{"id":"https://openalex.org/W2045466259","doi":"https://doi.org/10.1145/2680543","title":"Does the Sharing of Execution Units Improve Performance/Power of Multicores?","display_name":"Does the Sharing of Execution Units Improve Performance/Power of Multicores?","publication_year":2015,"publication_date":"2015-01-21","ids":{"openalex":"https://openalex.org/W2045466259","doi":"https://doi.org/10.1145/2680543","mag":"2045466259"},"language":"en","primary_location":{"id":"doi:10.1145/2680543","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2680543","pdf_url":null,"source":{"id":"https://openalex.org/S136160450","display_name":"ACM Transactions on Embedded Computing Systems","issn_l":"1539-9087","issn":["1539-9087","1558-3465"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Embedded Computing Systems","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/A5103414058","display_name":"Rance Rodrigues","orcid":null},"institutions":[{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Rance Rodrigues","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Massachusetts, Amherst MA","Dept. of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Massachusetts, Amherst MA","institution_ids":["https://openalex.org/I24603500"]},{"raw_affiliation_string":"Dept. of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA#TAB#","institution_ids":["https://openalex.org/I24603500"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5055210733","display_name":"Israel Koren","orcid":"https://orcid.org/0000-0003-2741-7108"},"institutions":[{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Israel Koren","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Massachusetts, Amherst MA","Dept. of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Massachusetts, Amherst MA","institution_ids":["https://openalex.org/I24603500"]},{"raw_affiliation_string":"Dept. of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA#TAB#","institution_ids":["https://openalex.org/I24603500"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5054064879","display_name":"Sandip Kundu","orcid":"https://orcid.org/0000-0001-8221-3824"},"institutions":[{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Sandip Kundu","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Massachusetts, Amherst MA","Dept. of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Massachusetts, Amherst MA","institution_ids":["https://openalex.org/I24603500"]},{"raw_affiliation_string":"Dept. of Electrical and Computer Engineering, University of Massachusetts, Amherst, MA#TAB#","institution_ids":["https://openalex.org/I24603500"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I24603500"],"apc_list":null,"apc_paid":null,"fwci":0.3226,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.5971421,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"14","issue":"1","first_page":"1","last_page":"24"},"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/T10363","display_name":"Low-power high-performance VLSI design","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10829","display_name":"Interconnection Networks and Systems","score":0.9987999796867371,"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":0.8730489015579224},{"id":"https://openalex.org/keywords/multi-core-processor","display_name":"Multi-core processor","score":0.7037638425827026},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.6521486043930054},{"id":"https://openalex.org/keywords/workload","display_name":"Workload","score":0.6286725997924805},{"id":"https://openalex.org/keywords/datapath","display_name":"Datapath","score":0.6058368682861328},{"id":"https://openalex.org/keywords/shared-resource","display_name":"Shared resource","score":0.5580736994743347},{"id":"https://openalex.org/keywords/watt","display_name":"Watt","score":0.49469849467277527},{"id":"https://openalex.org/keywords/time-sharing","display_name":"Time-sharing","score":0.4787551760673523},{"id":"https://openalex.org/keywords/performance-improvement","display_name":"Performance improvement","score":0.4506271183490753},{"id":"https://openalex.org/keywords/reservation","display_name":"Reservation","score":0.4343678057193756},{"id":"https://openalex.org/keywords/power-management","display_name":"Power management","score":0.43168386816978455},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.3968760073184967},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.33625784516334534},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.3264007866382599},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.29721808433532715},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.2314983308315277},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.11526447534561157}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8730489015579224},{"id":"https://openalex.org/C78766204","wikidata":"https://www.wikidata.org/wiki/Q555032","display_name":"Multi-core processor","level":2,"score":0.7037638425827026},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.6521486043930054},{"id":"https://openalex.org/C2778476105","wikidata":"https://www.wikidata.org/wiki/Q628539","display_name":"Workload","level":2,"score":0.6286725997924805},{"id":"https://openalex.org/C2781198647","wikidata":"https://www.wikidata.org/wiki/Q1633673","display_name":"Datapath","level":2,"score":0.6058368682861328},{"id":"https://openalex.org/C51332947","wikidata":"https://www.wikidata.org/wiki/Q1172305","display_name":"Shared resource","level":2,"score":0.5580736994743347},{"id":"https://openalex.org/C44012409","wikidata":"https://www.wikidata.org/wiki/Q25236","display_name":"Watt","level":3,"score":0.49469849467277527},{"id":"https://openalex.org/C38725249","wikidata":"https://www.wikidata.org/wiki/Q913876","display_name":"Time-sharing","level":2,"score":0.4787551760673523},{"id":"https://openalex.org/C2778915421","wikidata":"https://www.wikidata.org/wiki/Q3643177","display_name":"Performance improvement","level":2,"score":0.4506271183490753},{"id":"https://openalex.org/C2777632111","wikidata":"https://www.wikidata.org/wiki/Q1937518","display_name":"Reservation","level":2,"score":0.4343678057193756},{"id":"https://openalex.org/C2778774385","wikidata":"https://www.wikidata.org/wiki/Q4437810","display_name":"Power management","level":3,"score":0.43168386816978455},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.3968760073184967},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.33625784516334534},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.3264007866382599},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.29721808433532715},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.2314983308315277},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.11526447534561157},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C21547014","wikidata":"https://www.wikidata.org/wiki/Q1423657","display_name":"Operations management","level":1,"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/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/2680543","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2680543","pdf_url":null,"source":{"id":"https://openalex.org/S136160450","display_name":"ACM Transactions on Embedded Computing Systems","issn_l":"1539-9087","issn":["1539-9087","1558-3465"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Embedded Computing Systems","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.645.8679","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.645.8679","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://euler.ecs.umass.edu/research/rkk-TECS-2014.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W1595513119","https://openalex.org/W1978302329","https://openalex.org/W1980351017","https://openalex.org/W2002072104","https://openalex.org/W2004535862","https://openalex.org/W2037975285","https://openalex.org/W2048085362","https://openalex.org/W2053373629","https://openalex.org/W2054989520","https://openalex.org/W2057234250","https://openalex.org/W2089913281","https://openalex.org/W2098143668","https://openalex.org/W2098985322","https://openalex.org/W2102727118","https://openalex.org/W2108600086","https://openalex.org/W2108730429","https://openalex.org/W2112870827","https://openalex.org/W2114626867","https://openalex.org/W2116175063","https://openalex.org/W2118532220","https://openalex.org/W2120230074","https://openalex.org/W2125067970","https://openalex.org/W2145021036","https://openalex.org/W2159449877","https://openalex.org/W2172028083","https://openalex.org/W2913446311","https://openalex.org/W3008756550"],"related_works":["https://openalex.org/W2109699519","https://openalex.org/W2006568360","https://openalex.org/W970262775","https://openalex.org/W4233616027","https://openalex.org/W2059591361","https://openalex.org/W4244724753","https://openalex.org/W2535673728","https://openalex.org/W102726818","https://openalex.org/W1972081536","https://openalex.org/W1831618318"],"abstract_inverted_index":{"Several":[0],"studies":[1],"and":[2,45,55,61,83,170,221,238,267,274],"recent":[3],"real-world":[4],"designs":[5],"have":[6,212],"promoted":[7],"sharing":[8,34,59,74,123,156,179,199],"of":[9,29,58,66,75,114,157,178,227,235,242,262],"underutilized":[10,62],"resources":[11,31,63,181],"between":[12,64],"cores":[13,67,136],"in":[14,68,100,110,182],"a":[15,36,69,203,252],"multicore":[16],"processor":[17],"to":[18,90,116,147,154],"achieve":[19],"better":[20],"performance/power.":[21],"It":[22],"has":[23,35],"been":[24],"argued":[25],"that":[26,95,162,198,247,259],"when":[27],"utilization":[28],"such":[30],"is":[32],"low,":[33],"negligible":[37,204],"impact":[38,177],"on":[39,192,251],"performance":[40,54,112,145,205,220,266],"while":[41,96,133],"offering":[42],"considerable":[43],"area":[44],"power":[46,101],"benefits.":[47],"In":[48],"this":[49,97],"article,":[50],"we":[51,119,174,231],"investigate":[52],"the":[53,76,127,134,143,152,167,176,193,209,225,228,233,244,260],"performance/watt":[56,201,268],"implications":[57],"large":[60,159],"pairs":[65],"multicore.":[70],"We":[71,93,149,196],"first":[72],"study":[73,120,153],"entire":[77],"floating-point":[78,128],"datapath":[79],"(including":[80],"reservation":[81,139],"stations":[82],"execution":[84,129,160],"units)":[85],"by":[86,269],"two":[87],"cores,":[88],"similar":[89],"AMD\u2019s":[91],"Bulldozer.":[92],"find":[94],"architecture":[98,124],"results":[99,109,257],"savings":[102],"for":[103],"certain":[104],"workload":[105],"combinations,":[106],"it":[107],"also":[108],"significant":[111],"loss":[113,146],"up":[115],"28%.":[117],"Next,":[118],"an":[121],"alternative":[122],"where":[125,187],"only":[126,207,243],"units":[130,161,211,217,246],"are":[131,163],"shared,":[132],"individual":[135],"retain":[137],"their":[138],"stations.":[140],"This":[141],"reduces":[142,218],"highest":[144],"14%.":[148],"then":[150],"extend":[151],"include":[155],"other":[158],"used":[164],"infrequently,":[165],"namely,":[166],"integer":[168],"multiply":[169],"divide":[171],"units.":[172],"Subsequently,":[173],"analyze":[175],"hardware":[180],"Simultaneously":[183],"Multithreaded":[184],"(SMT)":[185],"processors":[186],"multiple":[188],"threads":[189],"run":[190],"concurrently":[191],"same":[194],"core.":[195],"observe":[197],"improves":[200,264],"at":[202],"cost":[206],"if":[208],"shared":[210,229,245],"high":[213],"throughput.":[214],"Sharing":[215],"low-throughput":[216],"both":[219,265],"performance/watt.":[222],"To":[223],"increase":[224],"throughput":[226],"units,":[230],"propose":[232],"use":[234,261],"Dynamic":[236],"Voltage":[237],"Frequency":[239],"Boosting":[240],"(DVFB)":[241],"can":[248],"be":[249],"placed":[250],"separate":[253],"voltage":[254],"island.":[255],"Our":[256],"indicate":[258],"DVFB":[263],"as":[270,272],"much":[271],"22%":[273],"10%,":[275],"respectively.":[276]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
