Accelerating State-Vector Quantum Simulation on Integrated GPUs via Cache Locality Optimization: A Cross-Architecture Evaluation

Fuente: arXiv
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Hauptverfasser: Thomaz, Gabriel Fernandes, Marchi, Jerusa, Monteiro, Eduarda Rodrigues, de Barros, Fernando Augusto Caletti, da Rosa, Evandro Chagas Ribeiro
Format: Preprint
Veröffentlicht: 2026
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author Thomaz, Gabriel Fernandes
Marchi, Jerusa
Monteiro, Eduarda Rodrigues
de Barros, Fernando Augusto Caletti
da Rosa, Evandro Chagas Ribeiro
author_facet Thomaz, Gabriel Fernandes
Marchi, Jerusa
Monteiro, Eduarda Rodrigues
de Barros, Fernando Augusto Caletti
da Rosa, Evandro Chagas Ribeiro
contents The classical simulation of quantum algorithms is a crucial tool for circuit development, testing, and validation. Although acceleration using GPUs significantly reduces simulation time, most high-performance simulators rely on vendor-specific frameworks that target data-center hardware. To broaden access to quantum simulation, this work proposes a vendor-agnostic approach targeting the integrated GPUs commonly found in consumer-grade laptops. A primary challenge in state-vector simulation is its inherently poor spatial locality, which creates a memory bandwidth bottleneck. Consequently, baseline implementations experience a severe degradation in relative GPU speedup as the number of simulated qubits increases. To address this limitation, we introduce a state partitioning optimization that reorganizes the quantum state vector to maximize the last-level cache locality and minimize costly main memory fetches. We evaluate this strategy using a Quantum Phase Estimation algorithm across diverse architectures from Intel, AMD, and Apple. The experimental results demonstrate that the proposed optimization successfully mitigates performance degradation at larger qubit scales. In particular, for a 28-qubit simulation, the optimization reversed a performance deficit on an Intel Core i5, improving the GPU speedup over the CPU from 0.95x to 1.89x, and increased the Apple M1 Pro speedup from 3.71x to 5.88x. Overall, this approach yields consistent execution time improvements, demonstrating the viability of integrated GPUs for efficient quantum circuit simulation.
format Preprint
id arxiv_https___arxiv_org_abs_2605_15098
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Accelerating State-Vector Quantum Simulation on Integrated GPUs via Cache Locality Optimization: A Cross-Architecture Evaluation
Thomaz, Gabriel Fernandes
Marchi, Jerusa
Monteiro, Eduarda Rodrigues
de Barros, Fernando Augusto Caletti
da Rosa, Evandro Chagas Ribeiro
Quantum Physics
Hardware Architecture
Distributed, Parallel, and Cluster Computing
Performance
68Q12, 81P68 (Primary) 68W10, 65Y05 (Secondary)
C.1.2; C.1.4; F.1.1
The classical simulation of quantum algorithms is a crucial tool for circuit development, testing, and validation. Although acceleration using GPUs significantly reduces simulation time, most high-performance simulators rely on vendor-specific frameworks that target data-center hardware. To broaden access to quantum simulation, this work proposes a vendor-agnostic approach targeting the integrated GPUs commonly found in consumer-grade laptops. A primary challenge in state-vector simulation is its inherently poor spatial locality, which creates a memory bandwidth bottleneck. Consequently, baseline implementations experience a severe degradation in relative GPU speedup as the number of simulated qubits increases. To address this limitation, we introduce a state partitioning optimization that reorganizes the quantum state vector to maximize the last-level cache locality and minimize costly main memory fetches. We evaluate this strategy using a Quantum Phase Estimation algorithm across diverse architectures from Intel, AMD, and Apple. The experimental results demonstrate that the proposed optimization successfully mitigates performance degradation at larger qubit scales. In particular, for a 28-qubit simulation, the optimization reversed a performance deficit on an Intel Core i5, improving the GPU speedup over the CPU from 0.95x to 1.89x, and increased the Apple M1 Pro speedup from 3.71x to 5.88x. Overall, this approach yields consistent execution time improvements, demonstrating the viability of integrated GPUs for efficient quantum circuit simulation.
title Accelerating State-Vector Quantum Simulation on Integrated GPUs via Cache Locality Optimization: A Cross-Architecture Evaluation
topic Quantum Physics
Hardware Architecture
Distributed, Parallel, and Cluster Computing
Performance
68Q12, 81P68 (Primary) 68W10, 65Y05 (Secondary)
C.1.2; C.1.4; F.1.1
url https://arxiv.org/abs/2605.15098