I am using TV8 to debug my MPI program using OPENMPI. My code has running time error, so I want to use TOtalview to find where the error come from. But when I using "step" to go to subroutine, a lot of binary code jump. My question is how can I know which line of my code having problem by using TV8. I though there should be some method like using gdb to show which line of code executing have problem. My code error information is segment fault. Thanks