{"id":"https://openalex.org/W2014070364","doi":"https://doi.org/10.1109/tcad.2015.2394383","title":"POLAR: A High Performance Mixed-Size Wirelengh-Driven Placer With Density Constraints","display_name":"POLAR: A High Performance Mixed-Size Wirelengh-Driven Placer With Density Constraints","publication_year":2015,"publication_date":"2015-01-20","ids":{"openalex":"https://openalex.org/W2014070364","doi":"https://doi.org/10.1109/tcad.2015.2394383","mag":"2014070364"},"language":"en","primary_location":{"id":"doi:10.1109/tcad.2015.2394383","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcad.2015.2394383","pdf_url":null,"source":{"id":"https://openalex.org/S100835903","display_name":"IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems","issn_l":"0278-0070","issn":["0278-0070","1937-4151"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Computer-Aided Design of Integrated Circuits and 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/A5109036828","display_name":"Tao Lin","orcid":"https://orcid.org/0000-0001-9100-6042"},"institutions":[{"id":"https://openalex.org/I173911158","display_name":"Iowa State University","ror":"https://ror.org/04rswrd78","country_code":"US","type":"education","lineage":["https://openalex.org/I173911158"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Tao Lin","raw_affiliation_strings":["Iowa State University, Ames, IA, USA","Iowa state university, Ames, IA, USA"],"affiliations":[{"raw_affiliation_string":"Iowa State University, Ames, IA, USA","institution_ids":["https://openalex.org/I173911158"]},{"raw_affiliation_string":"Iowa state university, Ames, IA, USA","institution_ids":["https://openalex.org/I173911158"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101613339","display_name":"Chris Chu","orcid":"https://orcid.org/0000-0001-6073-1719"},"institutions":[{"id":"https://openalex.org/I173911158","display_name":"Iowa State University","ror":"https://ror.org/04rswrd78","country_code":"US","type":"education","lineage":["https://openalex.org/I173911158"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Chris Chu","raw_affiliation_strings":["Iowa State University, Ames, IA, USA","Iowa state university, Ames, IA, USA"],"affiliations":[{"raw_affiliation_string":"Iowa State University, Ames, IA, USA","institution_ids":["https://openalex.org/I173911158"]},{"raw_affiliation_string":"Iowa state university, Ames, IA, USA","institution_ids":["https://openalex.org/I173911158"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033811130","display_name":"Joseph R. Shinnerl","orcid":null},"institutions":[{"id":"https://openalex.org/I4210156212","display_name":"Mentor Technologies","ror":"https://ror.org/05vewsj04","country_code":"US","type":"other","lineage":["https://openalex.org/I4210156212"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Joseph R. Shinnerl","raw_affiliation_strings":["Mentor Graphics Corporation, Fremont, CA, USA"],"affiliations":[{"raw_affiliation_string":"Mentor Graphics Corporation, Fremont, CA, USA","institution_ids":["https://openalex.org/I4210156212"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080828363","display_name":"Ismail Bustany","orcid":"https://orcid.org/0000-0002-7099-1546"},"institutions":[{"id":"https://openalex.org/I4210156212","display_name":"Mentor Technologies","ror":"https://ror.org/05vewsj04","country_code":"US","type":"other","lineage":["https://openalex.org/I4210156212"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ismail Bustany","raw_affiliation_strings":["Mentor Graphics Corporation, Fremont, CA, USA"],"affiliations":[{"raw_affiliation_string":"Mentor Graphics Corporation, Fremont, CA, USA","institution_ids":["https://openalex.org/I4210156212"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5079488592","display_name":"Ivailo Nedelchev","orcid":null},"institutions":[{"id":"https://openalex.org/I4210156212","display_name":"Mentor Technologies","ror":"https://ror.org/05vewsj04","country_code":"US","type":"other","lineage":["https://openalex.org/I4210156212"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ivailo Nedelchev","raw_affiliation_strings":["Mentor Graphics Corporation, Fremont, CA, USA"],"affiliations":[{"raw_affiliation_string":"Mentor Graphics Corporation, Fremont, CA, USA","institution_ids":["https://openalex.org/I4210156212"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5109036828"],"corresponding_institution_ids":["https://openalex.org/I173911158"],"apc_list":null,"apc_paid":null,"fwci":2.8097,"has_fulltext":false,"cited_by_count":39,"citation_normalized_percentile":{"value":0.91178855,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"34","issue":"3","first_page":"447","last_page":"459"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11522","display_name":"VLSI and FPGA Design Techniques","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T11522","display_name":"VLSI and FPGA Design Techniques","score":0.9998999834060669,"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/T11032","display_name":"VLSI and Analog Circuit Testing","score":0.9966999888420105,"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/T11527","display_name":"3D IC and TSV technologies","score":0.9961000084877014,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/legalization","display_name":"Legalization","score":0.7355407476425171},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6742408871650696},{"id":"https://openalex.org/keywords/polar","display_name":"Polar","score":0.5324011445045471},{"id":"https://openalex.org/keywords/quadratic-equation","display_name":"Quadratic equation","score":0.5211206078529358},{"id":"https://openalex.org/keywords/placement","display_name":"Placement","score":0.5176763534545898},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.45961564779281616},{"id":"https://openalex.org/keywords/bisection-method","display_name":"Bisection method","score":0.42012763023376465},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.35521838068962097},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.3468743860721588},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2016298472881317},{"id":"https://openalex.org/keywords/physical-design","display_name":"Physical design","score":0.1866636872291565},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.10168495774269104},{"id":"https://openalex.org/keywords/circuit-design","display_name":"Circuit design","score":0.08746156096458435}],"concepts":[{"id":"https://openalex.org/C2778506969","wikidata":"https://www.wikidata.org/wiki/Q940525","display_name":"Legalization","level":2,"score":0.7355407476425171},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6742408871650696},{"id":"https://openalex.org/C29705727","wikidata":"https://www.wikidata.org/wiki/Q294562","display_name":"Polar","level":2,"score":0.5324011445045471},{"id":"https://openalex.org/C129844170","wikidata":"https://www.wikidata.org/wiki/Q41299","display_name":"Quadratic equation","level":2,"score":0.5211206078529358},{"id":"https://openalex.org/C117690923","wikidata":"https://www.wikidata.org/wiki/Q1484784","display_name":"Placement","level":4,"score":0.5176763534545898},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.45961564779281616},{"id":"https://openalex.org/C157544257","wikidata":"https://www.wikidata.org/wiki/Q866300","display_name":"Bisection method","level":2,"score":0.42012763023376465},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.35521838068962097},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.3468743860721588},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2016298472881317},{"id":"https://openalex.org/C188817802","wikidata":"https://www.wikidata.org/wiki/Q13426855","display_name":"Physical design","level":3,"score":0.1866636872291565},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.10168495774269104},{"id":"https://openalex.org/C190560348","wikidata":"https://www.wikidata.org/wiki/Q3245116","display_name":"Circuit design","level":2,"score":0.08746156096458435},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"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/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.0},{"id":"https://openalex.org/C118552586","wikidata":"https://www.wikidata.org/wiki/Q7867","display_name":"Psychiatry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcad.2015.2394383","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcad.2015.2394383","pdf_url":null,"source":{"id":"https://openalex.org/S100835903","display_name":"IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems","issn_l":"0278-0070","issn":["0278-0070","1937-4151"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions","score":0.7799999713897705}],"awards":[{"id":"https://openalex.org/G8704664578","display_name":null,"funder_award_id":"CCF-1219100","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320309469","display_name":"Mentor Graphics","ror":"https://ror.org/00r59k631"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":39,"referenced_works":["https://openalex.org/W1506342804","https://openalex.org/W1966563007","https://openalex.org/W1971840653","https://openalex.org/W1972548419","https://openalex.org/W1973505932","https://openalex.org/W1984954427","https://openalex.org/W1986026297","https://openalex.org/W2002525234","https://openalex.org/W2003145440","https://openalex.org/W2041941568","https://openalex.org/W2042796482","https://openalex.org/W2043679008","https://openalex.org/W2058407220","https://openalex.org/W2059199163","https://openalex.org/W2072175262","https://openalex.org/W2082354275","https://openalex.org/W2088553275","https://openalex.org/W2103833707","https://openalex.org/W2114136290","https://openalex.org/W2114796612","https://openalex.org/W2118739216","https://openalex.org/W2119354760","https://openalex.org/W2120129706","https://openalex.org/W2120266641","https://openalex.org/W2129115040","https://openalex.org/W2160181657","https://openalex.org/W2165419774","https://openalex.org/W2167015643","https://openalex.org/W2167190617","https://openalex.org/W2178255440","https://openalex.org/W3145272032","https://openalex.org/W3148798416","https://openalex.org/W4234143391","https://openalex.org/W4234361049","https://openalex.org/W6643787455","https://openalex.org/W6665506746","https://openalex.org/W6676886990","https://openalex.org/W6680586540","https://openalex.org/W6684134304"],"related_works":["https://openalex.org/W181044676","https://openalex.org/W2376987616","https://openalex.org/W2054026560","https://openalex.org/W4389994644","https://openalex.org/W2390844778","https://openalex.org/W2323493410","https://openalex.org/W3086867668","https://openalex.org/W4225935048","https://openalex.org/W2366627955","https://openalex.org/W2389461987"],"abstract_inverted_index":{"Wirelength":[0],"is":[1,14,47,92,118,131],"one":[2],"of":[3,58,77,148],"the":[4,9,50,146,151],"most":[5],"important":[6],"metrics":[7],"in":[8,88,94],"placement":[10,69,79,102,106],"problem.":[11],"Minimizing":[12],"wirelength":[13],"not":[15],"only":[16],"beneficial,":[17],"but":[18],"also":[19],"a":[20,38,66,95,137],"fundamental":[21],"step":[22],"to":[23,64,72,120],"optimize":[24],"other":[25],"metrics,":[26],"such":[27],"as":[28],"timing,":[29],"power,":[30],"and":[31,70,97,154],"routability.":[32],"In":[33],"this":[34],"paper,":[35],"we":[36],"propose":[37],"high":[39],"performance":[40],"mixed-size":[41],"wirelengh-driven":[42],"placer":[43],"called":[44],"POLAR.":[45],"POLAR":[46,149],"based":[48],"on":[49],"recent":[51],"popular":[52],"look-ahead":[53,60,90],"legalization":[54,61,91],"idea.":[55],"The":[56,142],"goals":[57],"our":[59],"are:":[62],"1)":[63],"achieve":[65,85],"roughly":[67],"legalized":[68],"2)":[71],"maintain":[73],"cells'":[74],"relative":[75],"positions":[76],"quadratic":[78],"while":[80],"minimizing":[81],"cell":[82],"movements.":[83],"To":[84],"these":[86],"goals,":[87],"POLAR,":[89],"realized":[93],"simple":[96],"elegant":[98],"manner.":[99],"Firstly,":[100],"all":[101],"density":[103],"hotspots":[104],"(where":[105],"overflow":[107],"occurs)":[108],"are":[109],"detected.":[110],"Secondly,":[111],"for":[112],"each":[113,134],"hotspot,":[114],"an":[115],"appropriate":[116],"window":[117,135],"searched":[119],"cover":[121],"it":[122],"by":[123,136],"enumerating":[124],"many":[125],"feasible":[126],"candidates.":[127],"Finally,":[128],"cell-to-bin":[129],"assignment":[130],"performed":[132],"within":[133],"fast":[138],"recursive":[139],"bisection":[140],"method.":[141],"experimental":[143],"results":[144],"verify":[145],"efficiency":[147],"over":[150],"ISPD":[152],"2005":[153],"2006":[155],"benchmarks.":[156]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":2},{"year":2017,"cited_by_count":6},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":3}],"updated_date":"2026-04-06T07:47:59.780226","created_date":"2025-10-10T00:00:00"}
