{"id":"https://openalex.org/W2081605270","doi":"https://doi.org/10.1016/j.procs.2014.05.052","title":"The K computer Operations: Experiences and Statistics","display_name":"The K computer Operations: Experiences and Statistics","publication_year":2014,"publication_date":"2014-01-01","ids":{"openalex":"https://openalex.org/W2081605270","doi":"https://doi.org/10.1016/j.procs.2014.05.052","mag":"2081605270"},"language":"en","primary_location":{"id":"doi:10.1016/j.procs.2014.05.052","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.procs.2014.05.052","pdf_url":null,"source":{"id":"https://openalex.org/S120348307","display_name":"Procedia Computer Science","issn_l":"1877-0509","issn":["1877-0509"],"is_oa":true,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Procedia Computer Science","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"diamond","oa_url":"https://doi.org/10.1016/j.procs.2014.05.052","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101289240","display_name":"Keiji Yamamoto","orcid":null},"institutions":[{"id":"https://openalex.org/I4210129730","display_name":"RIKEN Center for Computational Science","ror":"https://ror.org/03r519674","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652","https://openalex.org/I4210129730"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Keiji Yamamoto","raw_affiliation_strings":["Advanced Institute for Computational Science, RIKEN, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Advanced Institute for Computational Science, RIKEN, Japan","institution_ids":["https://openalex.org/I4210129730"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079932269","display_name":"Atsuya Uno","orcid":"https://orcid.org/0009-0002-8449-5196"},"institutions":[{"id":"https://openalex.org/I4210129730","display_name":"RIKEN Center for Computational Science","ror":"https://ror.org/03r519674","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652","https://openalex.org/I4210129730"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Atsuya Uno","raw_affiliation_strings":["Advanced Institute for Computational Science, RIKEN, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Advanced Institute for Computational Science, RIKEN, Japan","institution_ids":["https://openalex.org/I4210129730"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103277015","display_name":"Hitoshi Murai","orcid":"https://orcid.org/0000-0002-6239-3968"},"institutions":[{"id":"https://openalex.org/I4210129730","display_name":"RIKEN Center for Computational Science","ror":"https://ror.org/03r519674","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652","https://openalex.org/I4210129730"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hitoshi Murai","raw_affiliation_strings":["Advanced Institute for Computational Science, RIKEN, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Advanced Institute for Computational Science, RIKEN, Japan","institution_ids":["https://openalex.org/I4210129730"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043831531","display_name":"Toshiyuki Tsukamoto","orcid":"https://orcid.org/0000-0003-3913-0809"},"institutions":[{"id":"https://openalex.org/I4210129730","display_name":"RIKEN Center for Computational Science","ror":"https://ror.org/03r519674","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652","https://openalex.org/I4210129730"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Toshiyuki Tsukamoto","raw_affiliation_strings":["Advanced Institute for Computational Science, RIKEN, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Advanced Institute for Computational Science, RIKEN, Japan","institution_ids":["https://openalex.org/I4210129730"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066167505","display_name":"Fumiyoshi Shoji","orcid":"https://orcid.org/0000-0003-3970-020X"},"institutions":[{"id":"https://openalex.org/I4210129730","display_name":"RIKEN Center for Computational Science","ror":"https://ror.org/03r519674","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652","https://openalex.org/I4210129730"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Fumiyoshi Shoji","raw_affiliation_strings":["Advanced Institute for Computational Science, RIKEN, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Advanced Institute for Computational Science, RIKEN, Japan","institution_ids":["https://openalex.org/I4210129730"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5028804872","display_name":"Shuji Matsui","orcid":null},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shuji Matsui","raw_affiliation_strings":["Fujitsu Limited, Kawasaki, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Limited, Kawasaki, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082950050","display_name":"Ryuichi Sekizawa","orcid":null},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Ryuichi Sekizawa","raw_affiliation_strings":["Fujitsu Limited, Kawasaki, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Limited, Kawasaki, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5068290025","display_name":"Fumichika Sueyasu","orcid":null},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Fumichika Sueyasu","raw_affiliation_strings":["Fujitsu Limited, Kawasaki, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Limited, Kawasaki, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070508721","display_name":"Hiroshi Uchiyama","orcid":"https://orcid.org/0000-0001-8138-9393"},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroshi Uchiyama","raw_affiliation_strings":["Fujitsu Limited, Kawasaki, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Limited, Kawasaki, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018925721","display_name":"Mitsuo Okamoto","orcid":"https://orcid.org/0000-0003-3261-8705"},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Mitsuo Okamoto","raw_affiliation_strings":["Fujitsu Systems West Ltd., Osaka, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Systems West Ltd., Osaka, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023094881","display_name":"Nobuo Ohgushi","orcid":null},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Nobuo Ohgushi","raw_affiliation_strings":["Fujitsu Systems West Ltd., Osaka, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Systems West Ltd., Osaka, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047623824","display_name":"Katsutoshi Takashina","orcid":null},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Katsutoshi Takashina","raw_affiliation_strings":["Fujitsu Systems West Ltd., Osaka, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Fujitsu Systems West Ltd., Osaka, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016227631","display_name":"Daisuke Wakabayashi","orcid":"https://orcid.org/0000-0002-2623-5735"},"institutions":[{"id":"https://openalex.org/I2252096349","display_name":"Fujitsu (Japan)","ror":"https://ror.org/038e2g226","country_code":"JP","type":"company","lineage":["https://openalex.org/I2252096349"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Daisuke Wakabayashi","raw_affiliation_strings":["FUJITSU SSL Ltd., Kawasaki, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"FUJITSU SSL Ltd., Kawasaki, Japan","institution_ids":["https://openalex.org/I2252096349"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103456419","display_name":"Yuki Taguchi","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Yuki Taguchi","raw_affiliation_strings":["SAKURA KCS Corp., Kobe, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"SAKURA KCS Corp., Kobe, Japan","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5064617213","display_name":"Mitsuo Yokokawa","orcid":"https://orcid.org/0000-0003-3790-1243"},"institutions":[{"id":"https://openalex.org/I4210129730","display_name":"RIKEN Center for Computational Science","ror":"https://ror.org/03r519674","country_code":"JP","type":"facility","lineage":["https://openalex.org/I4210110652","https://openalex.org/I4210129730"]},{"id":"https://openalex.org/I65837984","display_name":"Kobe University","ror":"https://ror.org/03tgsfw79","country_code":"JP","type":"education","lineage":["https://openalex.org/I65837984"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Mitsuo Yokokawa","raw_affiliation_strings":["Advanced Institute for Computational Science, RIKEN, Japan","Kobe University, Kobe, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Advanced Institute for Computational Science, RIKEN, Japan","institution_ids":["https://openalex.org/I4210129730"]},{"raw_affiliation_string":"Kobe University, Kobe, Japan","institution_ids":["https://openalex.org/I65837984"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.7722,"has_fulltext":false,"cited_by_count":29,"citation_normalized_percentile":{"value":0.90563715,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"29","issue":null,"first_page":"576","last_page":"585"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.9998999834060669,"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":0.9998999834060669,"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/T11181","display_name":"Advanced Data Storage Technologies","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/T10715","display_name":"Distributed and Parallel Computing Systems","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/computer-science","display_name":"Computer science","score":0.8950687646865845},{"id":"https://openalex.org/keywords/supercomputer","display_name":"Supercomputer","score":0.6982992887496948},{"id":"https://openalex.org/keywords/node","display_name":"Node (physics)","score":0.5820649266242981},{"id":"https://openalex.org/keywords/software","display_name":"Software","score":0.5677484273910522},{"id":"https://openalex.org/keywords/stability","display_name":"Stability (learning theory)","score":0.5079770684242249},{"id":"https://openalex.org/keywords/scale","display_name":"Scale (ratio)","score":0.48424026370048523},{"id":"https://openalex.org/keywords/service","display_name":"Service (business)","score":0.46338069438934326},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.3623868227005005},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.33179980516433716},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.3184472918510437},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.06703975796699524}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8950687646865845},{"id":"https://openalex.org/C83283714","wikidata":"https://www.wikidata.org/wiki/Q121117","display_name":"Supercomputer","level":2,"score":0.6982992887496948},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.5820649266242981},{"id":"https://openalex.org/C2777904410","wikidata":"https://www.wikidata.org/wiki/Q7397","display_name":"Software","level":2,"score":0.5677484273910522},{"id":"https://openalex.org/C112972136","wikidata":"https://www.wikidata.org/wiki/Q7595718","display_name":"Stability (learning theory)","level":2,"score":0.5079770684242249},{"id":"https://openalex.org/C2778755073","wikidata":"https://www.wikidata.org/wiki/Q10858537","display_name":"Scale (ratio)","level":2,"score":0.48424026370048523},{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.46338069438934326},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.3623868227005005},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.33179980516433716},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.3184472918510437},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.06703975796699524},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C136264566","wikidata":"https://www.wikidata.org/wiki/Q159810","display_name":"Economy","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/j.procs.2014.05.052","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.procs.2014.05.052","pdf_url":null,"source":{"id":"https://openalex.org/S120348307","display_name":"Procedia Computer Science","issn_l":"1877-0509","issn":["1877-0509"],"is_oa":true,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Procedia Computer Science","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1016/j.procs.2014.05.052","is_oa":true,"landing_page_url":"https://doi.org/10.1016/j.procs.2014.05.052","pdf_url":null,"source":{"id":"https://openalex.org/S120348307","display_name":"Procedia Computer Science","issn_l":"1877-0509","issn":["1877-0509"],"is_oa":true,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Procedia Computer Science","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W26797728","https://openalex.org/W134816542","https://openalex.org/W1825216778","https://openalex.org/W1988888548","https://openalex.org/W1999472284","https://openalex.org/W2005129866","https://openalex.org/W2049644498","https://openalex.org/W2137002702","https://openalex.org/W3145639177","https://openalex.org/W4242589337"],"related_works":["https://openalex.org/W2384867379","https://openalex.org/W3214280620","https://openalex.org/W2329539859","https://openalex.org/W3191490922","https://openalex.org/W2765823764","https://openalex.org/W2227905990","https://openalex.org/W2079244304","https://openalex.org/W2794038527","https://openalex.org/W1588481459","https://openalex.org/W1599154403"],"abstract_inverted_index":{"The":[0],"K":[1,76],"computer,":[2],"released":[3],"on":[4],"September":[5],"29,":[6],"2012,":[7],"is":[8,78],"a":[9,25,56],"large-scale":[10],"parallel":[11],"supercomputer":[12],"system":[13,35],"consisting":[14],"of":[15,28,55,69],"82,944":[16],"compute":[17],"nodes.":[18],"We":[19,49,72],"have":[20,38],"been":[21,39],"able":[22],"to":[23,43],"resolve":[24],"significant":[26],"number":[27],"operation":[29,70],"issues":[30],"since":[31],"its":[32],"release.":[33],"Some":[34],"software":[36],"components":[37],"fixed":[40],"and":[41,47,61,82],"improved":[42],"obtain":[44],"higher":[45],"stability":[46],"utilization.":[48],"achieved":[50],"94%":[51],"service":[52],"availability":[53],"because":[54],"low":[57],"hardware":[58],"failure":[59],"rate":[60],"approximately":[62],"80%":[63],"node":[64],"utilization":[65,84],"by":[66],"careful":[67],"adjustment":[68],"parameters.":[71],"found":[73],"that":[74],"the":[75],"computer":[77],"an":[79],"extremely":[80],"stable":[81],"high":[83],"system.":[85]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
