=== 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() [0x706106]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
tmp_build_dir/s/2d.pgi.CUDA.EXE/AMReX_BLBackTrace.cpp:174

 1: ./Maestro2d.pgi.CUDA.ex() [0x707cd2]
    amrex::BLBackTrace::handler(int)
tmp_build_dir/s/2d.pgi.CUDA.EXE/AMReX_BLBackTrace.cpp:80

 2: ./Maestro2d.pgi.CUDA.ex() [0x6528a8]
    amrex::Gpu::Device::synchronize()
tmp_build_dir/s/2d.pgi.CUDA.EXE/AMReX_GpuDevice.cpp:589

 3: ./Maestro2d.pgi.CUDA.ex() [0x47d385]
    BaseStateArray<int>::operator()(int) const inlined at tmp_build_dir/s/2d.pgi.CUDA.EXE/MaestroAverage.cpp:76 in Maestro::Average(amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> > const&, BaseState<double>&, int)
../../../Source/BaseState.H:70
Maestro::Average(amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> > const&, BaseState<double>&, int)
tmp_build_dir/s/2d.pgi.CUDA.EXE/MaestroAverage.cpp:76

 4: ./Maestro2d.pgi.CUDA.ex() [0x596b65]
    Maestro::Regrid()
tmp_build_dir/s/2d.pgi.CUDA.EXE/MaestroRegrid.cpp:98

 5: ./Maestro2d.pgi.CUDA.ex() [0x4d366e]
    Maestro::Evolve()
tmp_build_dir/s/2d.pgi.CUDA.EXE/MaestroEvolve.cpp:26

 6: ./Maestro2d.pgi.CUDA.ex() [0x40adfc]
    main
tmp_build_dir/s/2d.pgi.CUDA.EXE/main.cpp:64

 7: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fede7bf61a3]
    __libc_start_main
??:0

 8: ./Maestro2d.pgi.CUDA.ex() [0x41924e]
    _start
??:0