int main(int argc, char **argv)
{
int nthreads = 0;
#ifdef UNIX
pthread_t threads[MAXTHREADS];
#endif UNIX
grain_type rowGranularity = NONE;
#ifdef WINDOWS
HANDLE threads[MAXTHREADS];
#endif
long initSum = 0, finalSum = 0;
int i;
if (argc > 3)
{
gridsize = atoi(argv[1]);
if (gridsize > MAXGRIDSIZE || gridsize < 1)
{
printf("Grid size must be between 1 and 10.\n");
return(1);
}
nthreads = atoi(argv[2]);
if (nthreads < 1 || nthreads > MAXTHREADS)
{
printf("Number of threads must be between 1 and 1000.");
return(1);
}
if (argv[3][1] == 'r' || argv[3][1] == 'R')
rowGranularity = ROW;
if (argv[3][1] == 'c' || argv[3][1] == 'C')
rowGranularity = CELL;
if (argv[3][1] == 'g' || argv[3][1] == 'G')
rowGranularity = GRID;
}
else
{
printf("Format: gridapp gridSize numThreads -cell\n");
printf(" gridapp gridSize numThreads -row\n");
printf(" gridapp gridSize numThreads -grid\n");
printf(" gridapp gridSize numThreads -none\n");
return(1);
}
printf("Initial Grid:\n\n");
initSum = InitGrid(grid, gridsize);
PrintGrid(grid, gridsize);
printf("\nInitial Sum: %d\n", initSum);
printf("Executing threads...\n");
//initialize all the mutex we need
#ifdef UNIX
init_row_mutex(row_mutex, gridsize);
init_cell_mutex(cell_mutex, gridsize);
#endif
#ifdef WINDOWS
init_row_mutex(row_mutex, gridsize);
init_cell_mutex(cell_mutex, gridsize);
#endif
/* better to seed the random number generator outside
of do swaps or all threads will start with same
choice
*/
srand((unsigned int)time( NULL ) );
time(&start_t);
for (i = 0; i < nthreads; i++)
{
//create thread
#ifdef UNIX
if (pthread_create(&(threads[i]), NULL, do_swaps, (void *)(&rowGranularity)) != 0)
{
perror("thread creation failed:");
exit(-1);
}
#endif
#ifdef WINDOWS
threads[i]=CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)do_swaps,(void*)(&rowGranularity), 0, NULL);
#endif
}
for (i = 0; i < nthreads; i++)
{
#ifdef UNIX
pthread_detach(threads[i]);
#endif
#ifdef WINDOWS
for (i = 0; i < nthreads; i++)
CloseHandle(threads[i]);
#endif
}
while (1)
{
#ifdef UNIX
sleep(2);
#endif
#ifdef WINDOWS
_sleep(2000);
#endif
if (threads_left == 0)
{
fprintf(stdout, "\nFinal Grid:\n\n");
PrintGrid(grid, gridsize);
finalSum = SumGrid(grid, gridsize);
fprintf(stdout, "\n\nFinal Sum: %d\n", finalSum);
if (initSum != finalSum){
fprintf(stdout,"DATA INTEGRITY VIOLATION!!!!!\n");
} else {
fprintf(stdout,"DATA INTEGRITY MAINTAINED!!!!!\n");
}
#ifdef UNIX
fprintf(stdout, "Secs elapsed: %g\n", difftime(end_t, start_t));
#endif
#ifdef WINDOWS
printf("secs elapsed: %d\n", end_t - start_t);
getchar();
#endif
exit(0);
}
}
//destroy the mutex we have created
#ifdef UNIX
pthread_mutex_destroy(&grid_mutex);
pthread_mutex_destroy(&row_mutex);
pthread_mutex_destroy(&lock_enter);
pthread_mutex_destroy(&lock_exit);
pthread_mutex_destroy(&cell_mutex);
#endif
#ifdef WIINDOWS
CloseHandle(grid_mutex);
CloseHandle(row_mutex);
CloseHandle(lock_enter);
CloseHandle(lock_exit);
CloseHandle(cell_mutex);
#endif
system("pause");
return(0);
}
int main(int argc, char **argv)
{
int nthreads = 0;
pthread_t threads[MAXTHREADS];
grain_type rowGranularity = NONE;
long initSum = 0, finalSum = 0;
int i;
if (argc > 3)
{
gridsize = atoi(argv[1]);
if (gridsize > MAXGRIDSIZE || gridsize < 1)
{
printf("Grid size must be between 1 and 10.\n");
return(1);
}
nthreads = atoi(argv[2]);
if (nthreads < 1 || nthreads > MAXTHREADS)
{
printf("Number of threads must be between 1 and 1000.");
return(1);
}
if (argv[3][1] == 'r' || argv[3][1] == 'R')
rowGranularity = ROW;
if (argv[3][1] == 'c' || argv[3][1] == 'C')
rowGranularity = CELL;
if (argv[3][1] == 'g' || argv[3][1] == 'G')
rowGranularity = GRID;
}
else
{
printf("Format: gridapp gridSize numThreads -cell\n");
printf(" gridapp gridSize numThreads -row\n");
printf(" gridapp gridSize numThreads -grid\n");
printf(" gridapp gridSize numThreads -none\n");
return(1);
}
printf("Initial Grid:\n\n");
initSum = InitGrid(grid, gridsize);
PrintGrid(grid, gridsize);
printf("\nInitial Sum: %d\n", initSum);
printf("Executing threads...\n");
/* better to seed the random number generator outside
of do swaps or all threads will start with same
choice
*/
srand((unsigned int)time( NULL ) );
time(&start_t);
for (i = 0; i < nthreads; i++)
{
if (pthread_create(&(threads[i]), NULL, do_swaps, (void *)(&rowGranularity)) != 0)
{
perror("thread creation failed:");
exit(-1);
}
}
for (i = 0; i < nthreads; i++)
pthread_detach(threads[i]);
while (1)
{
sleep(2);
if (threads_left == 0)
{
fprintf(stdout, "\nFinal Grid:\n\n");
PrintGrid(grid, gridsize);
finalSum = SumGrid(grid, gridsize);
fprintf(stdout, "\n\nFinal Sum: %d\n", finalSum);
if (initSum != finalSum){
fprintf(stdout,"DATA INTEGRITY VIOLATION!!!!!\n");
} else {
fprintf(stdout,"DATA INTEGRITY MAINTAINED!!!!!\n");
}
fprintf(stdout, "Secs elapsed: %g\n", difftime(end_t, start_t));
exit(0);
}
}
return(0);
}