=== 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: ./Maestro3d.pgi.CUDA.ex() [0x86cb36] amrex::BLBackTrace::print_backtrace_info(_IO_FILE*) tmp_build_dir/s/3d.pgi.CUDA.EXE/AMReX_BLBackTrace.cpp:167 1: ./Maestro3d.pgi.CUDA.ex() [0x86f2a2] amrex::BLBackTrace::handler(int) tmp_build_dir/s/3d.pgi.CUDA.EXE/AMReX_BLBackTrace.cpp:71 2: ./Maestro3d.pgi.CUDA.ex() [0x4e8a28] amrex::Gpu::synchronize() /raid/testing/maestroex-gpu/amrex//Src/Base/AMReX_GpuDevice.H:148 3: ./Maestro3d.pgi.CUDA.ex() [0x82e305] amrex::MFIter::~MFIter() tmp_build_dir/s/3d.pgi.CUDA.EXE/AMReX_MFIter.cpp:216 4: ./Maestro3d.pgi.CUDA.ex() [0x60e9da] Maestro::MakeEdgeScal(amrex::Vector >&, amrex::Vector, std::allocator > >&, amrex::Vector, std::allocator > >&, amrex::Vector >&, int, amrex::Vector > const&, int, int, int, int, int) tmp_build_dir/s/3d.pgi.CUDA.EXE/MaestroMakeEdgeScalars.cpp:199 5: ./Maestro3d.pgi.CUDA.ex() [0x4fb3c6] Maestro::DensityAdvance(int, amrex::Vector >&, amrex::Vector >&, amrex::Vector, std::allocator > >&, amrex::Vector, std::allocator > >&, amrex::Vector >&, amrex::Vector >&, amrex::Vector, std::allocator > >&, amrex::Vector, std::allocator > > const&, amrex::PODVector > const&) tmp_build_dir/s/3d.pgi.CUDA.EXE/MaestroDensityAdvance.cpp:131 6: ./Maestro3d.pgi.CUDA.ex() [0x441f01] Maestro::AdvanceTimeStep(bool) tmp_build_dir/s/3d.pgi.CUDA.EXE/MaestroAdvance.cpp:439 7: ./Maestro3d.pgi.CUDA.ex() [0x5c6530] Maestro::InitIter() tmp_build_dir/s/3d.pgi.CUDA.EXE/MaestroInit.cpp:808 8: ./Maestro3d.pgi.CUDA.ex() [0x5cd3e4] Maestro::Init() tmp_build_dir/s/3d.pgi.CUDA.EXE/MaestroInit.cpp:196 9: ./Maestro3d.pgi.CUDA.ex() [0x40bdab] main tmp_build_dir/s/3d.pgi.CUDA.EXE/main.cpp:63 10: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f87b08871a3] __libc_start_main ??:0 11: ./Maestro3d.pgi.CUDA.ex() [0x411aae] _start ??:0