=== 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(+0x3af25c) [0x559fc9da625c]
    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(+0x3aec81) [0x559fc9da5c81]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:80:8

 2: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x27e305) [0x559fc9c75305]
    amrex::ParallelDescriptor::Abort(int, bool)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_ParallelDescriptor.cpp:230:22

 3: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x22c877) [0x559fc9c23877]
    amrex::detail::Abort_host_doit(char const*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX.cpp:200:1

 4: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x2abde) [0x559fc9a21bde]
    amrex::Abort(char const*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX.H:133:5

 5: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x43fa30) [0x559fc9e36a30]
    amrex::AmrMesh::MakeNewGrids(int, double, int&, amrex::Vector<amrex::BoxArray, std::allocator<amrex::BoxArray> >&)
/raid/testing/castro-gfortran/amrex//Src/AmrCore/AMReX_AmrMesh.cpp:775:13

 6: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x456798) [0x559fc9e4d798]
    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:3224:9

 7: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x452f03) [0x559fc9e49f03]
    amrex::Amr::regrid(int, double, bool)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2819:31

 8: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x456edb) [0x559fc9e4dedb]
    amrex::Amr::bldFineLevels(double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:3315:21

 9: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x44c952) [0x559fc9e43952]
    amrex::Amr::FinalizeInit(double, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1328:14

10: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x44c65d) [0x559fc9e4365d]
    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:1262:5

11: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x44bdee) [0x559fc9e42dee]
    amrex::Amr::init(double, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1144:13

12: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x77150) [0x559fc9a6e150]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:131:33

13: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7fa7d7ff21a3]
    __libc_start_main
??:0

14: ./Castro2d.gnu.DEBUG.TPROF.MPI.ex(+0x13bbe) [0x559fc9a0abbe]
    _start
??:0


===== TinyProfilers ======
main()
Amr::init()
Amr::initialInit()
Amr::FinalizeInit()
Amr::bldFineLevels()
Amr::regrid()
Amr::grid_places()
AmrMesh::MakeNewGrids()