Paralelismu toppalante ak bàyyi xel
Parallelism ci toppalante dafay xaaj benn toppalante bu gudd ci GPU yu bari ci dimension token (waxtu), ba noppi Ring Attention dafay may GPU yooyu ñu xayma bàyyi xel ci jaarale ko ci bloku butoŋu/valeur ci benn ring.
Résumé
Together they make million-token context windows feasible without any single GPU holding the whole sequence.
Plongeur bu xóot
Standard attention soxla bepp laaj ngir gis bepp butoŋu/valeur, kon memory activation bi dafay màgg ak guddaayi sequence bi te K/V bi dafa wara am. Parallelism ci toppalante dafay xaaj toppalante bi suko defee GPU bu nekk am token yu ko toppalante (ak seeni laaj, caabi, valeur). Ring Attention dafay raññe GPU yi ci benn ring bu logic: aparey bu nekk dafay tëye ay laajam ci barab bi, ci noonu la bloke K/V yi di jaar hop-by-hop ci biir ring bi. Bu blok bu nekk yegsee, GPU bi dafay xayma benn wàll ci bàyyi xel bi ba noppi dajale ay resultaa ci jëfandikoo online-softmax (benn pexe max/sum biy dawal ni FlashAttention). Ginaaw benn loop bu mat, laaj bu nekk dafa topp butoŋu bu nekk ndànk, amul benn GPU bu musa denc K / V bi yépp. Li gëna am solo mooy jokkoo K/V dafay jaxasoo ak xayma, moo tax du yokk lu bari ci njëgu montor bi.
Gis-gis xarala
Ring Attention mingi wéeru ci softmax ci net bi: mën nañu xayma attention bloc-par-bloc ci di tëye ab maksimum buy daw ak ab normalisatër buy daw, ba noppi nga rescale somme partiel yu njëkk yi su amee valeur bu gëna mag. Loolu mooy tax resultaa bi méngoo ak bàyyi xel bu mat sëkk ci wàllu math. Bague bi du romb tensor K/V kese (dayo balance ak block bi, du sequence bi yépp), te ginaaw jokkoo hop bu nekk dafay jaxasoo ak matmul block bi njëkk, bandwidth - du memory - mooy nekk facteur limitant.
njeextalu pexe
Njëgg ak budget
Dogal yi architecture di jël dañuy indi njariñ ak njëgu liggéey bi ay at ci ginaaw.
dogal yu gëna leer
Njàngalem xarala yi dafay jàppale ekip yi ñu tànn li gën, te baña yam ci li gëna bees daal.
Xool kalite
Tanneef yu gëna baax ci wàllu ingeñër dina wàññi jafe-jafe yi ci wàllu wóor ci liggéey bi.
Ëlëgu paralelism ak bàyyi xel ci ring
Paralelismu toppu-toppu mingi nekk lu ñuy jëfandikoo ci tàggat-yaram ak gis-gis bu yàgg, ñu koy faral di boole ak paralelismu tensor ak pipeline ci '4D' wala '5D' xeetu paralel. Variante yu melni bàyyi xel ci rayoŋ wala zigzag dañuy ekilibrewaat liggéey bi maskeer causal waral. Xaarandi topologie-xam ring ci kaw NVLink ak lëkkaloo bu gëna dëgër ak KV-cache offloading, puus guddaayi kontekst pratik ci fukki milioŋ ciy token ngir seet, codebases, ak këyitu gudd.
Doxal ci àdduna dëgg
Taggat ab 1M-token LLM ci xaaj bu nekk ci 8 GPUs ak Ring Attention
Megatron-LM dafay wàññi mémoire biy tàmbali ci LayerNorm ak gox yi bàyyi
Liggéeyukaay téere bi yépp wala dencukaay kode bu yaatu ci benn jàll te doo dagg
boole ay ring attention ak parallelism tensor ngir mëna méngale ab gis-gis bu gudd lool ci kaw ab node bu bari GPU
Risk yi ak balustrade yi
Optimize benn benchmark mën na nëbb ñakk kattan yu gëna yaatu ci sistem bi.
Njëg li ñuy fay ci infrastructure yi ak ci toppatoo dañuy faral di suufeel.
Bu sistem yi di gëna xawa jafee xam, jafe-jafe yi am ci wàllu kaaraange ak seetlu mën nañu gëna bari.
Roadmap ngir samp gi
Mandargal latency, kalite, ak njëg yi laata ngay jëfandikoo.
Benchmark ci biir sargal ak done yu dëggu.
Jumtukaay bi di saytu njuumte yi, derive bi ak njeextalu jëfandikukat bi.
Waajal rollback ak yooni tontu ci jafe-jafe yi laata ngay eskale.
Weyal di banneexu
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Gis bi ci topp
paralelism tensor ngir model yu mag
Laaj yi ñuy faral di laaj
What is Sequence Parallelism and Ring Attention?
Parallelism ci toppalante dafay xaaj benn toppalante bu gudd ci GPU yu bari ci dimension token (waxtu), ba noppi Ring Attention dafay may GPU yooyu ñu xayma bàyyi xel ci jaarale ko ci bloku butoŋu/valeur ci benn ring. Ñoom ñépp ñu ngi def ay palanteer yu am milioŋ ciy token yu mëna dem te benn GPU amul benn GPU buy tëye toppalante bi yépp.
Ci ban dimension la parallelism bu toppalante di xaaj done yi?
Parallelism ci toppalante dafay xaaj benn toppalante ci GPU yi ci axis token / time, kon aparey bu nekk amna token yu ko toppalante.
Lan mooy Ring Attention di jaar ci digganté GPU yuñ raññe ci benn ring?
GPU bu nekk dafay tëye laajteem yi ci dëkk bi, ba noppi di jaar ci bloku caabi / valeur hop-by-hop ci biir ring bi, suko defee laaj bu nekk mujjee gis caabi bu nekk.
Ban pexe mooy may ñu xayma bàyyi xel ci blok par blok te ba leegi mingi méngoo ak bàyyi xel bu mat sëkk?
Softmax ci net bi dafay topp ab maksimum buy daw ak ab somme, di rescaling resultaa yi ci nimu ko soxlaa, def xayma bu block-wise ci lim bu nuróo ak bàyyi xel bu mat sëkk.
Lu tax Ring Attention soxlawul benn GPU ngir denc K/V bi yépp?
Ndax K / V blocks yegsi incrementally ak GPU bu nekk accumulate partial attention, benn aparey musul soxla caabi / valeur set ci mémoire benn yoon.
Lan mooy Ring Attention di tere jokkoo bi di ëpp doole ci waxtu doxal bi?
Jokkoog K/V bu hop bu nekk dafay jaxasoo ak bariwaayu matrix bi ci blok bi fi nekk, kon diiru toxal bi dafay nëbbu ci ginaaw xayma bi.