=== If no file names and line numbers are shown below, one can run
            addr2line -Cfie my_exefile my_line_address
    to convert `my_line_address` (e.g., 0x4a6b) into file name and line number.

=== 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.MPI.ex() [0x5d4018]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:107

 1: ./Castro2d.gnu.DEBUG.MPI.ex() [0x5d3e21]
    amrex::BLBackTrace::handler(int)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BLBackTrace.cpp:55

 2: ./Castro2d.gnu.DEBUG.MPI.ex() [0x524b48]
    amrex::ParallelDescriptor::Abort(int, bool)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_ParallelDescriptor.cpp:221

 3: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4e7e66]
    amrex::Assert(char const*, char const*, int, char const*)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX.cpp:333

 4: ./Castro2d.gnu.DEBUG.MPI.ex() [0x41d719]
    amrex::StridedPtr<int*>::operator()(int, int, int, int) const
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:70
    amrex::BaseFab<int>::performSetVal(int, amrex::Box const&, int, int)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:2180

 5: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4883ac]
    amrex::BaseFab<int>::setVal(int, amrex::Box const&, int)
    /raid/testing/castro-gfortran/AMReX//Src/Base/AMReX_BaseFab.H:1835

 6: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4e6175]
    RadBndryData::define(amrex::BoxArray const&, amrex::DistributionMapping const&, int, ProxyGeometry const&)
    /raid/testing/castro-gfortran/Castro//Source/radiation/_interpbndry/RadBndryData.cpp:94

 7: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4e5843]
    RadBndryData::RadBndryData(amrex::BoxArray const&, amrex::DistributionMapping const&, int, ProxyGeometry const&)
    /raid/testing/castro-gfortran/Castro//Source/radiation/_interpbndry/RadBndryData.cpp:27

 8: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4e485a]
    RadInterpBndryData::RadInterpBndryData(amrex::BoxArray const&, amrex::DistributionMapping const&, int, amrex::Geometry const&)
    /raid/testing/castro-gfortran/Castro//Source/radiation/_interpbndry/RadInterpBndryData.cpp:53

 9: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4c7e04]
    NGBndry::NGBndry(amrex::BoxArray const&, amrex::DistributionMapping const&, int, amrex::Geometry const&)
    /raid/testing/castro-gfortran/Castro//Source/radiation/NGBndry.H:14

10: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4c66d4]
    RadBndry::RadBndry(amrex::BoxArray const&, amrex::DistributionMapping const&, amrex::Geometry const&)
    /raid/testing/castro-gfortran/Castro//Source/radiation/RadBndry.cpp:24

11: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4ce9d2]
    Radiation::single_group_update(int, int, int)
    /raid/testing/castro-gfortran/Castro//Source/radiation/SGRadSolver.cpp:120

12: ./Castro2d.gnu.DEBUG.MPI.ex() [0x4e2d7a]
    Castro::final_radiation_call(amrex::MultiFab&, int, int)
    /raid/testing/castro-gfortran/Castro//Source/radiation/Castro_radiation.cpp:49

13: ./Castro2d.gnu.DEBUG.MPI.ex() [0x427b42]
    Castro::advance(double, double, int, int)
    /raid/testing/castro-gfortran/Castro//Source/driver/Castro_advance.cpp:158

14: ./Castro2d.gnu.DEBUG.MPI.ex() [0x600409]
    amrex::Amr::timeStep(int, double, int, int, double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2044

15: ./Castro2d.gnu.DEBUG.MPI.ex() [0x600bfa]
    amrex::Amr::coarseTimeStep(double)
    /raid/testing/castro-gfortran/AMReX//Src/Amr/AMReX_Amr.cpp:2276

16: ./Castro2d.gnu.DEBUG.MPI.ex() [0x44abbd]
    main
    /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:132

17: /lib64/libc.so.6(__libc_start_main+0xea) [0x7f7b02fd5fea]
    ??
    ??:0

18: ./Castro2d.gnu.DEBUG.MPI.ex() [0x40a59a]
    _start
    ??:?