GPU Benchmark through QPE Emulator with cuQuantum for Practical Quantum Applications

Abstract: The quantum algorithm of Quantum Phase Estimation (QPE) was implemented to make the maximum use of GPU emulation with cuQuantum and CUDA Toolkit by NVIDIA. The input and output were handled by HDF5 to make the process as easy as possible. The computational time, VRAM usage, value error, and overhead was evaluated against the developed application. VRAM usage and the profiler analysis suggested that the developed application could make the maximum use of GPU capability.