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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <omp.h>
  4.  
  5. #define N 1000
  6.  
  7. void initialize_random_matrix(int mat[N][N]) {
  8.     for (int i = 0; i < N; i++) {
  9.         for (int j = 0; j < N; j++) {
  10.             mat[i][j] = rand() % 100; // Generate random values between 0 and 99
  11.         }
  12.     }
  13. }
  14.  
  15. void matrix_multiply(int A[N][N], int B[N][N], int C[N][N]) {
  16.     #pragma omp parallel for
  17.     for (int i = 0; i < N; i++) {
  18.         for (int j = 0; j < N; j++) {
  19.             int sum = 0;
  20.             #pragma omp parallel for reduction(+:sum)
  21.             for (int k = 0; k < N; k++) {
  22.                 sum += A[i][k] * B[k][j];
  23.             }
  24.             C[i][j] = sum;
  25.         }
  26.     }
  27. }
  28.  
  29. int main() {
  30.     int A[N][N], B[N][N], C[N][N];
  31.  
  32.     // Initialize matrices A and B with 21 and 32
  33.     initialize_random_matrix(A);
  34.     initialize_random_matrix(B);
  35.  
  36.     // Perform matrix multiplication
  37.     matrix_multiply(A, B, C);
  38.  
  39.     // Print the result (optional)
  40.     // ...
  41.  
  42.     return 0;
  43. }
  44.  
Success #stdin #stdout #stderr 0.27s 40872KB
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Standard input is empty
stdout
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Standard output is empty
stderr
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Error: unexpected symbol in "void initialize_random_matrix"
Execution halted
https://ideone.com/PlldzA
language:
R (R 3.5.2)
created:
16 days ago
visibility:
public

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