=== 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.TEST.TPROF.MPI.ex(+0x233d30) [0x55a01dba2d30]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:174:39

 1: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x235b90) [0x55a01dba4b90]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:80:8

 2: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x50a58) [0x55a01d9bfa58]
    Castro::subcycle_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:533:25

 3: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x46df9) [0x55a01d9b5df9]
    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:204:9
Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:55:92

 4: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x2a9fcd) [0x55a01dc18fcd]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1977:81

 5: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x29c23a) [0x55a01dc0b23a]
    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:2087:26

 6: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x2503c) [0x55a01d99403c]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:143:33

 7: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fb2691631a3]
    __libc_start_main
??:0

 8: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x2d5ae) [0x55a01d99c5ae]
    _start
??:0


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