JDK's concurrency package, Boost's thread library, Perl's Thread library (not in Python though) all implement barrier, I haven't come across a need for using a barrier, so wondering what would a typical use case be in multi-threaded applications. ...
Dear all, I want to use MPI (MPICH2) on windows. I write this command: MPI_Barrier(MPI_COMM_WORLD); And I expect it blocks all Processors until all group members have called it. But it is not happen. I add a schematic of my code: int a; if(myrank == RootProc) a = 4; MPI_Barrier(MPI_COMM_WORLD); cout << "My Rank = " << my...
Dear all, How can I be sure that MPI_Barrier act correctly? What's the method of test for that? Thank you ...
I'm creating n threads & then starting then execution after a barrier breakdown. In global data space: int bkdown = 0; In main(): pthread_barrier_init(&bar,NULL,n); for(i=0;i<n;i++) { pthread_create(&threadIdArray[i],NULL,runner,NULL); if(i==n-2)printf("breakdown imminent!\n"); if(i==n-1)printf("breakdown already occurred!\n"); } ...