Pith Number

pith:35JWV43D

pith:2025:35JWV43D6RMPHUMEOQSOT7MRKL

not attested not anchored not stored refs pending

An NLO-Matched Initial and Final State Parton Shower on a GPU

Michael H. Seymour, Siddharth Sule

A GPU-based parton shower matches the speed and energy use of a 96-core CPU cluster for NLO Z production at the LHC.

arxiv:2511.19633 v3 · 2025-11-24 · hep-ph

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\usepackage{pith}
\pithnumber{35JWV43D6RMPHUMEOQSOT7MRKL}

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Using these programs, we simulate NLO Z production at the LHC and demonstrate that the speed and energy consumption of an NVIDIA V100 GPU are on par with a 96-core cluster composed of two Intel Xeon Gold 5220R Processors.

C2weakest assumption

The GPU and CPU implementations produce numerically equivalent physics results for the NLO-matched showers, with no hidden differences in random number generation, phase-space sampling, or matching procedure that would affect observable distributions.

C3one line summary

GPU port of an NLO-matched parton shower achieves performance parity with a 96-core CPU cluster for LHC Z production simulations.

Receipt and verification

First computed	2026-05-20T00:05:37.978480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df536af363f458f3d1847424e9fd9152faf739e8901255b31f0062733fc70a8d

Aliases

arxiv: 2511.19633 · arxiv_version: 2511.19633v3 · doi: 10.48550/arxiv.2511.19633 · pith_short_12: 35JWV43D6RMP · pith_short_16: 35JWV43D6RMPHUME · pith_short_8: 35JWV43D

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/35JWV43D6RMPHUMEOQSOT7MRKL \
  | 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: df536af363f458f3d1847424e9fd9152faf739e8901255b31f0062733fc70a8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc7f98b3309b0344bc42855303e3a7d310c979ec2db4f25bb6db8abbd1cf8d72",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "hep-ph",
    "submitted_at": "2025-11-24T19:10:28Z",
    "title_canon_sha256": "26f186367a28051939b96895b0382d8ae0a2f342667c71ee3847aa5f10db4404"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2511.19633",
    "kind": "arxiv",
    "version": 3
  }
}