=== If no file names and line numbers are shown below, one can run
            addr2line -Cpfie my_exefile my_line_address
    to convert `my_line_address` (e.g., 0x4a6b) into file name and line number.
    Or one can use amrex/Tools/Backtrace/parse_bt.py.

=== Please note that the line number reported by addr2line may not be accurate.
    One can use
            readelf -wl my_exefile | grep my_line_address'
    to find out the offset for that line.

 0: ./Maestro2d.pgi.CUDA.ex() [0x7d6296]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
tmp_build_dir/s/2d.pgi.CUDA.EXE/AMReX_BLBackTrace.cpp:167

 1: ./Maestro2d.pgi.CUDA.ex() [0x7d8a02]
    amrex::BLBackTrace::handler(int)
tmp_build_dir/s/2d.pgi.CUDA.EXE/AMReX_BLBackTrace.cpp:71

 2: ./Maestro2d.pgi.CUDA.ex() [0x4d78f8]
    amrex::Gpu::synchronize()
/raid/testing/maestroex-gpu/amrex//Src/Base/AMReX_GpuDevice.H:148

 3: ./Maestro2d.pgi.CUDA.ex() [0x7a12a5]
    amrex::MFIter::~MFIter()
tmp_build_dir/s/2d.pgi.CUDA.EXE/AMReX_MFIter.cpp:216

 4: ./Maestro2d.pgi.CUDA.ex() [0x6554d4]
    Maestro::Burner(amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> > const&, amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> >&, amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> > const&, amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> >&, amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> >&, amrex::PODVector<double, amrex::ManagedArenaAllocator<double> > const&, double, double)
tmp_build_dir/s/2d.pgi.CUDA.EXE/MaestroReact.cpp:217

 5: ./Maestro2d.pgi.CUDA.ex() [0x6570a7]
    Maestro::React(amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> > const&, amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> >&, amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> >&, amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> >&, amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> >&, amrex::PODVector<double, amrex::ManagedArenaAllocator<double> > const&, double, double)
tmp_build_dir/s/2d.pgi.CUDA.EXE/MaestroReact.cpp:56

 6: ./Maestro2d.pgi.CUDA.ex() [0x4393ce]
    Maestro::AdvanceTimeStep(bool)
tmp_build_dir/s/2d.pgi.CUDA.EXE/MaestroAdvance.cpp:985

 7: ./Maestro2d.pgi.CUDA.ex() [0x52c7e5]
    Maestro::Evolve()
tmp_build_dir/s/2d.pgi.CUDA.EXE/MaestroEvolve.cpp:89

 8: ./Maestro2d.pgi.CUDA.ex() [0x40bd63]
    main
tmp_build_dir/s/2d.pgi.CUDA.EXE/main.cpp:66

 9: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fb950a5b1a3]
    __libc_start_main
??:0

10: ./Maestro2d.pgi.CUDA.ex() [0x411c3e]
    _start
??:0