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| GNU | PGI | INTEL | CRAY | Description |
|---|---|---|---|---|
| -g | -g | -g | -g | Produces symbolic debug information. |
| -pg | -pg | -pg | -pg | Generate extra code to write profile information suitable for the analysis program gprof. |
| -fcheck=bounds | -Mbounds | -check bounds | -R b | Add runtime array bounds checking for Fortran. |
| -Wuninitialized | - | -check uninit | - | Check for uninitialized variables. |
| -ffpe-trap=zero,invalid,overflow | -Ktrap=fp | -fpe-all=0 | -K trap=fp | Trap floating point exceptions:
|
| -fbacktrace | -Meh_frame | -traceback | - | Add debug information for runtime traceback. |
| -fconvert=swap | -byteswapio | -convert big_endian | -hbyteswapio | Specify the representation of data for unformatted files. |
| -ffree-line-length-132 | -Mextend | -extend-source 132 | -N 132 | Allow 132 characters source line lengths (in fixed format). |