Kulengezedwa kwa Cerebras processor ― Cerebras Wafer Scale Engine (WSE) kapena Cerebras wafer scale engine ― monga gawo la msonkhano wapachaka wa Hot Chips 31. Kuyang'ana pa chilombo cha silicon ichi, chomwe chiri chodabwitsa sichingakhale chakuti iwo angakhoze kuchimasula mu thupi. Kulimba mtima kwa kapangidwe kake ndi ntchito ya opanga omwe adayika pachiwopsezo chopanga kristalo wokhala ndi malo a 46 masikweya millimeters ndi mbali za 225 cm ndizodabwitsa. Zimatengera mtanda wonse wa 21,5-mm kupanga purosesa imodzi. Ndi kulakwitsa pang'ono, chiwerengero cha chilema ndi 300%, ndipo mtengo wa nkhaniyi ndi wovuta kuganiza.
Cerebras WSE imapangidwa ndi TSMC. Njira zamakono: 16 nm FinFET. Wopanga waku Taiwan uyu akuyeneranso kukhala chipilala chotulutsa Cerebras. Kupanga chip choterocho kunkafuna luso lapamwamba kwambiri ndi kuthetsa mavuto ambiri, koma kunali koyenera, opanga akutsimikizira. Chip cha Cerebras kwenikweni ndi kompyuta yapamwamba kwambiri pa chip yokhala ndi mphamvu zodabwitsa, kugwiritsa ntchito mphamvu pang'ono komanso kufanana kosangalatsa. Iyi ndiye njira yabwino yophunzirira makina yomwe ingalole ofufuza kuti ayambe kuthetsa mavuto ovuta kwambiri.
Imfa iliyonse ya Cerebras WSE imakhala ndi ma transistors 1,2 thililiyoni, opangidwa kukhala 400 AI-optimized compute cores ndi 000 GB ya SRAM yogawidwa kwanuko. Zonsezi zimalumikizidwa ndi netiweki ya mauna yokhala ndi ma 18 petabits pamphindikati. Memory bandwidth imafikira 100 PB / s. Ulamuliro wa kukumbukira ndi gawo limodzi. Palibe chikumbutso cha cache, palibe kuphatikizika, komanso kuchedwa kochepa. Ndi kamangidwe koyenera kufulumizitsa ntchito zokhudzana ndi AI. Manambala amaliseche: poyerekeza ndi zojambula zamakono zamakono, Cerebras chip imapereka nthawi 9 zambiri pa-chip memory ndi 3000 nthawi zambiri zotumizira kukumbukira.
Cerebras computing cores - SLAC (Sparse Linear Algebra Cores) - ndi yosinthika kwathunthu ndipo imatha kukonzedwa kuti igwire ntchito ndi neural network iliyonse. Kuphatikiza apo, kamangidwe ka kernel kumasefa zomwe zimayimiridwa ndi zero. Izi zimamasula zida zamakompyuta kuchokera pakufunika kochulutsa popanda ntchito ndi ziro, zomwe pakuchulukira kwa data kumatanthawuza kuwerengera mwachangu komanso kugwiritsa ntchito mphamvu kwambiri. Chifukwa chake, purosesa ya Cerebras imakhala yokwanira mazana kapena masauzande nthawi zambiri pakuphunzira makina potengera malo a chip ndikugwiritsa ntchito kuposa mayankho apano a AI ndi kuphunzira makina.
Kupanga chip cha kukula kofanana mayankho ambiri apadera. Anafunikira kulongedza m'bokosi pafupifupi ndi dzanja. Panali zovuta popereka mphamvu ku kristalo ndikuzizizira. Kuchotsa kutentha kunakhala kotheka kokha ndi madzi ndipo kokha ndi bungwe la zonal supply ndi kufalikira kozungulira. Komabe, mavuto onse anathetsedwa ndipo chip chinatuluka chikugwira ntchito. Zidzakhala zosangalatsa kuphunzira za momwe angagwiritsire ntchito.
Source: 3dnews.ru