Intel Cilk Plus -- Example #2 (multiplication table 16x16)

exmpl2.cpp

#include <stdio.h>
#include <cstdlib>
#include <cilk/cilk.h>
#include <iostream>

/* ex: set tabstop=8 softtabstop=4 expandtab: */

int main(int argc, char* argv[])
{
    int N = 16;
    int M = 16;
    int * arr  = (int *) _mm_malloc(N * M * sizeof(int), 64);
    cilk_for(int j = 0; j < N; j++) {
        arr[j] = j + 1;
    }
    cilk_for(int i = 1; i < M; i++) {
        int * a = &(arr[i * N]);
        a[0:N] = arr[0:N] * (i + 1);
    }
    int (* a)[N] = (int (*)[N]) arr;
    for(int i = 0; i < M; i++) {
        for(int j = 0; j < N; j++) {
            printf("%4d ", a[i][j]);
        }
        std::cout << std::endl;
    }
    _mm_free(a);
}