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  1. #include <stdio.h>
  2. #include <string.h>
  3. #include <mpi.h>
  4. #include <ctime>
  5. #include <cstdlib>
  6. const int MAX_STRING = 100;
  7. int main(void)
  8. {
  9.     char gret[MAX_STRING];
  10.     int csize;
  11.     int prank;
  12.     MPI_Init(NULL, NULL);
  13.     MPI_Comm_size(MPI_COMM_WORLD, &csize);
  14.     MPI_Comm_rank(MPI_COMM_WORLD, &prank);
  15.     std::srand(static_cast<unsigned int>(std::time(0)));
  16.  
  17.     for(int i = 0; i < csize; i++){
  18.         int rand_num = std::rand() % 10;
  19.         char temp[2];
  20.         sprintf(temp, "%d%d", prank, rand_num);
  21.         MPI_Send(temp, strlen(temp) + 1, MPI_CHAR, i, 0, MPI_COMM_WORLD);
  22.         MPI_Recv(temp, 3, MPI_CHAR, i, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
  23.         gret[temp[0]] = temp[0];
  24.         gret[temp[0]+1] = temp[1];
  25.     }
  26.     printf("Process %d recived:%s \n", prank, gret);
  27.  
  28.     MPI_Finalize();
  29.     return 0;
  30. }
Success #stdin #stdout #stderr 0.27s 40472KB
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stdin
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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 "const int"
Execution halted
https://ideone.com/iAHYCH
language:
R (R 3.5.2)
created:
11 hours ago
visibility:
public

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