{"id":"https://openalex.org/W7167030261","doi":"https://doi.org/10.48550/arxiv.2607.00466","title":"ELDR: Expert-Locality-Aware Decode Routing for PD-Disaggregated MoE Serving","display_name":"ELDR: Expert-Locality-Aware Decode Routing for PD-Disaggregated MoE Serving","publication_year":2026,"publication_date":"2026-07-01","ids":{"openalex":"https://openalex.org/W7167030261","doi":"https://doi.org/10.48550/arxiv.2607.00466"},"language":null,"primary_location":{"id":"doi:10.48550/arxiv.2607.00466","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2607.00466","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"type":"preprint","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.48550/arxiv.2607.00466","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101660461","display_name":"Sangjin Choi","orcid":"https://orcid.org/0000-0002-1398-8391"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Choi, Sangjin","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5139907480","display_name":"Sukmin Cho","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Cho, Sukmin","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5139903686","display_name":"Yifan Xiong","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Xiong, Yifan","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5139875596","display_name":"Ziyue Yang","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Yang, Ziyue","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019825813","display_name":"Youngjin Kwon","orcid":"https://orcid.org/0000-0001-5602-2397"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Kwon, Youngjin","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5139881510","display_name":"Peng Cheng","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Cheng, Peng","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.18940000236034393,"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"}},"topics":[{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.18940000236034393,"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/T10715","display_name":"Distributed and Parallel Computing Systems","score":0.08089999854564667,"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":0.07370000332593918,"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/router","display_name":"Router","score":0.6948000192642212},{"id":"https://openalex.org/keywords/signature","display_name":"Signature (topology)","score":0.6383000016212463},{"id":"https://openalex.org/keywords/routing","display_name":"Routing (electronic design automation)","score":0.5717999935150146},{"id":"https://openalex.org/keywords/matching","display_name":"Matching (statistics)","score":0.5496000051498413},{"id":"https://openalex.org/keywords/cache","display_name":"Cache","score":0.43790000677108765},{"id":"https://openalex.org/keywords/code","display_name":"Code (set theory)","score":0.43549999594688416},{"id":"https://openalex.org/keywords/troubleshooting","display_name":"Troubleshooting","score":0.39980000257492065},{"id":"https://openalex.org/keywords/encoding","display_name":"Encoding (memory)","score":0.39089998602867126}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7264999747276306},{"id":"https://openalex.org/C2775896111","wikidata":"https://www.wikidata.org/wiki/Q642560","display_name":"Router","level":2,"score":0.6948000192642212},{"id":"https://openalex.org/C2779696439","wikidata":"https://www.wikidata.org/wiki/Q7512811","display_name":"Signature (topology)","level":2,"score":0.6383000016212463},{"id":"https://openalex.org/C74172769","wikidata":"https://www.wikidata.org/wiki/Q1446839","display_name":"Routing (electronic design automation)","level":2,"score":0.5717999935150146},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.5496000051498413},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5475000143051147},{"id":"https://openalex.org/C115537543","wikidata":"https://www.wikidata.org/wiki/Q165596","display_name":"Cache","level":2,"score":0.43790000677108765},{"id":"https://openalex.org/C2776760102","wikidata":"https://www.wikidata.org/wiki/Q5139990","display_name":"Code (set theory)","level":3,"score":0.43549999594688416},{"id":"https://openalex.org/C147494362","wikidata":"https://www.wikidata.org/wiki/Q2078905","display_name":"Troubleshooting","level":2,"score":0.39980000257492065},{"id":"https://openalex.org/C125411270","wikidata":"https://www.wikidata.org/wiki/Q18653","display_name":"Encoding (memory)","level":2,"score":0.39089998602867126},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.38370001316070557},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.3582000136375427},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.32019999623298645},{"id":"https://openalex.org/C104954878","wikidata":"https://www.wikidata.org/wiki/Q1648707","display_name":"Routing protocol","level":3,"score":0.3000999987125397},{"id":"https://openalex.org/C58328972","wikidata":"https://www.wikidata.org/wiki/Q184609","display_name":"Expert system","level":2,"score":0.29649999737739563},{"id":"https://openalex.org/C141603448","wikidata":"https://www.wikidata.org/wiki/Q134830","display_name":"Prefix","level":2,"score":0.29649999737739563},{"id":"https://openalex.org/C21308566","wikidata":"https://www.wikidata.org/wiki/Q7169365","display_name":"Permutation (music)","level":2,"score":0.27390000224113464},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.25850000977516174},{"id":"https://openalex.org/C2778572836","wikidata":"https://www.wikidata.org/wiki/Q380933","display_name":"Space (punctuation)","level":2,"score":0.25619998574256897},{"id":"https://openalex.org/C2776214188","wikidata":"https://www.wikidata.org/wiki/Q408386","display_name":"Inference","level":2,"score":0.2513999938964844}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.48550/arxiv.2607.00466","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2607.00466","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":"Preprint"}],"best_oa_location":{"id":"doi:10.48550/arxiv.2607.00466","is_oa":true,"landing_page_url":"https://doi.org/10.48550/arxiv.2607.00466","pdf_url":null,"source":{"id":"https://openalex.org/S4306400194","display_name":"arXiv (Cornell University)","issn_l":"2331-8422","issn":["2331-8422"],"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Preprint"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/8","score":0.4683011770248413,"display_name":"Decent work and economic growth"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"In":[0],"prefill-decode":[1],"(PD)":[2],"disaggregated":[3],"LLM":[4],"serving,":[5],"each":[6,37,93],"request":[7,94],"is":[8,27],"assigned":[9],"to":[10,95,131],"a":[11,62],"decode":[12,17,38,55,87],"worker":[13,98],"after":[14],"prefill.":[15],"Existing":[16],"routers":[18],"balance":[19],"only":[20],"load;":[21],"for":[22,57],"mixture-of-experts":[23],"(MoE)":[24],"models":[25,150],"this":[26],"incomplete:":[28],"equally":[29],"loaded":[30],"workers":[31],"can":[32],"differ":[33],"in":[34,123],"latency,":[35],"since":[36],"step":[39],"loads":[40],"the":[41,73,96,110,141],"weights":[42],"of":[43,129,143],"every":[44],"distinct":[45],"expert":[46,65,70],"its":[47,103],"batch":[48],"activates.":[49],"We":[50],"present":[51],"ELDR,":[52],"an":[53,69],"expert-locality-aware":[54],"router":[56],"PD-disaggregated":[58],"MoE":[59,149],"serving.":[60],"From":[61],"request's":[63],"prefill":[64],"activations,":[66],"ELDR":[67,134],"builds":[68],"signature":[71,84,106],"predicting":[72],"experts":[74],"it":[75],"will":[76],"activate":[77],"during":[78],"generation.":[79],"Offline,":[80],"balanced":[81],"K-means":[82],"partitions":[83],"space":[85],"across":[86,147],"workers;":[88],"online,":[89],"locality-band":[90],"routing":[91],"sends":[92],"least-loaded":[97],"among":[99],"those":[100],"best":[101],"matching":[102],"signature.":[104],"A":[105],"cache,":[107],"co-indexed":[108],"with":[109,154],"KV":[111],"cache":[112],"at":[113],"KV-block":[114],"granularity,":[115],"keeps":[116],"signatures":[117],"exact":[118],"under":[119],"prefix":[120],"caching.":[121],"Implemented":[122],"vLLM":[124],"and":[125,151],"evaluated":[126],"on":[127],"deployments":[128],"up":[130],"40":[132],"GPUs,":[133],"reduces":[135],"median":[136],"TPOT":[137],"by":[138],"5.9-13.9%":[139],"over":[140],"strongest":[142],"four":[144],"load-balancing":[145],"baselines":[146],"three":[148],"two":[152],"workloads,":[153],"model":[155],"outputs":[156],"unchanged.":[157]},"counts_by_year":[],"updated_date":"2026-07-28T07:46:37.118299","created_date":"2026-07-03T00:00:00"}
