Ross,
> Support for 64 bit addressing has nothing to do with the language. There is
> no restriction on F77 supporting 64 bit address space. The limitation comes
> from how the compiler chooses to interpret the language.
>
> You should check the man page for your compiler and see if there is an
> option related to 32 bit / 64 bit compilation.
The original poster was on a SGI Onyx 3800 (and has apparently already
figured this out). Figured I'd post the "how to" as William didn't.
In the MIPSpro compiler,
$ man f90
...
The f90 command accepts the following options:
-64, -n32 Specifies the Application Binary Interface (ABI).
Option Action
-64 Generates 64-bit objects.
-n32 Generates 32-bit objects. When in effect, the
total memory allocation for a program and
individual arrays cannot exceed 2 Gbytes.
...
The file /etc/compiler.defaults contains the obvious, and on all of
the SGI machines I've seen, it has always contained "abi=n32".
Therefore, by default, all programs get compiled to the n32 ABI -
perhaps so that it would be possible to run them on O2s and other
ancient beasts (Indigo2 R4400, Indy, etc :) that did not support
the fully 64-bit ABI.
--
Atro Tossavainen (Mr.) / The Institute of Biotechnology at
Systems Analyst, Techno-Amish & / the University of Helsinki, Finland,
+358-9-19158939 SGI Nerd / employs me, but my opinions are my own.
< URL : http : / / www . helsinki . fi / %7E atossava / > NO FILE ATTACHMENTS
-----------------------------------------------------------------------
The AMBER Mail Reflector
To post, send mail to amber.scripps.edu
To unsubscribe, send "unsubscribe amber" to majordomo.scripps.edu
Received on Sun Aug 27 2006 - 06:07:22 PDT
