=== 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(+0x1a2c70) [0x55ee31ec3c70]
    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(+0x1a4ab0) [0x55ee31ec5ab0]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:80:8

 2: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x98dfd) [0x55ee31db9dfd]
    amrex::Assert_host(char const*, char const*, int, char const*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX.cpp:296:1

 3: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x17270f) [0x55ee31e9370f]
    amrex::Assert(char const*, char const*, int, char const*) inlined at /raid/testing/castro-gfortran/amrex//Src/Base/AMReX_MFIter.cpp:258:9 in amrex::MFIter::MFIter(amrex::FabArrayBase const&, unsigned char)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX.H:189:20
amrex::MFIter::Initialize()
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_MFIter.cpp:258:9
amrex::MFIter::MFIter(amrex::FabArrayBase const&, unsigned char)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_MFIter.cpp:27:15

 4: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x234cf6) [0x55ee31f55cf6]
    amrex::MFIter::fabbox() const inlined at /raid/testing/castro-gfortran/amrex//Src/Base/AMReX_FabArray.H:1498:36 in void amrex::FabArray<amrex::FArrayBox>::setDomainBndry<amrex::FArrayBox, 0>(double, int, int, amrex::Geometry const&)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_MFIter.H:147:85
void amrex::FabArray<amrex::FArrayBox>::setDomainBndry<amrex::FArrayBox, 0>(double, int, int, amrex::Geometry const&)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_FabArray.H:1498:36

 5: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x229578) [0x55ee31f4a578]
    amrex::FillPatchIterator::Initialize(int, double, int, int, int)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_AmrLevel.cpp:1000:32

 6: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x22a3c7) [0x55ee31f4b3c7]
    amrex::AmrLevel::FillPatch(amrex::AmrLevel&, amrex::MultiFab&, int, double, int, int, int, int)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_AmrLevel.cpp:2211:19

 7: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x22a61a) [0x55ee31f4b61a]
    amrex::AmrLevel::derive(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, double, int)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_AmrLevel.cpp:1636:18

 8: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x37966) [0x55ee31d58966]
    Castro::derive(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, double, int) inlined at /raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:3443:69 in Castro::apply_tagging_func(amrex::TagBoxArray&, double, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:3678:5
Castro::apply_tagging_func(amrex::TagBoxArray&, double, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:3443:69

 9: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x38cf2) [0x55ee31d59cf2]
    Castro::errorEst(amrex::TagBoxArray&, int, int, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:3267:5

10: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x1fcc42) [0x55ee31f1dc42]
    amrex::AmrMesh::MakeNewGrids(int, double, int&, amrex::Vector<amrex::BoxArray, std::allocator<amrex::BoxArray> >&)
/raid/testing/castro-gfortran/amrex//Src/AmrCore/AMReX_AmrMesh.cpp:574:14

11: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x20dd8d) [0x55ee31f2ed8d]
    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:2924:5

12: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x20f554) [0x55ee31f30554]
    amrex::Amr::bldFineLevels(double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2973:27

13: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x210156) [0x55ee31f31156]
    amrex::Amr::FinalizeInit(double, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1299:22

14: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x21506b) [0x55ee31f3606b]
    amrex::Amr::initialInit(double, double, amrex::BoxArray const*, amrex::Vector<int, std::allocator<int> > const*) inlined at /raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1116:20 in amrex::Amr::init(double, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1235:5
amrex::Amr::init(double, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:1116:20

15: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x20fc0) [0x55ee31d41fc0]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:131:33

16: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f07da97b1a3]
    __libc_start_main
??:0

17: ./Castro3d.gnu.TEST.TPROF.MPI.ex(+0x27e0e) [0x55ee31d48e0e]
    _start
??:0


===== TinyProfilers ======
main()
Amr::init()
Amr::initialInit()
Amr::FinalizeInit()
Amr::bldFineLevels()
Amr::grid_places()
AmrMesh::MakeNewGrids()
Castro::errorEst()
Castro::apply_tagging_func()
Castro::derive()
FillPatchIterator::Initialize