High Performance Programming for Soft Computing

Introduction to Novel Microprocessor ArchitecturesIntroduction to Novel Microprocessor Architectures 63

Table 2.3 Characteristics of two different computer systems.

Characteristics A B

Clock cycle time (ns) 1.0 2.0

CPI 4.95 4.0

We will evaluate them using two implements of the same ISA. Applying

(2.7.8) we have:

For computer A:

For computer B:

Now, we need to calculate the performance ratio using (2.7.3),

Therefore, computer A is 1.61 times faster than computer B.

2.7.2 Analyzing the Performance in Multicore/Multiprocessor

Systems

The Amdahl’s law was proposed four decades ago by Gene Amdahl. It was

a mathematical formulation focused to know the expected ...