=== 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) [0x55b97e1b8965] 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) [0x55b97e1ba596] amrex::BLBackTrace::handler(int) /raid/testing/castro-gfortran/amrex//Src/Base/AMReX_BLBackTrace.cpp:76:8 2: /lib64/libc.so.6(+0x3c6b0) [0x7f850642e6b0] __restore_rt ??:0 3: ./Castro2d.gnu.TEST.TPROF.MPI.TRUESDC.ex(+0xa6c90) [0x55b97e0a8c90] 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) [0x55b97e0a9029] 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) [0x55b97e0543f8] 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) [0x55b97e04e2a0] 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) [0x55b97e21d2ad] 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) [0x55b97e20f31a] 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) [0x55b97e0248ac] main /raid/testing/castro-gfortran/Castro//Source/driver/main.cpp:143:33 10: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f85064191a3] __libc_start_main ??:0 11: ./Castro2d.gnu.TEST.TPROF.MPI.TRUESDC.ex(+0x2cf4e) [0x55b97e02ef4e] _start ??:0 ===== TinyProfilers ====== main() Amr::coarseTimeStep() Amr::timeStep() Castro::advance() Castro::do_advance_sdc()