Mohsen Koohi EsfahaniSupervisors: Hans Vandierendonck and Peter Kilpatrick Thesis in PDF formatThesis on QUB Pure Portal Graph algorithms find several usages in industry, science, humanities, and technology. The fast-growing size of graph datasets in the context of the processing model of the current hardware has resulted in different bottlenecks such […]
algorithm engineering
8 posts
Repository https://github.com/DIPSA-QUB/LaganLighter Documentation https://github.com/DIPS-QUB/LaganLighter/tree/main/docs Algorithms in This Repo Cloning git clone https://github.com/MohsenKoohi/LaganLighter.git --recursive Graph Types LaganLighter supports the following graph formats: Measurements In addition to execution time, we use the PAPI library to measure hardware counters such as L3 cache misses, hardware instructions, DTLB misses, and load and store memory […]
36th ACM International Conference on Supercomputing 2022June 27-30, 2022Acceptance Rate: 25% DOI: 10.1145/3524059.3532365Authors’ Copy (PDF Format) The Minimum Spanning Forest (MSF) problem finds usage in many different applications. While theoretical analysis shows that linear-time solutions exist, in practice, parallel MSF algorithms remain computationally demanding due to the continuously increasing size […]
2022 IEEE International Symposium on Performance Analysis of Systems and Software (ISPASS 2022)May 22-24, 2022 DOI: 10.1109/ISPASS55109.2022.00015 Authors’ Copy (PDF) While counting sort has a better complexity than comparison-based sorting algorithms, its parallelization suffers from high performance overhead and/or has a memory complexity that depends on the numbers of threads […]
27th ACM SIGPLAN Annual Symposium on Principles and Practice of Parallel Programming (PPoPP 2022)April 2-6, 2022Acceptance Rate: 31% DOI: 10.1145/3503221.3508402Authors’ Copy (PDF Format) Triangle Counting (TC) is a basic graph algorithm and is widely used in different fields of science, humanities and technology. The great size of real-world graphs with […]
IEEE CLUSTER 20217-10 SeptemberAcceptance rate: 29.4% DOI: 10.1109/Cluster48925.2021.00042IEEE XplorePDF Version (Authors’ Copy) Thrifty introduces four optimization techniques to Label Propagation Connected Components: 1) Unified Labels Array accelerates label propagation by allowing the latest label of each vertex to be read in processing other vertices. 2) Zero Convergence optimizes work-efficiency in […]
50th International Conference on Parallel Processing (ICPP’21)August 9-12, 2021Acceptance Rate: 26.4% DOI:10.1145/3472456.3472462ACM Digital LibraryPDF Version (Authors’ Copy) This paper investigates the implications made by the structure of real-world graphs with power-law degree distribution on the locality of SpMV graph analytics, and by considering the efficacy of locality optimizing graph reordering […]
Thesis on QUB Pure PortalThesis in PDF Format Author: Jiawen Sun, https://www.linkedin.com/in/jiawen-sun-33b368103/ As shared memory systems support terabyte-sized main memory, they provide an opportunity to perform efficient graph analytics on a single machine. Graph analytics is characterised by frequent synchronisation, which is addressed in part by shared memory systems. However, […]