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Quantum and HPC at Riken: The Sum is Greater than Its Parts#

GTC 2026 digest Program Wildcard pick San Jose · 16–19 March 2026

Satoshi Matsuoka, Mitsuhisa Sato (Riken) — Talk, Tuesday, March 17

  • Why: Off-topic for AI fabrics, but the systems problem — orchestrating wildly heterogeneous compute (Fugaku supercomputer, GB200 clusters, superconducting and ion-trap QPUs) over low-latency RPC — rhymes with disaggregated-inference orchestration, and hybrid quantum-HPC utility results are a field-direction signal.
  • What: The JHPC-Quantum project: integrating the Fugaku supercomputer and NVIDIA GB200 clusters with superconducting and ion-trap QPUs, with a tightly coupled software stack and hybrid quantum-HPC algorithms achieving utility-scale results on realistic problems in quantum chemistry and CFD — not just quantum-favorable ones. (from abstract only)
  • How: Low-latency RPC middleware orchestrates the heterogeneous resources; the hybrid algorithms are co-designed with the coupling.
  • Where applicable: Riken-specific research infrastructure; early-stage, but the latency-and-orchestration design space overlaps with multi-tier AI systems, and Matsuoka's systems talks are reliably substantive.