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Concurrent programming
concurrent data structures
1.722025
Elastic Relaxation of Concurrent Data Structures · IEEE Trans. Parallel Distributed Syst. 2025
Balanced Allocations over Efficient Queues: A Fast Relaxed FIFO Queue · PPoPP 2025
Parallel and multicore computing
load balancing
0.912025
Balanced Allocations over Efficient Queues: A Fast Relaxed FIFO Queue · PPoPP 2025
Concurrent programming
concurrency semantics
0.312025
Elastic Relaxation of Concurrent Data Structures · IEEE Trans. Parallel Distributed Syst. 2025
Concurrent programming
synchronization
0.312025
Elastic Relaxation of Concurrent Data Structures · IEEE Trans. Parallel Distributed Syst. 2025

Methods — techniques the papers use, named apart from their topics

probabilistic analysis · 1.7d-choice load balancing · 1.7
YearPublicationVenuePosition
2025 Balanced Allocations over Efficient Queues: A Fast Relaxed FIFO Queue
abstract
Relaxed semantics have been introduced to increase the achievable parallelism of concurrent data structures in exchange for weakening their ordering semantics. In this paper, we revisit the balanced allocations d-choice load balancing scheme in the context of relaxed FIFO queues. Our novel load balancing approach distributes operations evenly across n sub-queues based on operation counts, achieving low relaxation errors independent on the queues size, as opposed to similar earlier designs. We prove its relaxation errors to be of O(n log log n/log d) with high probability for a collection of possible executions. Furthermore, our scheme, contrary to previous ones, manages to interface and integrate the most performant linearizable queue designs from the literature as components. Our resulting relaxed FIFO queue is experimentally shown to outperform the previously best design using balanced allocations by more than four times in throughput, while simultaneously incurring less than a thousandth of its relaxation errors. In a concurrent breadth-first-search benchmark, our queue consistently outperforms both relaxed and strict state-of-the-art FIFO queues.
Kåre von Geijer, Philippas Tsigas, Elias Johansson, Sebastian Hermansson
PPoPP1
2025 Elastic Relaxation of Concurrent Data Structures
Kåre von Geijer, Philippas Tsigas
IEEE Trans. Parallel Distributed Syst.1
2024 How to Relax Instantly: Elastic Relaxation of Concurrent Data Structures
Kåre von Geijer, Philippas Tsigas
Euro-Par (3)1