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Paper 1
Benchmarking Supercomputers with the Jülich Universal Quantum Computer Simulator
Dennis Willsch, Hannes Lagemann, Madita Willsch, Fengping Jin, Hans De Raedt, Kristel Michielsen
- Year
- 2019
- Journal
- arXiv preprint
- DOI
- arXiv:1912.03243
- arXiv
- 1912.03243
We use a massively parallel simulator of a universal quantum computer to benchmark some of the most powerful supercomputers in the world. We find nearly ideal scaling behavior on the Sunway TaihuLight, the K computer, the IBM BlueGene/Q JUQUEEN, and the Intel Xeon based clusters JURECA and JUWELS. On the Sunway TaihuLight and the K computer, universal quantum computers with up to 48 qubits can be simulated by means of an adaptive two-byte encoding to reduce the memory requirements by a factor of eight. Additionally, we discuss an alternative approach to alleviate the memory bottleneck by decomposing entangling gates such that low-depth circuits with a much larger number of qubits can be simulated.
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