=== 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: ./Maestro2d.gnu.CUDA.ex() [0x71e276]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
/raid/testing/maestroex-gpu/amrex//Src/Base/AMReX_BLBackTrace.cpp:179

 1: ./Maestro2d.gnu.CUDA.ex() [0x720f19]
    amrex::BLBackTrace::handler(int)
/raid/testing/maestroex-gpu/amrex//Src/Base/AMReX_BLBackTrace.cpp:85

 2: /lib64/libc.so.6(+0x3da70) [0x7fa22cca8a70]
    __restore_rt
??:0

 3: ./Maestro2d.gnu.CUDA.ex() [0x436af0]
    void amrex::FabArray<amrex::FArrayBox>::build_arrays<amrex::FArrayBox, 0>() const
/raid/testing/maestroex-gpu/amrex//Src/Base/AMReX_FabArray.H:1355

 4: ./Maestro2d.gnu.CUDA.ex() [0x6da162]
    amrex::MultiArray4<double const> amrex::FabArray<amrex::FArrayBox>::arrays<amrex::FArrayBox, 0>() const inlined at /raid/testing/maestroex-gpu/amrex//Src/Base/AMReX_MFParallelForG.H:89 in amrex::average_cellcenter_to_face(std::array<amrex::MultiFab*, 2ul> const&, amrex::MultiFab const&, amrex::Geometry const&, int, bool)
/raid/testing/maestroex-gpu/amrex//Src/Base/AMReX_FabArray.H:1326
std::enable_if<amrex::IsFabArray<amrex::MultiFab, void>::value, void>::type amrex::experimental::detail::ParallelFor<256, amrex::MultiFab, __nv_dl_wrapper_t<__nv_dl_tag<void (*)(std::array<amrex::MultiFab*, 2ul> const&, amrex::MultiFab const&, amrex::Geometry const&, int, bool), &amrex::average_cellcenter_to_face, 1u>, amrex::MultiArray4<double const> const, amrex::IntVect, amrex::MultiArray4<double> const, amrex::MultiArray4<double> const, bool> >(amrex::MultiFab const&, amrex::IntVect const&, int, amrex::IntVect const&, bool, __nv_dl_wrapper_t<__nv_dl_tag<void (*)(std::array<amrex::MultiFab*, 2ul> const&, amrex::MultiFab const&, amrex::Geometry const&, int, bool), &amrex::average_cellcenter_to_face, 1u>, amrex::MultiArray4<double const> const, amrex::IntVect, amrex::MultiArray4<double> const, amrex::MultiArray4<double> const, bool>&&)
/raid/testing/maestroex-gpu/amrex//Src/Base/AMReX_MFParallelForG.H:89
std::enable_if<amrex::IsFabArray<amrex::MultiFab, void>::value, void>::type amrex::experimental::detail::ParallelFor<amrex::MultiFab, __nv_dl_wrapper_t<__nv_dl_tag<void (*)(std::array<amrex::MultiFab*, 2ul> const&, amrex::MultiFab const&, amrex::Geometry const&, int, bool), &amrex::average_cellcenter_to_face, 1u>, amrex::MultiArray4<double const> const, amrex::IntVect, amrex::MultiArray4<double> const, amrex::MultiArray4<double> const, bool> >(amrex::MultiFab const&, amrex::IntVect const&, int, amrex::IntVect const&, bool, __nv_dl_wrapper_t<__nv_dl_tag<void (*)(std::array<amrex::MultiFab*, 2ul> const&, amrex::MultiFab const&, amrex::Geometry const&, int, bool), &amrex::average_cellcenter_to_face, 1u>, amrex::MultiArray4<double const> const, amrex::IntVect, amrex::MultiArray4<double> const, amrex::MultiArray4<double> const, bool>&&)
/raid/testing/maestroex-gpu/amrex//Src/Base/AMReX_MFParallelForG.H:151
std::enable_if<amrex::IsFabArray<amrex::MultiFab, void>::value, void>::type amrex::experimental::ParallelFor<amrex::MultiFab, __nv_dl_wrapper_t<__nv_dl_tag<void (*)(std::array<amrex::MultiFab*, 2ul> const&, amrex::MultiFab const&, amrex::Geometry const&, int, bool), &amrex::average_cellcenter_to_face, 1u>, amrex::MultiArray4<double const> const, amrex::IntVect, amrex::MultiArray4<double> const, amrex::MultiArray4<double> const, bool> >(amrex::MultiFab const&, int, __nv_dl_wrapper_t<__nv_dl_tag<void (*)(std::array<amrex::MultiFab*, 2ul> const&, amrex::MultiFab const&, amrex::Geometry const&, int, bool), &amrex::average_cellcenter_to_face, 1u>, amrex::MultiArray4<double const> const, amrex::IntVect, amrex::MultiArray4<double> const, amrex::MultiArray4<double> const, bool>&&)
/raid/testing/maestroex-gpu/amrex//Src/Base/AMReX_MFParallelFor.H:148
amrex::average_cellcenter_to_face(std::array<amrex::MultiFab*, 2ul> const&, amrex::MultiFab const&, amrex::Geometry const&, int, bool)
/raid/testing/maestroex-gpu/amrex//Src/Base/AMReX_MultiFabUtil.cpp:308

 5: ./Maestro2d.gnu.CUDA.ex() [0x4e4c9f]
    Maestro::MacProj(amrex::Vector<std::array<amrex::MultiFab, 2ul>, std::allocator<std::array<amrex::MultiFab, 2ul> > >&, amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> >&, amrex::Vector<amrex::MultiFab, std::allocator<amrex::MultiFab> > const&, BaseState<double> const&, bool)
../../../Source/MaestroMacProj.cpp:100

 6: ./Maestro2d.gnu.CUDA.ex() [0x42eb99]
    Maestro::AdvanceTimeStep(bool)
../../../Source/MaestroAdvance.cpp:385

 7: ./Maestro2d.gnu.CUDA.ex() [0x4d09bd]
    Maestro::InitIter()
../../../Source/MaestroInit.cpp:751

 8: ./Maestro2d.gnu.CUDA.ex() [0x4d540b]
    Maestro::Init()
../../../Source/MaestroInit.cpp:195

 9: ./Maestro2d.gnu.CUDA.ex() [0x40c409]
    main
../../../Source/main.cpp:61

10: /lib64/libc.so.6(__libc_start_main+0xf2) [0x7fa22cc931e2]
    __libc_start_main
??:0

11: ./Maestro2d.gnu.CUDA.ex() [0x41a92e]
    _start
??:0