Pith Number

pith:RMANWZLV

pith:2026:RMANWZLVMKS34LOOMOGHS63BNY

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

Eduarda Rodrigues Monteiro, Evandro Chagas Ribeiro da Rosa, Fernando Augusto Caletti de Barros, Gabriel Fernandes Thomaz, Jerusa Marchi

Reorganizing the quantum state vector for last-level cache locality reverses GPU performance degradation on integrated hardware as qubit count grows.

arxiv:2605.15098 v1 · 2026-05-14 · quant-ph · cs.AR · cs.DC · cs.PF

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Claims

C1strongest claim

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.

C2weakest assumption

That the state partitioning reorganization can be performed with negligible overhead and that the resulting cache behavior remains consistent across diverse integrated GPU architectures without architecture-specific tuning.

C3one line summary

State partitioning optimization improves cache locality and reverses GPU performance deficits for 28-qubit quantum state-vector simulations on integrated GPUs.

References

14 extracted · 14 resolved · 0 Pith anchors

[1] Quantum Software Engineering: Roadmap and Chal- lenges Ahead, 2025

[2] Quantum Computing in the NISQ era and beyond, 2018

[3] Simulation of Quantum Computers: Review and Acceleration Oppor- tunities, 2026

[4] Stabilizer Codes and Quantum Error Correction, 1997

[5] qHiPSTER: The Quantum High Performance Software Testing Environment, 2016

Receipt and verification

First computed	2026-05-17T21:40:25.842436Z
Last reissued	2026-05-17T21:57:19.171156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	unsigned_v0
Schema	pith-number/v1.0

Canonical hash

8b00db657562a5be2dce638c797b616e309a2da07e1f9297a2f021458ea82c37

Aliases

arxiv: 2605.15098 · arxiv_version: 2605.15098v1 · pith_short_12: RMANWZLVMKS3 · pith_short_16: RMANWZLVMKS34LOO · pith_short_8: RMANWZLV

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/RMANWZLVMKS34LOOMOGHS63BNY \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8b00db657562a5be2dce638c797b616e309a2da07e1f9297a2f021458ea82c37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f34c7d8e569f91a86d6822de689fe972e5ed3b1ba7c2d49d608421437fe4e5db",
    "cross_cats_sorted": [
      "cs.AR",
      "cs.DC",
      "cs.PF"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-05-14T17:17:02Z",
    "title_canon_sha256": "ab0278035131fd083be6076e11dda2875d9c963675ce40413b017a366cb77c05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15098",
    "kind": "arxiv",
    "version": 1
  }
}