=== 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: /raid/testing/castro-gpu/amrex/Tools/Plotfile//fcompare.pgi.ex() [0x5029eb]
    amrex::BLBackTrace::print_backtrace_info(_IO_FILE*)
??:0

 1: /raid/testing/castro-gpu/amrex/Tools/Plotfile//fcompare.pgi.ex() [0x502352]
    amrex::BLBackTrace::handler(int)
??:0

 2: /raid/testing/castro-gpu/amrex/Tools/Plotfile//fcompare.pgi.ex() [0x40ed67]
    main_main()
??:0

 3: /raid/testing/castro-gpu/amrex/Tools/Plotfile//fcompare.pgi.ex() [0x410c07]
    main
??:0

 4: /lib64/libc.so.6(__libc_start_main+0xf3) [0x7f26386831a3]
    __libc_start_main
??:0

 5: /raid/testing/castro-gpu/amrex/Tools/Plotfile//fcompare.pgi.ex() [0x40be9e]
    _start
??:0