Kulempela sonto, linus torvalds (umdali we-Linux kernel) wabelana ngombono wakhe ku isethi yokufundisa I-Intel AVX-512 itholwe kwezinye zalezi zinqubo.
Kumazwana awashiyile, uTorvalds Ngiyakusho lokho «silindele ukuthi i-AVX-512 izokufa kabuhlungu".
Ubaba weLinux, Isethi yemiyalo ye-AVX-512 izuzisa kuphela imakethe ye-HPC futhi inezithiyo zangempela. Ngokusho kwakhe, i-Intel kufanele iyeke ukumosha izinsiza zayo kumasethi amasha wokufundisa ukugxila ezintweni ezibaluleke ngempela.
I-Intel chipmaker yase-US isanda kumemezela ukuthi amaprosesa ayo ase-Alder Lake angeke ahambisane nemiyalo ye-AVX-512.
I-AVX-512 iqoqo lezandiso ezingama-512-bit kumiyalo ye-SIMD (Izandiso ze-Vector ezithuthukisiwe) I-256-bit yemiyalo yokusetha i-x86 i-Intel yaphakamisa eminyakeni eyisikhombisa eyedlule. Ukusekelwa kwe-AVX-512 kuqale ku-Intel Xeon Phi x200 (Knights Landing) processor ngo-2016.
Kamuva I-AVX-512 idlule kokunye ukunikezwa okuvela ku-chipmaker, ikakhulukazi iSkylake-SP, iSkylake-X, iCannon Lake neCascade Lake. Njengamanje, ama-processor we-Intel Cooper Lake kanye ne-Ice Lake processors asekela ama-subsets athile we-AVX-512. I-Intel kunamahlebezi okuthi iqinisekisile ukuthi iTiger Lake izosebenzisa i-AVX-512 ngaphambi kokusanda kumemezela ukuthi i-Alder Lakes elandelayo ngeke iyisebenzise.
KwaTorvalds, konke lokhu akusizi ngalutho futhi uthemba ukuthi i-Intel izobuyela kuzisekelo futhi iqale kabusha inqubo yayo.
"Ngiyethemba ukuthi i-AVX-512 ifa kabuhlungu, nokuthi i-Intel iqala ukuxazulula izinkinga zangempela esikhundleni sokuzama ukwenza iziyalezo zomlingo bese idala izilinganiso ezingazethemba," esho?
Futhi ifuna ukuthi umenzi wezinto agxile kakhulu kukhodi ejwayelekile, okungeyona i-HPC (ukusebenza okuphezulu kwekhompyutha) noma elinye icala elikhethekile elingadingekile. Ngokwalokho okushiwo nguTorvalds, konke lokhu kusikhumbuza ngezinsuku lapho i-Intel yayilawula imakethe ye-chip, kepha ukusebenza kwayo kwe-FP kwakungu-zero.
“Sengikushilo phambilini futhi ngizobuye ngikusho: Emuva esikhathini esidlule se-x86, lapho i-Intel ihleka ibhange futhi ibulala yonke imincintiswano yabo, nakanjani wonke umuntu wenze kangcono kune-Intel uma kukhulunywa nge-FP Charges.
Ukusebenza kwe-Intel FP kwakungu-zero (uma kukhulunywa ngokuqhathaniswa), futhi lokho kwakungasho lutho ngoba, empeleni, akekho owayekhathalela ngaphandle kwamabhentshi. Okufanayo kuya nge-AVX-512 namuhla nasesikhathini esizayo. Yebo, singathola izinto ezibalulekile. Cha, lezi zinto aziyithengisi imishini iyonke, ”kusho yena.
ILinus Torvalds icabanga ukuthi i-AVX-512 inezinto ezingezansi zangempela nokuthi ngingathanda ukuthi isabelomali inkampani esabelwe ama-transistor sisetshenziselwe ezinye izinto ezifaneleke kakhulu, noma ngabe kuseyi-FP math (kwi-GPU, esikhundleni se-AVX-512).
Ngaphandle kwalokho ufuna ukuthi sikunikeze nje ama-cores amaningi (ngokusebenza okuhle okukodwa, kepha akukho doti efana ne-AVX-512) njengoba kwenza i-AMD. Ngakho-ke, khumbula ukuthi usanda kusuka kwiprosesa ye-Intel waya kwiprosesa ye-AMD Threadripper.
UTorvalds uthe ngale prosesa izivivinyo zakhe "allmodconfig" zishesha ngokuphindwe kathathu kunakuqala. Noma kuqhathaniswa ne-AVX-512, ithe ifuna ukuthi imingcele yayo yamandla ifinyelelwe ngekhodi ejwayelekile yenombolo, hhayi ngegciwane lamandla le-AVX-512 elicindezela imvamisa ephezulu (ngoba abantu bagcina ngokuyisebenzisela i-memcpy!) .
Ekugcineni, uLinus Torvalds uthe ucabanga ukuthi i-AVX-512 yinto engahambi kahle.
Yebo, yebo, ngiyacwasa. Angivumelani neze nezilinganiso ze-FP futhi ngiyabona ukuthi abanye abantu babakhathalele kakhulu. Ngicabanga nje ukuthi i-AVX-512 iyinto engalungile okufanele yenziwe. Ngenye yezinto engizithandayo. Lesi yisibonelo esihle salokho u-Intel akwenzile okungalungile, ngokwengxenye nje ngokwandisa ukuhlukaniswa kwemakethe, "kusho yena.
Uma ufuna ukwazi kabanzi ngayo, ungaxhumana isixhumanisi esilandelayo.