=== 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.TRUESDC.ex(+0x1b6965) [0x559c42a38965]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:172:39

 1: ./Castro2d.gnu.TEST.TPROF.MPI.TRUESDC.ex(+0x1b8596) [0x559c42a3a596]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:76:8

 2: /lib64/libc.so.6(+0x3c6b0) [0x7f8ca736d6b0]
    __restore_rt
??:0

 3: ./Castro2d.gnu.TEST.TPROF.MPI.TRUESDC.ex(+0xa6c90) [0x559c42928c90]
    Castro::compute_laplacian(int, int, int, int, amrex::Array4<double const> const&, amrex::GpuArray<bool, 2ul> const&, amrex::GpuArray<bool, 2ul> const&, amrex::GpuArray<int, 3ul> const&, amrex::GpuArray<int, 3ul> const&) inlined at /raid/testing/castro-gfortran/Castro//Source/hydro/fourth_center_average.cpp:196:35 in Castro::make_fourth_in_place_n(amrex::Box const&, amrex::Array4<double> const&, int, amrex::Array4<double> const&, amrex::GpuArray<int, 3ul> const&, amrex::GpuArray<int, 3ul> const&)
/raid/testing/castro-gfortran/Castro//Source/hydro/fourth_center_average.H:20:3
operator()
/raid/testing/castro-gfortran/Castro//Source/hydro/fourth_center_average.cpp:196:35
ParallelFor<Castro::make_fourth_in_place_n(const amrex::Box&, const amrex::Array4<double>&, int, const amrex::Array4<double>&, const amrex::GpuArray<int, 3>&, const amrex::GpuArray<int, 3>&)::<lambda(int, int, int)> >
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_GpuLaunchFunctsC.H:50:10
Castro::make_fourth_in_place_n(amrex::Box const&, amrex::Array4<double> const&, int, amrex::Array4<double> const&, amrex::GpuArray<int, 3ul> const&, amrex::GpuArray<int, 3ul> const&)
/raid/testing/castro-gfortran/Castro//Source/hydro/fourth_center_average.cpp:193:21

 4: ./Castro2d.gnu.TEST.TPROF.MPI.TRUESDC.ex(+0xa7029) [0x559c42929029]
    Castro::make_fourth_in_place(amrex::Box const&, amrex::Array4<double> const&, amrex::Array4<double> const&, amrex::GpuArray<int, 3ul> const&, amrex::GpuArray<int, 3ul> const&)
/raid/testing/castro-gfortran/Castro//Source/hydro/fourth_center_average.cpp:164:21

 5: ./Castro2d.gnu.TEST.TPROF.MPI.TRUESDC.ex(+0x523f8) [0x559c428d43f8]
    amrex::FabArray<amrex::FArrayBox>::fabPtr(amrex::MFIter const&) inlined at /raid/testing/castro-gfortran/amrex//Src/Base/AMReX_FabArray.H:286:59 in Castro::do_advance_sdc(double, double, int, int)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_FabArray.H:902:28
amrex::FabArray<amrex::FArrayBox>::operator[](amrex::MFIter const&)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_FabArray.H:286:59
Castro::do_advance_sdc(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance_sdc.cpp:347:16

 6: ./Castro2d.gnu.TEST.TPROF.MPI.TRUESDC.ex(+0x4c2a0) [0x559c428ce2a0]
    Castro::advance(double, double, int, int)
/raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:62:42

 7: ./Castro2d.gnu.TEST.TPROF.MPI.TRUESDC.ex(+0x21b2ad) [0x559c42a9d2ad]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2054:81

 8: ./Castro2d.gnu.TEST.TPROF.MPI.TRUESDC.ex(+0x20d31a) [0x559c42a8f31a]
    std::vector<double, std::allocator<double> >::operator[](unsigned long) inlined at /raid/testing/castro-gfortran/amrex//Src/Base/AMReX_Vector.H:34:54 in amrex::Amr::coarseTimeStep(double)
/usr/include/c++/9/bits/stl_vector.h:1042:2
amrex::Vector<double, std::allocator<double> >::operator[](unsigned long)
/raid/testing/castro-gfortran/amrex//Src/Base/AMReX_Vector.H:34:54
amrex::Amr::coarseTimeStep(double)
/raid/testing/castro-gfortran/amrex//Src/Amr/AMReX_Amr.cpp:2381:26

 9: ./Castro2d.gnu.TEST.TPROF.MPI.TRUESDC.ex(+0x228ac) [0x559c428a48ac]
    main
/raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:143:33

10: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f8ca73581a3]
    __libc_start_main
??:0

11: ./Castro2d.gnu.TEST.TPROF.MPI.TRUESDC.ex(+0x2cf4e) [0x559c428aef4e]
    _start
??:0


===== TinyProfilers ======
main()
Amr::coarseTimeStep()
Amr::timeStep()
Castro::advance()
Castro::do_advance_sdc()