gistfile1.txt

typedef struct {
  char fileName[1000];
  int array[1000];
  size_t used;
  size_t size;
} FileFindings;

//jakiś tam kod...

int main( int argc, char ** argv )
{
    FileFindings* fileFindings = NULL;

    char keyWord[100];
    char userPath[1000];
    int filesCount = 0;

    //Create a type for struct FileFindings
    const int nitems = 4;
    int blocklen[4] = {1000,1000,1,1};
    MPI_Datatype types[4] = {MPI_CHAR, MPI_INT, MPI_INT, MPI_INT};
    MPI_Datatype mpi_filefinding_type;
    MPI_Aint disp[4];

    //MPI INIT
    int num_elements_per_proc;
    int size, rank;
    double time_initial,time_current,time;

    MPI_Init(&argc, &argv);
    disp[0] = offsetof(FileFindings, fileName);
    disp[1] = offsetof(FileFindings, array);
    disp[2] = offsetof(FileFindings, used);
    disp[3] = offsetof(FileFindings, size);

    MPI_Type_create_struct(nitems, blocklen, disp, types, &mpi_filefinding_type);
    MPI_Type_commit(&mpi_filefinding_type);

    MPI_Comm_size(MPI_COMM_WORLD, &size);
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    if (size < 2) {
            printf("Requires at least two processes.\n");
            exit(-1);
    }

    if(rank == 0) {
        printf("Enter path to directory with files (ended with '/')\n");
        scanf(" %[^\n]s",userPath);
        printf("Keyword to search (max 100 characeters): ");
        scanf(" %[^\n]s",keyWord);

        if(strlen(userPath) < 2)
        {
            strcpy(userPath, "/home/marcin/Education/files/");
        }
        filesCount = getFilesCount(userPath);
        fileFindings = fillFilePaths(userPath, filesCount);
        if (argc != 2) {
           num_elements_per_proc = filesCount;
         }
        else {
           num_elements_per_proc = atoi(argv[1]);
        }
        printf("%d\n",filesCount);
        printf("%d\n",num_elements_per_proc);
    }
    // For each process, create a buffer that will hold a subset of the entire
    FileFindings *subfileFindings = malloc(sizeof(FileFindings) * num_elements_per_proc);
    //Send necessary variables into all threads
    MPI_Bcast(&userPath, 1000, MPI_CHAR, 0, MPI_COMM_WORLD);
    MPI_Bcast(&keyWord, 100, MPI_CHAR, 0, MPI_COMM_WORLD);
    MPI_Bcast(&T[0], 100, MPI_INT, 0, MPI_COMM_WORLD);
    MPI_Bcast(&filesCount, 1, MPI_INT, 0, MPI_COMM_WORLD);

    MPI_Scatter(fileFindings, num_elements_per_proc, mpi_filefinding_type, subfileFindings,
                num_elements_per_proc, mpi_filefinding_type, 0, MPI_COMM_WORLD);

    printf("%s", subfileFindings[0].fileName); //KONIEC, wyświetla się dobrze tylko dla 1 procesu - strzelam że dal roota :(