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| Hauptseite > Publikationsdatenbank > Universal quantum computer simulation of 50 qubits on Europe’s first exascale supercomputer harnessing its heterogeneous CPU–GPU architecture |
| Hauptseite > Publikationsdatenbank > Universal quantum computer simulation of 50 qubits on Europe’s first exascale supercomputer harnessing its heterogeneous CPU–GPU architecture |
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| Journal Article | FZJ-2026-04271 |
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2026
Elsevier Science
Amsterdam [u.a.]
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Please use a persistent id in citations: doi:10.1016/j.future.2026.108592 doi:10.34734/FZJ-2026-04271
Abstract: We have developed a new version of the high-performance Jülich universal quantum computer simulator (JUQCS-50) that leverages key features of the GH200 superchips as used in the JUPITER supercomputer, enabling simulations of a 50-qubit universal quantum computer for the first time. JUQCS-50 achieves this through three key innovations: (1) extending usable memory beyond GPU limits via high-bandwidth CPU–GPU interconnects and LPDDR5 memory; (2) adaptive data encoding to reduce memory footprint with acceptable trade-offs in precision and compute effort; and (3) an on-the-fly network traffic optimizer. These advances result in an 16.6-fold speedup over the previous 48-qubit record on the K computer.
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