{"id":"https://openalex.org/W2028869067","doi":"https://doi.org/10.1145/1542275.1542293","title":"OhHelp","display_name":"OhHelp","publication_year":2009,"publication_date":"2009-06-08","ids":{"openalex":"https://openalex.org/W2028869067","doi":"https://doi.org/10.1145/1542275.1542293","mag":"2028869067"},"language":"en","primary_location":{"id":"doi:10.1145/1542275.1542293","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1542275.1542293","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 23rd international conference on Supercomputing","raw_type":"proceedings-article"},"type":"conference-paper","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/A5056038063","display_name":"Hiroshi Nakashima","orcid":"https://orcid.org/0000-0001-8096-6398"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroshi Nakashima","raw_affiliation_strings":["Kyoto University, Kyoto, Japan","Kyoto University, Kyoto, Japan#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I22299242"]},{"raw_affiliation_string":"Kyoto University, Kyoto, Japan#TAB#","institution_ids":["https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5001536990","display_name":"Yohei Miyake","orcid":"https://orcid.org/0000-0001-6491-1012"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]},{"id":"https://openalex.org/I4210088032","display_name":"Kyoto Bunkyo University","ror":"https://ror.org/0037an472","country_code":"JP","type":"education","lineage":["https://openalex.org/I4210088032"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yohei Miyake","raw_affiliation_strings":["Kyoto University, Uji, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kyoto University, Uji, Japan","institution_ids":["https://openalex.org/I22299242","https://openalex.org/I4210088032"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081868268","display_name":"Hideyuki Usui","orcid":"https://orcid.org/0000-0001-5846-9109"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]},{"id":"https://openalex.org/I4210088032","display_name":"Kyoto Bunkyo University","ror":"https://ror.org/0037an472","country_code":"JP","type":"education","lineage":["https://openalex.org/I4210088032"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hideyuki Usui","raw_affiliation_strings":["Kyoto University, Uji, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kyoto University, Uji, Japan","institution_ids":["https://openalex.org/I22299242","https://openalex.org/I4210088032"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5041125210","display_name":"Yoshiharu Omura","orcid":"https://orcid.org/0000-0002-6683-3940"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]},{"id":"https://openalex.org/I4210088032","display_name":"Kyoto Bunkyo University","ror":"https://ror.org/0037an472","country_code":"JP","type":"education","lineage":["https://openalex.org/I4210088032"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yoshiharu Omura","raw_affiliation_strings":["Kyoto University, Uji, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kyoto University, Uji, Japan","institution_ids":["https://openalex.org/I22299242","https://openalex.org/I4210088032"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.3515,"has_fulltext":false,"cited_by_count":36,"citation_normalized_percentile":{"value":0.79063409,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"90","last_page":"99"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":0.9980999827384949,"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"}},"topics":[{"id":"https://openalex.org/T11181","display_name":"Advanced Data Storage Technologies","score":0.9980999827384949,"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/T10346","display_name":"Magnetic confinement fusion research","score":0.9945999979972839,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11367","display_name":"Particle accelerators and beam dynamics","score":0.9879000186920166,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.8755558729171753},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7772392630577087},{"id":"https://openalex.org/keywords/load-balancing","display_name":"Load balancing (electrical power)","score":0.749869167804718},{"id":"https://openalex.org/keywords/speedup","display_name":"Speedup","score":0.6401697993278503},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.63229900598526},{"id":"https://openalex.org/keywords/node","display_name":"Node (physics)","score":0.6128410696983337},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.5708762407302856},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.5484800934791565},{"id":"https://openalex.org/keywords/domain","display_name":"Domain (mathematical analysis)","score":0.49743226170539856},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.18871119618415833},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.09034594893455505},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.08299025893211365},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.07041332125663757}],"concepts":[{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.8755558729171753},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7772392630577087},{"id":"https://openalex.org/C138959212","wikidata":"https://www.wikidata.org/wiki/Q1806783","display_name":"Load balancing (electrical power)","level":3,"score":0.749869167804718},{"id":"https://openalex.org/C68339613","wikidata":"https://www.wikidata.org/wiki/Q1549489","display_name":"Speedup","level":2,"score":0.6401697993278503},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.63229900598526},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.6128410696983337},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.5708762407302856},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.5484800934791565},{"id":"https://openalex.org/C36503486","wikidata":"https://www.wikidata.org/wiki/Q11235244","display_name":"Domain (mathematical analysis)","level":2,"score":0.49743226170539856},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.18871119618415833},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.09034594893455505},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.08299025893211365},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.07041332125663757},{"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/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C187691185","wikidata":"https://www.wikidata.org/wiki/Q2020720","display_name":"Grid","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1542275.1542293","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1542275.1542293","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 23rd international conference on Supercomputing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":31,"referenced_works":["https://openalex.org/W1562752809","https://openalex.org/W1568160299","https://openalex.org/W1968758799","https://openalex.org/W1974095406","https://openalex.org/W1989035734","https://openalex.org/W2011936940","https://openalex.org/W2019980488","https://openalex.org/W2041120758","https://openalex.org/W2046020177","https://openalex.org/W2049400214","https://openalex.org/W2051648588","https://openalex.org/W2057349346","https://openalex.org/W2068306188","https://openalex.org/W2072423127","https://openalex.org/W2076429821","https://openalex.org/W2077181307","https://openalex.org/W2092285446","https://openalex.org/W2093085808","https://openalex.org/W2105424647","https://openalex.org/W2108497120","https://openalex.org/W2112041357","https://openalex.org/W2122061738","https://openalex.org/W2122290830","https://openalex.org/W2128040438","https://openalex.org/W2128569273","https://openalex.org/W2133885876","https://openalex.org/W2138010167","https://openalex.org/W2143777453","https://openalex.org/W2145028663","https://openalex.org/W2151440762","https://openalex.org/W2615050003"],"related_works":["https://openalex.org/W2317245370","https://openalex.org/W2499279132","https://openalex.org/W4249323025","https://openalex.org/W198851386","https://openalex.org/W1980160788","https://openalex.org/W2030310580","https://openalex.org/W947442053","https://openalex.org/W2148915962","https://openalex.org/W4313433561","https://openalex.org/W2283866686"],"abstract_inverted_index":{"This":[0,30],"paper":[1],"proposes":[2],"a":[3,91,151,164,182],"new":[4],"method":[5],"for":[6,54],"Particle-in-Cell":[7],"(PIC)":[8],"simulations":[9],"which":[10,89],"aims":[11],"at":[12],"achieving":[13],"both":[14],"good":[15,123],"load":[16,108,124],"balancing":[17,66,125],"and":[18,35,45,67,98,141,156,159],"scalability":[19,70,142],"so":[20],"as":[21],"to":[22,50,59,103,116,135,176,189],"be":[23],"efficiently":[24],"executed":[25],"on":[26],"distributed":[27],"memory":[28],"systems.":[29],"method,":[31],"named":[32],"OhHelp,":[33],"simply":[34],"equally":[36],"partitions":[37],"the":[38,60,63,69,74,119,179],"space":[39],"domain":[40],"where":[41],"charged":[42],"particles":[43,77,94,180],"reside":[44],"assigns":[46],"each":[47,51,82],"partitioned":[48],"subdomain":[49,97,100,114],"computation":[52],"node":[53,83,88],"scalable":[55],"simulation":[56],"with":[57,150,157],"respect":[58],"size":[61],"of":[62,73,76,93,143],"domain.":[64],"Load":[65],"thus":[68],"in":[71,95,181],"terms":[72],"number":[75],"are":[78,145],"accomplished":[79],"by":[80],"making":[81],"help":[84],"another":[85],"heavily":[86],"loaded":[87],"deputes":[90],"part":[92],"its":[96,104],"replicated":[99],"field":[101],"data":[102],"helpers.":[105],"The":[106,139],"OhHelp":[107,144],"balancer":[109],"monitors":[110],"particle":[111,161],"movements":[112],"through":[113,147],"boundaries":[115],"check":[117],"if":[118],"helpand-helpers":[120],"configuration":[121],"keeps":[122],"and,":[126],"when":[127],"unacceptable":[128],"imbalance":[129],"is":[130],"found,":[131],"dynamically":[132],"reconfigures":[133],"it":[134],"regain":[136],"perfect":[137],"balancing.":[138],"efficiency":[140],"confirmed":[146],"our":[148],"experiment":[149],"production-level":[152],"full-3D":[153],"plasma":[154],"simulator":[155],"uniform":[158],"non-uniform":[160],"distributions.":[162],"As":[163],"result,":[165],"we":[166],"found":[167],"256-core":[168],"parallel":[169],"simulations,":[170],"including":[171],"an":[172],"extremely":[173],"imbalanced":[174],"setting":[175],"pack":[177],"all":[178],"small":[183],"region,":[184],"exert":[185],"159-190":[186],"speedup":[187],"compared":[188],"sequential":[190],"execution.":[191]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":7},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":1},{"year":2018,"cited_by_count":4},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":5},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":1}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2016-06-24T00:00:00"}
