=== 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(+0x3c345c) [0x5591221fa45c]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:170:29

 1: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x3c2e81) [0x5591221f9e81]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:80:8

 2: /lib64/libc.so.6(+0x3c6b0) [0x7f2e4c9e06b0]
    __restore_rt
??:0

 3: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x824191) [0x55912265b191]
    set_problem_tags
/raid/testing/castro-gfortran/Castro//Exec/science/wdmerger/problem_tagging_nd.F90:126

 4: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x24c9c) [0x559121e5bc9c]
    Castro::apply_problem_tags(amrex::TagBoxArray&, double)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:3306:29

 5: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x23e26) [0x559121e5ae26]
    Castro::errorEst(amrex::TagBoxArray&, int, int, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:3232:5

 6: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x489b2f) [0x5591222c0b2f]
    amrex::Amr::ErrorEst(int, amrex::TagBoxArray&, double, int)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2947:1

 7: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x470ef2) [0x5591222a7ef2]
    amrex::AmrMesh::MakeNewGrids(int, double, int&, amrex::Vector<amrex::BoxArray, std::allocator<amrex::BoxArray> >&)
/raid/testing/castro-gfortran/amrex//Src/AmrCore/AMReX_AmrMesh.cpp:592:20

 8: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x48989e) [0x5591222c089e]
    amrex::Amr::grid_places(int, double, int&, amrex::Vector<amrex::BoxArray, std::allocator<amrex::BoxArray> >&)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2928:9

 9: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x489cd0) [0x5591222c0cd0]
    amrex::Amr::bldFineLevels(double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2977:27

10: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x47f5cc) [0x5591222b65cc]
    amrex::Amr::FinalizeInit(double, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1305:14

11: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x47f2d7) [0x5591222b62d7]
    amrex::Amr::initialInit(double, double, amrex::BoxArray const*, amrex::Vector<int, std::allocator<int> > const*)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1239:5

12: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x47ea68) [0x5591222b5a68]
    amrex::Amr::init(double, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1121:13

13: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x9ba48) [0x559121ed2a48]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:131:33

14: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f2e4c9cb1a3]
    __libc_start_main
??:0

15: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x1475e) [0x559121e4b75e]
    _start
??:0


===== TinyProfilers ======
main()
Amr::init()
Amr::initialInit()
Amr::FinalizeInit()
Amr::bldFineLevels()
Amr::grid_places()
AmrMesh::MakeNewGrids()
Castro::errorEst()
Castro::apply_problem_tags()