{"id":"https://openalex.org/W7133560948","doi":"https://doi.org/10.1109/hpca68181.2026.11408611","title":"Cohet: A CXL-Driven Coherent Heterogeneous Computing Framework with Hardware-Calibrated Full-System Simulation","display_name":"Cohet: A CXL-Driven Coherent Heterogeneous Computing Framework with Hardware-Calibrated Full-System Simulation","publication_year":2026,"publication_date":"2026-01-31","ids":{"openalex":"https://openalex.org/W7133560948","doi":"https://doi.org/10.1109/hpca68181.2026.11408611"},"language":null,"primary_location":{"id":"doi:10.1109/hpca68181.2026.11408611","is_oa":false,"landing_page_url":"https://doi.org/10.1109/hpca68181.2026.11408611","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 IEEE International Symposium on High Performance Computer Architecture (HPCA)","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/A5066291642","display_name":"Yanjing Wang","orcid":null},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yanjing Wang","raw_affiliation_strings":["College of Computer Science and Technology, National University of Defense Technology,China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, National University of Defense Technology,China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Lizhou Wu","orcid":null},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lizhou Wu","raw_affiliation_strings":["College of Computer Science and Technology, National University of Defense Technology,China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, National University of Defense Technology,China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5128043761","display_name":"Sunfeng Gao","orcid":null},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Sunfeng Gao","raw_affiliation_strings":["College of Computer Science and Technology, National University of Defense Technology,China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, National University of Defense Technology,China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Yibo Tang","orcid":null},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yibo Tang","raw_affiliation_strings":["College of Computer Science and Technology, National University of Defense Technology,China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, National University of Defense Technology,China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5128045487","display_name":"Junhui Luo","orcid":null},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junhui Luo","raw_affiliation_strings":["College of Computer Science and Technology, National University of Defense Technology,China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, National University of Defense Technology,China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050038438","display_name":"Zicong Wang","orcid":"https://orcid.org/0000-0002-3106-5451"},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zicong Wang","raw_affiliation_strings":["College of Computer Science and Technology, National University of Defense Technology,China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, National University of Defense Technology,China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5128072643","display_name":"Yang Ou","orcid":null},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yang Ou","raw_affiliation_strings":["College of Computer Science and Technology, National University of Defense Technology,China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, National University of Defense Technology,China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5128045202","display_name":"Dezun Dong","orcid":null},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Dezun Dong","raw_affiliation_strings":["College of Computer Science and Technology, National University of Defense Technology,China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, National University of Defense Technology,China","institution_ids":["https://openalex.org/I170215575"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057221447","display_name":"Nong Xiao","orcid":null},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Nong Xiao","raw_affiliation_strings":["School of Computer Science and Engineering, Sun Yat-sen University,China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Engineering, Sun Yat-sen University,China","institution_ids":["https://openalex.org/I157773358"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5121552514","display_name":"Mingche Lai","orcid":null},"institutions":[{"id":"https://openalex.org/I170215575","display_name":"National University of Defense Technology","ror":"https://ror.org/05d2yfz11","country_code":"CN","type":"education","lineage":["https://openalex.org/I170215575"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Mingche Lai","raw_affiliation_strings":["College of Computer Science and Technology, National University of Defense Technology,China"],"affiliations":[{"raw_affiliation_string":"College of Computer Science and Technology, National University of Defense Technology,China","institution_ids":["https://openalex.org/I170215575"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":10,"corresponding_author_ids":["https://openalex.org/A5066291642"],"corresponding_institution_ids":["https://openalex.org/I170215575"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.5385304,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"16"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12611","display_name":"Neural Networks and Reservoir Computing","score":0.25209999084472656,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T12611","display_name":"Neural Networks and Reservoir Computing","score":0.25209999084472656,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10232","display_name":"Optical Network Technologies","score":0.1348000019788742,"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/T10054","display_name":"Parallel Computing and Optimization Techniques","score":0.11309999972581863,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.2630000114440918},{"id":"https://openalex.org/keywords/feature","display_name":"Feature (linguistics)","score":0.25099998712539673},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.25029999017715454},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.24220000207424164}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6122000217437744},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3531999886035919},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.2831000089645386},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.2809999883174896},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.2630000114440918},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.25099998712539673},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.25029999017715454},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.24220000207424164},{"id":"https://openalex.org/C168167062","wikidata":"https://www.wikidata.org/wiki/Q1117970","display_name":"Component (thermodynamics)","level":2,"score":0.24210000038146973},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.24070000648498535}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/hpca68181.2026.11408611","is_oa":false,"landing_page_url":"https://doi.org/10.1109/hpca68181.2026.11408611","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 IEEE International Symposium on High Performance Computer Architecture (HPCA)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1891631727","display_name":null,"funder_award_id":"2022YFB4500304","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G7197472479","display_name":null,"funder_award_id":"62332021,62304257,62472058","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W2147657366","https://openalex.org/W2295951005","https://openalex.org/W2338370098","https://openalex.org/W2339765813","https://openalex.org/W2883929540","https://openalex.org/W3011293047","https://openalex.org/W3012143782","https://openalex.org/W3012366137","https://openalex.org/W3021027963","https://openalex.org/W3139044851","https://openalex.org/W3153563908","https://openalex.org/W3194336529","https://openalex.org/W3205539858","https://openalex.org/W3205539956","https://openalex.org/W3205984154","https://openalex.org/W3210457773","https://openalex.org/W4280645899","https://openalex.org/W4281663741","https://openalex.org/W4281894600","https://openalex.org/W4287547927","https://openalex.org/W4320060575","https://openalex.org/W4327930439","https://openalex.org/W4360831852","https://openalex.org/W4361194512","https://openalex.org/W4380874786","https://openalex.org/W4380875557","https://openalex.org/W4387321093","https://openalex.org/W4388581093","https://openalex.org/W4388581411","https://openalex.org/W4394892729","https://openalex.org/W4394946262","https://openalex.org/W4395073438","https://openalex.org/W4400909633","https://openalex.org/W4401211635","https://openalex.org/W4401408779","https://openalex.org/W4403334638","https://openalex.org/W4404181298","https://openalex.org/W4404400737","https://openalex.org/W4404954500","https://openalex.org/W4404954501","https://openalex.org/W4404955086","https://openalex.org/W4407197060","https://openalex.org/W4408901606","https://openalex.org/W4408903016","https://openalex.org/W4409248564","https://openalex.org/W4409248712","https://openalex.org/W4411486062"],"related_works":[],"abstract_inverted_index":{"Conventional":[0],"heterogeneous":[1,49,93,155,161],"computing":[2,50,59,94],"systems":[3],"built":[4],"on":[5],"PCIe":[6],"interconnects":[7],"suffer":[8],"from":[9],"inefficient":[10],"fine-grained":[11],"host-device":[12],"interactions":[13],"and":[14,23,63,81,100,107,115,128,152,192,209,229,264,286],"complex":[15],"programming":[16,163],"models.":[17],"In":[18],"recent":[19],"years,":[20],"many":[21],"proprietary":[22],"open":[24],"cache-coherent":[25],"interconnect":[26],"standards":[27],"have":[28],"emerged,":[29],"among":[30],"which":[31,110,132,184,258],"compute":[32,99,130],"express":[33],"link":[34],"(CXL)":[35],"prevails":[36],"in":[37,66],"the":[38,52,57,72,89,98,143,250],"open-standard":[39],"domain":[40],"after":[41],"acquiring":[42],"several":[43],"competing":[44],"solutions.":[45],"Although":[46],"CXL-based":[47],"coherent":[48,92,116],"holds":[51],"potential":[53],"to":[54,103,125,164,168,238,270,277],"fundamentally":[55],"transform":[56],"collaborative":[58],"mode":[60],"of":[61,74,154,187,216,252,290],"CPUs":[62],"XPUs,":[64],"research":[65],"this":[67],"direction":[68],"remains":[69],"hampered":[70],"by":[71,226,232],"scarcity":[73],"available":[75],"CXL-supported":[76],"platforms,":[77],"immature":[78],"software/hardware":[79],"ecosystems,":[80],"unclear":[82],"application":[83],"prospects.":[84],"This":[85,157],"paper":[86],"presents":[87],"Cohet,":[88],"first":[90],"CXL-driven":[91],"framework.":[95],"Cohet":[96,173,253],"decouples":[97],"memory":[101,117,148,208],"resources":[102],"form":[104],"unbiased":[105],"CPU":[106,127],"XPU":[108,129],"pools":[109],"share":[111,133],"a":[112,121,134,165,178,201,275],"single":[113,135],"unified":[114],"pool.":[118],"It":[119],"exposes":[120],"standard":[122],"malloc/mmap":[123],"interface":[124],"both":[126],"threads,":[131],"per-process":[136],"page":[137,150],"table":[138],"for":[139,283,297],"user":[140],"applications,":[141],"leaving":[142],"OS":[144],"dealing":[145],"with":[146,205,254],"smart":[147],"allocation,":[149],"auto-migration,":[151],"management":[153],"resources.":[156],"design":[158],"significantly":[159],"simplifies":[160],"parallel":[162],"level":[166],"comparable":[167],"homogeneous":[169],"programming.":[170],"To":[171],"facilitate":[172],"research,":[174],"we":[175,248],"also":[176],"present":[177],"fullsystem":[179],"cycle-level":[180],"simulator":[181],"named":[182],"SimCXL,":[183],"is":[185],"capable":[186],"modeling":[188],"all":[189],"CXL":[190,203,207],"sub-protocols":[191],"device":[193],"types.":[194],"SimCXL":[195],"has":[196],"been":[197],"rigorously":[198],"calibrated":[199],"against":[200],"real":[202],"testbed":[204],"various":[206],"accelerators,":[210],"showing":[211],"an":[212,287],"average":[213,288],"simulation":[214],"error":[215],"3":[217],"%.":[218],"Our":[219],"evaluation":[220],"reveals":[221],"that":[222],"CXL.cache":[223],"reduces":[224],"latency":[225],"68":[227],"%":[228],"increases":[230],"bandwidth":[231],"<tex":[233,278,291,298],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[234,279,292,299],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$14.4":[235],"\\times$</tex>":[236,281,296],"compared":[237],"DMA":[239],"transfers":[240],"at":[241],"cacheline":[242],"granularity.":[243],"Building":[244],"upon":[245],"these":[246],"insights,":[247],"demonstrate":[249],"benefits":[251],"two":[255],"killer":[256],"apps,":[257],"are":[259],"remote":[260,265],"atomic":[261],"operation":[262],"(RAO)":[263],"procedure":[266],"call":[267],"(RPC).":[268],"Compared":[269],"PCIe-NIC":[271],"design,":[272],"CXL-NIC":[273],"achieves":[274],"5.5":[276],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$40.2":[280],"speedup":[282,289],"RAO":[284],"offloading":[285],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$\\mathbf{1.":[293],"8":[294],"6}":[295],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">$\\mathbf{R":[300],"P":[301],"C}$</tex>":[302],"(de)serialization":[303],"offloading.":[304]},"counts_by_year":[],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2026-03-05T00:00:00"}