QLoRA uye 4-Bit Yakanaka-Tuning
QLoRA idhizaini rinokutendera kuti utarise modhi huru yemutauro pane mutengi mumwechete GPU nekuchengeta modhi yakaomeswa nechando mumabhiti mana chete pahuremu.
Pfupiso
It made customizing 65B-parameter models possible on hardware that previously could only handle models a fraction of that size.
Kudzika Kwakadzika
Kazhinji, kugadzirisa zvakanaka modhi hombe kunoreva kurodha huremu hwese mune 16-bit chaiyo uye kugadzirisa ese, izvo zvinoda ndangariro huru. QLoRA inosanganisa pfungwa mbiri. Kutanga, inoomesa modhi yakadzidziswa uye inoiisa pasi kusvika ku4 bits, ichirova ndangariro zvakapetwa kana. Chechipiri, inoshandisa LoRA: pachinzvimbo chekuvandudza huremu huremu matrices, inobaya madiki anodzidzisika epasi-redhiyo adapta matrices padivi pavo, saka mashoma miriyoni paramita anovandudzwa. Iyo 4-bit base inogara yakagadziriswa nepo gradients ichiyerera chete kuburikidza nediki adapter. Yakaunzwa muna 2023 naDettmers nevamwe vaaishanda navo, QLoRA yakaratidza kuti kunyatso-tuning ye65B modhi pane imwe 48GB GPU inogona kuenderana nemhando yeakazara gumi nematanhatu-yakanaka-tuning.
Technical Insight
QLoRA yakaunza matanho matatu. NF4 (4-bit NormalFloat) imhando yedata yakagadziridzwa yebhero-curve kugovera kweneural uremu, ichipa kunaka kuri nani pane plain int4. Kaviri quantization inomanikidza iyo quantization constants ivo pachavo, kuchengetedza imwe ndangariro. Peji optimizers anoshandisa GPU-CPU yakabatana ndangariro kutora spikes panguva refu kutevedzana, kudzivirira kunze-kwe-memory kubondera. Munguva yekupfuura nekumashure, 4-bit huremu hunoderedzwa kusvika 16-bit ichangoburwa-munguva yekuti matrix iwande, yoraswa.
Strategic Impact
Kumhanya uye chiyero
Mutauro workflows inogona kufamba nekukurumidza pasina kupira kuenderana.
Svika uye svika
Inopamhidzira kupinda mumitauro yese nemataera ekutaurirana.
Sarudzo dzakajeka
Zvikwata zvinogona kupedza nguva yakawanda pakutonga uku otomatiki ichibata kudzokorora.
Ramangwana reQLoRA uye 4-Bit Yakanaka-Tuning
4-bit fine-tuning yave tsika yakajairika, uye tsvagiridzo ikozvino inosundidzira kune yakaderera chaiyo, kusanganisira 2-bit uye 1-bit (ternary) inomiririra. Nyowani quantization zvirongwa seAWQ, GPTQ, uye HQQ inokwenenzvera kuwedzera, nepo matekiniki akadai seQA-LoRA achivavarira kuchengetedza modhi yakaverengerwa kunyangwe mushure mekubatanidza adapter. Sezvo akavhurika-huremu mamodheru achikura, tarisira chishandiso chinobvumira hobbyists kunyatso-tune 70B-plus modhi pane imwechete yekutamba GPU kuti ive tsika, demokrasi kugadzirisa.
Real-World Implementation
Kutanga kwakanaka-tunes 70B Llama modhi pane imwechete 48GB GPU yekuvaka mutengi-rutsigiro mubatsiri nezwi rayo remhando pasina kuhaya sevha sevha.
Mutsvagiri ane mutengi mumwechete RTX 4090 anogadzirisa yakavhurika modhi kune niche yekurapa mibvunzo-inopindura dhatabheti husiku.
Mugadziri anogadzira akawanda madiki, anochinjika LoRA maadapter emabasa akasiyana, ese achigovana imwe 4-bit base modhi yakarodha mundangariro.
A hobbyist anonatsa modhi pane yavo yekutaura matanda kutevedzera imwe nzira yekunyora vachishandisa yemahara Colab-giredhi hardware.
Njodzi & Guardrails
Chokwadi chehuroyi chinogona kupinda chinyararire mishumo, kuyerera kwetsigiro, kana tsvakiridzo.
Kunzwa nekukasira kunogona kugadzira mhedzisiro isingaenderane pane zvikumbiro zvakafanana.
Sensitive text data inogona kuburitswa kana zvidhiraivho zvisina kusimba.
Implementation Roadmap
Tsanangura chimiro chekubuda, toni, uye mhando zviyero usati waburitsa.
Mhinduro dzepasi neakavimbika masosi pese pazvine basa.
Chengetedza ongororo yekuongorora yemunhu kune yakakwira-stake zvinobuda.
Tevera maitiro ekutadza uye dzidzisazve kukurudzira kana mafambiro ebasa nguva nenguva.
Ramba Uchiongorora
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Gaidhi rinotevera
Kuramba Sampling Fine-Tuning
Mibvunzo inowanzo bvunzwa
What is QLoRA and 4-Bit Fine-Tuning?
QLoRA idhizaini rinokutendera kuti utarise modhi huru yemutauro pane mutengi mumwechete GPU nekuchengeta modhi yakaomeswa nechando mumabhiti mana chete pahuremu. Yakagadzira 65B-parameter modhi inogoneka pane Hardware yaimbogona kubata mamodheru chidimbu chesaizi iyoyo.
Ndeipi yakakosha ndangariro-yekuchengetedza pfungwa kuseri kwe '4-bit' chikamu cheQLoRA?
QLoRA inochengetedza huremu hwakaomeswa nechando pa4 bits pamutengo, ichicheka ndangariro zvakapetwa kana zvichienzaniswa ne16-bit.
Munguva yeQLoRA-tuning, ndeapi maparamita anogadziridzwa ne gradient descent?
Iyo base modhi yakaomeswa nechando; iyo chete jekiseni yakaderera-chinzvimbo adapta matrices anogashira gradient zvigadziriso, chinova chikamu chidiki chemaparamita.
Chii chinonzi NF4 muchirevo cheQLoRA?
NF4 (NormalFloat 4-bit) imhando yedata rakagadzirirwa kutenderedza bhero-curve kugovera kweneural network uremu kuti inyatso kurongeka pane plain int4.
Ndeipi dambudziko rinoitwa 'paged optimizers' muQLoRA kero?
Mapeji optimizers anoshandisa GPU-CPU yakabatana ndangariro kutora ndangariro spikes, kudzivirira kunze-kwe-memory kubondera panguva yekudzidziswa pane refu mapikisi.
Ndeapi huremu hwe4-bit hunoshandurwa kudzokera kune chaiyo chaiyo panguva yekudzidziswa?
4-bit huremu hunoderedzwa kusvika 16-bit chaiyo panhunzi kune yega yega matrix kuwanda, ipapo iyo yepamusoro-chaiyo kopi inokandwa kure kuchengetedza ndangariro.