上节回顾 历些毛子代枚大多 XIDIAN UNIVERSITY →并行计算机性能测评 ▣Amdahl定律 S= Ws+Wp f+(1-f) p Ws Wp/p f+1-T 1+f0-可1+fx0-画 Amdahl's Law 20 18 Parallel portion 16 50% 75% 0% 95 12 10 9州名目晟月百是量眉昌胃圆 Number of processors上节回顾 并行计算机性能测评  Amdahl 定律 𝑆 = 𝑊𝑠 + 𝑊𝑝 𝑊𝑠 + 𝑊𝑝Τ𝑝 = 𝑓 + (1 − 𝑓ሻ 𝑓 + 1 − 𝑓 𝑝 = 𝑝 1 + 𝑓(𝑝 − 1ሻ = 1 1 + 𝑓 × (𝑝 − 1ሻ 𝑝