=== 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() [0x5b8916]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:179:39

 1: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x5baa8d]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:85:15

 2: /lib64/libc.so.6(+0x3da70) [0x7f17074b9a70]
    __restore_rt
??:0

 3: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x606ca5]
    amrex::mf_cell_cons_lin_interp_mcslope(int, int, int, int, amrex::Array4<double> const&, amrex::Array4<double const> const&, int, int, amrex::Box const&, amrex::IntVect const&, amrex::BCRec const*) inlined at /raid/testing/castro-gfortran/amrex//Src/AmrCore/AMReX_Interpolater.cpp:475:13 in amrex::CellConservativeLinear::interp(amrex::FArrayBox const&, int, amrex::FArrayBox&, int, int, amrex::Box const&, amrex::IntVect const&, amrex::Geometry const&, amrex::Geometry const&, amrex::Vector<amrex::BCRec, std::allocator<amrex::BCRec> > const&, int, int, amrex::RunOn)
/raid/testing/castro-gfortran/amrex//Src/AmrCore/AMReX_MFInterp_3D_C.H:108:60
operator()
/raid/testing/castro-gfortran/amrex//Src/AmrCore/AMReX_Interpolater.cpp:475:13
LoopConcurrentOnCpu<amrex::CellConservativeLinear::interp(const amrex::FArrayBox&, int, amrex::FArrayBox&, int, int, const amrex::Box&, const amrex::IntVect&, const amrex::Geometry&, const amrex::Geometry&, const amrex::Vector<amrex::BCRec>&, int, int, amrex::RunOn)::<lambda(int, int, int, int)> >
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_Loop.H:210:10
amrex::CellConservativeLinear::interp(amrex::FArrayBox const&, int, amrex::FArrayBox&, int, int, amrex::Box const&, amrex::IntVect const&, amrex::Geometry const&, amrex::Geometry const&, amrex::Vector<amrex::BCRec, std::allocator<amrex::BCRec> > const&, int, int, amrex::RunOn)
/raid/testing/castro-gfortran/amrex//Src/AmrCore/AMReX_Interpolater.cpp:475:13

 4: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x64aab5]
    std::enable_if<amrex::IsFabArray<amrex::MultiFab, void>::value&&(!std::is_same<amrex::Interpolater, amrex::MFInterpolater>::value), void>::type amrex::FillPatchInterp<amrex::MultiFab, amrex::Interpolater>(amrex::MultiFab&, int, amrex::MultiFab const&, int, int, amrex::IntVect const&, amrex::Geometry const&, amrex::Geometry const&, amrex::Box const&, amrex::IntVect const&, amrex::Interpolater*, amrex::Vector<amrex::BCRec, std::allocator<amrex::BCRec> > const&, int)
/raid/testing/castro-gfortran/amrex//Src/AmrCore/AMReX_FillPatchUtil_I.H:191:27

 5: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x6448f4]
    FillPatchTwoLevels_doit<amrex::MultiFab, amrex::StateDataPhysBCFunct, amrex::InterpBase, amrex::NullInterpHook<amrex::FArrayBox>, amrex::NullInterpHook<amrex::FArrayBox> > inlined at /raid/testing/castro-gfortran/amrex//Src/AmrCore/AMReX_FillPatchUtil_I.H:641:28 in amrex::FillPatchIterator::FillFromTwoLevels(double, int, int, int, int)
/raid/testing/castro-gfortran/amrex//Src/AmrCore/AMReX_FillPatchUtil_I.H:410:32
std::enable_if<amrex::IsFabArray<amrex::MultiFab, void>::value, void>::type amrex::FillPatchTwoLevels<amrex::MultiFab, amrex::StateDataPhysBCFunct, amrex::InterpBase, amrex::NullInterpHook<amrex::FArrayBox>, amrex::NullInterpHook<amrex::FArrayBox> >(amrex::MultiFab&, double, amrex::Vector<amrex::MultiFab*, std::allocator<amrex::MultiFab*> > const&, amrex::Vector<double, std::allocator<double> > const&, amrex::Vector<amrex::MultiFab*, std::allocator<amrex::MultiFab*> > const&, amrex::Vector<double, std::allocator<double> > const&, int, int, int, amrex::Geometry const&, amrex::Geometry const&, amrex::StateDataPhysBCFunct&, int, amrex::StateDataPhysBCFunct&, int, amrex::IntVect const&, amrex::InterpBase*, amrex::Vector<amrex::BCRec, std::allocator<amrex::BCRec> > const&, int, amrex::NullInterpHook<amrex::FArrayBox> const&, amrex::NullInterpHook<amrex::FArrayBox> const&)
/raid/testing/castro-gfortran/amrex//Src/AmrCore/AMReX_FillPatchUtil_I.H:641:28
amrex::FillPatchIterator::FillFromTwoLevels(double, int, int, int, int)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_AmrLevel.cpp:1139:30

 6: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x64502a]
    amrex::FillPatchIterator::Initialize(int, double, int, int, int)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_AmrLevel.cpp:1022:34

 7: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x646031]
    amrex::AmrLevel::FillPatch(amrex::AmrLevel&, amrex::MultiFab&, int, double, int, int, int, int)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_AmrLevel.cpp:2192:19

 8: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x428b70]
    Castro::expand_state(amrex::MultiFab&, double, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro.cpp:4207:22

 9: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x43d16e]
    Castro::initialize_do_advance(double)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:186:18

10: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x43e22b]
    Castro::do_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:60:5

11: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x43ed1d]
    advance_status::operator=(advance_status&&) inlined at /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:649:90 in Castro::subcycle_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro.H:132:8
Castro::subcycle_advance_ctu(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_ctu.cpp:649:90

12: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x43d85a]
    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++/10/bits/stl_algobase.h:236:9
Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:55:92

13: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x6360b9]
    std::vector<double, std::allocator<double> >::operator[](unsigned long) inlined at /raid/testing/castro-gfortran/amrex//Src/Base/AMReX_Vector.H:37:59 in amrex::Amr::timeStep(int, double, int, int, double)
/usr/include/c++/10/bits/stl_vector.h:1046:39
amrex::Vector<double, std::allocator<double> >::operator[](unsigned long)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_Vector.H:37:59
amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2018:68

14: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x636212]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2061:13

15: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x636212]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2061:13

16: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x636212]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2061:13

17: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x62d060]
    amrex::Amr::coarseTimeStep(double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2125:13

18: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x42033d]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:136:33

19: /lib64/libc.so.6(__libc_start_main+0xf2) [0x7f17074a41e2]
    __libc_start_main
??:0

20: ./Castro3d.gnu.TEST.TPROF.MPI.ex() [0x426a1e]
    _start
??:0


===== TinyProfilers ======
main()
Amr::coarseTimeStep()
Amr::timeStep()
Amr::timeStep()
Amr::timeStep()
Amr::timeStep()
Castro::advance()
Castro::subcycle_advance_ctu()
Castro::do_advance_ctu()
Castro::initialize_do_advance()
Castro::expand_state()
FillPatchIterator::Initialize
FillPatchTwoLevels
FillPatchInterp(Fab)
CellConservativeLinear::interp()