Chapter 7: Parallel Processors

Question 1

speed-up achieved on a multiprocessor without increasing the size of the problem

Answer 1

strong scaling

Question 2

speed up achieved on a multiprocessor while increasing the size of the problem proportionally to the increase in the number of processors

Answer 2

weak scaling

Question 3

a uniprocessor

Answer 3

SISD (single instruction stream, single data stream)

Question 4

a multiprocessor

Answer 4

MIMD (multiple instruction streams, multiple data streams)

Question 5

The conventional MIMD programming model, where a single program runs across all processors

Answer 5

SPMD(single program, multiple data streams)

Question 6

the same instruction is applied to many data streams, as in a vector processor

Answer 6

SIMD (single instruction stream, multiple data streams)

Question 7

parallelism achieved by performing the same operation on independent data

Answer 7

data-level parallelism

Question 8

one or more vector functional units and a portion of the vector register file.

Answer 8

vector lane

Question 9

a version of multithreading that lowers the cost of multithreading by utilizing the resources needed for multiple issue, dynamically scheduled microarchitecture

Answer 9

Simultaneous multithreading (SMT)