{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:X3N4VRSDU4BYT6YUTR547RHGGK","short_pith_number":"pith:X3N4VRSD","schema_version":"1.0","canonical_sha256":"bedbcac643a70389fb149c7bcfc4e632a4ba8fce209364a8389d93d6e10693ce","source":{"kind":"arxiv","id":"1712.00343","version":1},"attestation_state":"computed","paper":{"title":"MPI_XSTAR: MPI-based Parallelization of the XSTAR Photoionization Program","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","cs.DC"],"primary_cat":"astro-ph.HE","authors_text":"(2) MIT, (3) Harvard), Ashkbiz Danehkar (1), Julia C. Lee (3), Michael A. Nowak (2), Randall K. Smith (1) ((1) CfA","submitted_at":"2017-11-28T21:02:06Z","abstract_excerpt":"We describe a program for the parallel implementation of multiple runs of XSTAR, a photoionization code that is used to predict the physical properties of an ionized gas from its emission and/or absorption lines. The parallelization program, called MPI_XSTAR, has been developed and implemented in the C++ language by using the Message Passing Interface (MPI) protocol, a conventional standard of parallel computing. We have benchmarked parallel multiprocessing executions of XSTAR, using MPI_XSTAR, against a serial execution of XSTAR, in terms of the parallelization speedup and the computing resou"},"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":"1712.00343","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-11-28T21:02:06Z","cross_cats_sorted":["astro-ph.IM","cs.DC"],"title_canon_sha256":"33d9bbd25f8867878a927c1643de45d32c42546df0d29c3b4faf282bfdeb4920","abstract_canon_sha256":"c52645bc57ab9c152fa03a525cd7445a8bc9768eb997d5bfe7a001736f7e528f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:26:59.968776Z","signature_b64":"1FLgkOL9ZJcApzyxhJNyp0ASUZD5OIeiy6RGZnF71nIWNckGK2bV7AV36E09COuTsE57M/E2OmFV/rXsozsiBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bedbcac643a70389fb149c7bcfc4e632a4ba8fce209364a8389d93d6e10693ce","last_reissued_at":"2026-05-18T00:26:59.967986Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:26:59.967986Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"MPI_XSTAR: MPI-based Parallelization of the XSTAR Photoionization Program","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","cs.DC"],"primary_cat":"astro-ph.HE","authors_text":"(2) MIT, (3) Harvard), Ashkbiz Danehkar (1), Julia C. Lee (3), Michael A. Nowak (2), Randall K. Smith (1) ((1) CfA","submitted_at":"2017-11-28T21:02:06Z","abstract_excerpt":"We describe a program for the parallel implementation of multiple runs of XSTAR, a photoionization code that is used to predict the physical properties of an ionized gas from its emission and/or absorption lines. The parallelization program, called MPI_XSTAR, has been developed and implemented in the C++ language by using the Message Passing Interface (MPI) protocol, a conventional standard of parallel computing. We have benchmarked parallel multiprocessing executions of XSTAR, using MPI_XSTAR, against a serial execution of XSTAR, in terms of the parallelization speedup and the computing resou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1712.00343","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":""},"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":"1712.00343","created_at":"2026-05-18T00:26:59.968114+00:00"},{"alias_kind":"arxiv_version","alias_value":"1712.00343v1","created_at":"2026-05-18T00:26:59.968114+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1712.00343","created_at":"2026-05-18T00:26:59.968114+00:00"},{"alias_kind":"pith_short_12","alias_value":"X3N4VRSDU4BY","created_at":"2026-05-18T12:31:53.515858+00:00"},{"alias_kind":"pith_short_16","alias_value":"X3N4VRSDU4BYT6YU","created_at":"2026-05-18T12:31:53.515858+00:00"},{"alias_kind":"pith_short_8","alias_value":"X3N4VRSD","created_at":"2026-05-18T12:31:53.515858+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/X3N4VRSDU4BYT6YUTR547RHGGK","json":"https://pith.science/pith/X3N4VRSDU4BYT6YUTR547RHGGK.json","graph_json":"https://pith.science/api/pith-number/X3N4VRSDU4BYT6YUTR547RHGGK/graph.json","events_json":"https://pith.science/api/pith-number/X3N4VRSDU4BYT6YUTR547RHGGK/events.json","paper":"https://pith.science/paper/X3N4VRSD"},"agent_actions":{"view_html":"https://pith.science/pith/X3N4VRSDU4BYT6YUTR547RHGGK","download_json":"https://pith.science/pith/X3N4VRSDU4BYT6YUTR547RHGGK.json","view_paper":"https://pith.science/paper/X3N4VRSD","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1712.00343&json=true","fetch_graph":"https://pith.science/api/pith-number/X3N4VRSDU4BYT6YUTR547RHGGK/graph.json","fetch_events":"https://pith.science/api/pith-number/X3N4VRSDU4BYT6YUTR547RHGGK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/X3N4VRSDU4BYT6YUTR547RHGGK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/X3N4VRSDU4BYT6YUTR547RHGGK/action/storage_attestation","attest_author":"https://pith.science/pith/X3N4VRSDU4BYT6YUTR547RHGGK/action/author_attestation","sign_citation":"https://pith.science/pith/X3N4VRSDU4BYT6YUTR547RHGGK/action/citation_signature","submit_replication":"https://pith.science/pith/X3N4VRSDU4BYT6YUTR547RHGGK/action/replication_record"}},"created_at":"2026-05-18T00:26:59.968114+00:00","updated_at":"2026-05-18T00:26:59.968114+00:00"}