CSE 331
Computer Organizations
Homework 1
1. Assume that, today, a wafer containing 120 processor dies costs 10000$. The yield decreases by 10% at each year while the wafer cost also decreases by 20% at each year. Then, what will be the cost of a single chip manufacturing after 4 years? Show your computations. Edit: Assume, today, there is a yield of 80%.
2. A compiler designer wants to compare the performance of two different compilers he designed. The compilers are generating MIPS machine code from a C program. He compiles the same C program using the two compilers.
a. According to the tables below, find which compiler is better and by how many times it is better than the other?
R-type (x106)
I-Type (x106)
J-Type (x106)
Compiler A
50
10
2
Compiler B
80
5
1
R-type
I-Type
J-Type
Required Cycles
2
4
3
b. What must be the clock speed of the processor so that the program compiled with the better compiler executes in 100ms?
