{"id":"https://openalex.org/W2321406831","doi":"https://doi.org/10.1145/2837476.2837481","title":"An empirical study on parallelism in modern open-source projects","display_name":"An empirical study on parallelism in modern open-source projects","publication_year":2015,"publication_date":"2015-10-27","ids":{"openalex":"https://openalex.org/W2321406831","doi":"https://doi.org/10.1145/2837476.2837481","mag":"2321406831"},"language":"en","primary_location":{"id":"doi:10.1145/2837476.2837481","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2837476.2837481","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2nd International Workshop on Software Engineering for Parallel Systems","raw_type":"proceedings-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/A5071984469","display_name":"Marc Aurel Kiefer","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Marc Kiefer","raw_affiliation_strings":["KIT, Germany"],"affiliations":[{"raw_affiliation_string":"KIT, Germany","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5014222625","display_name":"Daniel Warzel","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Daniel Warzel","raw_affiliation_strings":["KIT, Germany"],"affiliations":[{"raw_affiliation_string":"KIT, Germany","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5000530309","display_name":"Walter F. Tichy","orcid":"https://orcid.org/0000-0002-1288-454X"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Walter F. Tichy","raw_affiliation_strings":["KIT, Germany"],"affiliations":[{"raw_affiliation_string":"KIT, Germany","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5071984469"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.323,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.63260341,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"35","last_page":"44"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.9988999962806702,"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":0.9988999962806702,"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/T10715","display_name":"Distributed and Parallel Computing Systems","score":0.9979000091552734,"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/T10101","display_name":"Cloud Computing and Resource Management","score":0.9883999824523926,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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":0.8965185880661011},{"id":"https://openalex.org/keywords/parallelism","display_name":"Parallelism (grammar)","score":0.6667648553848267},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.6490428447723389},{"id":"https://openalex.org/keywords/java","display_name":"Java","score":0.6094183921813965},{"id":"https://openalex.org/keywords/synchronization","display_name":"Synchronization (alternating current)","score":0.5115664601325989},{"id":"https://openalex.org/keywords/empirical-research","display_name":"Empirical research","score":0.4913875162601471},{"id":"https://openalex.org/keywords/code","display_name":"Code (set theory)","score":0.46140235662460327},{"id":"https://openalex.org/keywords/data-parallelism","display_name":"Data parallelism","score":0.42520639300346375},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.3793215751647949},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.13238826394081116}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8965185880661011},{"id":"https://openalex.org/C2781172179","wikidata":"https://www.wikidata.org/wiki/Q853109","display_name":"Parallelism (grammar)","level":2,"score":0.6667648553848267},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.6490428447723389},{"id":"https://openalex.org/C548217200","wikidata":"https://www.wikidata.org/wiki/Q251","display_name":"Java","level":2,"score":0.6094183921813965},{"id":"https://openalex.org/C2778562939","wikidata":"https://www.wikidata.org/wiki/Q1298791","display_name":"Synchronization (alternating current)","level":3,"score":0.5115664601325989},{"id":"https://openalex.org/C120936955","wikidata":"https://www.wikidata.org/wiki/Q2155640","display_name":"Empirical research","level":2,"score":0.4913875162601471},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.46140235662460327},{"id":"https://openalex.org/C61483411","wikidata":"https://www.wikidata.org/wiki/Q3124522","display_name":"Data parallelism","level":3,"score":0.42520639300346375},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.3793215751647949},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.13238826394081116},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2837476.2837481","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2837476.2837481","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2nd International Workshop on Software Engineering for Parallel Systems","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.7099999785423279,"id":"https://metadata.un.org/sdg/4","display_name":"Quality Education"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320311048","display_name":"Karlsruhe Institute of Technology","ror":"https://ror.org/04t3en479"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W160921400","https://openalex.org/W176821717","https://openalex.org/W1545099940","https://openalex.org/W1578415644","https://openalex.org/W1967885990","https://openalex.org/W1981349772","https://openalex.org/W1986860263","https://openalex.org/W1988888548","https://openalex.org/W2039417226","https://openalex.org/W2076027962","https://openalex.org/W2287454111","https://openalex.org/W2497848760","https://openalex.org/W2612271121","https://openalex.org/W3016205154","https://openalex.org/W3112905776","https://openalex.org/W4285719527","https://openalex.org/W6603079194","https://openalex.org/W6619308555","https://openalex.org/W6634506408"],"related_works":["https://openalex.org/W2950520577","https://openalex.org/W1554644772","https://openalex.org/W2003935582","https://openalex.org/W2494130044","https://openalex.org/W3170887803","https://openalex.org/W74409296","https://openalex.org/W3209384898","https://openalex.org/W4400951174","https://openalex.org/W1595834484","https://openalex.org/W1991844655"],"abstract_inverted_index":{"Writing":[0],"parallel":[1,43,63,100,117,136],"programs":[2,44],"is":[3,28],"hard,":[4],"especially":[5],"for":[6,39],"inexperienced":[7],"programmers.":[8],"Parallel":[9],"language":[10,96,156,167],"features":[11],"are":[12,105,119,138,168,177],"still":[13],"being":[14],"added":[15],"on":[16,149],"a":[17,46,154,166],"regular":[18],"basis":[19],"to":[20,30,34,79,92,109,127,152,165,172],"most":[21],"modern":[22],"object-oriented":[23],"languages":[24],"and":[25,41,53,69,103,121],"this":[26],"trend":[27],"likely":[29],"continue.":[31],"Being":[32],"able":[33],"support":[35],"developers":[36,108],"with":[37],"tools":[38],"writing":[40],"optimizing":[42],"requires":[45],"deep":[47],"understanding":[48],"of":[49,61,77,85],"how":[50,95,122,150],"programmers":[51],"approach":[52],"implement":[54],"parallelism.":[55,111],"We":[56,88,112],"present":[57],"an":[58],"empirical":[59],"study":[60],"135":[62],"open-source":[64],"projects":[65,91,181],"in":[66,179,185],"Java,":[67],"C#":[68],"C++":[70],"ranging":[71],"from":[72],"small":[73],"(<":[74],"1000":[75],"lines":[76,84],"code)":[78,86],"very":[80],"large":[81],"(>":[82],"2M":[83],"codebases.":[87],"examine":[89],"the":[90,123],"find":[93],"out":[94],"features,":[97],"synchronization":[98],"mechanisms,":[99],"data":[101],"structures":[102],"libraries":[104],"used":[106,120,139],"by":[107],"express":[110],"also":[113,146,183],"determine":[114],"which":[115],"common":[116],"patterns":[118],"implemented":[124],"solutions":[125],"compare":[126],"typical":[128],"textbook":[129],"advice.":[130],"The":[131],"results":[132],"show":[133],"that":[134,160],"similar":[135],"constructs":[137],"equally":[140],"often":[141],"across":[142],"languages,":[143],"but":[144,182],"usage":[145],"heavily":[147],"depends":[148],"easy":[151],"use":[153],"certain":[155],"feature":[157],"is.":[158],"Patterns":[159],"do":[161],"not":[162],"map":[163],"well":[164],"much":[169],"rarer":[170],"compared":[171],"other":[173],"languages.":[174],"Bad":[175],"practices":[176],"prevalent":[178],"hobby":[180],"occur":[184],"larger":[186],"projects.":[187]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}