Scaling of multi-core quantum architectures: a communications-aware structured gap analysis
| Autor: | Hans van Someren, Santiago Rodrigo, Carmen G. Almudéver, Sergi Abadal, Medina Bandic, Eduard Alarcon |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Doctorat en Arquitectura de Computadors, Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors, Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, Universitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla, Universitat Politècnica de Catalunya. EPIC - Energy Processing and Integrated Circuits |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Quantum communications
Multi-core processor Informàtica::Arquitectura de computadors::Arquitectures distribuïdes [Àrees temàtiques de la UPC] Computer science Design space exploration Distributed computing Ordinadors quàntics Quantum computers Quantum channel Gap analysis Quantum computing 01 natural sciences Many-core quantum computers 010305 fluids & plasmas Computer Science::Hardware Architecture Qubit 0103 physical sciences Scalability Quantum computers scalability 010306 general physics Dimensioning Quantum computer |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) CF |
| Popis: | In the quest of large-scale quantum computers, multi-core distributed architectures are considered a compelling alternative to be explored. A crucial aspect in such approach is the stringent demand on communication among cores when qubits need to interact, which conditions the scalability potential of these architectures. In this work, we address the question of how the cost of the communication among cores impacts on the viability of the quantum multi-core approach. Methodologically, we consider a design space in which architectural variables (number of cores, number of qubits per core), application variables for several quantum benchmarks (number of qubits, number of gates, percentage of two-qubit gates) and inter-core communication latency are swept along with the definition of a figure of merit. This approach yields both a qualitative understanding of trends in the design space and companion dimensioning guidelines for the architecture, including optimal points, as well as quantitative answers to the question of beyond which communication performance levels the multi-core architecture pays off. Our results allow to determine the thresholds for inter-core communication latency in order for multi-core architectures to outperform single-core quantum processors. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|