Linus Torvalds Akagxothi magama kwaye uhlala ethetha ngokuvakalayo nangokucacileyo malunga noko acinga ngezinye zezinto. Ngeli xesha ugqibe kwelokuba athethe into ayicingayo ngeseti ye-Intel AVX-512. Iseti yomyalelo eyongezwa ngaphezulu kwesiseko x86-64 ISA ukubonelela ngemiyalelo yokubala eyilelwe ngokukodwa iimeko ze-HPC.
Ngokomgaqo le miyalelo ifanele ukuba ilungile, eneneni yongeza ukusebenza kweentlobo ezithile zezicelo zokubala ezisetyenziswa kwimeko ye-HPC. Kodwa iLinus Torvalds ayithandi ukuba le seti yemiyalelo ikwabandakanyiwe kwi-Intel desktop processor. Ngapha koko, kubonakala ngathi i-Intel iphinde yaqwalasela kwakhona kwaye kubonakala ngathi ikamva labo IAlder Lake ayizukufumana inkxaso ye-AVX-512.
ILinus Torvalds inoluvo lokuba kufuneka bagxile ngakumbi kwezona zinto zibalulekileyo kolu hlobo lwecandelo kunokuba bachithe izixhobo kwizibonelelo zemiyalelo emitsha njenge-AVX-512 engenantsingiselo. Ngaphandle kweNtengiso yeHPC (Ukusebenza ngokuPhezulu kweKhompyutha).
Ukusukela ukuba i-AVX-512 yaqala ukubonakala kwi- Xeon Phi x200 (Knights Landing), emva koko iya kudlulela eSkylake-SP, eSkylake-X, eCannon Lake naseCascade Lake. Emva koko, ezinye zifana neChibi leCoper kunye neLake Lake zikwaxhasa imixholo ethile yemiyalelo evela kwi-AVX-512 repertoire.
La uluvo oluthunyelwe nguPhoronix weLinus Torvalds ayinankcitho:
Ndiyathemba ukuba i-AVX512 iyafa kabuhlungu, kwaye i-Intel iqala ukulungisa iingxaki zokwenyani endaweni yokuzama ukwenza imiyalelo yemilingo kwaye emva koko yenza iibenchmark ezinokubonakala zilungile kuzo.
Ndiyathemba ukuba i-Intel ibuyele kwiziseko-yenza ukuba inkqubo yakho isebenze kwakhona kwaye ijolise ngakumbi kwikhowudi eqhelekileyo engeyiyo i-HPC okanye enye imeko ekhethekileyo yokungahoywa.
Sele ndikuthethile oku, kwaye ndiza kuphinda ndiyitsho: nge-x86, xa i-Intel ibulala lonke ukhuphiswano, wonke umntu wenze ngcono kune-Intel kwi-FP (Float-Point) imithwalo. Ukusebenza kwe-Intel's FP kuyancanca (ngokuthethileyo), kwaye ayinamsebenzi iota enye.
Kungenxa yokuba akukho mntu ukhathalele ngaphandle kweebhentshi.
Kuyafana kakhulu ne-AVX512 ngoku, nakwixesha elizayo. Ewe unokufumana izinto ezibalulekileyo kuwe. Hayi, ezo zinto azithengisi oomatshini kumfanekiso omkhulu.
Kwaye i-AVX512 inezona zinto ziphantsi. Ndingathanda ukubona uhlahlo-lwabiwo mali lwe-transistor lusetyenziswa kwezinye izinto ezifanelekileyo ngakumbi. Nokuba isezibalo ze-FP (kwi-GPU, endaweni ye-AVX512). Okanye ndinike nje ii-cores ezingaphezulu (ngokusebenza kakuhle ngentambo enye, kodwa ngaphandle kwenkunkuma efana ne-AVX512) njengoko yenzayo i-AMD. (Khumbula ukuba ngoku iLinus isebenzisa i-AMD Threadripper kwi-PC yayo)
Ndifuna ukuba umda wam wamandla ufikelelwe ngekhowudi ye-integer eqhelekileyo, hayi ngentsholongwane yamandla e-AVX512 esusa ubuninzi bexesha. Kuba la junk ingenamsebenzi ithatha indawo kwaye isuse ii-cores.
Ukuba ndiyaqonda. Ndizifundisisa ngokupheleleyo ii-benchmark ze-FP kwaye ndiyaqonda ukuba abanye abantu bayakhathala. Ndicinga nje ukuba i-AVX512 yinto engeyiyo ukuyenza. Kukuzonwabisa kwam. Ngumzekelo ophambili wento u-Intel ayenzileyo, ngokuyinxalenye ngokwandisa ukwahlulwa kwemakethi.
[…] Yenza i-FPU elungileyo ngokwaneleyo, kwaye abantu baya konwaba. I-AVX2 ingaphezulu ngokwaneleyo.
Ewe, ndiyavuma noLinus. I-Intel ihlala ibonisa into elungileyo. Mhlawumbi kungenxa yokuba ixhomekeke ngakumbi kwintengiso. Kodwa ukuba unomdla wokwenyani, ngesele ubandakanye itekhnoloji ye-nano, enee-cores ezingakumbi. Ngapha koko, konke oku kuyakwenza ukuba iinkampani ezintsha zivele zenze into i-Intel engafuni kuyenza.
Ii-Intel's kunye neeseti zazo zokuyalela ayisiyi-Intel-igent kakhulu.