Njikọ NVLink na GPU
NVLink na njikọ njikọ ndị metụtara ya bụ njikọ dị elu nke na-ahapụ ọtụtụ GPU ka ha na-agwa ibe ha okwu ozugbo na ngwa ngwa.
Nchịkọta
They are essential because training and serving the largest AI models requires hundreds or thousands of GPUs to act like one giant accelerator.
Ime miri emi
Otu GPU enweghị ike ijide ụdị kachasị ukwuu, yabụ na-ekewa ha n'ofe ọtụtụ ibe nke ga-agbanwerịrị data mgbe niile, dị ka ibu, gradients na mmemme. Ụgbọ ala PCIe ọkọlọtọ adịchaghị ngwa ngwa maka nke a, yabụ NVIDIA mepụtara NVLink, njikọ GPU-na-GPU ozugbo na-enye bandwidth dị elu na obere latency. Mpempe akwụkwọ NVSwitch na-agbatị nke a n'ime akwa ka GPU ọ bụla dị na sava wee nwee ike iru onye ọ bụla n'ọsọ zuru oke, na-atụgharị GPU asatọ ka ọ bụrụ otu nnukwu ebe nchekwa na ịgbakọ ọdọ mmiri. N'ọkwa, sistemu dị ka NVIDIA's NVL72 jikọtara ọtụtụ GPU n'elu ngalaba NVLink jikọtara ọnụ. Na-agafe otu rack, teknụzụ ịkparịta ụka n'Ịntanet dị ka InfiniBand na Ethernet (na-enwekarị RDMA) na-ekekọta ọtụtụ puku ọnụ n'ime ụyọkọ. Ogo nke njikọ njikọ ndị a na-amachi oke na etu ụdị nwere ike isi zụọ.
Nghọta nka nka
NVLink na-enye ụzọ a raara onwe ya nye n'etiti GPU nwere bandwit ọtụtụ oge nke PCIe na obere latency, na-ahapụ GPU ka ọ gụọ ebe nchekwa ibe ya dị ka a ga-asị na ọ bụ mpaghara. NVSwitch na-eme ihe dị ka obe dị elu nke mere na GPU niile dị na ọnụ na-ekwurịta okwu anaghị egbochi ya na bandwit zuru ezu. Ọrụ mkpokọta dị ka mbelata niile, nke nchikota gradients gafee GPUs n'oge ọzụzụ, na-agba ọsọ ngwa ngwa karịa akwa a, ya mere njikọ njikọ bandwidth na-enwe mmetụta siri ike ka ọzụzụ na-erute ọtụtụ ibe.
Mmetụta atụmatụ
Ọnụ ego na mmefu ego
Mkpebi ihe owuwu ụlọ na-akwalite arụmọrụ yana ọnụ ahịa ọrụ ruo ọtụtụ afọ.
Mkpebi doro anya
Nkà mmụta nka na-enyere ndị otu egwuregwu aka ịhọrọ nchịkọta ziri ezi, ọ bụghị naanị nke kachasị ọhụrụ.
Quality akara
Nhọrọ injinia ka mma na-ebelata ihe omume ntụkwasị obi na mmepụta.
Ọdịnihu nke NVLink na GPU Interconnects
Dị ka ụdị na-eto eto otu sava, njikọ njikọ na-aghọ usoro. NVLink na-anọgide na-enweta bandwit n'ọgbọ ọ bụla, na ngalaba NVLink dị oke (dị ka NVL72) na-agbasawanye ọnụ ọgụgụ GPU ndị na-akpa àgwà dị ka otu. Na-atụ anya ngalaba jikọtara ọnụ ka ukwuu, njikọta nke kọmpụta na ịkparịta ụka n'Ịntanet, njikọ anya iji belata ike n'ebe dị anya, yana mbọ ụlọ ọrụ na-emepe ụkpụrụ njikọ njikọ (dị ka UALink) na akwa ndị na-emegide. Scaling AI na-adabere na ịkwaga data n'etiti ibe dịka na ibe ha n'onwe ha.
Mmejuputa n'ezie n'ụwa
Ijikọ GPU asatọ n'ime otu ihe nkesa (dị ka usoro NVIDIA DGX) site na NVSwitch ka ha kesaa ebe nchekwa wee zụọ otu nnukwu ihe nlereanya ọnụ.
Na-eme mmekorita gradient niile na-ebelata n'ofe GPU n'oge ọzụzụ ekesa, nke NVLink bandwidth gbagoro.
Na-ejikọta ọtụtụ GPU n'ime usoro NVL72 nke nwere oke n'ime otu ngalaba NVLink jikọtara ọnụ maka ụdị ọnụọgụ trillion.
Na-ekekọta puku kwuru puku sava GPU n'ime ụyọkọ iji InfiniBand ma ọ bụ RDMA-over-Ethernet maka ọzụzụ ụdị ntọala buru ibu.
Ihe ize ndụ & okporo ụzọ nche
Ịkwalite otu akara ngosi nwere ike zoo adịghị ike sistemụ sara mbara.
A na-eledakarị ihe akụrụngwa na ụgwọ ọrụ anya.
Ọdịiche nchekwa na nleba anya nwere ike itolite ka sistemu na-adịwanye mgbagwoju anya.
Map mmejuputa
Kọwaa latency, ịdịmma na ebumnuche ọnụ ahịa tupu mmejuputa ya.
Benchmark n'okpuru ibu dị adị na ọnọdụ data.
Nleba anya akụrụngwa maka mperi, ịkpafu na mmetụta onye ọrụ.
Kwadebe ụzọ nzaghachi azụghachi azụ na ihe omume tupu ịchachaa.
Nọgide na-eme nchọpụta
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Ntuziaka na-esote
GPU vs TPU maka AI
Ajụjụ a na-ajụkarị
What is NVLink and GPU Interconnects?
NVLink na njikọ njikọ ndị metụtara ya bụ njikọ dị elu nke na-ahapụ ọtụtụ GPU ka ha na-agwa ibe ha okwu ozugbo na ngwa ngwa. Ha dị mkpa n'ihi na ọzụzụ na ijere ụdị AI kachasị ukwuu chọrọ narị otu narị ma ọ bụ puku kwuru puku GPU ime ihe dị ka otu nnukwu ngwa ngwa.
Kedu ihe kpatara ejikọtara ọnụ dị elu dị ka NVLink maka nnukwu ụdị AI?
Ụdị buru ibu gafere otu ikike GPU, ya mere, a na-agbasa ha n'ofe ọtụtụ ibe na-aga n'ihu na-ekerịta ihe ọ̀tụ̀tụ̀, gradients, na mgbakwasa, na-achọ njikọ ngwa ngwa.
Kedu uru NVLink na-enye karịa ụgbọ ala PCIe ọkọlọtọ maka nkwukọrịta GPU-na-GPU?
NVLink bụ njikọ GPU-na-GPU ozugbo nwere bandwidth dị ukwuu yana obere latency karịa PCIe, na-eme ka mgbanwe data ngwa ngwa n'etiti ibe.
Kedu ọrụ NVSwitch na sava multi-GPU?
NVSwitch na-agbatị NVLink n'ime akwa anaghị egbochi, na-ahapụ GPU niile nọ na ọnụ ọnụ ka ha na ibe ha na-akpakọrịta na ọsọ ọsọ.
Kedu ọrụ mkpokọta, nke a na-ahụkarị na ọzụzụ ekesa, na-erite uru siri ike site na njikọta ngwa ngwa?
Mbelata mkpokọta yana ikesa gradients n'ofe GPU niile usoro ọzụzụ ọ bụla, yabụ ọsọ ya dabere na bandwidth njikọ njikọ.
Ewezuga otu ihe nkesa, kedu teknụzụ na-ejikọ ọtụtụ puku ọnụ ọnụ GPU n'otu ụyọkọ?
N'ọtụtụ ụyọkọ, ịkparịta ụka n'Ịntanet dị ka InfiniBand ma ọ bụ Ethernet nwere RDMA na-ejikọta ọtụtụ ọnụ ọnụ, na-emeju NVLink n'ime sava ọ bụla.