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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <mpi.h>
  4.  
  5. int main()
  6. {
  7.     int rank, comm_sz;
  8.     double vetor1[N], vetor2[N];
  9.  
  10.     MPI_Init(NULL, NULL);
  11.     MPI_Comm_rank(MPI_COMM_WORLD, &rank);
  12.     MPI_Comm_size(MPI_COMM_WORLD, &comm_sz);
  13.  
  14.     // Tamanho do vetor e escalar
  15.     int N = 100000; 
  16.     double a = 2.0;
  17.  
  18.     //variaveis importantes
  19.     int partition = (N/comm_sz)
  20.     double results_local[partition], final_result; 
  21.  
  22.  
  23.     if (rank == 0)
  24.     {
  25.         // Inicializa vetores
  26.         for (int i = 0; i < N; i++)
  27.         {
  28.             vetor1[i] = 1.0;
  29.             vetor2[i] = 1.0;
  30.         }
  31.     }
  32.  
  33. 	//Transmitindo variaveis
  34.     MPI_Bcast(vetor1, N, MPI_DOUBLE, 0, MPI_COMM_WORLD);
  35.     MPI_Bcast(vetor2, N, MPI_DOUBLE, 0, MPI_COMM_WORLD);
  36.     MPI_Bcast(&a, 1, MPI_DOUBLE, 0, MPI_COMM_WORLD);
  37.  
  38.  
  39.  
  40.     for (int i = rank*partition; i < (rank + 1)*partition; i++)
  41.     {
  42.         results_local[i] = vetor1[i] * vetor2[i];
  43.     }
  44.  
  45.  
  46.     // apliocando mpi reduce
  47.     MPI_Reduce(results_local, final_result, N, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
  48.  
  49.  
  50.  
  51.     if (rank == 0)
  52.     {
  53.     	final_result *= a
  54.         printf("Número de processadores utilizados: %d\n", comm_sz);
  55.         printf("Resultado final: %.2f", final_result)
  56.     }
  57.  
  58.     MPI_Finalize();
  59.     return 0;
  60. }
  61.  
Success #stdin #stdout #stderr 0.27s 40892KB
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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 "int main"
Execution halted
https://ideone.com/xeVOzM
language:
R (R 3.5.2)
created:
10 days ago
visibility:
public

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