Learning Functional Programming in Go

FP using Go's concurrency constructs

Given the expression result := function1() + function2(), parallelization means that we can run each function on a different CPU core and the total time will be approximately the time it takes for the most expensive function to return its result. Consider the following explanation for parallelization and concurrency:

• Parallelization: Executing multiple functions at the same time (in different CPU cores)
• Concurrency: Breaking a program into pieces that can be executed independently

I recommend that you check out the video Concurrency is Not Parallelism, by Rob Pike at https://player.vimeo.com/video/49718712. This is where he explains concurrency as a decomposition of a complex problem into smaller components, ...