=== 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() [0x9a9f02]
    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() [0x9a9a36]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:85:15

 2: /lib64/libc.so.6(+0x3da70) [0x7f432f5aba70]
    __restore_rt
??:0

 3: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x5a0956]
    load_input_states(int, int, int, int, amrex::Array4<double const> const&, amrex::Array4<double const> const&, amrex::Array4<double const> const&, RiemannState&, RiemannState&, RiemannAux&) inlined at /raid/testing/castro-gfortran/Castro//Source/hydro/riemann_solvers.H:1337:20 in riemann_state(int, int, int, int, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double const> const&, RiemannState&, amrex::GeometryData const&, bool, bool, amrex::GpuArray<int, 3u> const&, amrex::GpuArray<int, 3u> const&)
/raid/testing/castro-gfortran/Castro//Source/hydro/riemann.H:198:27
riemann_state(int, int, int, int, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double const> const&, RiemannState&, amrex::GeometryData const&, bool, bool, amrex::GpuArray<int, 3u> const&, amrex::GpuArray<int, 3u> const&)
/raid/testing/castro-gfortran/Castro//Source/hydro/riemann_solvers.H:1337:20

 4: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x58cdb7]
    Castro::cmpflx_plus_godunov(amrex::Box const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double const> const&, amrex::Array4<double const> const&, int, bool)::{lambda(int, int, int)#1}::operator()(int, int, int) const
/raid/testing/castro-gfortran/Castro//Source/hydro/riemann.cpp:88:26

 5: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x58f788]
    call_f<Castro::cmpflx_plus_godunov(const amrex::Box&, const amrex::Array4<double>&, const amrex::Array4<double>&, const amrex::Array4<double>&, const amrex::Array4<double>&, const amrex::Array4<double>&, const amrex::Array4<double const>&, const amrex::Array4<double const>&, int, bool)::<lambda(int, int, int)> >
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_GpuLaunchFunctsC.H:30:5

 6: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x58f722]
    ParallelFor<Castro::cmpflx_plus_godunov(const amrex::Box&, const amrex::Array4<double>&, const amrex::Array4<double>&, const amrex::Array4<double>&, const amrex::Array4<double>&, const amrex::Array4<double>&, const amrex::Array4<double const>&, const amrex::Array4<double const>&, int, bool)::<lambda(int, int, int)> >
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_GpuLaunchFunctsC.H:118:5

 7: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x58f316]
    Castro::cmpflx_plus_godunov(amrex::Box const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double const> const&, amrex::Array4<double const> const&, int, bool)
/raid/testing/castro-gfortran/Castro//Source/hydro/riemann.cpp:206:1

 8: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x536b0a]
    Castro::construct_ctu_hydro_source(double, double)
/raid/testing/castro-gfortran/Castro//Source/hydro/Castro_ctu_hydro.cpp:960:26

 9: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x4b643a]
    Castro::do_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:168:39

10: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x4b79bc]
    Castro::subcycle_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:649:90

11: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x4b3ae3]
    Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:55:55

12: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0xaa38b0]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2015:44

13: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0xaa40c2]
    amrex::Amr::coarseTimeStep(double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2125:26

14: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x4cca02]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:136:5

15: /lib64/libc.so.6(__libc_start_main+0xf2) [0x7f432f5961e2]
    __libc_start_main
??:0

16: ./Castro3d.gnu.DEBUG.TPROF.MPI.ex() [0x40ba6e]
    _start
??:0


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