{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:X4N4BOQGQZL2MQZG4CQWY2H5WW","short_pith_number":"pith:X4N4BOQG","schema_version":"1.0","canonical_sha256":"bf1bc0ba068657a64326e0a16c68fdb59b5d25088edc92b0d7fad2c7d4b3b52c","source":{"kind":"arxiv","id":"1104.4874","version":2},"attestation_state":"computed","paper":{"title":"LIKWID: Lightweight Performance Tools","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.PF"],"primary_cat":"cs.DC","authors_text":"Georg Hager, Gerhard Wellein, Jan Treibig","submitted_at":"2011-04-26T09:43:46Z","abstract_excerpt":"Exploiting the performance of today's microprocessors requires intimate knowledge of the microarchitecture as well as an awareness of the ever-growing complexity in thread and cache topology. LIKWID is a set of command line utilities that addresses four key problems: Probing the thread and cache topology of a shared-memory node, enforcing thread-core affinity on a program, measuring performance counter metrics, and microbenchmarking for reliable upper performance bounds. Moreover, it includes a mpirun wrapper allowing for portable thread-core affinity in MPI and hybrid MPI/threaded application"},"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":"1104.4874","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2011-04-26T09:43:46Z","cross_cats_sorted":["cs.PF"],"title_canon_sha256":"3c749fbb68da29d59c420699c6684aa5fd993f6bcd6d25e505a1e5e23537e3f0","abstract_canon_sha256":"e4b896a69c0980fa7bcf3bbed854579c93bcb9622006dff1eadc756f4f5c798d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:37:09.195700Z","signature_b64":"We6/ODT21jjRshdPVzqZCo6DLY+d03euAVhRNm5oKIG8NON7WukYdCdZrHgpOe/bG5tOTD/Wx7UoeUnxCdgXCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bf1bc0ba068657a64326e0a16c68fdb59b5d25088edc92b0d7fad2c7d4b3b52c","last_reissued_at":"2026-05-18T03:37:09.195088Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:37:09.195088Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"LIKWID: Lightweight Performance Tools","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.PF"],"primary_cat":"cs.DC","authors_text":"Georg Hager, Gerhard Wellein, Jan Treibig","submitted_at":"2011-04-26T09:43:46Z","abstract_excerpt":"Exploiting the performance of today's microprocessors requires intimate knowledge of the microarchitecture as well as an awareness of the ever-growing complexity in thread and cache topology. LIKWID is a set of command line utilities that addresses four key problems: Probing the thread and cache topology of a shared-memory node, enforcing thread-core affinity on a program, measuring performance counter metrics, and microbenchmarking for reliable upper performance bounds. Moreover, it includes a mpirun wrapper allowing for portable thread-core affinity in MPI and hybrid MPI/threaded application"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.4874","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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":"1104.4874","created_at":"2026-05-18T03:37:09.195196+00:00"},{"alias_kind":"arxiv_version","alias_value":"1104.4874v2","created_at":"2026-05-18T03:37:09.195196+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.4874","created_at":"2026-05-18T03:37:09.195196+00:00"},{"alias_kind":"pith_short_12","alias_value":"X4N4BOQGQZL2","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_16","alias_value":"X4N4BOQGQZL2MQZG","created_at":"2026-05-18T12:26:44.992195+00:00"},{"alias_kind":"pith_short_8","alias_value":"X4N4BOQG","created_at":"2026-05-18T12:26:44.992195+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/X4N4BOQGQZL2MQZG4CQWY2H5WW","json":"https://pith.science/pith/X4N4BOQGQZL2MQZG4CQWY2H5WW.json","graph_json":"https://pith.science/api/pith-number/X4N4BOQGQZL2MQZG4CQWY2H5WW/graph.json","events_json":"https://pith.science/api/pith-number/X4N4BOQGQZL2MQZG4CQWY2H5WW/events.json","paper":"https://pith.science/paper/X4N4BOQG"},"agent_actions":{"view_html":"https://pith.science/pith/X4N4BOQGQZL2MQZG4CQWY2H5WW","download_json":"https://pith.science/pith/X4N4BOQGQZL2MQZG4CQWY2H5WW.json","view_paper":"https://pith.science/paper/X4N4BOQG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1104.4874&json=true","fetch_graph":"https://pith.science/api/pith-number/X4N4BOQGQZL2MQZG4CQWY2H5WW/graph.json","fetch_events":"https://pith.science/api/pith-number/X4N4BOQGQZL2MQZG4CQWY2H5WW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/X4N4BOQGQZL2MQZG4CQWY2H5WW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/X4N4BOQGQZL2MQZG4CQWY2H5WW/action/storage_attestation","attest_author":"https://pith.science/pith/X4N4BOQGQZL2MQZG4CQWY2H5WW/action/author_attestation","sign_citation":"https://pith.science/pith/X4N4BOQGQZL2MQZG4CQWY2H5WW/action/citation_signature","submit_replication":"https://pith.science/pith/X4N4BOQGQZL2MQZG4CQWY2H5WW/action/replication_record"}},"created_at":"2026-05-18T03:37:09.195196+00:00","updated_at":"2026-05-18T03:37:09.195196+00:00"}