{"id":"https://openalex.org/W4416794662","doi":"https://doi.org/10.1007/s42514-025-00259-6","title":"Qklu: a two-dimensional block-cyclic sparse direct solver","display_name":"Qklu: a two-dimensional block-cyclic sparse direct solver","publication_year":2025,"publication_date":"2025-11-28","ids":{"openalex":"https://openalex.org/W4416794662","doi":"https://doi.org/10.1007/s42514-025-00259-6"},"language":"en","primary_location":{"id":"doi:10.1007/s42514-025-00259-6","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s42514-025-00259-6","pdf_url":null,"source":{"id":"https://openalex.org/S4210190911","display_name":"CCF Transactions on High Performance Computing","issn_l":"2524-4922","issn":["2524-4922","2524-4930"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"CCF Transactions on High Performance Computing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5120525610","display_name":"Renqian Wan","orcid":null},"institutions":[{"id":"https://openalex.org/I116265982","display_name":"Qinghai University","ror":"https://ror.org/05h33bt13","country_code":"CN","type":"education","lineage":["https://openalex.org/I116265982"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Renqian Wan","raw_affiliation_strings":["School of Computer Technology and Application, Qinghai University, Xining, 810016, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Technology and Application, Qinghai University, Xining, 810016, China","institution_ids":["https://openalex.org/I116265982"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079865276","display_name":"Jianqiang Huang","orcid":"https://orcid.org/0000-0001-5735-2910"},"institutions":[{"id":"https://openalex.org/I116265982","display_name":"Qinghai University","ror":"https://ror.org/05h33bt13","country_code":"CN","type":"education","lineage":["https://openalex.org/I116265982"]},{"id":"https://openalex.org/I4210151535","display_name":"Qinghai Provincial Peoples Hospital","ror":"https://ror.org/04vtzbx16","country_code":"CN","type":"healthcare","lineage":["https://openalex.org/I4210151535"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jianqiang Huang","raw_affiliation_strings":["Intelligent Computing and Application Laboratory of Qinghai Province, Qinghai University, Xining, 810016, China","Qinghai Provincial Green Computing Power Engineering Technology Research Center, Xining, 810016, China","School of Computer Technology and Application, Qinghai University, Xining, 810016, China"],"affiliations":[{"raw_affiliation_string":"Intelligent Computing and Application Laboratory of Qinghai Province, Qinghai University, Xining, 810016, China","institution_ids":["https://openalex.org/I116265982"]},{"raw_affiliation_string":"Qinghai Provincial Green Computing Power Engineering Technology Research Center, Xining, 810016, China","institution_ids":["https://openalex.org/I4210151535"]},{"raw_affiliation_string":"School of Computer Technology and Application, Qinghai University, Xining, 810016, China","institution_ids":["https://openalex.org/I116265982"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003261630","display_name":"Haodong Bian","orcid":"https://orcid.org/0000-0003-0907-288X"},"institutions":[{"id":"https://openalex.org/I116265982","display_name":"Qinghai University","ror":"https://ror.org/05h33bt13","country_code":"CN","type":"education","lineage":["https://openalex.org/I116265982"]},{"id":"https://openalex.org/I4210151535","display_name":"Qinghai Provincial Peoples Hospital","ror":"https://ror.org/04vtzbx16","country_code":"CN","type":"healthcare","lineage":["https://openalex.org/I4210151535"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Haodong Bian","raw_affiliation_strings":["Intelligent Computing and Application Laboratory of Qinghai Province, Qinghai University, Xining, 810016, China","Qinghai Provincial Green Computing Power Engineering Technology Research Center, Xining, 810016, China","School of Computer Technology and Application, Qinghai University, Xining, 810016, China"],"affiliations":[{"raw_affiliation_string":"Intelligent Computing and Application Laboratory of Qinghai Province, Qinghai University, Xining, 810016, China","institution_ids":["https://openalex.org/I116265982"]},{"raw_affiliation_string":"Qinghai Provincial Green Computing Power Engineering Technology Research Center, Xining, 810016, China","institution_ids":["https://openalex.org/I4210151535"]},{"raw_affiliation_string":"School of Computer Technology and Application, Qinghai University, Xining, 810016, China","institution_ids":["https://openalex.org/I116265982"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5120525610"],"corresponding_institution_ids":["https://openalex.org/I116265982"],"apc_list":{"value":2190,"currency":"EUR","value_usd":2790},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.39863608,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"8","issue":"1","first_page":"120","last_page":"131"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.5756000280380249,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.5756000280380249,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10792","display_name":"Matrix Theory and Algorithms","score":0.30630001425743103,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11697","display_name":"Numerical Methods and Algorithms","score":0.0284000001847744,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/multithreading","display_name":"Multithreading","score":0.7360000014305115},{"id":"https://openalex.org/keywords/sparse-matrix","display_name":"Sparse matrix","score":0.6794000267982483},{"id":"https://openalex.org/keywords/speedup","display_name":"Speedup","score":0.6751000285148621},{"id":"https://openalex.org/keywords/leverage","display_name":"Leverage (statistics)","score":0.6485999822616577},{"id":"https://openalex.org/keywords/solver","display_name":"Solver","score":0.6449999809265137},{"id":"https://openalex.org/keywords/row","display_name":"Row","score":0.5069000124931335},{"id":"https://openalex.org/keywords/thread","display_name":"Thread (computing)","score":0.48019999265670776},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.43059998750686646},{"id":"https://openalex.org/keywords/scheduling","display_name":"Scheduling (production processes)","score":0.42910000681877136}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7940999865531921},{"id":"https://openalex.org/C201410400","wikidata":"https://www.wikidata.org/wiki/Q1064412","display_name":"Multithreading","level":3,"score":0.7360000014305115},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.722000002861023},{"id":"https://openalex.org/C56372850","wikidata":"https://www.wikidata.org/wiki/Q1050404","display_name":"Sparse matrix","level":3,"score":0.6794000267982483},{"id":"https://openalex.org/C68339613","wikidata":"https://www.wikidata.org/wiki/Q1549489","display_name":"Speedup","level":2,"score":0.6751000285148621},{"id":"https://openalex.org/C153083717","wikidata":"https://www.wikidata.org/wiki/Q6535263","display_name":"Leverage (statistics)","level":2,"score":0.6485999822616577},{"id":"https://openalex.org/C2778770139","wikidata":"https://www.wikidata.org/wiki/Q1966904","display_name":"Solver","level":2,"score":0.6449999809265137},{"id":"https://openalex.org/C135598885","wikidata":"https://www.wikidata.org/wiki/Q1366302","display_name":"Row","level":2,"score":0.5069000124931335},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5054000020027161},{"id":"https://openalex.org/C138101251","wikidata":"https://www.wikidata.org/wiki/Q213092","display_name":"Thread (computing)","level":2,"score":0.48019999265670776},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.43059998750686646},{"id":"https://openalex.org/C206729178","wikidata":"https://www.wikidata.org/wiki/Q2271896","display_name":"Scheduling (production processes)","level":2,"score":0.42910000681877136},{"id":"https://openalex.org/C124066611","wikidata":"https://www.wikidata.org/wiki/Q28684319","display_name":"Sparse approximation","level":2,"score":0.37130001187324524},{"id":"https://openalex.org/C106487976","wikidata":"https://www.wikidata.org/wiki/Q685816","display_name":"Matrix (chemical analysis)","level":2,"score":0.3370000123977661},{"id":"https://openalex.org/C2989134064","wikidata":"https://www.wikidata.org/wiki/Q288510","display_name":"Execution time","level":2,"score":0.3255000114440918},{"id":"https://openalex.org/C2780513914","wikidata":"https://www.wikidata.org/wiki/Q18210350","display_name":"Bottleneck","level":2,"score":0.32409998774528503},{"id":"https://openalex.org/C162319229","wikidata":"https://www.wikidata.org/wiki/Q175263","display_name":"Data structure","level":2,"score":0.3199999928474426},{"id":"https://openalex.org/C2778915421","wikidata":"https://www.wikidata.org/wiki/Q3643177","display_name":"Performance improvement","level":2,"score":0.31859999895095825},{"id":"https://openalex.org/C459310","wikidata":"https://www.wikidata.org/wiki/Q117801","display_name":"Computational science","level":1,"score":0.29899999499320984},{"id":"https://openalex.org/C85717602","wikidata":"https://www.wikidata.org/wiki/Q82178","display_name":"Simultaneous multithreading","level":4,"score":0.296099990606308},{"id":"https://openalex.org/C49154492","wikidata":"https://www.wikidata.org/wiki/Q5300","display_name":"Central processing unit","level":2,"score":0.2865999937057495},{"id":"https://openalex.org/C6802819","wikidata":"https://www.wikidata.org/wiki/Q1072174","display_name":"Linear system","level":2,"score":0.2745000123977661},{"id":"https://openalex.org/C3018263672","wikidata":"https://www.wikidata.org/wiki/Q1296251","display_name":"Efficient algorithm","level":2,"score":0.27129998803138733},{"id":"https://openalex.org/C34736171","wikidata":"https://www.wikidata.org/wiki/Q918333","display_name":"Preprocessor","level":2,"score":0.26989999413490295},{"id":"https://openalex.org/C97686452","wikidata":"https://www.wikidata.org/wiki/Q7604153","display_name":"Static analysis","level":2,"score":0.266400009393692}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/s42514-025-00259-6","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s42514-025-00259-6","pdf_url":null,"source":{"id":"https://openalex.org/S4210190911","display_name":"CCF Transactions on High Performance Computing","issn_l":"2524-4922","issn":["2524-4922","2524-4930"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"CCF Transactions on High Performance Computing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":37,"referenced_works":["https://openalex.org/W625657276","https://openalex.org/W1969526019","https://openalex.org/W1970009422","https://openalex.org/W1979765472","https://openalex.org/W1993166013","https://openalex.org/W1998276913","https://openalex.org/W1998894100","https://openalex.org/W2003105834","https://openalex.org/W2011832776","https://openalex.org/W2017431061","https://openalex.org/W2026725148","https://openalex.org/W2034036349","https://openalex.org/W2038205735","https://openalex.org/W2051917325","https://openalex.org/W2053266474","https://openalex.org/W2055094346","https://openalex.org/W2058569192","https://openalex.org/W2063675347","https://openalex.org/W2069849438","https://openalex.org/W2070299075","https://openalex.org/W2074093855","https://openalex.org/W2075490698","https://openalex.org/W2077309453","https://openalex.org/W2082222857","https://openalex.org/W2087618354","https://openalex.org/W2128676746","https://openalex.org/W2141331848","https://openalex.org/W2160774872","https://openalex.org/W2469975815","https://openalex.org/W2887698420","https://openalex.org/W2942021433","https://openalex.org/W3007849603","https://openalex.org/W3173589482","https://openalex.org/W3212893044","https://openalex.org/W4205471792","https://openalex.org/W4388662066","https://openalex.org/W4388664805"],"related_works":[],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-11-28T00:00:00"}
