Re: HP-UX 11.0 64Bit and Oracle 8.0.x

You misunderstand. Yes, the system is booted as on or the other; but both sets of libraries are there and the appropriate one is linked by cleverness, automatically. Clearly, 64 bit binaries can not be run under 32-bit HP-UX; but the other way around does work. One may COMPILE 64-bit on the 32-bit system. See the HP WEB site for more detail. The HP-UX 11 kit includes plenty of documentation on this too. Of course, which precision to run depends upon the application - need for large memory, disc space, i/o balance etc.. In general 32-bit HP-UX will be faster; but for, say, large simulations, very big databases the situation may change radically.

        Not clear what you mean by "upgrade process". I suppose that one would not want to switch randomly (all your 64-bit objects would be useless at 32-bit mode); but the directory structure etc. would stay the same as far as I know.

Ian Spare wrote:
>
> On Wed, 07 Oct 1998 10:15:42 +0100, "P. J. Isserlis"
> <jeremy_isserlis_at_non-hp-unitedkingdom-om1.om.hp.com> wrote:
>
> >If you get HP-UX 11 for a PA8*** chip on which 64 bit is implemented it
> >is not a case of installing one or the other: having installed, one may
> >boot into 32 or 64 bit - simple config change in one place (that I can
> >not remember).
>
> That would surprise me, either you've installed 64-bit libraries and
> binaries or you haven't I would think. Presumably the kernel can't be
> linked with both 64 and 32-bit libraries. The documentation also
> specifically states that systems can be switched from 32 to 64 and
> vice-versa but that this is an upgrade type process. It must also be
> quite hard since any executable built for 64 wouldn't actually run and
> all executable must link to libraries of the same word length I think.
>
> Ian
  Received on Thu Oct 15 1998 - 00:00:00 CDT