Ngokusekelwe endimeni enikeziwe, uyini umehluko phakathi komthetho ka - Amdahl nomthetho wokuncipha kwenzuzo?
Context:Umthetho ka-Amdahl uvame ukuhlanganiswa nomthetho wokuncipha kwembuyiselo, kanti kuphela icala elikhethekile lokusebenzisa umthetho ka-Amdahl libonisa umthetho wokuncipha kwembuyiselo. Uma umuntu ekhetha kahle (ngokuya ngesivinini esifinyelelwe) ukuthi yini okufanele ithuthukiswe, khona-ke umuntu uzobona ukuthuthuka okuncishiswayo njengoba umuntu ethuthuka. Nokho, uma umuntu ekhetha ngendlela engeyona enhle, ngemva kokuthuthukisa ingxenye engeyona enhle kakhulu futhi aqhubekele ekuthuthukiseni ingxenye engcono kakhulu, umuntu angabona ukwanda kwembuyiselo. Qaphela ukuthi ngokuvamile kunengqondo ukuthuthukisa uhlelo ngendlela "engeyona enhle" ngalomqondo, uma kunikezwe ukuthi ezinye izinto ezithuthukisiwe zinzima kakhulu noma zidinga isikhathi sokuthuthukiswa eside kunezinye.  Umthetho ka-Amdahl umele umthetho wokuncipha kwenzuzo uma umuntu ecabanga ukuthi hlobo luni lwenzuzo umuntu ayithola ngokungeza ama-processor amaningi emshinini, uma umuntu esebenzisa ukubalwa kosayizi obekiwe ozosebenzisa wonke ama-processor atholakalayo ngomthamo wawo. Iprosesa ngalinye elisha elingezwa ohlelweni liyokwengeza amandla angasetshenziswa amancane kunalelo elaliphambi kwalo. Njalo uma kuphindwe kabili inani lamaprosesa isilinganiso sokusheshisa sizokwehla, njengoba inani eliphelele le-throughput libheke emkhawulweni we-1 / 1 - p.  Lokhu kuhlaziywa akuzinaki ezinye izingqinamba ezingaba khona ezifana nomkhawulokudonsa wememori kanye nomkhawulokudonsa we-I/O. Uma lezi zinsiza zinganciphisi ngenani labacubunguli, khona-ke ukumane wengeze abacubunguli kunikeza imbuyiselo ephansi kakhulu.  Umphumela womthetho ka-Amdahl wukuthi ukusheshisa izinhlelo zokusebenza zangempela ezinezingxenye zombili ezilandelanayo nezihambisanayo, kudingeka amasu wokubhala we-heterogeneous. Kunezinhlobo ezintsha zokusheshisa nokusetshenziswa kwamandla okususelwa ekubonisweni okujwayelekile kokungafani, okubizwa ngokuthi yi-normal form heterogeneity, esekela uhla olubanzi lwezakhiwo eziningi ze-multi-core heterogeneous. Lezi zindlela zokumodela zihloselwe ukubikezela ukusebenza kahle kwamandla wesistimu nobubanzi bokusebenza, futhi kusiza ucwaningo nentuthuko ezingeni le-hardware nesoftware yohlelo.
Umthetho wokuncipha kwenzuzo uyisimo esikhethekile sokusetshenziswa komthetho ka-Amdahl. Lesi siqephu sinikeza isibonelo sesimo lapho umthetho ka-Amdahl umelela khona umthetho wokuncipha kwenzuzo. Kulesi simo umuntu egijima computation fixed-sized ukuthi uzosebenzisa zonke processors etholakalayo ukuze umthamo wabo futhi ucabangela ukuthi hlobo luni ukubuya ingatholakala ngokungeza processors ngaphezulu emshinini. Ukusebenzisa umthetho ka-Amdahl kusitshela ukuthi iprosesa ngalinye elisha elingezwa ohlelweni liyokwengeza amandla angasebenziseki kangako kunelokuqala. Ngamanye amazwi, iprosesa ngalinye elisha linciphisa inzuzo.