Data center kutama kuenda kuDDR5 inogona kuve yakakosha pane kumwe kukwidziridzwa.Nekudaro, vanhu vazhinji vanongofunga zvisina kujeka kuti DDR5 ingori shanduko yekutsiva zvachose DDR4.Ma processor anoshanduka nekusvika kweDDR5, uye ivo vanozove nezvimwe zvitsvandangarirointerfaces, sezvazvaive zvakaita kuzvizvarwa zvakapfuura zveDRAM kusimudzira kubva kuSDRAM kuendaDDR4.
Nekudaro, DDR5 haingori shanduko yekuchinja, iri kushandura pfungwa yeprocessor memory system.Muchokwadi, shanduko kuDDR5 inogona kukwana kururamisa kukwidziridzwa kune inoenderana server papuratifomu.
Sei uchisarudza chimiro chitsva chendangariro?
Matambudziko ekombuta akawedzera kuomarara kubvira pakatanga makomputa, uye kukura kusingadzivisiki uku kwakafambisa shanduko muchimiro chenhamba huru yemaseva, inogara ichiwedzera ndangariro uye kugona kuchengetedza, uye yakakwirira processor wachi kumhanya uye yakakosha kuverenga, asiwo kutyaira shanduko yekuvaka. , kusanganisira ichangoburwa kutorwa kweakapatsanurwa uye akashandiswa maitiro eAI.
Vamwe vangafunga kuti izvi zvese zviri kuitika tandem nekuti nhamba dzese dziri kukwira.Nekudaro, nepo huwandu hwema processor cores hwawedzera, DDR bandwidth haina kuramba ichimhanya, saka bandwidth pamusimboti yanga ichidzikira.
Sezvo seti yedata yave kuwedzera, kunyanya yeHPC, mitambo, vhidhiyo kukodha, muchina kudzidza kufunga, hombe data data, uye dhatabhesi, kunyangwe bandwidth yekuchinjisa ndangariro inogona kuvandudzwa nekuwedzera mamwe ndangariro nzira kuCPU, Asi izvi zvinopedza simba rakawanda. .Iyo processor pini kuverenga zvakare inodzikamisa kusimba kweiyi nzira, uye nhamba yematanho haigone kuwedzera zvachose.
Mamwe maapplication, kunyanya akakwira-core subsystems akadai seGPU uye nyanzvi dzeAI processors, shandisa rudzi rweyepamusoro-bandwidth memory (HBM).Iyo tekinoroji inomhanyisa data kubva kuDRAM machipisi akaturikidzana kuenda kune processor kuburikidza ne1024-bit ndangariro nzira, zvichiita kuti ive mhinduro yakanaka yekurangarira-inokura maapplication seAI.Mune aya maapplication, processor uye ndangariro dzinofanirwa kunge dziri padyo sezvinobvira kuti ipe kukurumidza kutamiswa.Nekudaro, zvakare inodhura zvakanyanya, uye machipi haakwanise kukwana pane inotsiviwa / inokwidziridzwa module.
Uye DDR5 ndangariro, iyo yakatanga kufambiswa zvakanyanya gore rino, yakagadzirirwa kuvandudza chiteshi bandwidth pakati pe processor uye ndangariro, ichiri kutsigira upgradeability.
Bandwidth uye latency
Mwero wekuchinjisa weDDR5 unokurumidza kupfuura wechero chizvarwa chekare cheDDR, kutaura zvazviri, zvichienzaniswa neDDR4, chiyero chekuendesa cheDDR5 chinodarika kaviri.DDR5 inotangisawo mamwe magadzirirwo ezvivakwa kuti agone kuita pane aya mareti ekutamisa pamusoro pezviwanikwa zviri nyore uye ichavandudza inocherechedzwa bhazi re data.
Pamusoro pezvo, kureba kwekuputika kwakapetwa kaviri kubva kuBL8 kuenda kuBL16, zvichibvumira moduli yega yega kuve neaviri akazvimiririra madiki-channel uye zvakanyanya kupeta kaviri nzira dziripo muhurongwa.Kwete chete iwe unowana yakakwirira yekumhanyisa kumhanya, asi iwe zvakare unowana yakavakirwa ndangariro chiteshi inodarika DDR4 kunyangwe isina yakakwirira mitengo yekufambisa.
Memory-intensive processs ichaona kukwidziridzwa kukuru kubva pakuchinja kuenda kuDDR5, uye mazhinji emazuva ano-data-intensive workloads, kunyanya AI, dhatabhesi, uye online transaction process (OLTP), inokodzera iyi tsananguro.
Mwero wekutapurirana wakakoshawo.Ikozvino kumhanya kweDDR5 memory ndeye 4800 ~ 6400MT/s.Sezvo tekinoroji ichikura, mwero wekutapurirana unotarisirwa kuve wakakwira.
Simba rekushandisa
DDR5 inoshandisa yakaderera voltage pane DDR4, kureva 1.1V pachinzvimbo che1.2V.Nepo mutsauko we8% ungasanzwika sewakawanda, mutsauko unobuda pachena kana wakapetwa kuti uverenge huwandu hwemashandisirwo emagetsi, kureva 1.1²/1.2² = 85%, izvo zvinoshandura 15% kuchengetedza pamabhiri emagetsi.
Shanduko dzekuvaka dzakaunzwa neDDR5 inokwenenzvera bandwidth uye yakakwirira yekufambisa mitengo, zvisinei, nhamba idzi dzakaoma kuverengera pasina kuyera chaiyo nharaunda yekushandiswa umo tekinoroji inoshandiswa.Asi zvakare, nekuda kweiyo yakagadziridzwa dhizaini uye yakakwirira yekufambisa mitengo, mushandisi wekupedzisira achaona kuvandudzwa kwesimba pachidimbu che data.
Uye zvakare, iyo DIMM module inogona zvakare kugadzirisa iyo voltage yega, iyo inogona kuderedza kudiwa kwekugadziriswa kwesimba rekupa mamaboard, nekudaro ichipa mamwe masimba ekuchengetedza simba.
Kune nzvimbo dze data, ingani simba rinoshandiswa nevhavha uye kuti ingani mari yekutonhodza inonetsa, uye kana zvinhu izvi zvichitariswa, DDR5 seyakawanda-inoshanda simba module inogona zvirokwazvo kuva chikonzero chekusimudzira.
Kugadzirisa kukanganisa
DDR5 inosanganisirawo pa-chip kukanganisa kururamisa, uye sezvo DRAM maitiro ari kuramba achidzikira, vashandisi vazhinji vane hanya nekuwedzera imwe-bit yekukanganisa mwero uye yakazara data kuperera.
Kune maseva maapplication, pa-chip ECC inogadzirisa zvikanganiso-zvishoma panguva yekuverenga mirairo isati yaburitsa data kubva kuDDR5.Izvi zvinoremedza imwe yeECC mutoro kubva kuhurongwa hwekugadzirisa algorithm kuenda kuDRAM kudzikisa mutoro pahurongwa.
DDR5 inounzawo kukanganisa kutarisa uye sanitization, uye kana ikagoneswa, DRAM zvishandiso zvinoverenga data remukati uye kunyora kumashure kwakagadziriswa data.
Pfupisa
Nepo iyo DRAM interface kazhinji isiri iyo yekutanga iyo data data inotariswa kana ichiita kusimudzira, DDR5 inofanirwa kunyatsotariswa, sezvo tekinoroji inovimbisa kuchengetedza simba uku ichivandudza zvakanyanya mashandiro.
DDR5 tekinoroji inogonesa inobatsira vatori vekutanga kutama zvine nyasha kuenda kune inoumbwa, inoparadza data nzvimbo yeramangwana.IT uye vatungamiriri vebhizinesi vanofanirwa kuongorora DDR5 uye kuona kuti uye riini votama kubva kuDDR4 kuenda kuDDR5 kuti vapedze hurongwa hwavo hwekushandura data.
Nguva yekutumira: Zvita-15-2022
