fundamental mechanisms

IPC = Inter-Process Communication

Normally, the OS restricts a process to its own memory

managed by the OS

message passing Allow processes to communicate without sharing memory

A thread is a ... sequence of execution

A thread is the basic unit of CPU utilization

A traditional process has a …thread of control

A single-threaded process can perform

A multi-threaded process can perform multiple tasks at a time

A thread comprises a thread ID, a PC, a register set, and a stack

Process threads share

Thread creation has less overhead than process creation

Threads can run in parallel on a multiprocessor machine

Threads share the resources of the process

A blocked thread doesn’t block the process

Examine data to find dependencies between tasks

Divide data between tasks that run on separate cores

divide program into tasks that can run in parallel