=== 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.ex() [0x65dd06]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:179:39

 1: ./Castro2d.gnu.TEST.TPROF.MPI.ex() [0x65fe7d]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:85:15

 2: ./Castro2d.gnu.TEST.TPROF.MPI.ex() [0x478d05]
    validate_runparams()
/raid/testing/castro-gfortran/Castro//Source/driver/runtime_parameters.H:107:56

 3: ./Castro2d.gnu.TEST.TPROF.MPI.ex() [0x46e0c2]
    amrex::FabArrayBase::RegionTag::~RegionTag() inlined at /raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:635:77 in Castro::Castro(amrex::Amr&, int, amrex::Geometry const&, amrex::BoxArray const&, amrex::DistributionMapping const&, double)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_FabArrayBase.H:430:37
Castro::Castro(amrex::Amr&, int, amrex::Geometry const&, amrex::BoxArray const&, amrex::DistributionMapping const&, double)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:635:77

 4: ./Castro2d.gnu.TEST.TPROF.MPI.ex() [0x4903ad]
    CastroBld::operator()(amrex::Amr&, int, amrex::Geometry const&, amrex::BoxArray const&, amrex::DistributionMapping const&, double)
/raid/testing/castro-gfortran/Castro//Source/driver/CastroBld.cpp:57:1

 5: ./Castro2d.gnu.TEST.TPROF.MPI.ex() [0x6b6a71]
    std::__uniq_ptr_impl<amrex::AmrLevel, std::default_delete<amrex::AmrLevel> >::reset(amrex::AmrLevel*) inlined at /usr/include/c++/10/bits/unique_ptr.h:456:12 in amrex::Amr::defBaseLevel(double, amrex::BoxArray const*, amrex::Vector<int, std::allocator<int> > const*)
/usr/include/c++/10/bits/unique_ptr.h:179:16
std::unique_ptr<amrex::AmrLevel, std::default_delete<amrex::AmrLevel> >::reset(amrex::AmrLevel*)
/usr/include/c++/10/bits/unique_ptr.h:456:12
amrex::Amr::defBaseLevel(double, amrex::BoxArray const*, amrex::Vector<int, std::allocator<int> > const*)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2533:23

 6: ./Castro2d.gnu.TEST.TPROF.MPI.ex() [0x6c26dd]
    amrex::Amr::InitializeInit(double, double, amrex::BoxArray const*, amrex::Vector<int, std::allocator<int> > const*) inlined at /raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1266:19 in amrex::Amr::init(double, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1283:5
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:1266:19
amrex::Amr::init(double, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1142:20

 7: ./Castro2d.gnu.TEST.TPROF.MPI.ex() [0x42a8bb]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:124:33

 8: /lib64/libc.so.6(__libc_start_main+0xf2) [0x7f4fe31b71e2]
    __libc_start_main
??:0

 9: ./Castro2d.gnu.TEST.TPROF.MPI.ex() [0x432b4e]
    _start
??:0


===== TinyProfilers ======
main()
Amr::init()
Amr::initialInit()
Amr::InitializeInit()
Amr::defBaseLevel()