{"id":"https://openalex.org/W4405348629","doi":"https://doi.org/10.1145/3695794.3695801","title":"UpDown: A Novel Architecture for Unlimited Memory Parallelism","display_name":"UpDown: A Novel Architecture for Unlimited Memory Parallelism","publication_year":2024,"publication_date":"2024-09-30","ids":{"openalex":"https://openalex.org/W4405348629","doi":"https://doi.org/10.1145/3695794.3695801"},"language":"en","primary_location":{"id":"doi:10.1145/3695794.3695801","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3695794.3695801","pdf_url":null,"source":{"id":"https://openalex.org/S4306524191","display_name":"Proceedings of the International Symposium on Memory Systems","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the International Symposium on Memory Systems","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1145/3695794.3695801","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5106066969","display_name":"Andronicus Rajasukumar","orcid":"https://orcid.org/0009-0005-1600-1459"},"institutions":[{"id":"https://openalex.org/I40347166","display_name":"University of Chicago","ror":"https://ror.org/024mw5h28","country_code":"US","type":"education","lineage":["https://openalex.org/I40347166"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Andronicus Rajasukumar","raw_affiliation_strings":["University of Chicago, Chicago, IL, United States"],"raw_orcid":"https://orcid.org/0009-0005-1600-1459","affiliations":[{"raw_affiliation_string":"University of Chicago, Chicago, IL, United States","institution_ids":["https://openalex.org/I40347166"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108963758","display_name":"Tianchi Zhang","orcid":"https://orcid.org/0000-0002-7469-6130"},"institutions":[{"id":"https://openalex.org/I40347166","display_name":"University of Chicago","ror":"https://ror.org/024mw5h28","country_code":"US","type":"education","lineage":["https://openalex.org/I40347166"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Tianchi Zhang","raw_affiliation_strings":["University of Chicago, Chicago, IL, United States"],"raw_orcid":"https://orcid.org/0000-0002-7469-6130","affiliations":[{"raw_affiliation_string":"University of Chicago, Chicago, IL, United States","institution_ids":["https://openalex.org/I40347166"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026266925","display_name":"Ruiqi Xu","orcid":"https://orcid.org/0009-0007-7269-9155"},"institutions":[{"id":"https://openalex.org/I40347166","display_name":"University of Chicago","ror":"https://ror.org/024mw5h28","country_code":"US","type":"education","lineage":["https://openalex.org/I40347166"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Ruiqi Xu","raw_affiliation_strings":["University of Chicago, Chicago, IL, United States"],"raw_orcid":"https://orcid.org/0009-0007-7269-9155","affiliations":[{"raw_affiliation_string":"University of Chicago, Chicago, IL, United States","institution_ids":["https://openalex.org/I40347166"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085538238","display_name":"Andrew A. Chien","orcid":"https://orcid.org/0000-0002-1204-206X"},"institutions":[{"id":"https://openalex.org/I1282105669","display_name":"Argonne National Laboratory","ror":"https://ror.org/05gvnxz63","country_code":"US","type":"facility","lineage":["https://openalex.org/I1282105669","https://openalex.org/I1330989302","https://openalex.org/I39565521","https://openalex.org/I40347166"]},{"id":"https://openalex.org/I40347166","display_name":"University of Chicago","ror":"https://ror.org/024mw5h28","country_code":"US","type":"education","lineage":["https://openalex.org/I40347166"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Andrew A. Chien","raw_affiliation_strings":["University of Chicago, Chicago, IL, United States and Argonne National Laboratory, Lemont, IL, USA"],"raw_orcid":"https://orcid.org/0000-0002-1204-206X","affiliations":[{"raw_affiliation_string":"University of Chicago, Chicago, IL, United States and Argonne National Laboratory, Lemont, IL, USA","institution_ids":["https://openalex.org/I1282105669","https://openalex.org/I40347166"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5106066969"],"corresponding_institution_ids":["https://openalex.org/I40347166"],"apc_list":null,"apc_paid":null,"fwci":1.4231,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.83733665,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"61","last_page":"77"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10054","display_name":"Parallel Computing and Optimization Techniques","score":1.0,"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":1.0,"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":0.9998999834060669,"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/T10772","display_name":"Distributed systems and fault tolerance","score":0.9987000226974487,"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":0.7711042165756226},{"id":"https://openalex.org/keywords/parallelism","display_name":"Parallelism (grammar)","score":0.6730237603187561},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.6374915242195129},{"id":"https://openalex.org/keywords/computer-architecture","display_name":"Computer architecture","score":0.6189697980880737},{"id":"https://openalex.org/keywords/architecture","display_name":"Architecture","score":0.5871027708053589},{"id":"https://openalex.org/keywords/instruction-level-parallelism","display_name":"Instruction-level parallelism","score":0.509767472743988}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7711042165756226},{"id":"https://openalex.org/C2781172179","wikidata":"https://www.wikidata.org/wiki/Q853109","display_name":"Parallelism (grammar)","level":2,"score":0.6730237603187561},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.6374915242195129},{"id":"https://openalex.org/C118524514","wikidata":"https://www.wikidata.org/wiki/Q173212","display_name":"Computer architecture","level":1,"score":0.6189697980880737},{"id":"https://openalex.org/C123657996","wikidata":"https://www.wikidata.org/wiki/Q12271","display_name":"Architecture","level":2,"score":0.5871027708053589},{"id":"https://openalex.org/C140763907","wikidata":"https://www.wikidata.org/wiki/Q2714055","display_name":"Instruction-level parallelism","level":3,"score":0.509767472743988},{"id":"https://openalex.org/C153349607","wikidata":"https://www.wikidata.org/wiki/Q36649","display_name":"Visual arts","level":1,"score":0.0},{"id":"https://openalex.org/C142362112","wikidata":"https://www.wikidata.org/wiki/Q735","display_name":"Art","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1145/3695794.3695801","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3695794.3695801","pdf_url":null,"source":{"id":"https://openalex.org/S4306524191","display_name":"Proceedings of the International Symposium on Memory Systems","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the International Symposium on Memory Systems","raw_type":"proceedings-article"},{"id":"pmh:oai:uchicago.tind.io:14326","is_oa":false,"landing_page_url":"http://knowledge.uchicago.edu/record/14326","pdf_url":null,"source":{"id":"https://openalex.org/S4306402460","display_name":"Knowledge@UChicago (University of Chicago)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I40347166","host_organization_name":"University of Chicago","host_organization_lineage":["https://openalex.org/I40347166"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://knowledge.uchicago.edu/record/14326","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.1145/3695794.3695801","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3695794.3695801","pdf_url":null,"source":{"id":"https://openalex.org/S4306524191","display_name":"Proceedings of the International Symposium on Memory Systems","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the International Symposium on Memory Systems","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G8026696467","display_name":null,"funder_award_id":"CNS-1907863","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"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":46,"referenced_works":["https://openalex.org/W1967869476","https://openalex.org/W2036162037","https://openalex.org/W2085773946","https://openalex.org/W2103330947","https://openalex.org/W2107916517","https://openalex.org/W2109341366","https://openalex.org/W2125305952","https://openalex.org/W2125502827","https://openalex.org/W2128071473","https://openalex.org/W2132552633","https://openalex.org/W2145851359","https://openalex.org/W2152486453","https://openalex.org/W2152621759","https://openalex.org/W2154790323","https://openalex.org/W2157443293","https://openalex.org/W2163820265","https://openalex.org/W2166243784","https://openalex.org/W2169928889","https://openalex.org/W2170585292","https://openalex.org/W2170901118","https://openalex.org/W2172212694","https://openalex.org/W2234355962","https://openalex.org/W2236895266","https://openalex.org/W2239894058","https://openalex.org/W2474451066","https://openalex.org/W2588191434","https://openalex.org/W2622148586","https://openalex.org/W2622728018","https://openalex.org/W2761621268","https://openalex.org/W2794308724","https://openalex.org/W2904192253","https://openalex.org/W2949710373","https://openalex.org/W2953184160","https://openalex.org/W3006586535","https://openalex.org/W3009922968","https://openalex.org/W3129009295","https://openalex.org/W3139689176","https://openalex.org/W4205436209","https://openalex.org/W4206069761","https://openalex.org/W4244381167","https://openalex.org/W4244646280","https://openalex.org/W4281734203","https://openalex.org/W4281782992","https://openalex.org/W4386124159","https://openalex.org/W4394648225","https://openalex.org/W4399347275"],"related_works":["https://openalex.org/W3104857564","https://openalex.org/W2950520577","https://openalex.org/W2009213655","https://openalex.org/W2105992728","https://openalex.org/W2109463584","https://openalex.org/W1229628","https://openalex.org/W1991844655","https://openalex.org/W2003935582","https://openalex.org/W4230999561","https://openalex.org/W1595672120"],"abstract_inverted_index":{"The":[0],"emergence":[1],"of":[2,13,51,54,115,147,163],"HBM":[3],"as":[4],"a":[5,52,75,117,130],"high-volume":[6],"memory":[7,11,27,32,69,80,91,97,103,126,155],"product":[8],"has":[9],"made":[10],"bandwidths":[12,24],"1.2TB/s":[14],"(1":[15],"stack)":[16],"to":[17,78,123,129,157],"4.8TB/s":[18],"(4":[19],"stacks)":[20],"feasible.":[21],"Exploiting":[22],"such":[23],"requires":[25],"high":[26],"level":[28],"parallelism,":[29],"but":[30],"the":[31,42,62,96,100,111,148,160],"access":[33],"mechanisms":[34],"in":[35],"today\u2019s":[36],"CPUs":[37],"are":[38],"ill-suited.":[39],"We":[40,60,141],"define":[41],"Memory":[43],"Parallelism":[44],"Abstract":[45],"Machine":[46],"(MPAM)":[47],"that":[48,65,86,110,144,172],"characterizes":[49],"limits":[50],"variety":[53],"various":[55],"commercial":[56],"and":[57,74,102,178],"research":[58],"designs.":[59],"propose":[61],"UpDown":[63,87,149,173],"architecture":[64,150],"generates":[66],"unlimited,":[67],"cost-efficient":[68],"parallelism":[70,92,127],"using":[71],"split-transaction":[72],"accesses":[73],"large":[76],"compute-namespace":[77],"synchronize":[79],"responses.":[81],"Using":[82],"MPAM,":[83],"we":[84,169],"show":[85,143,171],"can":[88,120,151],"generate":[89,121],"unlimited":[90],"constrained":[93],"only":[94],"by":[95],"technology":[98],"servicing":[99],"system":[101],"reference":[104],"issue":[105],"rate.":[106],"Our":[107],"evaluation":[108],"shows":[109],"smallest":[112],"compute":[113],"element":[114],"UpDown,":[116],"single":[118],"lane":[119],"up":[122],"3.5x":[124],"more":[125,176],"compared":[128],"modern":[131],"out-of-order":[132],"CPU":[133],"core,":[134],"despite":[135],"its":[136],"much":[137,175],"smaller":[138],"area":[139],"(<1%).":[140],"also":[142,170],"64":[145],"lanes":[146],"sustain":[152],"1,673":[153],"outstanding":[154],"references":[156],"nearly":[158],"saturate":[159],"full":[161],"bandwidth":[162],"1":[164],"HBM3e":[165],"stack":[166],"(1.2TB/s).":[167],"Finally,":[168],"is":[174],"energy":[177],"power":[179],"efficient.":[180]},"counts_by_year":[{"year":2025,"cited_by_count":3}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}