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#define _BSD_SOURCE
 
#include <omp.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/time.h>
 
#define LENGHT 144
 
//omp_set_num_threads(64);
void numero1(int* arr, int n);
void numero2(int* arr, int n);
void printArray(int* arr);
 
void main(int argc, char *argv[])
{
  if(argc == 4) {
    int p = atoi(argv[1]);
    int v = atoi(argv[2]);
    int n = atoi(argv[3]);
    // read p, v, n
    int i;
    int arr[LENGHT];
    struct timeval begin, end;
    for(i = 0; i < LENGHT; i++) {
      arr[i] = v;
      if(p == 2) {
        omp_init_lock(&(arr[i]));
      }
    }
    gettimeofday(&begin, NULL);
    if(p == 1) {
        numero1(arr, n);
    } else if(p == 2) {
        numero2(arr, n);
    }
    gettimeofday(&end, NULL);
    double elapsed = (end.tv_sec - begin.tv_sec) + ((end.tv_usec - begin.tv_usec)/1000000.0);
    printf("Time elapsed: %f\n",elapsed);
  }
}
 
void numero1(int* arr, int n) {
  int i, k;
  #pragma omp parallel num_threads(48)
  {    
    k = omp_get_thread_num();
    #pragma omp for
    for (i = 1; i < n; i++){
      arr[k] = arr[k] + (k / 8) + (k % 8);
      k = k + 48;
      arr[k] = arr[k] + (k / 8) + (k % 8);
      k = k + 48;
      arr[k] = arr[k] + (k / 8) + (k % 8);
      usleep(50000);
 
    }
  }
}
 
void numero2(int* arr, int n) {
  int i, j, k;
  #pragma omp parallel num_threads(48)
  {
    k = omp_get_thread_num();
    #pragma omp for
    for (i = 1; i < n; i++) {
      j = k % 12;
      k += 96;
      omp_set_lock(&(arr[k]));    
      usleep(25000);
      if(j < 11) {
        omp_set_lock(&(arr[k + 1]));
        // Lock jusqua temps j == 1 execute
        arr[k] = arr[k] + arr[k + 1];
        omp_unset_lock(&(arr[k + 1]));
        k = k - 48;
        omp_set_lock(&(arr[k+ 1]));
        // Lock jusqua temps j == 1 execute
        arr[k] = arr[k] + arr[k + 1];
        omp_unset_lock(&(arr[k + 1]));
        k = k - 48;
        omp_set_lock(&(arr[k + 1]));
        // Lock jusqua temps j == 1 execute
        arr[k] = arr[k] + arr[k + 1];
        omp_unset_lock(&(arr[k + 1]));
      } else {
        arr[k] = arr[k] + (k / 8);
      }    
      omp_unset_lock(&(arr[k]));
      usleep(25000);
    }
  }
}
 
void printArray(int* arr) {
    int i;
    for (i = 0; i < LENGHT; i++) {
        int val = arr[i];
        printf("%d ", val);
        if(((i + 1) % 12) == 0) {
            printf("\n");
        }
    }
}
 

In file included from /usr/include/stdio.h:27:0,
                 from prog.c:4:
/usr/include/features.h:148:3: warning: #warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" [-Wcpp]
 # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
   ^~~~~~~
prog.c:16:6: warning: return type of ‘main’ is not ‘int’ [-Wmain]
 void main(int argc, char *argv[])
      ^~~~
prog.c: In function ‘main’:
prog.c:29:23: warning: passing argument 1 of ‘omp_init_lock’ from incompatible pointer type [-Wincompatible-pointer-types]
         omp_init_lock(&(arr[i]));
                       ^
In file included from prog.c:3:0:
/usr/lib/gcc/x86_64-linux-gnu/6/include/omp.h:100:13: note: expected ‘omp_lock_t * {aka struct <anonymous> *}’ but argument is of type ‘int *’
 extern void omp_init_lock (omp_lock_t *) __GOMP_NOTHROW;
             ^~~~~~~~~~~~~
prog.c: In function ‘numero1’:
prog.c:46:0: warning: ignoring #pragma omp parallel [-Wunknown-pragmas]
   #pragma omp parallel num_threads(48)
 
prog.c:49:0: warning: ignoring #pragma omp for [-Wunknown-pragmas]
     #pragma omp for
 
prog.c: In function ‘numero2’:
prog.c:64:0: warning: ignoring #pragma omp parallel [-Wunknown-pragmas]
   #pragma omp parallel num_threads(48)
 
prog.c:67:0: warning: ignoring #pragma omp for [-Wunknown-pragmas]
     #pragma omp for
 
prog.c:71:20: warning: passing argument 1 of ‘omp_set_lock’ from incompatible pointer type [-Wincompatible-pointer-types]
       omp_set_lock(&(arr[k]));
                    ^
In file included from prog.c:3:0:
/usr/lib/gcc/x86_64-linux-gnu/6/include/omp.h:104:13: note: expected ‘omp_lock_t * {aka struct <anonymous> *}’ but argument is of type ‘int *’
 extern void omp_set_lock (omp_lock_t *) __GOMP_NOTHROW;
             ^~~~~~~~~~~~
prog.c:74:22: warning: passing argument 1 of ‘omp_set_lock’ from incompatible pointer type [-Wincompatible-pointer-types]
         omp_set_lock(&(arr[k + 1]));
                      ^
In file included from prog.c:3:0:
/usr/lib/gcc/x86_64-linux-gnu/6/include/omp.h:104:13: note: expected ‘omp_lock_t * {aka struct <anonymous> *}’ but argument is of type ‘int *’
 extern void omp_set_lock (omp_lock_t *) __GOMP_NOTHROW;
             ^~~~~~~~~~~~
prog.c:77:24: warning: passing argument 1 of ‘omp_unset_lock’ from incompatible pointer type [-Wincompatible-pointer-types]
         omp_unset_lock(&(arr[k + 1]));
                        ^
In file included from prog.c:3:0:
/usr/lib/gcc/x86_64-linux-gnu/6/include/omp.h:105:13: note: expected ‘omp_lock_t * {aka struct <anonymous> *}’ but argument is of type ‘int *’
 extern void omp_unset_lock (omp_lock_t *) __GOMP_NOTHROW;
             ^~~~~~~~~~~~~~
prog.c:79:22: warning: passing argument 1 of ‘omp_set_lock’ from incompatible pointer type [-Wincompatible-pointer-types]
         omp_set_lock(&(arr[k+ 1]));
                      ^
In file included from prog.c:3:0:
/usr/lib/gcc/x86_64-linux-gnu/6/include/omp.h:104:13: note: expected ‘omp_lock_t * {aka struct <anonymous> *}’ but argument is of type ‘int *’
 extern void omp_set_lock (omp_lock_t *) __GOMP_NOTHROW;
             ^~~~~~~~~~~~
prog.c:82:24: warning: passing argument 1 of ‘omp_unset_lock’ from incompatible pointer type [-Wincompatible-pointer-types]
         omp_unset_lock(&(arr[k + 1]));
                        ^
In file included from prog.c:3:0:
/usr/lib/gcc/x86_64-linux-gnu/6/include/omp.h:105:13: note: expected ‘omp_lock_t * {aka struct <anonymous> *}’ but argument is of type ‘int *’
 extern void omp_unset_lock (omp_lock_t *) __GOMP_NOTHROW;
             ^~~~~~~~~~~~~~
prog.c:84:22: warning: passing argument 1 of ‘omp_set_lock’ from incompatible pointer type [-Wincompatible-pointer-types]
         omp_set_lock(&(arr[k + 1]));
                      ^
In file included from prog.c:3:0:
/usr/lib/gcc/x86_64-linux-gnu/6/include/omp.h:104:13: note: expected ‘omp_lock_t * {aka struct <anonymous> *}’ but argument is of type ‘int *’
 extern void omp_set_lock (omp_lock_t *) __GOMP_NOTHROW;
             ^~~~~~~~~~~~
prog.c:87:24: warning: passing argument 1 of ‘omp_unset_lock’ from incompatible pointer type [-Wincompatible-pointer-types]
         omp_unset_lock(&(arr[k + 1]));
                        ^
In file included from prog.c:3:0:
/usr/lib/gcc/x86_64-linux-gnu/6/include/omp.h:105:13: note: expected ‘omp_lock_t * {aka struct <anonymous> *}’ but argument is of type ‘int *’
 extern void omp_unset_lock (omp_lock_t *) __GOMP_NOTHROW;
             ^~~~~~~~~~~~~~
prog.c:91:22: warning: passing argument 1 of ‘omp_unset_lock’ from incompatible pointer type [-Wincompatible-pointer-types]
       omp_unset_lock(&(arr[k]));
                      ^
In file included from prog.c:3:0:
/usr/lib/gcc/x86_64-linux-gnu/6/include/omp.h:105:13: note: expected ‘omp_lock_t * {aka struct <anonymous> *}’ but argument is of type ‘int *’
 extern void omp_unset_lock (omp_lock_t *) __GOMP_NOTHROW;
             ^~~~~~~~~~~~~~
/home/utUZEO/cc4MJ4Fs.o: In function `numero1':
prog.c:(.text+0x10): undefined reference to `omp_get_thread_num'
/home/utUZEO/cc4MJ4Fs.o: In function `numero2':
prog.c:(.text+0xf9): undefined reference to `omp_get_thread_num'
prog.c:(.text+0x133): undefined reference to `omp_unset_lock'
prog.c:(.text+0x160): undefined reference to `omp_set_lock'
prog.c:(.text+0x196): undefined reference to `omp_set_lock'
prog.c:(.text+0x1b4): undefined reference to `omp_unset_lock'
prog.c:(.text+0x1bc): undefined reference to `omp_set_lock'
prog.c:(.text+0x1d7): undefined reference to `omp_unset_lock'
prog.c:(.text+0x1df): undefined reference to `omp_set_lock'
prog.c:(.text+0x1ed): undefined reference to `omp_unset_lock'
/home/utUZEO/cc4MJ4Fs.o: In function `main':
prog.c:(.text.startup+0x89): undefined reference to `omp_init_lock'
collect2: error: ld returned 1 exit status

Standard output is empty