70 lines
1.9 KiB
PHP
70 lines
1.9 KiB
PHP
<?php
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declare(strict_types=1);
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namespace CondorcetPHP\Condorcet\Benchmarks;
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use CondorcetPHP\Condorcet\Algo\Methods\RankedPairs\RankedPairs_Core;
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use CondorcetPHP\Condorcet\Election;
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use PhpBench\Attributes as Bench;
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ini_set('memory_limit', '51200M');
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class PairwiseNumberOfCandidatesBench
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{
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public array $numberOfCandidates = [3, 5, 7, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100];
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public array $numberOfVotes = [10, 100, 1000, 10000];
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protected Election $election;
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public function __construct()
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{
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RankedPairs_Core::$MaxCandidates = null;
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}
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protected function buildElection(int $numberOfCandidates, int $numberOfVotes): void
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{
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$randomizer = new \Random\Randomizer(new \Random\Engine\Xoshiro256StarStar('CondorcetReproductibleRandomSeed'));
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$this->election = $election = new Election;
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$this->election->setNumberOfSeats((int) ($numberOfCandidates / 3));
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$candidates = [];
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for ($i=0; $i < $numberOfCandidates; $i++) {
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$candidates[] = $election->addCandidate();
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}
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for ($i = 0; $i < $numberOfVotes; $i++) {
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$oneVote = $randomizer->shuffleArray($candidates);
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$election->addVote($oneVote);
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}
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}
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public function provideNumberOfCandidates(): \Generator
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{
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foreach ($this->numberOfCandidates as $n) {
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yield $n => ['numberOfCandidates' => $n];
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}
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}
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public function provideNumberOfVotes(): \Generator
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{
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foreach ($this->numberOfVotes as $n) {
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yield $n => ['numberOfVotes' => $n];
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}
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}
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#[Bench\OutputTimeUnit('seconds')]
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#[Bench\ParamProviders(['provideNumberOfCandidates', 'provideNumberOfVotes'])]
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#[Bench\Warmup(0)]
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#[Bench\Iterations(1)]
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#[Bench\Revs(1)]
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public function benchByCandidates(array $params): void
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{
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$this->buildElection($params['numberOfCandidates'], $params['numberOfVotes']);
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}
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}
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