{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:INUOVY5RIA7NOZD6YS5YJAHD4D","short_pith_number":"pith:INUOVY5R","canonical_record":{"source":{"id":"1010.4782","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2010-10-22T19:20:43Z","cross_cats_sorted":[],"title_canon_sha256":"21b2e842807a67972348b99881fd69b0434a64f1d4f6e5f81f0c0c0dfd585677","abstract_canon_sha256":"283449fe3527c81559654c877e9cfc61c983103dd75b38f38f34040bac927f46"},"schema_version":"1.0"},"canonical_sha256":"4368eae3b1403ed7647ec4bb8480e3e0d05227a55649e1fb959445b59c9ef8cf","source":{"kind":"arxiv","id":"1010.4782","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.4782","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"arxiv_version","alias_value":"1010.4782v2","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.4782","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"pith_short_12","alias_value":"INUOVY5RIA7N","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"INUOVY5RIA7NOZD6","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"INUOVY5R","created_at":"2026-05-18T12:26:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:INUOVY5RIA7NOZD6YS5YJAHD4D","target":"record","payload":{"canonical_record":{"source":{"id":"1010.4782","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2010-10-22T19:20:43Z","cross_cats_sorted":[],"title_canon_sha256":"21b2e842807a67972348b99881fd69b0434a64f1d4f6e5f81f0c0c0dfd585677","abstract_canon_sha256":"283449fe3527c81559654c877e9cfc61c983103dd75b38f38f34040bac927f46"},"schema_version":"1.0"},"canonical_sha256":"4368eae3b1403ed7647ec4bb8480e3e0d05227a55649e1fb959445b59c9ef8cf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:38:15.198109Z","signature_b64":"rNEoMYzq4zn0XRRHFh3FJoWJJuqt3HGgW8udHt7ak+Gk6u2uxxWHyG9lfMbCS8/CUNMzGRRxaog0UOClvdZ3DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4368eae3b1403ed7647ec4bb8480e3e0d05227a55649e1fb959445b59c9ef8cf","last_reissued_at":"2026-05-18T04:38:15.197680Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:38:15.197680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1010.4782","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:38:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Q8mOL6wwFPdl/cQxbU1CljkcZ1n7ELx0IjQ77PQDR4iKMjhVGpXcDbnueTM8DHdSoheUN+PRA01LDudYaKujBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:18:30.581618Z"},"content_sha256":"57885dbd5dca49f91dd0857962320dfc02701eb878f50dc83837dfee7adc11e3","schema_version":"1.0","event_id":"sha256:57885dbd5dca49f91dd0857962320dfc02701eb878f50dc83837dfee7adc11e3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:INUOVY5RIA7NOZD6YS5YJAHD4D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Multi GPU Performance of Conjugate Gradient Algorithm with Staggered Fermions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-lat","authors_text":"Hyung-Jin Kim, Weonjong Lee","submitted_at":"2010-10-22T19:20:43Z","abstract_excerpt":"We report results of the performance test of GPUs obtained using the conjugate gradient (CG) algorithm for staggered fermions on the MILC fine lattice ($28^3 \\times 96$). We use GPUs of nVIDIA GTX 295 model for the test. When we turn off the MPI communication and use only a single GPU, the performance is 35 giga flops in double precision, which corresponds to 47% of the peak. When we turn on the MPI communication and use multi-GPUs, the performance is reduced down to 12.3 giga flops. The data transfer through the infiniband network and PCI-E bus I/O is a main bottle neck. We suggest two potent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.4782","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:38:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3pAQQyufBEl/Zq5gf9mJV5ueHldwvte145uEugUfHB8tc7yh8P1I2Ng0xTbhutGJUVng0t0oEw1o3NLhrcQzDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T00:18:30.581967Z"},"content_sha256":"c87f5ebaff80c4464aa8b5c28431f7e9f41ff173cb7235f87b179dfd96a63091","schema_version":"1.0","event_id":"sha256:c87f5ebaff80c4464aa8b5c28431f7e9f41ff173cb7235f87b179dfd96a63091"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/INUOVY5RIA7NOZD6YS5YJAHD4D/bundle.json","state_url":"https://pith.science/pith/INUOVY5RIA7NOZD6YS5YJAHD4D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/INUOVY5RIA7NOZD6YS5YJAHD4D/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":"2026-05-28T00:18:30Z","links":{"resolver":"https://pith.science/pith/INUOVY5RIA7NOZD6YS5YJAHD4D","bundle":"https://pith.science/pith/INUOVY5RIA7NOZD6YS5YJAHD4D/bundle.json","state":"https://pith.science/pith/INUOVY5RIA7NOZD6YS5YJAHD4D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/INUOVY5RIA7NOZD6YS5YJAHD4D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:INUOVY5RIA7NOZD6YS5YJAHD4D","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":"283449fe3527c81559654c877e9cfc61c983103dd75b38f38f34040bac927f46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2010-10-22T19:20:43Z","title_canon_sha256":"21b2e842807a67972348b99881fd69b0434a64f1d4f6e5f81f0c0c0dfd585677"},"schema_version":"1.0","source":{"id":"1010.4782","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1010.4782","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"arxiv_version","alias_value":"1010.4782v2","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1010.4782","created_at":"2026-05-18T04:38:15Z"},{"alias_kind":"pith_short_12","alias_value":"INUOVY5RIA7N","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"INUOVY5RIA7NOZD6","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"INUOVY5R","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:c87f5ebaff80c4464aa8b5c28431f7e9f41ff173cb7235f87b179dfd96a63091","target":"graph","created_at":"2026-05-18T04:38:15Z","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"},"paper":{"abstract_excerpt":"We report results of the performance test of GPUs obtained using the conjugate gradient (CG) algorithm for staggered fermions on the MILC fine lattice ($28^3 \\times 96$). We use GPUs of nVIDIA GTX 295 model for the test. When we turn off the MPI communication and use only a single GPU, the performance is 35 giga flops in double precision, which corresponds to 47% of the peak. When we turn on the MPI communication and use multi-GPUs, the performance is reduced down to 12.3 giga flops. The data transfer through the infiniband network and PCI-E bus I/O is a main bottle neck. We suggest two potent","authors_text":"Hyung-Jin Kim, Weonjong Lee","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2010-10-22T19:20:43Z","title":"Multi GPU Performance of Conjugate Gradient Algorithm with Staggered Fermions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1010.4782","kind":"arxiv","version":2},"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":"sha256:57885dbd5dca49f91dd0857962320dfc02701eb878f50dc83837dfee7adc11e3","target":"record","created_at":"2026-05-18T04:38:15Z","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":"283449fe3527c81559654c877e9cfc61c983103dd75b38f38f34040bac927f46","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-lat","submitted_at":"2010-10-22T19:20:43Z","title_canon_sha256":"21b2e842807a67972348b99881fd69b0434a64f1d4f6e5f81f0c0c0dfd585677"},"schema_version":"1.0","source":{"id":"1010.4782","kind":"arxiv","version":2}},"canonical_sha256":"4368eae3b1403ed7647ec4bb8480e3e0d05227a55649e1fb959445b59c9ef8cf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4368eae3b1403ed7647ec4bb8480e3e0d05227a55649e1fb959445b59c9ef8cf","first_computed_at":"2026-05-18T04:38:15.197680Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:38:15.197680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rNEoMYzq4zn0XRRHFh3FJoWJJuqt3HGgW8udHt7ak+Gk6u2uxxWHyG9lfMbCS8/CUNMzGRRxaog0UOClvdZ3DA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:38:15.198109Z","signed_message":"canonical_sha256_bytes"},"source_id":"1010.4782","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:57885dbd5dca49f91dd0857962320dfc02701eb878f50dc83837dfee7adc11e3","sha256:c87f5ebaff80c4464aa8b5c28431f7e9f41ff173cb7235f87b179dfd96a63091"],"state_sha256":"7806d96f837a70927799fc61309e20984820bb5af4971c7eed1165537c1fd0ac"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OEwq16RYu9Y+xyUtS+1UUorbR2BoXxf26sAQrLZsza7ZaLGpHtbgC+pZOqgWot6myEIhW5tiMm0udc8LFTf8AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T00:18:30.583893Z","bundle_sha256":"56b368bf881d807fccca88f4374709e9d5f4699656fabfc790be4bb94dd57bde"}}