Compaq visual fortran compiler arguments

[ronkini_joseph]

Hi

I am using Compaq Visual Fortran for compiling the code.

When I am using following commands to run the code
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df /check:bounds /compile_only /dbglibs /debug:full /nologo /traceback /warn:argument_checking /warn:nofileopt /module:"./" /object:"./" /pdbfile:"./DF60.PDB" main.f


link.exe kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:yes /pdb:"./new_fanda.pdb" /debug /machine:I386 /out:"./junk.exe" /pdbtype:sept main.obj
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program gives correct output.

But when I use
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CALL df /c /automatic /architecture:pn3 /Ob2 /MD main.f


link.exe kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /incremental:yes /pdb:"./new_fanda.pdb" /debug /machine:I386 /out:"./junk.exe" /pdbtype:sept main.obj
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same programs give NAN error.

1) can any body tell why is this happening.
2) Where in compaq visual fortran I can change the arguments for df so that I can debug the code?

Ronkini