> > Breakpoint 1, main (argc=1, argv=0xbf81fae4) at mpitest.c:6 > > 6 MPI_Init(&argc, &argv); > > (gdb) p argc > > $1 = 1 > > (gdb) n > > 7 MPI_Finalize(); > > (gdb) p argc > > Cannot access memory at address 0x0 > > (gdb) > > That's very odd. I don't see where this is happening in the code -- > we literally never assign that value. Can you run this through > valgrind and see if there's something else going on?
It seems extremely likely that this is some sort of gdb or toolchain bug. MPI_Init is passed &argc, so it could easily corrupt the value in argc, but I don't see how it could change the address of the parameter argc itself. - R.
