I-Expert Parallelism Yokusebenzela i-MoE
Ukufana kochwepheshe kuhlukanisa 'ochwepheshe' abaningi bemodeli ye-Mixture-of-Experts kuwo wonke ama-GPU ahlukene ukuze idivayisi ngayinye ibambe ucezu lwamapharamitha kuphela.
Uhlolojikelele
It is the key to serving trillion-parameter MoE models cheaply, since only a few experts run per token.
I-Deep Dive
Isendlalelo se-Mixture-of-Experts (MoE) singena esikhundleni senethiwekhi eyodwa enkulu yokuphakelayo neziningi ezincane (ochwepheshe) kanye nerutha ekhetha ochwepheshe abaphezulu (okuvame ukuba ngu-1 noma 2) ngethokheni ngayinye. I-Expert parallelism (EP) ibeka ochwepheshe abahlukene kuma-GPU ahlukene. Uma kucatshangelwa, i-router inquma ukuthi yiluphi ochwepheshe oludinga ithokheni ngayinye, bese isinyathelo sokuxhumana sishova amathokheni kuma-GPU aphethe ochwepheshe abawakhethile, iqhube i-FFN, bese ishova imiphumela ibuye. Lokhu kuvumela imodeli ibe nengqikithi yemingcele emikhulu (incane) kuyilapho isebenzisa ingxenye encane kuphela yethokheni ngayinye (ama-FLOP aphansi). Amamodeli afana ne-Mixtral 8x7B, i-DeepSeek-V3, ne-GPT-OSS asebenzisa lokhu. Izingxenye eziqinile ziyi-load balancing kubo bonke ochwepheshe kanye nama-hops amabili abiza konke ukuya kukho konke isendlalelo ngasinye.
I-Technical Insight
Umakhenikha oyinhloko amaqoqo amabili okuhlanganisa konke kuya kukho konke kusendlalelo ngasinye se-MoE: thumela (thumela amathokheni kochwepheshe bawo) futhi uhlanganise (qoqa imiphumela emuva). Ngenxa yokuthi umzila uncike kudatha, inani lamathokheni ashaya uchwepheshe ngamunye liyahlukahluka, okubangela ukungalingani komthwalo kanye 'nama-stragglers.' Amasistimu wokunikeza isevisi engeza izici zamandla, izibhafa zochwepheshe, nokuwisa amathokheni noma ukuphediswa ukuze kugcinwe ama-GEMM (i-matrix iphindaphinda) umfaniswano, futhi ngokuvamile adlulela kukho konke ukuxhumana nezibalo zochwepheshe ukuze kufihlwe ukubambezeleka.
I-Strategic Impact
Izindleko kanye nesabelomali
Izinqumo zezakhiwo ziqhuba ukusebenza kanye nezindleko zokusebenza iminyaka.
Izinqumo ezicacile
Imfundo yobuchwepheshe isiza amaqembu ukuthi akhethe isitaki esifanele, hhayi nje esisha.
Ukulawulwa kwekhwalithi
Izinketho ezingcono zobunjiniyela zinciphisa izehlakalo ezinokwethenjelwa ekukhiqizeni.
Ikusasa Lokufana Kochwepheshe Lokusebenzela I-MoE
Lindela ukudizayina okuqinile komzila kanye nezingxenyekazi zekhompuyutha: ama-kernels ahlanganisiwe we-dispatch-compute-combine, ama-GEMM aqoqwe ahlanganisa ochwepheshe abaningi, kanye ne-NVLink/InfiniBand-aware all-to- all. Amasu afana ne-DeepSeek's axiliary-loss-free balancing kanye ne-node-limited routing kunciphisa ithrafikhi ye-cross-node. Ukunikezwa okuhlukanisiwe kuzonikezela ama-GPU 'ochwepheshe' ahlukene nama-GPU okunaka, futhi ukubalwa kochwepheshe okukhudlwana (amakhulu) ane-top-k ecolekile kuzophusha i-MoE ebuncaneni obukhulu kuyilapho igcina izindleko zethokheni ngayinye ziphansi.
Ukuqaliswa Komhlaba Wangempela
Ukukhonza i-Mixtral 8x7B kuwo wonke ama-2-4 GPUs ngokubeka ochwepheshe bayo abangu-2-4 ku-8 kudivayisi ngayinye.
I-DeepSeek-V3 isebenzisa i-node-limited routing ukuze ihlanganise ukuthi mangaki amanodi ochwepheshe bethokheni, ukusika i-inter-node konke kuye konke
Usebenzisa i-vLLM noma i-SGLang imodi ehambisanayo yochwepheshe ukusingatha imodeli egqagqene engu-200B+ endaweni eyodwa engu-8-GPU
Ukuhlanganisa ukufana kochwepheshe ne-tensor parallelism ezendlalelo zokunaka ekusetshenzisweni kwe-hybrid EP+TP
Izingozi & Guardrails
Ukuthuthukisa ibhentshimakhi eyodwa kungafihla ubuthakathaka obubanzi besistimu.
Izindleko zengqalasizinda nezokulungisa zivame ukubukelwa phansi.
Izikhala zokuphepha nokubonakala zingakhula njengoba izinhlelo ziba nzima kakhulu.
Ukuqalisa Umhlahlandlela
Chaza ukubambezeleka, ikhwalithi, nezindleko ezihlosiwe ngaphambi kokuqaliswa.
Ibhentshimakhi ngaphansi komthwalo wangempela nezimo zedatha.
Ukuqapha amathuluzi amaphutha, ukukhukhuleka, nomthelela wabasebenzisi.
Lungiselela izindlela zokuhlehlisa nezigameko ngaphambi kokukala.
Qhubeka Uhlole
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Umhlahlandlela olandelayo
Ukugcwalisa Ngaphambilini Okuhlukanisiwe kanye Nokusebenza Kwekhodi
Imibuzo evame ukubuzwa
What is Expert Parallelism for MoE Serving?
Ukufana kochwepheshe kuhlukanisa 'ochwepheshe' abaningi bemodeli ye-Mixture-of-Experts kuwo wonke ama-GPU ahlukene ukuze idivayisi ngayinye ibambe ucezu lwamapharamitha kuphela. Kuyisihluthulelo sokusebenzisa amamodeli we-MoE we-trillion-parameter ngemali ephansi, njengoba ochwepheshe abambalwa kuphela abasebenzisa ithokheni ngayinye.
Ngabe ukufana kochwepheshe kusabalalisa ini kuwo wonke ama-GPU?
Ukufana kochwepheshe kubeka ochwepheshe abahlukene (amanethiwekhi angaphansi e-FFN ongqimba lwe-MoE) kuma-GPU ahlukene, ngakho-ke idivayisi ngayinye iphethe iqoqo elincane kuphela lochwepheshe.
Iyiphi iphethini yokuxhumana ewumgogodla wokufana kochwepheshe be-MoE?
Isendlalelo ngasinye se-MoE ngokuvamile sidinga konke ukuze sithumele amathokheni kochwepheshe babo kanye nokunye konke ukuze sihlanganise imiphumela emuva.
Kungani i-MoE igcina ikhompuyutha yethokheni ngayinye iphansi naphezu kwamapharamitha amakhulu?
Irutha yenza kusebenze ochwepheshe be-top-k kuphela (ngokuvamile okungu-1-2) ngethokheni ngayinye, ngakho-ke ama-FLOP ahlala emancane nakuba imodeli inochwepheshe abaningi sebebonke.
Iyiphi inkinga ephakamayo ngoba umzila uncike kudatha?
Njengoba ukukhetha kwe-router kuncike kokufaka, abanye ochwepheshe bathola amathokheni amaningi kunabanye, okwenza ukungalingani komthwalo kanye nama-stragglers.
Iyiphi indlela evamile yokugcina i-matrix yochwepheshe iphindaphinda iyunifomu ngosayizi?
Izitaki eziphakelayo kusetha umthamo wochwepheshe ngamunye (isibalo esikhulu samathokheni) kanye namathokheni ephedi noma ehlise ngaphezu kwawo ukuze i-GEMM yochwepheshe ngamunye ibe nesimo esingabikezelwa.