Exam 13: Parallel Programming

SPMD (single program multiple data)programming does not require process synchronization.

Distributed-memory systems suffer from ____ problems.

A ____ executes a particular sequence of instructions independently,while sharing all memory and other resources with its parent program.

In the early days of computing,jobs were executed in batch fashion.

Concurrent programming emphasizes the fact that parallel constructs express only the potential for parallelism.

Semaphore operations must be executed ____.

In Java,the reserved word ____ is used to establish mutual exclusion for threads.

A lightweight process shares its resources with the program it came from.

____ allows many processes to share a single processor,and appear to be executing simultaneously.

When a process waiting at a semaphore is constantly pre-empted,____ occurs.

Compiler options allow explicit indication of areas where parallelism is called for.

In Ada,a process is referred to as a job.

The idea of parallel processing has only been around since the 1980s.

Another name for the bounded buffer problem is the producer-consumer problem.

Threads can be an efficient mechanism for coarse-grained parallelism in the shared memory model.

Many processes sharing a single processor is an example of true parallelism.

A process is ____ when it is waiting for an activity to finish or an event to occur.

When multiple processes share a single processor,it is a form of ____.

A ____ system consists of stand-alone processors connected together by high-speed links.

Variable annotations are used to provide additional details about the data type of a variable.