Inkampani ye-SiFive, esekwe ngabadali be-RISC-V ye-architecture ye-architecture kwaye ngexesha elinye ilungiselela iprototype yokuqala ye-RISC-V-based processor, yazisa i-RISC-V entsha ye-CPU engundoqo kumgca we-SiFive Performance, eyi-50. I-% ngokukhawuleza kuneyona nto iphambili ye-P550 yangaphambili kwaye iphezulu ekusebenzeni kwe-ARM Cortex-A78, eyona processor inamandla esekwe kuyilo lwe-ARM. Ii-SoCs ezisekwe kwisiseko esitsha zijolise ikakhulu kwiinkqubo zeseva kunye neendawo zokusebenza, kodwa kuyenzeka kwakhona ukwenza iinguqulelo ezikhutshiweyo zezixhobo eziphathwayo kunye nezifakwe ngaphakathi.
Kuxelwa ukuba, xa kuthelekiswa ne-P550, i-SiFive core processor entsha iqulethe i-16 MB ye-L3 cache endaweni ye-4 MB, inokudibanisa ukuya kuthi ga kwi-16 cores kwi-chip enye endaweni yesi-4, isebenze ngokuphindaphindiweyo ukuya kwi-3.5 GHz endaweni I-2.4 GHz, ixhasa imemori ye-DDR5 kunye ne-PCI-Express 5.0 yebhasi. Uyilo oluqhelekileyo lwesiseko esitsha sisondele kwi-P550 kwaye ikwimodyuli ngokwendalo, ivumela iibhloko ezongezelelweyo ezinee-accelerator ezikhethekileyo okanye ii-GPU ukuba zongezwe kwi-SoC. Iinkcukacha zicwangciselwe ukupapashwa ngoDisemba, kwaye idatha ye-RTL elungele i-FPGA iya kupapashwa kulo nyaka uzayo.
I-RISC-V ibonelela ngenkqubo yokufundisa ngomatshini evulekileyo neguquguqukayo ekuvumela ukuba wenze ii-SoCs ezivuleleke ngokupheleleyo kunye nee-microprocessors zezicelo ezingafunekiyo, ngaphandle kokufuna umrhumo okanye ukubeka iimeko zokusetyenziswa. Okwangoku, ngokusekelwe kwinkcazo ye-RISC-V, iinguqu ze-2.0 ze-microprocessor cores, iiplatifomu ze-111, ii-SoCs ze-31 kunye neebhodi ze-12 esele zenziwe ziphuhliswa ziinkampani ezahlukeneyo kunye noluntu phantsi kweelayisensi ezahlukeneyo zamahhala (BSD, MIT, Apache 12).
umthombo: opennet.ru