Towards a Unified Architectural Representation in HPCQC: Extending Sys-Sage for Quantum Technologies

Quantum Computing (QC) presents a significant departure from and substantial parallels to classical computing. Some such parallels include the need to understand topology and system characteristics information and make that available to users as well as other system components like compilers, runtimes, and schedulers. We analyze the differences and extend sys-sage to capture quantum information. This leverages code reuse and automatically incorporates QC information into the software stack for hybrid HPCQC integration. This paper addresses the extensions to sys-sage, a classical HPC-relevant library, to also represent and store the characteristics of Quantum Processing Units (QPUs). Our work also presents the role of sys-sage in pre-processing and analyzing the topology and properties of different components of QCs to provide valuable insights that compilers, schedulers or circuit mappers can use. These features aim to facilitate the HPCQC ecosystem by providing a unified interface.