{"paper":{"title":"Distributed Affine Body Dynamics with Adaptive Consensus","license":"http://creativecommons.org/licenses/by/4.0/","headline":"A consensus-based ADMM scheme distributes Affine Body Dynamics simulations across multiple compute nodes while preserving IPC non-penetration guarantees.","cross_cats":[],"primary_cat":"cs.GR","authors_text":"Huamin Wang, Jiafeng Liu, Lei Lan, Weiwei Xu, Wenhui Zhou, Xinming Pei, Yifan Peng, Yin Yang","submitted_at":"2026-05-15T11:53:22Z","abstract_excerpt":"Affine Body Dynamics (ABD) within the Incremental Potential Contact (IPC) framework provides accurate simulation of extremely stiff solids exhibiting near-rigid behavior, with strict non-penetration guarantees. However, IPC's globally coupled barrier constraints hinder scalable execution across multiple GPUs and compute nodes. We propose a distributed formulation of ABD using a consensus-based ADMM scheme. Each compute node solves its local ABD subproblem in parallel, followed by a global consensus step that enforces consistency among shared boundary bodies. The proposed method preserves IPC-l"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"The proposed method preserves IPC-level robustness and global consistency under distributed execution.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"That local ABD subproblems can be solved independently on each node and then reconciled through a global consensus step without introducing penetrations or losing the strict non-penetration guarantees of the original IPC framework.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Presents a consensus-based ADMM distributed version of Affine Body Dynamics that enables scalable multi-node simulation while preserving IPC robustness and non-penetration.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"A consensus-based ADMM scheme distributes Affine Body Dynamics simulations across multiple compute nodes while preserving IPC non-penetration guarantees.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"ba75f33e318ad212e05a93e0a3ae3f16fe6e999469a25a2d0224ca22289b5c3b"},"source":{"id":"2605.15875","kind":"arxiv","version":1},"verdict":{"id":"421e0359-aa7e-466c-a3ae-7f9d9faed384","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-19T18:24:38.846089Z","strongest_claim":"The proposed method preserves IPC-level robustness and global consistency under distributed execution.","one_line_summary":"Presents a consensus-based ADMM distributed version of Affine Body Dynamics that enables scalable multi-node simulation while preserving IPC robustness and non-penetration.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"That local ABD subproblems can be solved independently on each node and then reconciled through a global consensus step without introducing penetrations or losing the strict non-penetration guarantees of the original IPC framework.","pith_extraction_headline":"A consensus-based ADMM scheme distributes Affine Body Dynamics simulations across multiple compute nodes while preserving IPC non-penetration guarantees."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.15875/integrity.json","findings":[],"available":true,"detectors_run":[{"name":"doi_compliance","ran_at":"2026-05-19T18:31:25.047841Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"doi_title_agreement","ran_at":"2026-05-19T18:31:18.765329Z","status":"completed","version":"1.0.0","findings_count":0},{"name":"ai_meta_artifact","ran_at":"2026-05-19T17:33:47.531811Z","status":"skipped","version":"1.0.0","findings_count":0},{"name":"claim_evidence","ran_at":"2026-05-19T17:01:55.800766Z","status":"completed","version":"1.0.0","findings_count":0}],"snapshot_sha256":"b904768030110fbac66540c6df5d0b72b02b7755c32484f8eb12fe99c16df0ec"},"references":{"count":76,"sample":[{"doi":"10.1145/3528223.3530064","year":2022,"title":"and Li, Minchen and Jiang, Chenfanfu and Yang, Yin , title =","work_id":"ec4f7e0f-ebb1-472c-afd3-558e365b7352","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2022,"title":"ACM Transactions on Graphics (TOG) , volume=","work_id":"90ec41e9-8b1a-4b2c-be6b-2c6bb18a9828","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"arXiv preprint arXiv:2411.06224 , year=","work_id":"399dd41c-25cf-4457-842b-44a01961575b","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"Kaufman , title =","work_id":"23bcffd4-4dc5-4813-a909-20c7a5ab068b","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2023,"title":"Distributed Simulation of Large Multi-body Systems , author=. 2023 , publisher=","work_id":"43e3630b-d381-41aa-b3e0-9db16db0dbf8","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":76,"snapshot_sha256":"b7eb3d25b76e283dbd0cec8a0ba3ff3ec2d7de226d17d9673d44c6ae7ced4aa4","internal_anchors":1},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}