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  1.  
  2. #include "mpi.h" 
  3. #include <stdio.h>
  4. #include <time.h>
  5. #include <stdlib.h>
  6.  
  7. int testWinner(char player1, char player2);
  8.  
  9. const char* rsp = "rsp";
  10.  
  11. int main(int argc, char* argv[])
  12. {
  13.         int size, rank, play, otherPlay, tag1 = 1, tag2 = 2, winner = -1000;
  14.         MPI_Status Stat;
  15.  
  16.         MPI_Init(&argc, &argv);
  17.         MPI_Comm_size(MPI_COMM_WORLD, &size);
  18.         MPI_Comm_rank(MPI_COMM_WORLD, &rank);
  19.  
  20.         srand(rank * time(0));
  21.         play = rand() % 3;
  22.  
  23.         if (rank == 0) {
  24.                 MPI_Send(&play, 1, MPI_INT, 1, tag1, MPI_COMM_WORLD);
  25.                 MPI_Recv(&otherPlay, 1, MPI_INT, 1, tag2, MPI_COMM_WORLD, &Stat);
  26.                 winner = testWinner(rsp[play], rsp[otherPlay]);
  27.         }
  28.         else if (rank == 1) {
  29.  
  30.                 MPI_Recv(&otherPlay, 1, MPI_INT, 0, tag1, MPI_COMM_WORLD, &Stat);
  31.                 MPI_Send(&play, 1, MPI_INT, 0, tag2, MPI_COMM_WORLD);
  32.                 winner = testWinner(rsp[otherPlay], rsp[play]);
  33.         }
  34.  
  35.         printf("The winner from processor %d is %d\n", rank, winner);
  36.         MPI_Finalize();
  37.         return 0;
  38. }
  39.  
  40. int testWinner(char player1, char player2)
  41. {
  42.         if (player1 == player2)
  43.                 return -1;
  44.         if ((player1 == 'r' && player2 == 's') ||
  45.                 (player1 == 's' && player2 == 'p') ||
  46.                 (player1 == 'p' && player2 == 'r'))
  47.                 return 0;
  48.         return 1;
  49. }
  50.  
Success #stdin #stdout #stderr 0.33s 40784KB
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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 "int testWinner"
Execution halted
https://ideone.com/codNhr
language:
R (R 3.5.2)
created:
15 days ago
visibility:
public

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