XaivInfiniBandthaum koj inference workload nyob los yog tuag los ntawm kwv yees tus Tsov tus tw latency, thiab xaivRoCE(RDMA dhau Converged Ethernet) thaum koj xav tau RDMA-chav kawm kev ua tau zoo ntawm Ethernet ntaub koj tuaj yeem ntsuas, faib, thiab ua haujlwm nrog pab pawg koj twb muaj. Tsis muaj kev xaiv yeej txhua qhov chaw. Txoj cai hu yog nyob ntawm koj tus qauv inference, koj lub hom phiaj p99 thiab p999 latency, GPU scale, pob nyiaj siv, thiab ntau npaum li cas lossless -Ethernet tuning txawj ntse nyob rau hauv koj pab neeg.
Yog vim li cas lub Network tseem ceeb tshaj li Inference Teams xav tau
Tau ntau xyoo, qhov kev xav tau raug kho raws li qhov yooj yim ib nrab ntawm GPU zaj dab neeg: tus qauv thauj khoom ntawm ib leeg, kev thov ua haujlwm ntawm nws tus kheej, tsawg heev sab hnub tuaj - tsheb khiav sab hnub poob. Daim duab ntawd yog tam sim no dhau lawm. Cov kev xav niaj hnub no tau nthuav dav zuj zus, thiab ntau tus qauv tso siab rau ntawm cov ntaub.
- Tensor parallelism kev sib twcais ib txheej hla GPUs, yog li txhua kauj ruam token ua rau tag nrho - txo lossis tag nrho - sib sau ua haujlwm ntawm lawv. Qhov ntawd yog nquag, latency-sensitive, hla-GPU tsheb uas GPUs thaiv thaum tos.
- Pipeline parallelismtes ua haujlwm los ntawm ib theem mus rau tom ntej, feem ntau hla cov nodes, ntxiv hla -node dependencies rau txhua qhov kev xa mus.
- Disaggregated prefill thiab txiav txim siabcais cov laij lej-hnyav prefill theem los ntawm latency-sensitive decode phase, ces txav KV cache ntawm lawv. Cov kev hloov pauv no loj thiab tawg, thiab txhua qhov kev ncua sijhawm qhia ncaj qha raws li lub sijhawm qeeb dua-rau-thawj-token thiab inter-token latency.
- Retrieval -augmented tiam (RAG)ntxiv rau sab hnub tuaj -sab hnub poob tsheb mus rau vector thiab nrhiav kev pabcuam. Nws feem ntau tsis tshua muaj latency- tseem ceeb dua li kev ua haujlwm sib koom ua ke, tab sis nws tseem thauj cov ntaub, tshwj xeeb tshaj yog nyob rau hauv cov lus nug siab.
- Ntau- neeg xauj tsevmuab ntau tus qauv thiab cov neeg siv rau ntawm tib daim ntaub, qhov twg microbursts thiab nrov nrov -cov teebmeem hauv zej zog dhau los ua qhov kev pheej hmoo tseem ceeb.
Thaum lub network yog lub hauv paus caj dab, cov tsos mob yog kim: lub sij hawm siab dua - rau- ua ntej - token, GPUs nres thaum lawv tos cov ntaub ntawv, cov khoom siv uas tawg hauv qab tawg, thiab tsis ruaj khov p95 thiab p99. Thiab ntawm no yog ib feem uas mus txog qhov ntsuas: nruab nrab latency zais tag nrho nws. Kev tsim cov kev xav tau txiav txim siab ntawm tus Tsov tus tw, tsis yog lub ntsiab lus.
InfiniBand vs RoCE: Summary Table for AI Inference
| Qhov xwm txheej | InfiniBand | RoCE (RoCEv2) |
|---|---|---|
| Hom ntaub | Lub hom phiaj-ua, tsis muaj HPC/AI ntaub | RDMA nqa dhau routable Ethernet |
| Zoo tshaj ntawm | Latency- tseem ceeb, nruj ua ke pawg | Tus nqi -ntau npaum, Ethernet- haiv neeg, hloov tau yooj yim |
| Latency nyob rau hauv load | Tsawg thiab txiav txim siab los ntawm kev tsim | Tsawg, tab sis nyob ntawm cov ntaub tuning |
| Tail latency (p99/p999) | Raws li txawm nyob rau hauv hnyav collectives | Muaj zog thaum tsim thiab saib xyuas zoo |
| Lossless cwj pwm | Haiv neeg, ntaub -level | Yuav tsum tau lossless -Ethernet configuration |
| Tus nqi | Siab upfront, nplooj siab ntaub | Tsawg dua yog tias Ethernet uas twb muaj lawm tuaj yeem rov siv dua |
| Ecosystem | Ntau concentrated | Broad Ethernet ecosystem |
| Kev txawj ua haujlwm | InfiniBand kev tswj ntaub | Ethernet plus lossless (DCB) kev txawj ntse tuning |
| Scaling qauv | Centralized, nruj tswj ntaub | Huab-style, routable, ntau- tus neeg xauj tsev |
| Strongest inference haum | Tiag -lub sijhawm, nruj SLA, ntau-node pab | Batch, RAG, GPUaaS, tus nqi -scaling rhiab heev |
InfiniBand yog dab tsi?
InfiniBand yog lub hom phiaj- tsim cov ntaub network tsim los ntawm qhov pib rau qis latency, siab dhau, thiab tsis muaj kev sib txuas lus. Nws tsis yog qhov nrawm dua ntawm Ethernet. Nws los nrog nws tus kheej lub tswv yim channel adapters, keyboards, subnet manager, cabling ecosystem, thiab congestion- tswj qauv. Nws tus nqi txhais tau tias yog tus cwj pwm txiav txim siab: ntau GPUs tuaj yeem sib txuas lus nrog lub sijhawm nruj, thiab cov ntaub yuav coj tus cwj pwm tsis tu ncua txawm tias kev sib koom ua ke hnyav.
Niaj hnub no AI- taw qhia InfiniBand platforms txuas ntxiv lub hauv paus nrog lub peev xwm tsom squarely ntawm cov GPU loj. NVIDIA's Quantum InfiniBand kab, piv txwv li, ntxivadaptive routing, nyob rau hauv -network xam, thiab telemetry- raws li congestion tswj, uas pab cov ntaub kis tau tus mob intelligently thiab cais ib tug tenant lub load los ntawm lwm tus. Rau kev xam pom, InfiniBand khwv tau nws qhov chaw thaum lub sijhawm ua haujlwm tsis tuaj yeem zam kev ntxhov siab lossis thaum ntau lub GPU nodes yuav tsum pauv cov ntaub ntawv sai thiab tsis tu ncua.
Kev lag luam tawm - tawm yog tus nqi, ecosystem concentration, thiab kev ua haujlwm tshwj xeeb. Ib qho tshwj xeeb InfiniBand npuag txhais tau hais tias mob siab rau cov keyboards, adapters, cables los yog optical modules, thiab engineers nyiam nrog InfiniBand ntaub tswj. Rau ib lub koom haum uas twb tau khiav loj Ethernet vaj tse, bolting ntawm ib qho ntaub nyias nyias ntxiv qhov nyuaj ntawm kev yuav khoom, khoom seem - qhov kev npaj, thiab saib xyuas nyiaj siv ua haujlwm.
RoCE (RDMA dhau Converged Ethernet) yog dab tsi?
RoCE coj RDMA, lub cim xeeb ncaj qha- rau- cov ntaub ntawv nco tau txav nrog CPU qis dua, mus rau Ethernet networks. RoCEv2, tus qauv siv nyob rau hauv cov chaw zov me nyuam niaj hnub no, yog routable hla Txheej 3 IP tes hauj lwm thiab tau ua qauv los ntawmInfiniBand Trade Association. Qhov kev ua tau zoo li ntawd yog qhov ua rau RoCE haum ib txwm nyob rau hauv Ethernet nplooj - tus txha nraub qaum tsim thaum rov siv cov NICs paub, keyboards, optics, thiab cov cuab yeej saib xyuas.
Qhov kev ntes yog tias RDMA thauj khoom suav tias yog ze rau -tsis muaj network. Muab ib pob ntawv pov tseg thiab kev thauj mus los poob rov qab rau tus cwj pwm retransmission uas wrecks tus Tsov tus tw latency. Yog li RoCE xav tau Ethernet hauv qab nws kom coj zoo li cov ntaub tsis muaj ntaub, thiab qhov ntawd nyob ntawm kev ua tib zoo teeb tsa ntawm ob lub tswv yim tshwj xeeb:Priority Flow Control (IEEE 802.1Qbb), uas nres ib chav tsheb khiav ib leeg los tiv thaiv te, thiabKev Ceeb Toom Txog Kev Cuam Tshuam Qhia Nthuav (ECN), uas taw qhia congestion thaum ntxov yog li cov neeg xa khoom qeeb ua ntej buffers overflow. Ntxiv rau qhov kev tswj kab ke, kev faib tsis pub, thiab QoS daim ntawv qhia, thiab nws pom tseeb tias qhov siab -RoCE kev ua tau zoo tsis yog Ethernet zoo tib yam.
Ua tau zoo, RoCE xa tawm txaus latency thiab dhau los ntawm ntau qhov kev pabcuam kev tsim khoom, thiab ntau qhov kev ua haujlwm tsis txaus ntseeg tsawg dua li cov kev qhia sib faib, uas ua haujlwm hauv RoCE qhov kev pom zoo. Ua tsis tau zoo, nws ua rau cov pob ntawv poob, lub taub hau - ntawm - kab thaiv, kev sib kis, thiab cov tails tsis ruaj khov, tag nrho cov uas txhais ncaj qha rau hauv cov kev pabcuam tsis zoo.
InfiniBand vs RoCE Latency: Qhov twg Zoo dua rau p99 Inference?
Ob leeg ntaub tuaj yeem xa cov siab -bandwidth, qis-latency networking. Lawv txawv li cas lawv mus txog ntawd. InfiniBand yog txiav txim siab los ntawm kev tsim kho, yog li jitter nyob qis txawm tias nyob rau hauv kev sib xyaw ua ke. RoCE tuaj yeem phim nws rau ntau qhov haujlwm, tab sis qhov tshwm sim nyob ntawm Ethernet ntaub thiab nws zoo npaum li cas.
Los ntawm kev xaav xaav, qhov teeb meem tiag tiag hauv kev tsim khoom tsis tshua muaj siab tshaj bandwidth. Nws yog jitter nyob rau hauv sib xyaw, tawg, ntau- neeg xauj tsheb. RoCE ntaub uas aces ib tug huv si, iperf-style throughput test tseem tuaj yeem nco nws lub hom phiaj p99 lub sijhawm microbursts thiab kev sib cav nkag mus rau hauv daim duab. Qhov sib txawv ntawm qhov ntsuas qhov ntsuas thiab qhov SLA ntau lawm yog qhov kev xav tsis thoob feem ntau nyob.
InfiniBand nyiam muaj ntug thaum:
- Cov kev pabcuam muaj nruj p99 lossis p999 lub hom phiaj latency.
- Inference spans ntau GPU nodes nrog tensor los yog pipeline parallelism, los yog siv disaggregated prefill thiab txiav txim.
- Kev siv GPU yog rhiab heev rau network ncua, yog li cov khw muag khoom kim heev.
- Cov pawg khiav haujlwm me me ntawm qhov siab - cov haujlwm tseem ceeb uas qhov kev kwv yees tau dhau qhov hloov tau yooj yim.
RoCE feem ntau zoo txaus thaum:
- Kev thov feem ntau yog ywj siab, los yog kev sib txuas yog xoob.
- Kev ua haujlwm khiav hauv ib lub node lossis ib qho me me ntawm cov nodes.
- Batch throughput tseem ceeb tshaj li ultra- qis qis latency.
- Pab pawg twb ua haujlwm Ethernet, thiab tus nqi lossis tus neeg muag khoom yooj yim yog qhov tseem ceeb.
- Pawg txhawb nqa ntau tus neeg xauj tsev lossis sib xyaw ua haujlwm.
RoCE vs InfiniBand Tus Nqi: Dab tsi tiag Tsav TCO?
RoCE feem ntau hu ua qhov kev xaiv pheej yig dua, tab sis tus nqi hloov pauv yog ib feem me me ntawm daim duab. Kev sib piv tiag tiag saib ntawm tag nrho pawg: network adapters lossis HCAs, keyboards, optical modules, DAC, AOC, thiab fiber ntau cabling, khib topology, lub zog thiab cua txias, lub network kev khiav hauj lwm, kev saib xyuas thiab telemetry, engineering sij hawm, spare qhov chaw, neeg muag khoom txhawb, thiab txoj kev mus rau 400G los yog 800G.
InfiniBand feem ntau yog tus nqi siab dua vim nws xav tau cov ntaub tshwj xeeb thiab cov khoom tshwj xeeb. Nyob rau hauv ib puag ncig uas txiav txim siab tus cwj pwm yog qhov tseem ceeb tshaj plaws, nws tuaj yeem txo qhov kev sib tw thiab kev daws teeb meem uas tsis muaj Ethernet ntaub xav tau. RoCE txo qis tus nqi kho vajtse thaum muaj Ethernet vaj tse uas twb muaj lawm, nrog rau txoj cai Data Center Bridging kev txhawb nqa, tuaj yeem rov qab siv tau, tab sis nws hloov kev siv zog rau hauv kev tsim, siv tau, saib xyuas, thiab daws cov ntaub tsis zoo. Tus nqi qis - tus nqi RoCE tsim yuav kim sai yog tias nws ua rau tsis ruaj khov latency thiab rov tua hluav taws.
Tus nqi thiab kev pheej hmoo tsom rau ntawm lub cev txheej thaum nrawm nce. Ntawm 400G thiab 800G, cov khoom siv kho qhov muag yog ob qho tib si daim nqi thiab hom tsis ua haujlwm. Feem ntau siab - chaw nres nkoj ceev tsaws rauQSFP-DD los yog cov qauv piv txwv, thiab phim txoj caitib- hom lossis multimode opticsrau koj qhov kev ncav cuag yog ib txoj hauv kev yooj yim tshaj plaws kom tsis txhob siv nyiaj ntau ntawm cov ntaub uas tsis xav tau ntev -mob qhov deb.
Muab qhov tseeb: RoCE tsis yog qhov kev xaiv pheej yig dua yog tias koj pab neeg tsis muaj kev poob zoo -Ethernet kev txawj ntse. Kev txuag ntawm cov khoom siv yuav tau noj sai sai los ntawm cov nqi tsim khoom ntawm kev ua kom cov ntaub ruaj khov.
Scalability thiab kev ua haujlwm
Scalability yog ntau tshaj qhov chaw nres nkoj suav. Nws suav nrog qhov yooj yim npaum li cas cov ntaub tau xa mus, saib xyuas, nthuav dav, thiab rov zoo dua thaum qee yam ua tsis tiav.
InfiniBand muaj zog thaum pawg yog tsim los ua ib qho kev ua haujlwm siab - ntaub los ntawm ib hnub. Nws muab kev coj tus cwj pwm zoo ib yam ntawm qhov ntsuas, tab sis nws cia siab tias InfiniBand- cov cuab yeej tshwj xeeb, xws li tus tswj hwm subnet thiab kev tswj hwm cov ntaub, thiab cov neeg ua haujlwm uas nyiam nrog InfiniBand cov ntsiab lus. Qhov ntawd ua rau nws haum rau lub hauv paus AI pawg tsim nyob ib ncig ntawm GPU workloads.
RoCE slots rau hauv Ethernet data center tsim: nplooj - qaum topologies, IP routing, ECMP, thiab paub txog kev saib xyuas. Qhov ntawd yog vim li cas nws txaus siab rau huab -style thiab ntau- tus neeg xauj tsev GPU infrastructure. Kev qhuab ntuas nws xav tau yog qhov sib xws. PFC, ECN, QoS, kev tswj tsis pub dhau, thiab kev tswj kev sib tsoo yuav tsum tau tsim kom muaj kev sib koom ua ke thoob plaws txhua txoj hauv kev, vim tias kev teeb tsa me me nyob rau hauv ib lub ces kaum ntawm cov ntaub tuaj yeem kis tau thiab ua rau ntau qhov chaw ua haujlwm ib zaug. Lub cev txheej yuav tsum tau teev kom huv si; siab -densityMPO thiab MTP lub cev thiab kev sib tsoo cableua kom cov nplooj loj hlob tuaj - qaum ntaub tswj tau es tsis tig txhua qhov kev nthuav dav mus rau hauv kev sib tw cabling.
Daim iav -cov duab taw tes yog tsim nyog hais tias: InfiniBand yog ib qho nyuaj rau pom tseeb thaum qhov kev xav nyob twj ywm feem ntau nyob rau hauv ib qho ntawm ib leeg thiab cov ntaub yog tsis tshua muaj zog.
Uas Network rau Txhua Inference Workload
| Ua haujlwm | Network siab | Zoo pib taw tes | Vim li cas |
|---|---|---|---|
| Tiag -lub sijhawm LLM tham lossis tus pabcuam, QPS siab | High tail-latency rhiab heev, hla-GPU ua ke | InfiniBand, los yog ua tib zoo tu RoCE | p99/p999 kev txiav txim siab tiv thaiv lub sijhawm-rau-thawj-token thiab inter-token latency |
| Batch embedding lossis offline inference | Tshaj tawm- taw qhia, latency- ua siab ntev | RoCE | Tus nqi -scaling npaum, jitter tsis yog qhov txwv |
| RAG muab kev pabcuam | Sab hnub tuaj -west rau vector thiab tshawb, nruab nrab | RoCE | Ethernet yooj, retrieval tsis tshua xav tau InfiniBand kev txiav txim siab |
| Multi-Tenant GPUaaS | Sib xyaw, tawg, nrov nrov- neeg zej zog | RoCE los yog hybrid | Ethernet multi-tenancy thiab ECMP, nrog kev ua tau zoo- cais tawm |
| Disaggregated prefill thiab txiav txim siab | Loj, tawg KV-cache hloov chaw hla cov nodes | Nyob ntawm, benchmark nws | Hla -node latency hits TTFT, yog li siv tau raws li kev tsheb khiav tiag tiag |
| Siab -ntau zaus pom zoo | nruj latency, ntau cov lus me me | InfiniBand | Tight, sib xws tail latency |
| Kev tswj hwm tus kheej lossis kev nyab xeeb - qhov kev xav tseem ceeb | Daim ntawv cog lus SLA, qis jitter | InfiniBand | Kev txiav txim siab tus cwj pwm, siab SLA- raug nplua |
Thaum RoCE zoo txaus, thiab thaum nws dhau los txaus ntshai
RoCE yog qhov zoo txaus rau kev thov ywj siab lossis tsis muaj kev sib koom ua ke, dhau los ntawm- kev taw qhia ua haujlwm batch, thiab ntau- pawg neeg xauj tsev uas koj tuaj yeem kho qhov kev sib cais, tshwj xeeb tshaj yog thaum pab pawg ua tau zoo hauv Data Center Bridging Ethernet. Nws dhau los ua kev pheej hmoo hauv kev tshwj xeeb, paub tau:
- PFC cua daj cua dub.Ncua thav duab propagate upstream thiab khov tsheb uas tsis muaj dab tsi cuam tshuam nrog qhov qub congestion.
- Lub taub hau - ntawm - kab thaiv.Coarse qhov tseem ceeb daim ntawv qhia cia ib chav kawm congested nyob rau lwm tus sib koom ib kab.
- ECN ua yuam kev.Kos lig dhau lawm thiab koj tau txais tee; cim dhau aggressively thiab koj throttle throughput yam tsis tsim nyog.
- Microburst congestion.Sub-thib ob bursts overflow buffers tab sis nyob twj ywm tsis pom los saib xyuas cov qauv ntawd ntawm ib qho - thib ob daws teeb meem.
- Configuration tsis sib xws.Kev teeb tsa tsis sib haum thoob plaws nplooj thiab txha nraub qaum ua rau muaj kab mob sib kis ntau dua li nyob hauv zos.
Tsis muaj ib qho ntawm cov no yog vim li cas kom zam RoCE. Lawv yog cov laj thawj los tsim cov ntaub tsis muaj kev sib koom ua ke mus txog qhov kawg thiab nqis peev hauv kev nplua -grained, microburst- paub telemetry ua ntej koj ntsuas.
Thaum InfiniBand Tsim Nyog Nws, thiab Thaum Koj Muaj Ntau Tshaj
InfiniBand tsim nyog nws cov nqi them rau p99 thiab p999 cov hom phiaj nruj, nruj ua ke ntau -node pab, thiab lub hom phiaj- cov haujlwm tseem ceeb uas SLA nplua yog siab, tshwj xeeb tshaj yog rau cov GPU tshwj xeeb uas tsim los ntawm cov ntaub. Koj yuav muaj peev xwm overbuying thaum inference nyob rau hauv ib lub node, thaum ua hauj lwm yog throughput-oriented batch, thaum koj xav tau tib ntaub los kuj nqa cia, tswj, thiab multi- neeg xauj huab tsheb, los yog thaum koj tsuas tsis muaj peev xwm khiav InfiniBand zoo.
Cov nqi uas tsis tshwm sim ntawm qhov kev hloov pauv lus yog qhov tseeb: ecosystem concentration, nyiaj siv ua haujlwm ntawm kev khiav ob daim ntaub nyob rau tib lub sijhawm nrog koj Ethernet network, thiab cais kev npaj rau spares, optics, thiab saib xyuas.
Yuav Ua Li Cas Ntsuas InfiniBand vs RoCE Ua ntej koj xaiv
Tsis txhob txiav txim siab txog lub koob npe nrov lossis daim ntawv spec. Txiav txim siab ntawm tus qauv ntsuas uas zoo li kev tsim khoom. Ib qho kev xyaum ua ntu zus:
- Txhais cov SLA hauv tails.Teem p50, p95, p99, thiab p999 rau lub sijhawm-rau-thawj-token thiab inter-token latency, tsis yog qhov nruab nrab xwb.
- Replay tiag tiag tsheb.Siv bursty, sib xyaw qauv ntau thiab tsawg- tus neeg xauj tsev sib koom ua ke es tsis yog ib qho dej huv.
- Load rau congestion.Thawb cov ntaub kom txog thaum nws tau sib cav tiag tiag, tom qab ntawd ntsuas kev siv GPU. Yog tias GPUs nres ntawm lub network, cov ntaub yog koj lub caj dab.
- Saib cov txee raug.Taug qab ncua thav duab, ECN cov cim, pob ntawv poob, rov xa rov qab, qhov chaw nres nkoj yuam kev, thiab, ntawm 400G thiab 800G, FEC yuam kev.
- Validate lub cev txheej.Ntxuav, raug teeb tsa fiber ntau;ceev faj fiber ntau installationtiv thaiv kev sib cuam tshuam, nyuaj-kom- kuaj pom qhov ua yuam kev uas siab - cov kev sib txuas ceev tau yooj yim.
Yog tias RoCE tuav nws lub hom phiaj p99 raws li qhov tseeb, sib cav, ntau- cov neeg xauj tsev thauj khoom nrog cov txee ruaj khov, nws yog qhov muaj zog thiab tus nqi- xaiv tau zoo. Yog tias nws tsuas dhau qhov kev xeem huv ib zaug xwb -kwj, koj tseem tsis tau sim qhov uas txiav txim siab koj SLA.
Feem ntau yuam kev kom zam
- Piv txwv tias txhua qhov kev xav yog kev sib txuas sib txuas.Qee qhov kev xav tau yooj yim thiab ywj siab; qee qhov yog faib, latency-sensitive, thiab bandwidth- tshaib plab. Kho nws txhua yam yooj yim ua rau underbuilt infrastructure.
- Muab piv tsuas yog nruab nrab latency.Ntau lawm inference nyob ntawm tus Tsov tus tw. Ib txwm ntsuas p95, p99, thiab p999 raws li kev tsheb khiav tiag tiag.
- Kho RoCE li ntsaws-thiab- ua si Ethernet.Siab -RoCE kev ua tau zoo xav tau kev txhob txwm tsis muaj kev poob siab-ntaub tsim, kev tswj tsis pub dhau, thiab kev soj ntsuam tas li.
- Xaiv InfiniBand tsuas yog vim nws nrawm dua.Qhov kev xaiv ua tau zoo tshaj plaws tsis yog qhov kev xaiv ua lag luam zoo tshaj plaws. Yog tias qhov kev ua haujlwm tsis xav tau tus cwj pwm txiav txim siab, RoCE tuaj yeem xa cov nqi zoo dua.
- Tsis quav ntsej lub cev txheej.Nyob rau ntawm 400G thiab 800G, cables, optics, connectors, thiab fiber huv huv tsim intermittent yuam kev uas nyuaj nrhiav thiab kim kho.
FAQ
Q: Puas yog InfiniBand zoo dua RoCE rau AI inference?
A: Tsis yog universally. InfiniBand yog qhov zoo dua rau tus Tsov tus tw nruj -latency thiab nruj ua ke nrog ntau-node inference. RoCE yog qhov zoo dua thaum tus nqi, Ethernet compatibility, thiab hloov tau los yog ntau- tus neeg xauj tsev scaling tseem ceeb dua thiab cov khoom ua haujlwm tuaj yeem ua rau muaj kev ntxhov siab me ntsis.
Q: Puas yog RoCE txaus rau LLM kev xav?
A: Feem ntau yog, tshwj xeeb tshaj yog rau ib leeg -node los yog xoob ua ke ua ke ua haujlwm thiab rau zoo-tuned multi- pawg neeg xauj tsev. Rau cov tensor loj- lossis cov kav xa dej- kev ua haujlwm sib luag, lossis kev sib cais ua ntej thiab txiav txim siab nrog cov hom phiaj p99 nruj, siv RoCE raws li qhov tseeb load lossis xav txog InfiniBand.
Q: Puas yog AI inference xav tau InfiniBand?
A: Tsis tas li. Ntau cov kev pabcuam kev xav tau ua haujlwm zoo ntawm qhov zoo -tsim RoCE ntaub. InfiniBand khwv tau nws cov nqi thaum txiav txim siab yog daim ntawv cog lus lossis kev ua haujlwm nruj ua ke thiab latency - tseem ceeb.
Q: Dab tsi yog qhov tseem ceeb ntawm kev siv RoCE?
A: Configuration. RoCE nyob ntawm qhov raug tuned lossless Ethernet, suav nrog PFC, ECN, QoS, thiab kev tswj tsis tau. Kev teeb tsa tsis raug ua rau cov pob ntawv poob, lub taub hau - ntawm - kab thaiv, PFC cua daj cua dub, lossis tsis ruaj khov latency.
Q: Yuav tsum GPUaaS cov chaw muab kev pabcuam siv InfiniBand lossis RoCE?
A: RoCE, lossis hybrid, yog ib txwm muaj rau ntau- tus neeg xauj tsev GPUaaS vim Ethernet muaj kev ua haujlwm tau zoo, ECMP, thiab kev paub txog kev ua haujlwm. Cov chaw muab kev pabcuam uas muag tus nqi them, latency-SLA tier qee zaum ntxiv cov pas dej InfiniBand rau nws.
Kab hauv qab
Rau AI inference, InfiniBand thiab RoCE yog ob qho tib si siv tau, thiab lawv ua haujlwm sib txawv. Xaiv InfiniBand thaum koj xav tau qhov qis tshaj plaws sib xws -latency network rau lub sijhawm tiag tiag -, SLA- rhiab heev, los yog sib txuas sib txuas sib txuas. Xaiv RoCE thaum koj xav tau ib qho scalable, Ethernet-raws li, tus nqi-ntau cov ntaub rau batch inference, multi-cov kev pab cuam GPU, RAG workloads, thiab hloov tau yooj yim infrastructure.
Qhov kev txiav txim siab yuav tsum pib nrog kev ua haujlwm, lub hom phiaj latency, pawg pawg, koj lub peev xwm ua haujlwm, thiab kev txhim kho txoj hauv kev, tsis yog nrog cov txheej txheem. Yog tias koj pawg yuav tsum tuav nruj p99 nyob rau hauv qhov hnyav, InfiniBand tsim nyog xav txog qhov hnyav. Yog tias koj lub hom phiaj yog txhawm rau ntsuas kev lag luam thoob plaws Ethernet cov ntaub ntawv chaw, RoCE feem ntau yog txoj hauv kev ua tau zoo dua. Txawm li cas los xij, kev ntsuas hauv qab ntau lawm-zoo li thauj khoom ua ntej koj cog lus.
