=== 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.TEST.TPROF.MPI.SMPLSDC.ex(+0x1a4e25) [0x5556ed2ece25]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:178:39

 1: ./Castro2d.gnu.TEST.TPROF.MPI.SMPLSDC.ex(+0x1a6a56) [0x5556ed2eea56]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:82:8

 2: /lib64/libc.so.6(+0x3c6b0) [0x7fe7ea2a56b0]
    __restore_rt
??:0

 3: /lib64/libc.so.6(gsignal+0x145) [0x7fe7ea2a5625]
    raise
??:0

 4: /lib64/libc.so.6(abort+0x12b) [0x7fe7ea28e8d9]
    abort
??:0

 5: ./Castro2d.gnu.TEST.TPROF.MPI.SMPLSDC.ex(+0x42af8) [0x5556ed18aaf8]
    .annobin__ZSt20__replacement_assertPKciS0_S0_.end
??:0

 6: ./Castro2d.gnu.TEST.TPROF.MPI.SMPLSDC.ex(+0x6819f) [0x5556ed1b019f]
    .annobin__ZN5amrex8FabArrayINS_9FArrayBoxEE5arrayIS1_Li0EEENS_6Array4IdEERKNS_6MFIterE.end
/usr/include/c++/9/bits/stl_vector.h:1042:2

 7: ./Castro2d.gnu.TEST.TPROF.MPI.SMPLSDC.ex(+0x82088) [0x5556ed1ca088]
    mom_flux_has_p(int, int, int) inlined at /raid/testing/castro-gfortran/Castro//Source/hydro/Castro_ctu_hydro.cpp:1372:45 in Castro::construct_ctu_hydro_source(double, double)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_util.H:46:9
Castro::construct_ctu_hydro_source(double, double)
/raid/testing/castro-gfortran/Castro//Source/hydro/Castro_ctu_hydro.cpp:1372:45

 8: ./Castro2d.gnu.TEST.TPROF.MPI.SMPLSDC.ex(+0x4e1bf) [0x5556ed1961bf]
    Castro::do_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:181:28

 9: ./Castro2d.gnu.TEST.TPROF.MPI.SMPLSDC.ex(+0x4e7f3) [0x5556ed1967f3]
    advance_status::operator=(advance_status&&) inlined at /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:570:90 in Castro::subcycle_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro.H:148:8
Castro::subcycle_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:570:90

10: ./Castro2d.gnu.TEST.TPROF.MPI.SMPLSDC.ex(+0x4d05a) [0x5556ed19505a]
    double const& std::min<double>(double const&, double const&) inlined at /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:55:92 in Castro::advance(double, double, int, int)
/usr/include/c++/9/bits/stl_algobase.h:205:14
Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:55:92

11: ./Castro2d.gnu.TEST.TPROF.MPI.SMPLSDC.ex(+0x20976d) [0x5556ed35176d]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2050:81

12: ./Castro2d.gnu.TEST.TPROF.MPI.SMPLSDC.ex(+0x1fb7da) [0x5556ed3437da]
    std::vector<double, std::allocator<double> >::operator[](unsigned long) inlined at /raid/testing/castro-gfortran/amrex//Src/Base/AMReX_Vector.H:34:54 in amrex::Amr::coarseTimeStep(double)
/usr/include/c++/9/bits/stl_vector.h:1042:2
amrex::Vector<double, std::allocator<double> >::operator[](unsigned long)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_Vector.H:34:54
amrex::Amr::coarseTimeStep(double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2377:26

13: ./Castro2d.gnu.TEST.TPROF.MPI.SMPLSDC.ex(+0x229fc) [0x5556ed16a9fc]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:143:33

14: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fe7ea2901a3]
    __libc_start_main
??:0

15: ./Castro2d.gnu.TEST.TPROF.MPI.SMPLSDC.ex(+0x2f44e) [0x5556ed17744e]
    _start
??:0


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