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Physics & X-Ray Science Computing

Wim Lavrijsen

Wim Lavrijsen
Wim Lavrijsen
Computer Systems Engineer
Phone: +1 510 486 6411

Biographical Sketch

Wim Lavrijsen is a software engineer who is currently involved in the ATLAS experiment at CERN (Geneva, Switzerland). He is the author of the PyROOT dynamic python bindings for the ROOT analysis software package and has developed several nimble performance monitoring tools that work under the heavy constraints of the ATLAS offline software. His interests are in python parallelization for multicore machines, optimization, and compilation.

Conference Papers

Wim Lavrijsen, Costin Iancu, Wibe Albert de Jong, Xin Chen, Karsten Schwan, "Exploiting Variability for Energy Optimization of Load Balanced Parallel Programs", EuroSys 2016, February 5, 2016,


Frederic Bapst, Wahid Bhimji, Paolo Calafiura, Heather Gray, Wim Lavrijsen, Lucy Linder, Alex Smith, A pattern recognition algorithm for quantum annealers, Comput. Softw. Big Sci., Pages: 1 2020, doi: 10.1007/s41781-019-0032-5

Masahiko Saito, Paolo Calafiura, Heather Gray, Wim Lavrijsen, Lucy Linder, Yasuyuki Okumura, Ryu Sawada, Alex Smith, Junichi Tanaka, Koji Terashi, Quantum annealing algorithms for track pattern recognition, EPJ Web Conf., Pages: 10006 2020, doi: 10.1051/epjconf/202024510006