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About this paper
Gokul Subramanian Ravi, Kaitlin N. Smith, Pranav Gokhale, Frederic T. Chong
This study analyzes two years of real-world usage data from IBM Quantum systems, comprising over 6,000 jobs and 600,000 circuit executions, to characterize quantum cloud workloads. It quantifies significant queuing delays (median 60 minutes, 10x execution time) and identifies factors influencing job execution, machine utilization, and application fidelity, providing insights for improved quantum resource management.
Key insights
- Queuing times on quantum cloud systems are significantly longer than execution times, with a median of 60 minutes and a median ratio of 10x queuing to execution time.
- Application fidelity for benchmark circuits varied substantially across machines and correlated strongly with two-qubit gate (CX) characteristics, suggesting CX-gate metrics as robust indicators.
- Over 20% of submitted jobs likely experienced calibration crossovers while in the queue, potentially rendering initial device-aware compilation suboptimal at the time of execution.
Summary by alphaXiv.
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