{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:MEC2Y7O3MC3SM5WLOXX2E24CRO","short_pith_number":"pith:MEC2Y7O3","canonical_record":{"source":{"id":"2502.20412","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CE","submitted_at":"2025-02-21T10:09:00Z","cross_cats_sorted":["cs.DC","physics.ao-ph"],"title_canon_sha256":"2c9c51473850c75577cff4579d7357128d631980841d2f185980ee0763a2129c","abstract_canon_sha256":"03408f74094e9649737bd0f329f022dd8cec875c14f7b1ecd251981c22fce42d"},"schema_version":"1.0"},"canonical_sha256":"6105ac7ddb60b72676cb75efa26b828b936f484a5da8dedb8da25cc0894f0d22","source":{"kind":"arxiv","id":"2502.20412","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.20412","created_at":"2026-07-05T10:21:32Z"},{"alias_kind":"arxiv_version","alias_value":"2502.20412v1","created_at":"2026-07-05T10:21:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.20412","created_at":"2026-07-05T10:21:32Z"},{"alias_kind":"pith_short_12","alias_value":"MEC2Y7O3MC3S","created_at":"2026-07-05T10:21:32Z"},{"alias_kind":"pith_short_16","alias_value":"MEC2Y7O3MC3SM5WL","created_at":"2026-07-05T10:21:32Z"},{"alias_kind":"pith_short_8","alias_value":"MEC2Y7O3","created_at":"2026-07-05T10:21:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:MEC2Y7O3MC3SM5WLOXX2E24CRO","target":"record","payload":{"canonical_record":{"source":{"id":"2502.20412","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CE","submitted_at":"2025-02-21T10:09:00Z","cross_cats_sorted":["cs.DC","physics.ao-ph"],"title_canon_sha256":"2c9c51473850c75577cff4579d7357128d631980841d2f185980ee0763a2129c","abstract_canon_sha256":"03408f74094e9649737bd0f329f022dd8cec875c14f7b1ecd251981c22fce42d"},"schema_version":"1.0"},"canonical_sha256":"6105ac7ddb60b72676cb75efa26b828b936f484a5da8dedb8da25cc0894f0d22","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:21:32.539224Z","signature_b64":"U5aADvNxlLNrWrpjWPfbInRRyah8ZizauxVqNh0KV3Y4gxTcJevxgFrPqw94gSmRPRssH+cj6xZMlMLBezD3Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6105ac7ddb60b72676cb75efa26b828b936f484a5da8dedb8da25cc0894f0d22","last_reissued_at":"2026-07-05T10:21:32.538712Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:21:32.538712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2502.20412","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:21:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GCO99fUGO6uqSCc/B9zkgJK5QzTgf6re+6KFuO6GNUjr1xsiiNOneUQbovWnUsT0xfXMfG0H9rJankjZXrZcBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T18:39:12.504220Z"},"content_sha256":"d37d5f707be41a168e3163f0474f311d8bff39cf32b34a40e9629d21bb9e333d","schema_version":"1.0","event_id":"sha256:d37d5f707be41a168e3163f0474f311d8bff39cf32b34a40e9629d21bb9e333d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:MEC2Y7O3MC3SM5WLOXX2E24CRO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Accelerating the Dutch Atmospheric Large-Eddy Simulation (DALES) model with OpenACC","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["cs.DC","physics.ao-ph"],"primary_cat":"cs.CE","authors_text":"Alessio Sclocco, Caspar Jungbacker, Fredrik Jansson, Gijs van den Oord, Laurent Soucasse, Lucas Esclapez, Pedro Costa, Stephan R. de Roode","submitted_at":"2025-02-21T10:09:00Z","abstract_excerpt":"This paper presents the GPU porting through OpenACC directives of the Dutch Atmospheric Large-Eddy Simulation (DALES) application, a high-resolution atmospheric model. The code is written in Fortran~90 and features parallel (distributed) execution through spatial domain decomposition. We assess the performance of the GPU offloading, comparing the time-to-solution on regular and accelerated HPC nodes. %comparing the computational time between distributed and accelerated nodes. A weak scaling analysis is conducted and portability across NVIDIA A100 and H100 hardware %and AMD hardware is discusse"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.20412","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/2502.20412/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:21:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"f7CvjJKzjhDUXWW0d0pUPunZS3V+WRQegVYVcgMO8eyhlZ4h1CdYOEp8OPFC5+301n7tEIcdXuk0HF+oejKhDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T18:39:12.504547Z"},"content_sha256":"4a490018d267c8c7083e73e8b434d19543b4c09c2497a2c4d8513eff2498cb00","schema_version":"1.0","event_id":"sha256:4a490018d267c8c7083e73e8b434d19543b4c09c2497a2c4d8513eff2498cb00"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MEC2Y7O3MC3SM5WLOXX2E24CRO/bundle.json","state_url":"https://pith.science/pith/MEC2Y7O3MC3SM5WLOXX2E24CRO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MEC2Y7O3MC3SM5WLOXX2E24CRO/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-23T18:39:12Z","links":{"resolver":"https://pith.science/pith/MEC2Y7O3MC3SM5WLOXX2E24CRO","bundle":"https://pith.science/pith/MEC2Y7O3MC3SM5WLOXX2E24CRO/bundle.json","state":"https://pith.science/pith/MEC2Y7O3MC3SM5WLOXX2E24CRO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MEC2Y7O3MC3SM5WLOXX2E24CRO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:MEC2Y7O3MC3SM5WLOXX2E24CRO","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"03408f74094e9649737bd0f329f022dd8cec875c14f7b1ecd251981c22fce42d","cross_cats_sorted":["cs.DC","physics.ao-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CE","submitted_at":"2025-02-21T10:09:00Z","title_canon_sha256":"2c9c51473850c75577cff4579d7357128d631980841d2f185980ee0763a2129c"},"schema_version":"1.0","source":{"id":"2502.20412","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2502.20412","created_at":"2026-07-05T10:21:32Z"},{"alias_kind":"arxiv_version","alias_value":"2502.20412v1","created_at":"2026-07-05T10:21:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2502.20412","created_at":"2026-07-05T10:21:32Z"},{"alias_kind":"pith_short_12","alias_value":"MEC2Y7O3MC3S","created_at":"2026-07-05T10:21:32Z"},{"alias_kind":"pith_short_16","alias_value":"MEC2Y7O3MC3SM5WL","created_at":"2026-07-05T10:21:32Z"},{"alias_kind":"pith_short_8","alias_value":"MEC2Y7O3","created_at":"2026-07-05T10:21:32Z"}],"graph_snapshots":[{"event_id":"sha256:4a490018d267c8c7083e73e8b434d19543b4c09c2497a2c4d8513eff2498cb00","target":"graph","created_at":"2026-07-05T10:21:32Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2502.20412/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper presents the GPU porting through OpenACC directives of the Dutch Atmospheric Large-Eddy Simulation (DALES) application, a high-resolution atmospheric model. The code is written in Fortran~90 and features parallel (distributed) execution through spatial domain decomposition. We assess the performance of the GPU offloading, comparing the time-to-solution on regular and accelerated HPC nodes. %comparing the computational time between distributed and accelerated nodes. A weak scaling analysis is conducted and portability across NVIDIA A100 and H100 hardware %and AMD hardware is discusse","authors_text":"Alessio Sclocco, Caspar Jungbacker, Fredrik Jansson, Gijs van den Oord, Laurent Soucasse, Lucas Esclapez, Pedro Costa, Stephan R. de Roode","cross_cats":["cs.DC","physics.ao-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CE","submitted_at":"2025-02-21T10:09:00Z","title":"Accelerating the Dutch Atmospheric Large-Eddy Simulation (DALES) model with OpenACC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2502.20412","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d37d5f707be41a168e3163f0474f311d8bff39cf32b34a40e9629d21bb9e333d","target":"record","created_at":"2026-07-05T10:21:32Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"03408f74094e9649737bd0f329f022dd8cec875c14f7b1ecd251981c22fce42d","cross_cats_sorted":["cs.DC","physics.ao-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.CE","submitted_at":"2025-02-21T10:09:00Z","title_canon_sha256":"2c9c51473850c75577cff4579d7357128d631980841d2f185980ee0763a2129c"},"schema_version":"1.0","source":{"id":"2502.20412","kind":"arxiv","version":1}},"canonical_sha256":"6105ac7ddb60b72676cb75efa26b828b936f484a5da8dedb8da25cc0894f0d22","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6105ac7ddb60b72676cb75efa26b828b936f484a5da8dedb8da25cc0894f0d22","first_computed_at":"2026-07-05T10:21:32.538712Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:21:32.538712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"U5aADvNxlLNrWrpjWPfbInRRyah8ZizauxVqNh0KV3Y4gxTcJevxgFrPqw94gSmRPRssH+cj6xZMlMLBezD3Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T10:21:32.539224Z","signed_message":"canonical_sha256_bytes"},"source_id":"2502.20412","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d37d5f707be41a168e3163f0474f311d8bff39cf32b34a40e9629d21bb9e333d","sha256:4a490018d267c8c7083e73e8b434d19543b4c09c2497a2c4d8513eff2498cb00"],"state_sha256":"fb3bd7e1b5a327a44b68fc69bdbbea413823799285b9593adc1a9cfd1b680446"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pcLR8dYDHwPf/q6uKXTyG2BtDgWR1hn93gJOiLnKREAJ7D63cb9UZtEuXDDF3Sjt0XEU4kCgVEul3OOAnKD2Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T18:39:12.508236Z","bundle_sha256":"6ceb351b234b9cc4a01ae5a0ab4f47b00eb469880e4f1c0e4384e40145203fe9"}}