Equivalent option to pgi's "-byteswapio" ?

[jfkfcia]

Hi, I'm trying to adapt a Makefile originally intended to be use with the PGI compiler package, to the Intel fortan compiler. I've not been able to find an equivalent option to pgi's "-byteswapio".

This option swaps bytes from big-endian to little-endian (or vice-versa) on input/output of unformatted data. This is required by the program so that it can read input data created on big-endian machines.

Also, is there a way to disable Fortran 95 warnings ("This feature is obsolescent in Fortan 95") for Fortan 90 code?

thanks,
jfk.

[Steven_L_Intel1]

I'm away from the office and can't easily check this, but if you look in the User's Guide, you'll find information about defining an environment variable to specify "big-endian" unformatted I/O.

You have to disable informational messages to turn off the obsolescent feature messages.

Steve

[jfkfcia]

Hi Steve,

Yes, I've seen the environment variable F_UFMTENDIAN, but the problem is that it seems to be a runtime variable, only.

Is there nothing that can set this permanently, compile-time? A runtime variable is very inconvenient as it would conflict with any other (ifc-built) Fortran executables we use that do not require big-endian i/o.

thanks,
jfk.

[jfkfcia]

Hi,

So there is nothing to specify big-endian file i/o at compile time? I tried "-convert big_endian" as a compile-time option after seeing that in the Visual Fortran forum, but it doesn't work.

thanks,
jfk.

[Steven_L_Intel1]

Not in the current version. A release late this year should have it.

Steve

[jfkfcia]

Hmmm...okay. Thanks for the explanation, Steve.