=== 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: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x99838c]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:175:29

 1: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x997ec0]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:85:15

 2: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x81be90]
    amrex::ParallelDescriptor::Abort(int, bool)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_ParallelDescriptor.cpp:206:29

 3: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x7d3201]
    amrex::Error_host(char const*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX.cpp:217:1

 4: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x72a83e]
    amrex::Error(char const*) inlined at /raid/testing/castro-gfortran/Microphysics//opacity/rad_power_law/actual_opacity.H:36:25 in actual_opacity(double&, double&, double, double, double, double, bool, bool)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX.H:123:5
actual_opacity(double&, double&, double, double, double, double, bool, bool)
/raid/testing/castro-gfortran/Microphysics//opacity/rad_power_law/actual_opacity.H:36:25

 5: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x72a950]
    opacity(double&, double&, double, double, double, double, bool, bool)
/raid/testing/castro-gfortran/Microphysics//opacity/opacity.H:17:1

 6: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x707c4f]
    Radiation::get_rosseland(amrex::MultiFab&, amrex::AmrLevel*, int)::{lambda(int, int, int)#1}::operator()(int, int, int) const
/raid/testing/castro-gfortran/Castro//Source/radiation/Radiation.cpp:1599:33

 7: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x729b4d]
    call_f<Radiation::get_rosseland(amrex::MultiFab&, amrex::AmrLevel*, int)::<lambda(int, int, int)> >
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_GpuLaunchFunctsC.H:30:5

 8: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x726ec8]
    ParallelFor<Radiation::get_rosseland(amrex::MultiFab&, amrex::AmrLevel*, int)::<lambda(int, int, int)> >
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_GpuLaunchFunctsC.H:118:5

 9: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x708f98]
    Radiation::get_rosseland(amrex::MultiFab&, amrex::AmrLevel*, int)
/raid/testing/castro-gfortran/Castro//Source/radiation/Radiation.cpp:1545:44

10: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x7624e3]
    Radiation::single_group_update(int, int, int)
/raid/testing/castro-gfortran/Castro//Source/radiation/SGRadSolver.cpp:103:30

11: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x7bb32c]
    Castro::final_radiation_call(amrex::MultiFab&, int, int)
/raid/testing/castro-gfortran/Castro//Source/radiation/Castro_radiation.cpp:47:43

12: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x4bb7ab]
    Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:118:21

13: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0xa8e99a]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2015:44

14: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0xa8f1ac]
    amrex::Amr::coarseTimeStep(double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2125:26

15: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x4d3f60]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:136:5

16: /lib64/libc.so.6(__libc_start_main+0xf2) [0x7f6eda6d61e2]
    __libc_start_main
??:0

17: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x40a90e]
    _start
??:0


===== TinyProfilers ======
main()
Amr::coarseTimeStep()
Amr::timeStep()
Castro::advance()
Radiation::single_group_update
Radiation::get_rosseland