=== 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: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x7497c0]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:175:29

 1: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x7492f4]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:85:15

 2: /lib64/libc.so.6(+0x3da60) [0x7f066ba5ca60]
    __restore_rt
??:0

 3: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x513c88]
    Castro::riemanncg(amrex::Box const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double const> const&, amrex::Array4<double> const&, int)::{lambda(int, int, int)#1}::operator()(int, int, int) const
/raid/testing/castro-gfortran/Castro//Source/hydro/riemann_solvers.cpp:134:23

 4: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x527007]
    call_f<Castro::riemanncg(const amrex::Box&, const amrex::Array4<double>&, const amrex::Array4<double>&, const amrex::Array4<double const>&, const amrex::Array4<double>&, int)::<lambda(int, int, int)> >
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_GpuLaunchFunctsC.H:30:5

 5: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x52696b]
    ParallelFor<Castro::riemanncg(const amrex::Box&, const amrex::Array4<double>&, const amrex::Array4<double>&, const amrex::Array4<double const>&, const amrex::Array4<double>&, int)::<lambda(int, int, int)> >
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_GpuLaunchFunctsC.H:118:5

 6: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x51b0ec]
    Castro::riemanncg(amrex::Box const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double const> const&, amrex::Array4<double> const&, int)
/raid/testing/castro-gfortran/Castro//Source/hydro/riemann_solvers.cpp:475:1

 7: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x50eb9c]
    Castro::riemann_state(amrex::Box const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::Array4<double const> const&, int, int)
/raid/testing/castro-gfortran/Castro//Source/hydro/riemann.cpp:255:14

 8: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x50d4c8]
    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)
/raid/testing/castro-gfortran/Castro//Source/hydro/riemann.cpp:40:18

 9: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x4d131a]
    Castro::construct_ctu_hydro_source(double, double)
/raid/testing/castro-gfortran/Castro//Source/hydro/Castro_ctu_hydro.cpp:588:26

10: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x47065d]
    Castro::do_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:182:36

11: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x471bcf]
    Castro::subcycle_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:655:90

12: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x46ea77]
    Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:55:55

13: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x808086]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2016:44

14: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x808898]
    amrex::Amr::coarseTimeStep(double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2126:26

15: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x485d12]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:136:5

16: /lib64/libc.so.6(__libc_start_main+0xf2) [0x7f066ba471e2]
    __libc_start_main
??:0

17: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex() [0x40a71e]
    _start
??:0


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