=== 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: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x721336]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/castro-gpu/amrex//Src/Base/AMReX_BLBackTrace.cpp:179

 1: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x723fd9]
    amrex::BLBackTrace::handler(int)
/raid/testing/castro-gpu/amrex//Src/Base/AMReX_BLBackTrace.cpp:85

 2: /lib64/libc.so.6(+0x3da60) [0x7fb4a0bfea60]
    __restore_rt
??:0

 3: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x5e4f04]
    void amrex::BaseFab<int>::setVal<(amrex::RunOn)1>(int const&, amrex::Box const&, amrex::DestComp, amrex::NumComps)::{lambda(int, int, int, int)#1}::operator()(int, int, int, int) const inlined at /raid/testing/castro-gpu/amrex//Src/Base/AMReX_Loop.H:210 in void amrex::BaseFab<int>::setVal<(amrex::RunOn)1>(int const&, amrex::Box const&, amrex::DestComp, amrex::NumComps)
/raid/testing/castro-gpu/amrex//Src/Base/AMReX_BaseFab.H:3567
void amrex::LoopConcurrentOnCpu<void amrex::BaseFab<int>::setVal<(amrex::RunOn)1>(int const&, amrex::Box const&, amrex::DestComp, amrex::NumComps)::{lambda(int, int, int, int)#1}>(amrex::Box const&, int, void amrex::BaseFab<int>::setVal<(amrex::RunOn)1>(int const&, amrex::Box const&, amrex::DestComp, amrex::NumComps)::{lambda(int, int, int, int)#1}&&)
/raid/testing/castro-gpu/amrex//Src/Base/AMReX_Loop.H:210
void amrex::BaseFab<int>::setVal<(amrex::RunOn)1>(int const&, amrex::Box const&, amrex::DestComp, amrex::NumComps)
/raid/testing/castro-gpu/amrex//Src/Base/AMReX_BaseFab.H:3567

 4: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x5e5ec8]
    RadBndryData::define(amrex::BoxArray const&, amrex::DistributionMapping const&, int, ProxyGeometry const&)
/raid/testing/castro-gpu/Castro//Source/radiation/_interpbndry/RadBndryData.cpp:90

 5: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x5e7b4e]
    RadBndryData::RadBndryData(amrex::BoxArray const&, amrex::DistributionMapping const&, int, ProxyGeometry const&)
/raid/testing/castro-gpu/Castro//Source/radiation/_interpbndry/RadBndryData.cpp:27

 6: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x5e3577]
    RadInterpBndryData::RadInterpBndryData(amrex::BoxArray const&, amrex::DistributionMapping const&, int, amrex::Geometry const&)
/raid/testing/castro-gpu/Castro//Source/radiation/_interpbndry/RadInterpBndryData.cpp:52

 7: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x5aad08]
    RadBndry::RadBndry(amrex::BoxArray const&, amrex::DistributionMapping const&, amrex::Geometry const&)
/raid/testing/castro-gpu/Castro//Source/radiation/RadBndry.cpp:26

 8: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x5b1d73]
    Radiation::single_group_update(int, int, int)
/raid/testing/castro-gpu/Castro//Source/radiation/SGRadSolver.cpp:129

 9: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x4706ef]
    Castro::advance(double, double, int, int)
/raid/testing/castro-gpu/Castro//Source/driver/Castro_advance.cpp:118

10: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x79b25a]
    amrex::Amr::timeStep(int, double, int, int, double)
/raid/testing/castro-gpu/amrex//Src/Amr/AMReX_Amr.cpp:2015

11: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x790a09]
    amrex::Amr::coarseTimeStep(double)
/raid/testing/castro-gpu/amrex//Src/Amr/AMReX_Amr.cpp:2125

12: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x42f92a]
    main
/raid/testing/castro-gpu/Castro//Source/driver/main.cpp:151

13: /lib64/libc.so.6(__libc_start_main+0xf2) [0x7fb4a0be91e2]
    __libc_start_main
??:0

14: ./Castro1d.gnu.TPROF.MPI.CUDA.ex() [0x43a7be]
    _start
??:0


===== TinyProfilers ======
main()
Amr::coarseTimeStep()
Amr::timeStep()
Castro::advance()
Radiation::single_group_update