Bug report

Version 2.0.2
https://github.com/phpstan/phpstan/releases/tag/1.12.11
phpstan/phpstan-src#3632
#12026

Issue with detection number of CPU cores still persist.
Tested with CPU Intel i9-13900H (14 cores / 20 threads).

Downloaded phpstan 2.0.0 via composer

composer require phpstan/phpstan 2.0.2

Ran analyse

php "vendor/bin/phpstan" analyse --configuration "bin/phpstan.neon" -vvv --ansi

Config neon

includes:
	- %currentWorkingDirectory%/.phpstan.neon

parameters:
	scanDirectories:
		- %currentWorkingDirectory%/App
		- %currentWorkingDirectory%/vendor
		- %currentWorkingDirectory%/libs

	paths:
		- %currentWorkingDirectory%/App

	tmpDir:
		%currentWorkingDirectory%/temp/phpstan

	level: 5

	editorUrlTitle: '%%relFile%%:%%line%%'

Result

Parallel processing scheduler:
# of detected CPU core:  1
....
....

So, i unpacked PHAR and removed try/catch from src\Process\CpuCoreCounter.php.
Then i tried to run standalone CpuCoreCounter in test index.php file:

<?php

use PHPStan\Process\CpuCoreCounter;

require_once 'vendor/autoload.php';

$counter = new CpuCoreCounter();
echo $counter->getNumberOfCpuCores();
exit;

and got this error:

Fatal error: Uncaught _PHPStan_c684505c9\Fidry\CpuCoreCounter\NumberOfCpuCoreNotFound: Could not find the number of CPU cores available. in D:\WebDevelopment\Localhost\phpstan\vendor\fidry\cpu-core-counter\src\NumberOfCpuCoreNotFound.php:19

This issue was fixed in phpstan-src 2.0.x. I checked it again and phpstan-src 2.0.x detect CPU cores correctly. Issue should be with release phpstan 2.0.2.

Code snippet that reproduces the problem

No response

Expected output

Expected correct detection of CPU cores :-)

Did PHPStan help you today? Did it make you happy in any way?

All the time :-). I recomended phpstan all developers who i knows.