Two goals for concurrency

[cl4cnam]

Concurrency might be made to improve speed of the execution (This is rather called parallelism) or to improve readability of programs.
These are two very different goals.

When I search to improve speed of the execution, I might want to transform (pseudo-code):

wordIn = readOneWordFromFile(inputFile)
wordOut = wordIn
writeOneWordToFile(outputFile, wordOut)

wordIn = readOneWordFromFile(inputFile)
wordOut = wordIn
writeOneWordToFile(outputFile, wordOut)

into:

wordIn = readOneWordFromFile(inputFile)
wordOut = wordIn
parallel_all:
	writeOneWordToFile(outputFile, wordOut)
	wordIn = readOneWordFromFile(inputFile)
wordOut = wordIn
writeOneWordToFile(outputFile, wordOut)

but not when I search to improve readability of the program.

Conversely, when I search to improve readability of the program, I might want to transform (pseudo-code):

listenerClick(launchExercice_button): labelLaunch
	removeListenerClick labelLaunch
	setTimeout 30s:
		removeListenerClick labelTry
		print "Good job! See you soon!"
	numberOfClick = 0
	listenerClick(tryTripleClick_zone): labelTry
		if numberOfClick == 0:
			setTimeout 2s: labelTimeout
				if numberOfClick < 3
					numberOfClick = 0
					print "Non-triple click"
		numberOfClick += 1
		if numberOfClick == 3:
			numberOfClick = 0
			print "Triple click"
			clearTimeout(labelTimeout)

into:

await click launchExercice_button
until 30s:
	while true:
		await click tryTripleClick_zone
		parallel_some:
			sequence:
				await click tryTripleClick_zone
				await click tryTripleClick_zone
				print "Triple click"
			sequence:
				await 2s
				print "Non-triple click"
print "Good job! See you soon!"

but I don't get any improvement of speed of execution.

Here is the last comparison in real code (javascript vs funcSug):

let numberOfClick
function launch() {
	document.getElementById('launch').removeEventListener('click', launch)
	setTimeout(
		O=>{
			document.getElementById('clickZone').removeEventListener('click', clickZone)
			
			console.log("Good job! See you soon!")
		},
		30000
	)
	numberOfClick = 0
	document.getElementById('clickZone').addEventListener('click', clickZone)
}

let timeoutID
function clickZone() {
	if (numberOfClick == 0) {
		timeoutID = setTimeout(
			O=>{
				if (numberOfClick < 3) {
					numberOfClick = 0
					console.log("Non-triple click")
				}
			},
			2000
		)
	}
	numberOfClick += 1
	if (numberOfClick == 3) {
		numberOfClick = 0
		console.log("Triple click")
		clearTimeout(timeoutID)
	}
}
document.getElementById('launch').addEventListener('click', launch)

vs

.awaitClickBeep '#launch'
{par_race
	.waitSeconds 30
	{while true
		.awaitClickBeep '#clickZone'
		{par_race
			{seq
				.awaitClickBeep '#clickZone'
				.awaitClickBeep '#clickZone'
				.print "Triple click"
			}
			{seq
				.waitSeconds 2
				.print "Non-triple click"
			}
		}
	}
}
.print "Good job! See you soon!"