UGC NET CSE | December 2012 | Part 3 | Question: 2

Question

The efficiency (E)  and speed up (sp) for Multiprocessor with p processors satisfies:

• A. $ E \leq p \text{ and } s_p \leq p$
• B. $ E \leq 1 \text{ and } s_p \leq p$
• C. $ E \leq p \text{ and } s_p \leq 1$
• D. $ E \leq 1 \text{ and } s_p \leq 1$

Answer 1

Efficiency E can never be more than 1 or 100%  even 1 is just theortical

Speed up for multiprocessor Sp can never exceed ( P) no of processors

hence E≤1 and sp≤p E≤1 and sp≤p

so ans is B