{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6EM5XYZBVMIULZEMANC3H6Q5FL","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":"6799de5907c197d0f11b54499413f0eb201998c15b9db460f5c7271ee6ad6800","cross_cats_sorted":["cs.MS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2018-04-25T13:20:53Z","title_canon_sha256":"57332a9fe865a96bd9db540fabf56c842c00bf77bbb045be81bccd3682537641"},"schema_version":"1.0","source":{"id":"1804.09536","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1804.09536","created_at":"2026-05-18T00:17:31Z"},{"alias_kind":"arxiv_version","alias_value":"1804.09536v1","created_at":"2026-05-18T00:17:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.09536","created_at":"2026-05-18T00:17:31Z"},{"alias_kind":"pith_short_12","alias_value":"6EM5XYZBVMIU","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"6EM5XYZBVMIULZEM","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"6EM5XYZB","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:02dd6b57408acfee47dc093c6b212fb5033929617042c4bb08d7d5524cb83bd2","target":"graph","created_at":"2026-05-18T00:17:31Z","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 present a new method for performing global redistributions of multidimensional arrays essential to parallel fast Fourier (or similar) transforms. Traditional methods use standard all-to-all collective communication of contiguous memory buffers, thus necessary requiring local data realignment steps intermixed in-between redistribution and transform steps. Instead, our method takes advantage of subarray datatypes and generalized all-to-all scatter/gather from the MPI-2 standard to communicate discontiguous memory buffers, effectively eliminating the need for local data realignments. Despite g","authors_text":"David E Keyes, Lisandro Dalcin, Mikael Mortensen","cross_cats":["cs.MS"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2018-04-25T13:20:53Z","title":"Fast parallel multidimensional FFT using advanced MPI"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.09536","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":"sha256:60db0405023cb178efb085c188accf6fb4e509c1feba719f2c0aa19adab37c30","target":"record","created_at":"2026-05-18T00:17:31Z","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":"6799de5907c197d0f11b54499413f0eb201998c15b9db460f5c7271ee6ad6800","cross_cats_sorted":["cs.MS"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2018-04-25T13:20:53Z","title_canon_sha256":"57332a9fe865a96bd9db540fabf56c842c00bf77bbb045be81bccd3682537641"},"schema_version":"1.0","source":{"id":"1804.09536","kind":"arxiv","version":1}},"canonical_sha256":"f119dbe321ab1145e48c0345b3fa1d2adf3d21586b28ce15397d3898da3b45ec","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f119dbe321ab1145e48c0345b3fa1d2adf3d21586b28ce15397d3898da3b45ec","first_computed_at":"2026-05-18T00:17:31.504362Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:31.504362Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MwMoAw3EEMm4D6fZBQDFImjh0FEJ6M3JCA7KpX6vg/5iKaxiOAZyv6dKbMHMfVmRNeu9IKxIKcs1w8pRToDWCA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:31.504998Z","signed_message":"canonical_sha256_bytes"},"source_id":"1804.09536","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:60db0405023cb178efb085c188accf6fb4e509c1feba719f2c0aa19adab37c30","sha256:02dd6b57408acfee47dc093c6b212fb5033929617042c4bb08d7d5524cb83bd2"],"state_sha256":"9147978ea3efdb1dbe1e498cbfd4bf36053357e46844a037a535ec53229e59d5"}