Pith Number

pith:XGHCOIKR

pith:2026:XGHCOIKR5JEJSJ6AWC6TVD2OBE

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SFUMATO#: A GPU-accelerated code for self-gravitational radiation hydrodynamics simulation with adaptive mesh refinement

Hajime Fukushima, Tomoaki Matsumoto

SFUMATO# provides a GPU-accelerated implementation for self-gravitational radiation hydrodynamics simulations on adaptive meshes.

arxiv:2604.21438 v2 · 2026-04-23 · astro-ph.GA · astro-ph.IM · astro-ph.SR

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\usepackage{pith}
\pithnumber{XGHCOIKR5JEJSJ6AWC6TVD2OBE}

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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

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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

We present a new implementation of the SFUMATO code, called SFUMATO#, for solving self-gravitational radiation hydrodynamics problems using adaptive mesh refinement (AMR) with the CUDA/HIP programming frameworks.

C2weakest assumption

The linearized implicit method for non-equilibrium chemistry and thermal evolution preserves accuracy when the pseudo dust heat capacity is increased by up to three orders of magnitude, as demonstrated only on the specific test problems described.

C3one line summary

SFUMATO# is a multi-GPU AMR code for self-gravitational radiation hydrodynamics featuring new linearized implicit solvers for non-equilibrium chemistry and thermal evolution, validated on test problems with measured scaling performance.

Receipt and verification

First computed	2026-05-22T01:04:03.004583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b98e272151ea489927c0b0bd3a8f4e092e0382e0c144359ced6572bf8a0d2fd7

Aliases

arxiv: 2604.21438 · arxiv_version: 2604.21438v2 · doi: 10.48550/arxiv.2604.21438 · pith_short_12: XGHCOIKR5JEJ · pith_short_16: XGHCOIKR5JEJSJ6A · pith_short_8: XGHCOIKR

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XGHCOIKR5JEJSJ6AWC6TVD2OBE \
  | 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: b98e272151ea489927c0b0bd3a8f4e092e0382e0c144359ced6572bf8a0d2fd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52220b82981804f4dcafdc5e04ccf42d0573633d61a15f95b89763a568b70cd1",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-04-23T08:52:51Z",
    "title_canon_sha256": "b73528c8eb2e6d6fd5abadabe160cad1af899258907a004d3f095ef7acf7f0f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.21438",
    "kind": "arxiv",
    "version": 2
  }
}