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- W4385387602 abstract "Quantum computer simulators are crucial for the development of quantum computing. In this work, we investigate the suitability and performance impact of GPU and multi-GPU systems on a widely used simulation tool - the state vector simulator Qiskit Aer. In particular, we evaluate the performance of both Qiskit's default Nvidia Thrust backend and the recent Nvidia cuQuantum backend on Nvidia A100 GPUs. We provide a benchmark suite of representative quantum applications for characterization. For simulations with a large number of qubits, the two GPU backends can provide up to 14x speedup over the CPU backend, with Nvidia cuQuantum providing further 1.5-3x speedup over the default Thrust backend. Our evaluation on a single GPU identifies the most important functions in Nvidia Thrust and cuQuantum for different quantum applications and their compute and memory bottlenecks. We also evaluate the gate fusion and cache-blocking optimizations on different quantum applications. Finally, we evaluate large-number qubit quantum applications on multi-GPU and identify data movement between host and GPU as the limiting factor for the performance." @default.
- W4385387602 created "2023-07-30" @default.
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- W4385387602 date "2023-07-27" @default.
- W4385387602 modified "2023-09-27" @default.
- W4385387602 title "Quantum Computer Simulations at Warp Speed: Assessing the Impact of GPU Acceleration" @default.
- W4385387602 doi "https://doi.org/10.48550/arxiv.2307.14860" @default.
- W4385387602 hasPublicationYear "2023" @default.
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