Data center disaggregation cais kev suav, nco, cia, thiab kev sib txuas rau hauv kev ywj pheej, sib sau cov peev txheej es tsis txhob xauv lawv hauv thaj chaw ruaj khov. Qhov kev sib cais ntawd tsim kom muaj kev tsim vaj tsev tshiab: cov txheej txheem sib txuas ntawm cov pas dej ua ke yuav tsum xa cov bandwidth txaus, tsawg txaus latency, thiab txaus ncav cuag kom tag nrho lub cev coj raws li ib qho kev sib koom tes ntaub. Optical interconnect yog cov thev naus laus zis thauj khoom uas ua rau lub luag haujlwm no nce ntxiv - tshwj xeeb yog qhov kev sib txuas tooj liab cuam tshuam rau lub cev tsis pub dhau qhov deb, lub zog, thiab teeb liab kev ncaj ncees.
Kab lus no piav qhia txog qhov kev sib txuas ntawm optical txhawb kev sib koom ua ke, qhov twg nws ua tau zoo tshaj tooj liab, nws cuam tshuam li cas rau CXL thiab co-pob optics, thiab thaum nws ua rau muaj kev nkag siab zoo los txais yuav.
Data Center Disaggregation yog dab tsi?
Nyob rau hauv ib txwm neeg rau zaub mov- qauv centric, CPU, nco, cia, thiab kev sib txuas yog bundled rau hauv ib lub chassis. Koj yuav ib tus neeg rau zaub mov, thiab koj tau txais ib qho piv txwv ntawm tag nrho plaub - seb koj cov haujlwm puas xav tau qhov piv txwv lossis tsis. Data center disaggregation lov uas bundle sib nrug. Txhua hom peev txheej tau teeb tsa rau hauv nws tus kheej lub pas dej, thiab cov khoom ua haujlwm tsuas yog kos qhov lawv xav tau los ntawm txhua lub pas dej ua ke dhau ntawm cov ntaub sib koom.
Qhov no tseem ceeb vim tias cov haujlwm niaj hnub no tsis tshua muaj kev sib npaug. Ib txoj haujlwm kev cob qhia cov qauv lus loj tuaj yeem ua rau lub cim xeeb GPU thiab sab hnub tuaj -west bandwidth thaum nyuam qhuav kov hauv zos cia. Lub sijhawm tiag tiag - cov kav dej ntsuas lub sijhawm yuav xav tau lub peev xwm nco tau loj heev tab sis tsuas yog suav nruab nrab xwb. Hauv cov neeg rau zaub mov -centric tsim, qhov tsis sib haum xeeb ua rau muaj peev xwm stranding: idle CPU cycles zaum nrog lub cim xeeb tag, lossis lub peev xwm khaws cia uas tsis muaj haujlwm siv.
CovQhib Compute Project (OCP)tau tsav tsheb sib cais khib tsim txij li thaum nruab nrab-2010s, thiab hyperscalers zoo li Meta thiab Microsoft tau siv disaggregated cia thiab kev sib txuas ntawm nplai. Qhov tshwm sim ntawmCompute Express Link (CXL)tau txuas lub zeem muag ntawd rau kev nco tsis sib xws, ua rau cov qauv tsim ua kom muaj txiaj ntsig zoo rau ntau qhov chaw ib puag ncig.
Yog vim li cas ib txwm neeg rau zaub mov -Centric Designs ntaus ib phab ntsa
Ob lub zog yog thawb cov pab pawg hauv tsev mus rau kev sib cais: kev siv siab thiab bandwidth siab.
Ntawm kev siv sab, cov khoom siv ruaj khov tsim cov khib nyiab ntawm qhov ntsuas. Kev tshawb fawb kev lag luam qhia tias kwv yees li 25% ntawm DRAM muaj peev xwm hauv cov servers ib txwm siv tsis tau nyob rau nruab nrab, txawm tias nco suav txog ze li ib nrab ntawm tag nrho cov nqi server. Ua ntau ntau ntawm ntau txhiab tus nodes, lub peev xwm tso tseg no sawv cev rau lub peev txheej tseem ceeb thiab lub nra hnyav.
Nyob rau sab bandwidth, AI kev cob qhia pawg thiab siab -kev ntsuas kev ua tau zoo tsim cov qauv tsheb sib txawv uas txawv ntawm cov tsoos sab qaum teb- sab qab teb lub vev xaib- pab thauj khoom. Cov kev ua haujlwm no ua rau sab hnub tuaj hnyav - tsheb khiav sab hnub poob - GPU- mus rau -GPU, accelerator- mus rau - nco, thiab node- mus rau -node - hla ntau pua lossis ntau txhiab qhov kawg. Ib txwm neeg rau zaub mov-centric topologies nrog luv tooj liab khiav ntawm lub thawv ruaj tsis tau tsim rau tus qauv ntawd. Raws li kev sib txuas ceev nce ntawm 400G mus rau 800G thiab dhau mus, cov kev txwv hluav taws xob ntawm tooj liab ua nyuaj rau kev ua haujlwm ib puag ncig.
Optical Interconnect ua haujlwm li cas hauv Disaggregated Data Center?
Thaum xam, nco, thiab cov khoom siv accelerator zaum hauv cov pas dej sib cais, cov ntaub sib txuas cov pas dej ua ke dhau los ua qhov ua tau zoo- txheej txheem tseem ceeb. Optical interconnect pab cov txheej txheem los ntawm kev hloov hluav taws xob teeb liab mus rau hauv lub teeb, xa cov ntaub ntawv dhautib - homlos yogmultimode fiber ntau, thiab hloov rov qab mus rau hluav taws xob ntawm qhov kawg tau txais.
Lub physics ntawm optical thauj khoom muab nws cov qauv zoo rau txoj haujlwm no. Cov teeb liab teeb pom kev hauv fiber ntau nyob deb tsawg attenuation ib 'meter' dua hluav taws xob teeb liab nyob rau hauv tooj liab, uas txhais tau hais tias optical links muaj peev xwm tswj tau cov teeb liab zoo nyob rau hauv ntev kev deb yam tsis muaj lub hwj chim - tshaib plab teeb liab txias (retimers, DSPs, equalizers) uas tooj liab xav tau ntawm siab dua speeds. Ntawm 800 Gbps, passive tooj liab yog qhov ua tau zoo txog li 3-5 meters. Cov kab hluav taws xob nquag txuas ntxiv mus rau kab tias 7 meters. Kev sib txuas kho qhov muag niaj hnub ncua ntev li 100 meters mus rau 2 mais ntawm tib cov ntaub ntawv tus nqi, thiab kev sib txuas ntawm optics tuaj yeem ncav cuag kaum mais.
Nyob rau hauv ib tug disaggregated architecture, qhov no ncav kom zoo dua tsis yog abstract. Nws ncaj qha txiav txim siab nyob deb npaum li cas cov peev txheej sib txawv tuaj yeem zaum thaum tseem coj zoo li kev sib koom ua ke. Tshwj xeeb:
- Nyob rau hauv lub racking:tooj liab tseem dominates rau kev sib txuas luv heev - server- mus rau - sab saum toj - ntawm - khib hloov, GPU- rau -GPU hauv ib lub tais. Ntawm qhov deb li ntawm 2-3 meters, tooj liab yog yooj yim dua, pheej yig dua, thiab qis dua -latency.
- Rack-rau-rack (2–100 m):Qhov no yog qhov twg optical interconnect dhau los ua qhov ua tau zoo ntawm 400G thiab siab dua. Txuas lub computer khib rau lub cim xeeb pas dej ua ke nyob rau hauv ib lub khib uas nyob ib sab, los yog txuas GPU tais hla ib kab, feem ntau yuav tsum tau lub bandwidth ceev thiab ncav cuag fiber ntau muab.Fiber optic cable sib dhosthiabKev sib txuas ntawm MPO / MTPyog tus qauv rau txoj kev no.
- Chav- mus rau-chav thiab lub tsev- mus rau - lub tsev (100 m–10+ km):Tsuas yog kev thauj khoom kho qhov muag tsuas yog siv tau ntawm cov kev ncua deb thiab nrawm. Qhov kev nthuav dav no tseem ceeb rau lub tsev kawm ntawv -kev sib cais, qhov chaw khaws cia, kev suav rov qab, lossis kev puas tsuaj- cov peev txheej rov qab los zaum hauv cov tsev sib cais.
Optical Interconnect vs Copper hauv Disaggregated Data Centers
Qhov kev xaiv ntawm optical thiab tooj liab tsis yog binary - nws yog scope -dependent. Ntawm no yog yuav ua li cas ob qho tib si sib piv thoob plaws qhov tseem ceeb tshaj plaws nyob rau hauv ib tug disaggregated tsim:
| Qhov xwm txheej | Tooj | Optical Fiber |
|---|---|---|
| Tswv yim ncav cuag 800G | 3-7 m (passive / nquag) | 100 m – 10+ km (nyob ntawm hom optics) |
| Bandwidth ceev | Tsawg rau kab; cables yog thicker ntawm siab dua speeds | Siab dua rau cable; nyias fiber ntau txhawb cov chaw nres nkoj siab |
| Lub zog ib ntsis (ntev ncav cuag) | Siab dua - DSPs, retimers, thiab teeb liab txias yuav tsum tau | Txo ntawm qhov sib npaug ncav cuag thiab nrawm |
| Latency (kev ncav cuag luv) | Tsawg heev (passive tooj liab tsis muaj kev hloov pauv nyiaj siv ua haujlwm) | Me ntsis siab dua vim electro- hloov kho qhov muag |
| EMI tiv thaiv kab mob | Muaj kev cuam tshuam rau electromagnetic cuam tshuam | Kev tiv thaiv kab mob - tseem ceeb hauv qhov ntom ntom, siab - lub zog ib puag ncig |
| Cable hnyav thiab airflow | Heavier thiab bulkier ntawm cov suav ntau dua | Sib zog thiab thinner, zoo dua rau airflow nyob rau hauv ntom racks |
| Tus nqi (luv ncav cuag, qis ceev) | Lower pem hauv ntej | Siab dua pem hauv ntej |
| Tus nqi (system-theem, ntawm qhov ntsuas) | Nws tuaj yeem ua kom siab dua thaum lub zog ua kom txias, txias, thiab ncav cuag qhov txwv | Feem ntau txo tus nqi ntawm cov tswv cuab ntawm 400G + thiab txoj kev ntev dua |
| Qhov zoo tshaj plaws haum nyob rau hauv disaggregated tsim | Intra-tray, intra-rack short links | Rack-rau-rack, kab-rau- kab, chav- mus rau-chav, thiab tsev kawm ntawv- nplai |
Txoj kev coj mus siv tau: siv tooj liab qhov twg luv -kev yooj yim nyob deb tseem yeej. Siv qhov muag pom qhov twg ncav cuag, bandwidth ceev, lub zog siv hluav taws xob, lossis kev tswj xyuas kab hluav taws xob los ua qhov kev txwv. Nyob rau hauv ib qho chaw tsis sib haum xeeb, qhov kev sib koom kho qhov muag ntawm tag nrho cov kev sib txuas loj hlob vim hais tias cov architecture nws tus kheej tsim ntev dua, siab dua -bandwidth paths ntawm cov chaw sib cais. Rau kev sib piv sib sib zog nqus ntawm hom xov xwm, saibfiber optic vs tooj liab cables: uas yog rau koj xa mus.
Cov txiaj ntsig tseem ceeb ntawm Optical Interconnect rau Disaggregation
Siab dua bandwidth ceev rau cov khoom sib cais
Disaggregation ua rau kom qhov ntim ntawm cov tsheb hla hla cov txheej txheem sib txuas vim tias cov peev txheej uas ib zaug tau co- nyob tam sim no sib txuas lus ntawm cov ntaub. Optical fiber txhawb qhov xav tau siab dua rau ib - fiber ntau bandwidth thiab ntau fibers rau ib cable. Ib leegribbon fiber ntau cabletuaj yeem nqa tau ntau pua ntawm fibers hauv kev sib cog lus -section, ua kom hom chaw nres nkoj ceev uas disaggregated GPU pawg thiab nco pas xav tau.
Tsawg zog thiab thermal load ntawm nplai
Lub hwj chim efficiency tseem ceeb dua nyob rau hauv ib tug disaggregated tsim vim hais tias cov interconnect txheej yog ib tug loj feem ntawm tag nrho cov system tsheb. Ntawm 800G thiab saum toj no, kev sib txuas tooj liab hla qhov kev ncua deb xav tau lub zog - kev ua haujlwm hnyav DSP ntawm ob qho kawg. Kev sib txuas ntawm qhov muag ntawm qhov sib npaug ntawm qhov sib npaug thiab qhov deb siv tsawg zog ib ntsis. NVIDIA cov ntaub ntawv thev naus laus zis ntawm nws cov co-packaged optics switching platform qhia a3.5 × txo kev siv hluav taws xobpiv rau cov tsoos pluggable transceivers. Ntawm cov ntaub ntawv chaw ntsuas, qhov sib txawv ntawd txhais ncaj qha rau hauv cov nqi hluav taws xob qis thiab txo cov cua txias.
Modular, ywj siab scaling
Ib qho ntawm cov lus cog tseg tseem ceeb ntawm kev sib cais yog tias suav, nco, thiab khaws cia tuaj yeem ntsuas tus nqi sib txawv. Optical interconnect txhawb cov lus cog tseg vim tias ntxiv peev xwm rau ib lub pas dej ua ke tsis tas yuav rov tsim kho tag nrho cov ntaub.Pluggable optical modulestuaj yeem hloov kho lossis ntxiv ntau ntxiv - los ntawm 400G mus rau 800G rau 1.6T - yam tsis tau hloov cov nroj tsuag fiber ntau.
Flexibility rau heterogeneous workloads
Thaum cov peev txheej tau sib sau ua ke thiab sib txuas los ntawm kev ua haujlwm siab - cov ntaub ntawv kho qhov muag, cov pab pawg muaj peev xwm tuaj yeem muab cov peev txheej rau kev ua haujlwm dynamically es tsis txhob ua haujlwm ua haujlwm nyob ib ncig ntawm cov servers ruaj khov. Qhov kev hloov pauv ntawd tseem ceeb tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas AI kev cob qhia cov haujlwm, tiag tiag - lub sijhawm inference, analytics pipelines, thiab khaws cia- cov ntawv siv hnyav ua ke thiab sib tw rau ntau hom kev pab.
Optical Interconnect Li cas rau CXL thiab Co-Packaged Optics
CXL: txheej txheej txheej rau kev nco thiab kev sib koom
CXL (Compute Express Link) thiab optical interconnect daws qhov sib txawv ntawm qhov teeb meem disaggregation. CXL yog cov txheej txheem qhib cov txheej txheem - ua rau ntawm PCIe lub cev txheej - uas ua rau cov cache- sib txuas lus ntawm CPUs, cov khoom siv nco, thiab cov khoom siv nrawm. Nws txhais tau hais tias cov peev txheej sib cais tuaj yeem koom ua ke thiab sib koom ua haujlwm tau zoo ntawm qib software thiab raws tu qauv.
CXL Consortium, uas nws cov tswv cuab suav nrog Intel, AMD, NVIDIA, Samsung, Microsoft, Google, thiab Meta, tso tawm CXL 3.1 thaum Lub Kaum Ib Hlis 2023 nrog kev txhawb nqa meej raumulti-theem hloov thiab ntaub-raws li disaggregationdhau ntawm khib. CXL 3.0 tau qhia txog kev txhawb nqa txog li 4,096 nodes hauv cov ntaub sib koom ua ke, ua kom cov khib- nplai thiab muaj peev xwm ua tau pawg- nplai kev nco.
Optical interconnect yog lub cev thauj mus los uas tuaj yeem nqa CXL tsheb (thiab lwm yam kev cai) ntawm cov nodes faib. Ib pab neeg soj ntsuam CXL-raws li kev sib koom ua ke ntawm kev nco thiab ib pab neeg soj ntsuam kev sib txuas ntawm qhov muag feem ntau ua haujlwm ntawm tib qhov kev txiav txim siab sib cais los ntawm ntau lub kaum ntse ntse - ib qho hais txog cov txheej txheem thiab cov peev txheej- sib koom cov laj thawj, lwm qhov hais txog kev thauj mus los ntawm lub cev.
Co-packaged optics: thawb optical los ze zog rau lub nti
Co-packaged optics (CPO) mus ntxiv los ntawm kev sib koom ua ke cov tshuab kho qhov muag ncaj qha mus rau tib lub pob substrate li qhov hloov ASIC lossis GPU, tsis yog cia siab rau nyias cov pluggable transceivers txuas ntawm cov kab hluav taws xob ntawm lub vaj huam sib luag pem hauv ntej. Qhov no tshem tawm qhov ntev tshaj plaws thiab lub zog tshaj plaws - txoj kev tshaib plab hauv lub cev.
Ntawm GTC 2025, NVIDIA tshaj tawm nws thawj zaugco-packaged silicon photonics hloov platforms(Quantum-X Photonics thiab Spectrum-X Photonics), xa mus txog 409.6 Tb/s bandwidth nrog 512 chaw nres nkoj ntawm 800 Gb/s. NVIDIA CEO Jensen Huang tau sau tseg tias kev ntsuas mus rau ib lab GPUs siv cov pa pluggable transceivers yuav siv kwv yees li 180 MW hauv transceiver fais fab ib leeg - ib daim duab tsis ruaj khov uas CPO tau tsim los hais.
CPO tsis yog ib yam dab tsi txhua pab pawg soj ntsuam kev sib cais yuav tsum tau xa mus rau hnub no. Pluggable optical modules tseem yog daim ntawv tseem ceeb rau feem ntaudata center fiber ntau optickev xa tawm thiab yuav txuas ntxiv mus txog yam tsawg kawg ntawm xyoo 2020s. Tab sis CPO sawv cev rau cov kev taw qhia ntawm txoj kev kho qhov muag, thiab cov pab pawg npaj cov pawg AI loj lossis tom ntej no - cov ntaub ntawv sib cais yuav tsum taug qab nws txoj kev loj hlob ze.
Thaum twg Optical Interconnect ua qhov kev nkag siab zoo tshaj plaws?
AI thiab accelerator -hnyav ib puag ncig
AI kev cob qhia pawg yog ib qho kev siv zog tshaj plaws rau kev sib txuas kho qhov muag hauv cov ntsiab lus tsis sib xws. Cov tshuab no ua rau sab hnub tuaj loj heev - sab hnub poob tsheb hla GPU- mus rau -GPU thiab GPU- mus rau - txoj kev nco. Raws li pawg loj hlob los ntawm ntau pua mus rau txhiab tus GPUs, qhov ncav cuag thiab bandwidth xav tau sai tshaj qhov tooj liab tuaj yeem txhawb nqa. Hauv NVIDIA's GB200 NVL72 architecture, piv txwv li, cov nqi sib txuas (xws li kho qhov muag transceivers) sawv cev 15-18% ntawm tag nrho cov nqi pawg, thiab optical transceivers suav txog kwv yees li 60% ntawm tus nqi sib txuas. Cov ntaub ntawv nyiaj txiag thiab kev ua tau zoo rau optimizing cov txheej txheem kho qhov muag yog qhov tseem ceeb.
Memory pooling thiab composable infrastructure
Yog tias koj pab neeg soj ntsuam CXL-raws li kev sib koom ua ke ntawm lub cim xeeb, txheej txheej thauj mus los ntawm lub cev yuav tsum txhawb nqa qhov kev sib cais yam tsis tau ntxiv qhov tsis txaus ntseeg lossis txwv qhov ntsuas. CXL 3.1 qhia meej meej lub hom phiaj ntawm cov ntaub- ntsuas qhov sib cais dhau ntawm cov khib nyiab, uas txhais tau hais tias txoj kev sib tshuam yuav ncua ntev dua li cov tsoos intra-server nco tsheb npav. Optical links yog lub ntuj haum rau cov kev.
Loj -scale ib puag ncig nrog cov kev xav tau tsis sib xws
Optical interconnect kuj ua rau muaj kev nkag siab ntau dua thaum suav, nco, thiab khaws cia yuav tsum ntsuas ntawm tus nqi sib txawv. Yog tias koj lub peev xwm suav tau loj hlob 3 × ib xyoos tab sis kev cia khoom loj hlob 1.5 ×, ib qho kev sib koom ua ke tso cai rau koj nthuav txhua lub pas dej ntawm nws tus kheej - thiab kev sib txuas kho qhov muag ua rau lub cev ua tau yam tsis muaj kev tsim kho cov cabling txhua lub sijhawm.
Thaum tsis muaj kev nkag siab
Optical interconnect tsis yog qhov chaw pib zoo rau txhua qhov chaw. Yog tias koj lub chaw khaws ntaub ntawv ua haujlwm feem ntau sib npaug, dav dav - lub hom phiaj ua haujlwm ntawm cov khoom siv ib txwm siv, thiab koj cov khib nyiab - rau - khib tsheb yog me me thiab zoo- tau txais kev pabcuam los ntawm cov khoom siv tooj liab uas twb muaj lawm, tus nqi thiab qhov nyuaj ntawm kev kho qhov muag - thawj daim ntaub yuav tsis raug cai. Ib yam li ntawd, yog tias koj tab tom ua haujlwm ntawm qhov ntsuas qhov twg ob peb lub kaum lub servers ua tau raws li koj xav tau, kev sib cais nws tus kheej yuav qhia txog kev ua haujlwm nyuaj dua li nws txuag. Lub architecture them tawm thaum teev, heterogeneity, thiab kev tsis txaus ntawm cov peev txheej yog qhov tseeb thiab ntsuas tau - tsis yog qhov tseeb.
Dab tsi los ntsuas ua ntej xa tawm
1. Daim ntawv qhia txog koj lub fwj tiag tiag
Pib nrog ib lo lus nug meej: dab tsi yog qhov kev txwv kev khi? Puas yog nws ncav cuag (txoj kev tooj liab luv dhau rau koj qhov rack layout)? Bandwidth ceev (tsis txaus throughput ib cable los pub koj GPU pawg)? Fais fab (kev sib txuas hluav taws xob siv hluav taws xob ntau dhau ntawm 400G +)? Kev siv cov peev txheej (servers overprovisioned ntawm ib qho axis thiab tshaib plab rau lwm qhov)? Optical interconnect yog qhov tseem ceeb tshaj plaws thaum lub bottleneck yog lub cev thiab ntsuas, tsis yog thaum nws tau txais los ua ib qho kev nthuav dav dav dav.
2. Ntsuas tag nrho cov nqi system, tsis yog tus nqi cable
Ib qho yuam kev feem ntau yog muab piv rau tus nqi ntawm cov tooj liab cable rau tus nqi ntawm ib qhokho qhov muag kabnyob rau qhov chaw kaw nyob ib leeg. Qhov kev sib piv ntawd yog kev dag. Qhov kev sib piv muaj txiaj ntsig suav nrog kev siv hluav taws xob, thermal nyiaj siv ua haujlwm (thiab tus nqi cua txias nws tsim), qhov chaw nres nkoj ntom ntom ntawm ib chav tsev khib nyiab, kev siv tau, kev hloov kho yooj yim, thiab tus nqi ntawm cov khoom siv pov tseg hauv qhov dav dav. Hauv ntau qhov chaw sib cais ntawm 400G thiab siab dua, fiber ntau tus nqi ntawm cov tswv cuab yog qis dua tooj liab thaum koj suav rau tag nrho cov kab ke.
3. Tshawb xyuas kev sib raug zoo thiab kev npaj ua haujlwm
Ntsuasfiber optic cable kuajcov kev xav tau, module kev sib cuam tshuam, kev soj ntsuam cov cuab yeej, thiab koj pab neeg ua haujlwm paub txog fiber ntau. Pluggable optical modules (OSFP, QSFP-DD) yog qhov zoo- tus qauv thiab kev txhawb nqa dav dav, tab sis koj pab neeg ua haujlwm yuav tsum tau xis nyob nrog kev tuav fiber ntau, ntxuav, thiab daws teeb meem ua ntej koj xa mus rau qhov ntsuas. Xav txog kev pib nrog tus kws tsav dav hlau uas koj tuaj yeem lees paub cov haujlwm ua haujlwm no.
4. Npaj rau cov nroj tsuag fiber ntau lub neej ntev
Ib qho txiaj ntsig tseem ceeb ntawm kev tsim kho fiber ntau yog tias cov nroj tsuag tsis muaj fiber ntau - cov cables, thaj vaj huam sib luag, thiab txoj hauv kev - tuaj yeem txhawb nqa ntau tiam neeg ntawm kev siv tshuab transceiver. Lub qhov dej - tsimdata center connectivityfiber ntau cog niaj hnub no rau 400G tuaj yeem txhawb 800G thiab 1.6T hloov khoom dua tshiab los ntawm kev sib hloov transceivers, tsis muaj rub cov cables tshiab. Qhov ntawd ua rau kev nqis peev thawj zaug hauv fiber ntau tiv thaiv dhau 10-xyoo kev npaj qab ntug.
Ib Txoj Kev Txais Txoj Cai
Kauj Ruam 1: Txheeb xyuas ib qho chaw txwv.Nrhiav qhov chaw uas tooj liab ncav cuag, lub hwj chim, bandwidth ceev, los yog cov peev txheej stranding twb ua rau ntsuas qhov mob. Qhov ntawd tej zaum yuav yog GPU pawg nthuav dav, khib-rau- khib nyiab hauv ib puag ncig kev tshuaj ntsuam, lossis lub cim xeeb ua tus tsav.
Kauj ruam 2: Pilot thiab validate.Siv optical interconnect nyob rau hauv lub domain. Ntsuas tus cwj pwm latency, lub zog kos, kev ua haujlwm nyuaj, thiab kev nthuav dav kev lag luam tawm tsam koj lub hauv paus uas twb muaj lawm.
Kauj Ruam 3: nthuav tawm raws li cov ntaub ntawv pov thawj.Siv cov ntaub ntawv tsav tsheb los tsim kev lag luam thiab cov ntaub ntawv thev naus laus zis rau kev siv dav dav. Disaggregation thiab optical migration yog tsis tshua muaj zoo tshaj li ib tug loj -bang project. Phase rollout cia koj kawm, kho, thiab tsim kom muaj kev ntseeg siab rau lub koom haum.
Daim Ntawv Txiav Txim Siab: Puas yog Optical Interconnect Txoj Cai rau Koj Qhov Kev Txiav Txim Siab?
- Puas yog koj khib-rau- khib lossis chav tsev- mus rau-chav txuas qhov deb tshaj tooj liab qhov ua tau mus txog ntawm koj lub hom phiaj ceev?
- Koj puas npaj yuav xa 400G lossis siab dua txuas nrawm dua nyob rau lub sijhawm ze?
- Puas yog kev siv hluav taws xob los ntawm kev sib txuas hluav taws xob los ua ib feem tseem ceeb ntawm koj cov ntaub ntawv chaw siv hluav taws xob?
- Puas yog koj ntsuas CXL-raws li kev sib koom ua ke ntawm kev nco, kev tsim kho vaj tse, lossis GPU pawg nthuav dav?
- Puas yog cov peev txheej stranding (tsis ua haujlwm suav, nco, lossis cia xauv hauv cov servers ruaj khov) yog qhov teeb meem ntsuas tus nqi?
- Puas yog koj ib puag ncig yuav tsum ntsuas suav, nco, thiab khaws cia ntawm tus nqi sib txawv?
Yog tias peb lossis ntau dua ntawm cov no siv tau, kev sib txuas kho qhov muag tsim nyog tau txais kev ntsuam xyuas hnyav ua ib feem ntawm koj txoj kev sib cais.
FAQ
Dab tsi yog optical interconnect nyob rau hauv ib tug data center?
Optical interconnect yog ib qho kev thauj mus los uas siv lub teeb liab dhaufiber ntau optic cablesnqa cov ntaub ntawv ntawm cov khoom siv hauv network, servers, keyboards, chaw cia khoom, thiab cov chaw muab kev pabcuam hauv thiab nruab nrab ntawm cov chaw khaws ntaub ntawv. Nws muaj ntau dua bandwidth, ntev ncav cuag, thiab qis zog ib ntsis piv rau tooj liab ntawm qhov sib npaug speeds - ua rau nws tseem ceeb tshwj xeeb tshaj yog rau disaggregated thiab AI-oriented architectures.
Optical interconnect txawv ntawm CXL li cas?
Lawv ua haujlwm ntawm cov txheej txheem sib txawv. Optical interconnect yog lub cev thauj khoom siv tshuab - nws txav cov khoom los ntawm point A mus rau point B siv lub teeb. CXL yog tus txheej txheem raws tu qauv uas txhais tau tias CPUs, nco, thiab accelerators sib txuas lus li cas. Kev sib txuas kho qhov muag tuaj yeem nqa tau CXL tsheb, tab sis CXL kuj tseem ua haujlwm dhau kev txuas hluav taws xob rau luv luv - mus txog kev sib txuas. Cov pab pawg feem ntau ntsuas ob qho tib si tib lub sijhawm vim tias kev sib cais tsim kev thov rau ob qho tib si kev cai zoo (CXL) thiab kev thauj mus los zoo (optics).
Cov tooj liab thiab kho qhov muag puas tuaj yeem sib koom ua ke hauv cov ntaub ntawv tsis sib xws?
Yog, thiab lawv feem ntau ua. Feem ntau qhov chaw sib cais siv tooj liab rau luv luv intra- khib kev sib txuas (hauv qab 3-5 meters) qhov twg nws tseem yooj yim dua thiab pheej yig dua, thiab fiber ntau optical rau khib-rau-rack, kab- mus rau - kab, thiab txoj kev ntev dua qhov twg tooj liab ncav cuag, kev txwv, thiab kev txwv. Qhov kev txiav txim siab yog qhov dav- nyob ntawm, tsis yog txhua yam - lossis - tsis muaj dab tsi.
Co- ntim optics yog dab tsi thiab kuv puas xav tau tam sim no?
Co-packaged optics (CPO) integrates optical engines ncaj qha mus rau tib lub pob xws li hloov ASIC los yog processor, tshem tawm qhov xav tau rau nyias pluggable transceivers thiab txo hwj chim noj thiab latency. NVIDIA thiab Broadcom tab tom siv CPO nyob rau tom ntej - tiam AI networking platforms. Feem ntau cov chaw zov me nyuam tsis xav tau CPO hnub no -pluggable optical modulesnyob twj ywm tus qauv - tab sis CPO yog nyob rau hauv daim ntawv qhia kev loj -scale AI infrastructure nyob rau hauv lub sij hawm 2026-2028.
Thaum twg kuv yuav tsum tsis txhob nrhiav kev sib cais nrog optical interconnect?
Yog tias koj cov khoom ua haujlwm tau zoo - sib npaug ntawm kev suav, nco, thiab khaws cia; koj scale yog me me (ob peb lub kaum os servers); thiab koj cov khoom siv tooj liab uas twb muaj lawm ua haujlwm rau koj tam sim no thiab nyob ze - lub sij hawm bandwidth xav tau yam tsis muaj strain - qhov nyuaj ntxiv ntawm kev sib cais thiab kev hloov kho qhov muag yuav tsis tsim nyog rau kev nqis peev. Pib nrog lub bottleneck, tsis yog buzzword.
Dab tsi ntawm fiber ntau siv nyob rau hauv cov ntaub ntawv chaw kho qhov muag interconnect?
Tib - hom fiber ntauyog siv rau ntev - nrug, siab dua - txuas ceev (feem ntau khib-rau- khib thiab tshaj).Multimode fiber ntaufeem ntau yog luv luv intra-cov ntaub ntawv- nruab nrab kev sib txuas mus txog ob peb puas meters. Qhov kev xaiv nyob ntawm qhov xav tau ncav cuag, nrawm, thiab tus nqi profile ntawm txhua qhov txuas.