{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:DAV4IGSGOAQLUMS5AJQJC4LZDD","short_pith_number":"pith:DAV4IGSG","schema_version":"1.0","canonical_sha256":"182bc41a467020ba325d026091717918ce33be9806751a8067bc92562da57bdc","source":{"kind":"arxiv","id":"2104.10000","version":3},"attestation_state":"computed","paper":{"title":"Exascale Landau collision operator in the Cuda programming model applied to thermal quench plasmas","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"D. P. Brennan, M. F. Adams, M. G. Knepley, P. Wang","submitted_at":"2021-04-07T16:48:16Z","abstract_excerpt":"Collisional processes are critical in the understanding of non-Maxwellian plasmas. The Landau form of the Fokker-Planck equation is the gold standard for modeling collisions in most plasmas, however O(N^2) work complexity inhibits its widespread use. We show that with advanced numerical methods and GPU hardware this cost can be effectively mitigated. This paper extends previous work on a conservative, high order accurate, finite element discretization with adaptive mesh refinement of the Landau operator, with extensions to GPU hardware and implementations in both the CUDA and Kokkos programmin"},"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":"2104.10000","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.plasm-ph","submitted_at":"2021-04-07T16:48:16Z","cross_cats_sorted":[],"title_canon_sha256":"d3377738c985b9c9442a7a492123f2b2770191d09cd6ddb97e32399ffe866d13","abstract_canon_sha256":"65c61ad8ac78b3eb52b069fbc39af18f4560582f7146ade5a3110c90f7e8df6c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:17:35.837238Z","signature_b64":"GrGU+AnBA3bhsKujRXHLBWmRg0T9c/DBRGqZvfyL0rtXAbmII0KnDUa2HhfzA50SnjE4plirAdSeQA1kM0PoAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"182bc41a467020ba325d026091717918ce33be9806751a8067bc92562da57bdc","last_reissued_at":"2026-07-05T06:17:35.836821Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:17:35.836821Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Exascale Landau collision operator in the Cuda programming model applied to thermal quench plasmas","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.plasm-ph","authors_text":"D. P. Brennan, M. F. Adams, M. G. Knepley, P. Wang","submitted_at":"2021-04-07T16:48:16Z","abstract_excerpt":"Collisional processes are critical in the understanding of non-Maxwellian plasmas. The Landau form of the Fokker-Planck equation is the gold standard for modeling collisions in most plasmas, however O(N^2) work complexity inhibits its widespread use. We show that with advanced numerical methods and GPU hardware this cost can be effectively mitigated. This paper extends previous work on a conservative, high order accurate, finite element discretization with adaptive mesh refinement of the Landau operator, with extensions to GPU hardware and implementations in both the CUDA and Kokkos programmin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.10000","kind":"arxiv","version":3},"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/2104.10000/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":"2104.10000","created_at":"2026-07-05T06:17:35.836879+00:00"},{"alias_kind":"arxiv_version","alias_value":"2104.10000v3","created_at":"2026-07-05T06:17:35.836879+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.10000","created_at":"2026-07-05T06:17:35.836879+00:00"},{"alias_kind":"pith_short_12","alias_value":"DAV4IGSGOAQL","created_at":"2026-07-05T06:17:35.836879+00:00"},{"alias_kind":"pith_short_16","alias_value":"DAV4IGSGOAQLUMS5","created_at":"2026-07-05T06:17:35.836879+00:00"},{"alias_kind":"pith_short_8","alias_value":"DAV4IGSG","created_at":"2026-07-05T06:17:35.836879+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/DAV4IGSGOAQLUMS5AJQJC4LZDD","json":"https://pith.science/pith/DAV4IGSGOAQLUMS5AJQJC4LZDD.json","graph_json":"https://pith.science/api/pith-number/DAV4IGSGOAQLUMS5AJQJC4LZDD/graph.json","events_json":"https://pith.science/api/pith-number/DAV4IGSGOAQLUMS5AJQJC4LZDD/events.json","paper":"https://pith.science/paper/DAV4IGSG"},"agent_actions":{"view_html":"https://pith.science/pith/DAV4IGSGOAQLUMS5AJQJC4LZDD","download_json":"https://pith.science/pith/DAV4IGSGOAQLUMS5AJQJC4LZDD.json","view_paper":"https://pith.science/paper/DAV4IGSG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2104.10000&json=true","fetch_graph":"https://pith.science/api/pith-number/DAV4IGSGOAQLUMS5AJQJC4LZDD/graph.json","fetch_events":"https://pith.science/api/pith-number/DAV4IGSGOAQLUMS5AJQJC4LZDD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DAV4IGSGOAQLUMS5AJQJC4LZDD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DAV4IGSGOAQLUMS5AJQJC4LZDD/action/storage_attestation","attest_author":"https://pith.science/pith/DAV4IGSGOAQLUMS5AJQJC4LZDD/action/author_attestation","sign_citation":"https://pith.science/pith/DAV4IGSGOAQLUMS5AJQJC4LZDD/action/citation_signature","submit_replication":"https://pith.science/pith/DAV4IGSGOAQLUMS5AJQJC4LZDD/action/replication_record"}},"created_at":"2026-07-05T06:17:35.836879+00:00","updated_at":"2026-07-05T06:17:35.836879+00:00"}