=== 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: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x2a2e16) [0x5607cf061e16]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:174:29

 1: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x2a2997) [0x5607cf061997]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:82:8

 2: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x189f93) [0x5607cef48f93]
    amrex::ParallelDescriptor::Abort(int, bool)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_ParallelDescriptor.cpp:230:22

 3: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x134535) [0x5607ceef3535]
    amrex::detail::Assert_host_doit(char const*, char const*, int, char const*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX.cpp:255:1

 4: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x2925c) [0x5607cede825c]
    amrex::Assert(char const*, char const*, int, char const*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX.H:150:5

 5: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x34dc8) [0x5607cedf3dc8]
    amrex::FabArray<amrex::FArrayBox>::fabPtr(amrex::MFIter const&)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_FabArray.H:901:5

 6: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x3026e) [0x5607cedef26e]
    amrex::Array4<double> amrex::FabArray<amrex::FArrayBox>::array<amrex::FArrayBox, 0>(amrex::MFIter const&)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_FabArray.H:967:12

 7: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0xb9db9) [0x5607cee78db9]
    Castro::construct_ctu_hydro_source(double, double)
/raid/testing/castro-gfortran/Castro//Source/hydro/Castro_ctu_hydro.cpp:1370:27

 8: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x482ff) [0x5607cee072ff]
    Castro::do_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:181:36

 9: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x4936a) [0x5607cee0836a]
    Castro::subcycle_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:570:90

10: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x45c0a) [0x5607cee04c0a]
    Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:55:55

11: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x31c336) [0x5607cf0db336]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2050:44

12: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x31cbc2) [0x5607cf0dbbc2]
    amrex::Amr::coarseTimeStep(double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2377:26

13: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x61c4a) [0x5607cee20c4a]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:143:5

14: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f09905f21a3]
    __libc_start_main
??:0

15: ./Castro1d.gnu.DEBUG.TPROF.MPI.ex(+0x1565e) [0x5607cedd465e]
    _start
??:0


===== TinyProfilers ======
main()
Amr::coarseTimeStep()
Amr::timeStep()
Castro::advance()
Castro::subcycle_advance_ctu()
Castro::do_advance_ctu()
Castro::construct_ctu_hydro_source()