Algorith Performance

php.php

<?php

$n = 2048;

$A = [[]];
$B = [[]];
$C = [[]];

for ($i=0; $i < $n ; $i++) { 
    for ($j=0; $j < $n ; $j++){
        $A[$i][$j] = rand();
        $B[$i][$j] = rand();
        $C[$i][$j] = rand();
    }
}

$start = microtime(true);

for ($i=0; $i < $n; $i++) { 
    for ($j=0; $j < $n; $j++) { 
        for ($k=0; $k < $n; $k++) { 
            $C[$i][$j] += $A[$i][$k] * $B[$k][$j];
        }
    }
}

$end = microtime(true);
echo "Elapsed time in seconds ".$end-$start;

python.py

import random
import time

n = 2048

#populate the matrices with random values between 0.0 and 1.0
A = [[random.random() for row in range(n)] for col in range(n)]
B = [[random.random() for row in range(n)] for col in range(n)]
C = [[0 for row in range(n)] for col in range(n)]

start = time.time()
#matrix multiplication
for i in range(n):
    for j in range(n):
        for k in range(n):
            C[i][j] += A[i][k] * B[k][j]

end = time.time()
print("Elapsed time in seconds {0}" .format (end-start))