{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:77YVATWKGRWRRVK2PXR5YFJEHJ","short_pith_number":"pith:77YVATWK","schema_version":"1.0","canonical_sha256":"fff1504eca346d18d55a7de3dc15243a778f9dc0bcad0dbeeecab652c4f80252","source":{"kind":"arxiv","id":"2607.18650","version":1},"attestation_state":"computed","paper":{"title":"Unstructured Hydrodynamics on Spatial Dataflow Architectures: A Joint Code and Data Decomposition Approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Brian Van Essen, Leighton Wilson, Piotr Luczynski, Tal Ben-Nun","submitted_at":"2026-07-21T02:42:45Z","abstract_excerpt":"Spatial Dataflow Architectures are an emerging hardware pattern in high-performance computing, whose mesh-connected fixed-memory processing elements are tailored for structured grid kernels with two-dimensional neighborhoods. However, practical multiphysics codes are often computed on unstructured grids, which induce indirect memory accesses and high-dimensional communication patterns, making them infeasible to directly map onto said architectures. This work takes a principled, model-centric approach to partitioning unstructured problems onto spatial dataflow architectures. Through communicati"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2607.18650","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2026-07-21T02:42:45Z","cross_cats_sorted":[],"title_canon_sha256":"a74bf810a6cf14ca1054104992c26b64422af960b6f8ca6d827665edf2246e70","abstract_canon_sha256":"2d620bb9f4c6e2ed1e1c94e123aa6469445b7147be18340bcfccf8df7697708a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-22T00:22:58.534861Z","signature_b64":"6E+i/UmW9HZChu4nZJooh+iF9D3EXcwJjxJCiwwgl3JwMnj9OcrLmgNHzTpsHfRh3AqLSrg4Lfh5NpipBsUwCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fff1504eca346d18d55a7de3dc15243a778f9dc0bcad0dbeeecab652c4f80252","last_reissued_at":"2026-07-22T00:22:58.534011Z","signature_status":"signed_v1","first_computed_at":"2026-07-22T00:22:58.534011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Unstructured Hydrodynamics on Spatial Dataflow Architectures: A Joint Code and Data Decomposition Approach","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Brian Van Essen, Leighton Wilson, Piotr Luczynski, Tal Ben-Nun","submitted_at":"2026-07-21T02:42:45Z","abstract_excerpt":"Spatial Dataflow Architectures are an emerging hardware pattern in high-performance computing, whose mesh-connected fixed-memory processing elements are tailored for structured grid kernels with two-dimensional neighborhoods. However, practical multiphysics codes are often computed on unstructured grids, which induce indirect memory accesses and high-dimensional communication patterns, making them infeasible to directly map onto said architectures. This work takes a principled, model-centric approach to partitioning unstructured problems onto spatial dataflow architectures. Through communicati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.18650","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2607.18650/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2607.18650","created_at":"2026-07-22T00:22:58.534458+00:00"},{"alias_kind":"arxiv_version","alias_value":"2607.18650v1","created_at":"2026-07-22T00:22:58.534458+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.18650","created_at":"2026-07-22T00:22:58.534458+00:00"},{"alias_kind":"pith_short_12","alias_value":"77YVATWKGRWR","created_at":"2026-07-22T00:22:58.534458+00:00"},{"alias_kind":"pith_short_16","alias_value":"77YVATWKGRWRRVK2","created_at":"2026-07-22T00:22:58.534458+00:00"},{"alias_kind":"pith_short_8","alias_value":"77YVATWK","created_at":"2026-07-22T00:22:58.534458+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/77YVATWKGRWRRVK2PXR5YFJEHJ","json":"https://pith.science/pith/77YVATWKGRWRRVK2PXR5YFJEHJ.json","graph_json":"https://pith.science/api/pith-number/77YVATWKGRWRRVK2PXR5YFJEHJ/graph.json","events_json":"https://pith.science/api/pith-number/77YVATWKGRWRRVK2PXR5YFJEHJ/events.json","paper":"https://pith.science/paper/77YVATWK"},"agent_actions":{"view_html":"https://pith.science/pith/77YVATWKGRWRRVK2PXR5YFJEHJ","download_json":"https://pith.science/pith/77YVATWKGRWRRVK2PXR5YFJEHJ.json","view_paper":"https://pith.science/paper/77YVATWK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2607.18650&json=true","fetch_graph":"https://pith.science/api/pith-number/77YVATWKGRWRRVK2PXR5YFJEHJ/graph.json","fetch_events":"https://pith.science/api/pith-number/77YVATWKGRWRRVK2PXR5YFJEHJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/77YVATWKGRWRRVK2PXR5YFJEHJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/77YVATWKGRWRRVK2PXR5YFJEHJ/action/storage_attestation","attest_author":"https://pith.science/pith/77YVATWKGRWRRVK2PXR5YFJEHJ/action/author_attestation","sign_citation":"https://pith.science/pith/77YVATWKGRWRRVK2PXR5YFJEHJ/action/citation_signature","submit_replication":"https://pith.science/pith/77YVATWKGRWRRVK2PXR5YFJEHJ/action/replication_record"}},"created_at":"2026-07-22T00:22:58.534458+00:00","updated_at":"2026-07-22T00:22:58.534458+00:00"}