{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:FAG26D3JVGZ5FZOKZIXU5HBJIR","short_pith_number":"pith:FAG26D3J","schema_version":"1.0","canonical_sha256":"280daf0f69a9b3d2e5caca2f4e9c2944673462cc7c0fa0361bc151ab7557a4a1","source":{"kind":"arxiv","id":"2007.11496","version":1},"attestation_state":"computed","paper":{"title":"Collectives in hybrid MPI+MPI code: design, practice and performance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Huan Zhou, Jose Gracia, Naweiluo Zhou, Ralf Schneider","submitted_at":"2020-07-22T15:34:13Z","abstract_excerpt":"The use of hybrid scheme combining the message passing programming models for inter-node parallelism and the shared memory programming models for node-level parallelism is widely spread. Existing extensive practices on hybrid Message Passing Interface (MPI) plus Open Multi-Processing (OpenMP) programming account for its popularity. Nevertheless, strong programming efforts are required to gain performance benefits from the MPI+OpenMP code. An emerging hybrid method that combines MPI and the MPI shared memory model (MPI+MPI) is promising. However, writing an efficient hybrid MPI+MPI program -- e"},"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":"2007.11496","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2020-07-22T15:34:13Z","cross_cats_sorted":[],"title_canon_sha256":"23dd4cfa07572b092d2db8be3d623e44bbcec12fae43dd9faecffb52ad8793e1","abstract_canon_sha256":"6983e778ed6a1e1e6ef5f7040b2b36f9e175caf0bbcf3ff5a2806da066954fec"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:21:26.858295Z","signature_b64":"eVwPnh3Yd96g9BiDnzGVkC4TyGjd9poiUcCLjU4B+OOJsk8X/pEXpbL4Y1cORCFCoPfMDwywzr9fkSs1l7NsCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"280daf0f69a9b3d2e5caca2f4e9c2944673462cc7c0fa0361bc151ab7557a4a1","last_reissued_at":"2026-07-05T01:21:26.857918Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:21:26.857918Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Collectives in hybrid MPI+MPI code: design, practice and performance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.DC","authors_text":"Huan Zhou, Jose Gracia, Naweiluo Zhou, Ralf Schneider","submitted_at":"2020-07-22T15:34:13Z","abstract_excerpt":"The use of hybrid scheme combining the message passing programming models for inter-node parallelism and the shared memory programming models for node-level parallelism is widely spread. Existing extensive practices on hybrid Message Passing Interface (MPI) plus Open Multi-Processing (OpenMP) programming account for its popularity. Nevertheless, strong programming efforts are required to gain performance benefits from the MPI+OpenMP code. An emerging hybrid method that combines MPI and the MPI shared memory model (MPI+MPI) is promising. However, writing an efficient hybrid MPI+MPI program -- e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.11496","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/2007.11496/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":"2007.11496","created_at":"2026-07-05T01:21:26.857969+00:00"},{"alias_kind":"arxiv_version","alias_value":"2007.11496v1","created_at":"2026-07-05T01:21:26.857969+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.11496","created_at":"2026-07-05T01:21:26.857969+00:00"},{"alias_kind":"pith_short_12","alias_value":"FAG26D3JVGZ5","created_at":"2026-07-05T01:21:26.857969+00:00"},{"alias_kind":"pith_short_16","alias_value":"FAG26D3JVGZ5FZOK","created_at":"2026-07-05T01:21:26.857969+00:00"},{"alias_kind":"pith_short_8","alias_value":"FAG26D3J","created_at":"2026-07-05T01:21:26.857969+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/FAG26D3JVGZ5FZOKZIXU5HBJIR","json":"https://pith.science/pith/FAG26D3JVGZ5FZOKZIXU5HBJIR.json","graph_json":"https://pith.science/api/pith-number/FAG26D3JVGZ5FZOKZIXU5HBJIR/graph.json","events_json":"https://pith.science/api/pith-number/FAG26D3JVGZ5FZOKZIXU5HBJIR/events.json","paper":"https://pith.science/paper/FAG26D3J"},"agent_actions":{"view_html":"https://pith.science/pith/FAG26D3JVGZ5FZOKZIXU5HBJIR","download_json":"https://pith.science/pith/FAG26D3JVGZ5FZOKZIXU5HBJIR.json","view_paper":"https://pith.science/paper/FAG26D3J","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2007.11496&json=true","fetch_graph":"https://pith.science/api/pith-number/FAG26D3JVGZ5FZOKZIXU5HBJIR/graph.json","fetch_events":"https://pith.science/api/pith-number/FAG26D3JVGZ5FZOKZIXU5HBJIR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FAG26D3JVGZ5FZOKZIXU5HBJIR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FAG26D3JVGZ5FZOKZIXU5HBJIR/action/storage_attestation","attest_author":"https://pith.science/pith/FAG26D3JVGZ5FZOKZIXU5HBJIR/action/author_attestation","sign_citation":"https://pith.science/pith/FAG26D3JVGZ5FZOKZIXU5HBJIR/action/citation_signature","submit_replication":"https://pith.science/pith/FAG26D3JVGZ5FZOKZIXU5HBJIR/action/replication_record"}},"created_at":"2026-07-05T01:21:26.857969+00:00","updated_at":"2026-07-05T01:21:26.857969+00:00"}